Desing Submittal of 30 MVA Transformers

SUBMITTAL DOCUMENT

APPENDIX

CONTRACT : 220kV & 66kV Development 2007 - 2011

66KV SUBSTATIONS TRANSFORMERS

CONTRACT No. : 4605/2008/3100

SUBMISSION NUMBER : 4605/DS/001_A DATE : 20.08.2009

DESCRIPTION : Desing Submittal of 30 MVA Transformers

Item : Document Title : Doc. size Rev.

A3-A4 0

FOR ESBI USE : Date received : Approval Status :

Date Reference Comments

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Documen No. :

E2823999

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Drawings List

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ACCESSORIES LIST

Elektromotoren und Gerätebau Barleben GmbH

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Transformer Protection Relays (Buchholz Principle)


2

Content

Item No. Heading Page

Firm’s history 3

Preface 3

1. Design features 4

2. Function 6

3. Tests 7

4. Type list 8

4.1. Single-float Buchholz relays with thread connection 8

4.2. Single-float Buchholz relays with flange connection 8

4.3. Single-float Buchholz relays - possible switching system designs 9

4.4. Double-float Buchholz relays with thread connection 10

4.5. Double-float Buchholz relays with flange connection (round) 11

4.6. Double-float Buchholz relays with flange connection (square) 13

4.7. Double-float Buchholz relays with geometrical flange dimensions according to former Chinese norm

13

4.8. Double-float Buchholz relays with geometrical flange dimensions according to French norm

14

4.9. Double-float Buchholz relays with geometrical flange dimensions according to British standard

15

4.10. Double-float Buchholz relays - possible switching system designs 16

5. Technical data 20

6. Special designs 21

6.1. Explanations to identif. no. 32 22

6.2. Explanations to identif. no. 60 22

7. Ordering data 23

8. Additional devices for Buchholz relays 24

9. Further protection devices 27

3

Firm’s history Since its foundation the company has been passed through an eventful history with regard to ownership, affiliation and connected with this changes of firm names. 1863 Foundation of the company as sugar factory 1943 Establishment of SIEMENS Magdeburg 1948 VEB1 Elektromotorenwerk Barleben; VEM (state-owned firm) 1951 VEB1 Starkstromanlagenbau Magdeburg (state-owned firm) 1951 Start of manufacturing Buchholz relays at site in Barleben 1970 VEB1 Elektrotechnik und Gerätebau Magdeburg; EGEM (state-owned firm) 1980 VEB1 Kombinat Elektromaschinenbau Dresden VEB1 Elektromotorenwerk Barleben; VEM; ELMO (state-owned firm) 1990 VEM Antriebstechnik AG Dresden Elektromotorenwerk Barleben GmbH; VEM; ELMO (public limited company) 1993 Elektromotoren und Gerätebau Barleben GmbH; EMB (privately owned company)

Preface The Buchholz relay was developed in 1921 by Max Buchholz, Oberrat at the Prussian Electric supply company - PLC in Kassel. Since that time it has been an important protection and monitoring device for liquid-cooled transformers and choke coils. It is known for its easy operation, high reliability, maintenance-free operation and extremely long life.

The Buchholz relay is built in the cooling cycle of the appliances to be protected and responds in the event of troubles like gas accumulation, loss as well as high flow of the insulation liquid. For transformers with hermetical closure by means of a membrane (rubber sack) in the expansion tank Buchholz relays can be used also as indicating device (“Air Cell Failure Relay”) of this membrane.

The company has had for more than 50 years experience in producing Buchholz relays and other protection devices for liquid-cooled appliances. It ranks among the most distinguished manufacturers of this kind of equipment. Experiences collected and profound know-how are the sound basis for a high product quality. References from reputed transformer manufacturers and further users are proof of the high level of the products. The company is ISO 9001/2000 certified.

The staff of highly qualified engineers and experienced skilled workers do their best to guarantee top quality high-precision products. The mechanical working of the casings is done on modern CNC-controlled machine tools. The final tests, where all the functions of the Buchholz relays are checked, are done with each device by using special test equipment. Each device is delivered with a test certificate.

The type diversity of the Buchholz relays is tailored to norms and standards as well as to special customer demands. EMB-Buchholz relays are in compliance with EN 50216.

The type of relay to be used depends on nominal rating and construction features of appliance to be protected. Our range of products permits optimum adaptation to actual requirements.

Buchholz relays may be used in open-air or also in indoor equipment.

1 VEB = nationally owned firm


4

1. Design features Casing (Figures 1A and 1B) The casing is a weather-resistant casting of light alloy and is provided with a paint coat. It is supplied either with screwed or flanged ends (1). The variants of casings are shown under para. 4, further are possible on request.

The casing has sightglasses (2) for inspection of function of the switching systems. The sightglasses with scale divisions permit reading of collected gas volume.

The relays can be equipped with lids (3, may be folded up) before the sightglasses.

Figure 1A: casing with flange connection

Figure 1B: casing with thread connection

Figure 2: cover with dismantled cap

Cover (Figure 2) The cover is a weather-resistant casting of light alloy and is provided with a paint coat. Terminal box (1), test valve (2) and test key, covered by a cap nut (3) as well as a plate for operation of the test key (4) are arranged above the cover. The terminal box has an earthing contact (5) and at most eight electrical connectors (6). By the number of these connectors the design of the switching systems concerning kind and quantity of the magnet contact tubes is determined.

The aluminium cap (7) seals the terminal box. If the cap is opened the contact setting (8) can be seen. The cable may be optionally brought in through one of both cable glands (9).

3

1

2

1

2 3

5

6

7

8

99

4

5

Switchgear (Figures 3A and 3B) The switchgear has the following main components:

- Switching system - Carrier, frame - Mechanical testing device.

Whereas the single-float Buchholz relay has only one switching system, the double-float Buchholz relay has an upper and a lower switching system. Permanent magnet and float are rigidly linked forming an unit that is movably fitted to the frame together with mechanical testing device and magnet contact tube(s).

Figure 3A: Switchgear of a single-float Buchholz relay

Switchgear of a single-float Buchholz relay: float (1) permanent magnet(s) (2) one or more magnet contact tube(s) (3) frame (4) mechanical testing device (5) damper (6) The damper is hold by permanent magnets.

Switchgear of a double-float Buchholz relay: upper float (1) lower float (1a) permanent magnet(s) for upper float (2) permanent magnet(s) for lower float (2a) one or more magnet contact tube(s) for upper switching system (3) one or more magnet contact tube(s) for lower switching system (3a) frame (4) mechanical testing device (5) damper (6) The damper is hold by permanent magnets and acts on the lower switching system.

Figure 3B: Switchgear of a double-float Buchholz relay

1

2

3

4

5

6

1

1a

2

2a

3

3a

4

5

6


6

2. Function In the following the operation of a Buchholz relay is explained using the example of a double-float Buchholz relay. The relay is built in the connecting pipe between the transformer tank and the conservator. During normal operation it is filled completely with insulating liquid. Due to buoyancy the floats are at their top position. If a fault occurs inside the transformer, the Buchholz relay responds as follows: Gas accumulation (Figure 4) Fault: Free gas is available in the insulating liquid.

Response: The gas in the liquid moves upwards, accumulates in the Buchholz relay and displaces the insulating liquid level. The moving float actuates a switch contact (magnet contact tube). An alarm signal is tripped. The lower float is not affected as from a certain gas volume the gas flows through a piping to the conservator.

Gas

Oil

Figure 4: Gas accumulation Insulating liquid loss (Figure 5) Fault: Insulating liquid loss due to leakage.

Response: As the liquid level falls the top float moves downward. An alarm is tripped. If the liquid loss continues, conservator and piping as well as the Buchholz relay will be emptied. As the liquid level falls, the lower float moves downward. The moving float actuates a switch contact so that the transformer is disconnected.

Air

Oil

Figure 5: Insulating liquid loss Insulating liquid flow (Figure 6) Fault: A spontaneous incident generates a pressure wave moving in the direction of the conservator.

Response: The liquid flow reaches a damper arranged in the liquid flow. If the flow rate exceeds the operating threshold of the damper, the latter moves in flow direction. Due to this movement a switch contact is actuated so that the transformer is disconnected.

Oil

Figure 6: Insulating liquid flow The upper and lower switching system form a functional unit in the single-float Buchholz relay. In case of a fault, the single-float Buchholz relay normally isolates the transformer immediately from the mains system.

7

3. Tests To each Buchholz relay a works-number is given mentioned in the test certificate. Furthermore the tests made with each Buchholz relay are documented in the test certificate.

- Dielectric strength test (AC 2000 V against casing) - Leakage test (25 min with 80o C warm Transformer oil at 0.25 MPa) - Functional test (damper setting, switching systems)

With each device we deliver in the agreed language: - operating instructions - test certificate.

Flow test

Functional and leakage test

The Buchholz relays are delivered in transport cardboards. In the cap nut of the test key there is a temporary lock for the switching system. This temporary lock has to be removed before the device is taken into operation.

DIN EN ISO 9001:2000 certificate


8

4. Type list 4.1. Single-float Buchholz relays with thread connection

Type code no. Works-design.

DIN-design.

Mode of connection

DN of pipe (mm)

d1

Flange dimensions

(mm) d2 d3 d4 d5 f

Device dimensions

(mm) l h1 h2

weight (kg)

Suited for transformer ratings of

01 (AG 25) (CG 25)

Connection thread G 11/2 “

25 - - - - 16 185 170 62 3.1 < 1600 KVA

4.1.1. Type 01

250300350

cm3

lf

170

d1

G11/2" 4.2. Single-float Buchholz relays with flange connection


DIN-design.

Mode of connection

DN of pipe (mm)

d1

Flange dimensions

(mm) d2 d3 d4 d5 f

Device dimensions

(mm) l h1 h2

weight (kg)


02 (AF 25/6) (-)

Flange 4-holes 25 100 75 60 12 12 185 195 62 3.6 <1600 KVA

03 (AF 25/10) (-)

Flange 4-holes 25 115 85 68 14 16 200 205 62 4.0 < 1600 KVA

25 (AF 25) (-)

Flange 4-holes 25 100 75 -- 12 10 160 195 62 3.3 < 1600 KVA

4.2.1. Type 02, 03, 25

350

250300

cm3

f d1d4

d3

d2

170

l

9

4.3. Single-float Buchholz relays – possible switching system designs As switching elements are used magnet contact tubes. There are normally-closed (NC), normally-open (NO) or change-over (CO) versions. For coding of the switching system version see point 7. ordering data, page 23. The magnet contact tube version is coded by the last figure of the ordering number.

...01 ...02 ...03 ...04 ...05 ...06 1 NO 1 NC 2 NO 2 NC 1 NO and 1 NC 1 CO

...07 ...08 ...09 2 CO 1 NO and 1 CO 1 NC and 1 CO

Explanation of symbols: not occupied Example: coding „ ...0 6 “

magnet contact tube version (1CO)

---

---

Graphical symbol withterminal marking Terminal assignment in terminal box

A plate showing the connection diagram and the terminal assignment is arranged inside the cover of each Buchholz relay delivered by EMB.

13

14

11

12

13

14 24

23 11

12 22

21 13

14 12

11

4

1

2

24

21

22 12

11

14

14

11

1224

23

14

11

1222

21

1 1 change-over (CO)

4

1

2

Note: The switching systems is shown in its normal position, i.e. with the Buchholz relay filled completely with insulating liquid corresponding to trouble-free operation of the device to be monitored.


10

4.4. Double-float Buchholz relays with thread connection


DIN-design.

Mode of connection

DN of pipe (mm)

d1

Flange dimensions

(mm) d2 d3 d4 d5 f

Device dimensions

(mm) l h1 h2

weight (kg)


04 (BG 25) (DG 25)


25 - - - - 16 185 235 90 4.2 < 5000 KVA

21 (BG 25 S) (-)


25 - - - - 16 185 235 90 3.6 < 5000 KVA

4.4.1. Type 04

l

f

170

d1

G11/2"

250300350

cm3

4.4.2. Type 21

d1l

f

150

250

300350

cm3

11

4.5. Double-float Buchholz relays with flange connection (round)


DIN-design. Mode of

connection DN

of pipe (mm)

d1

Flange dimensions

(mm) d2 d3 d4 d5 f

Device dimensions

(mm) l h1 h2

weight (kg)


05 (BF 25/6) (-)

Flange 4-holes 25 100 75 60 12 12 185 235 90 4.4 < 5000 KVA

06 (BF 25/10) (DR 25)

Flange 4-holes 25 115 85 68 14 18 200 235 90 4.8 <5000 KVA

23 (BF25/10S) (-)

Flange 4-holes 25 115 85 68 14 18 200 235 90 4.4 < 5000 KVA

07 (BF 50/6) (-)

Flange 4-holes 50 140 110 90 14 12 185 235 80 4.6 > 5000 KVA

< 10000 KVA

08 (BF 50/10) (DR 50)

Flange 4-holes 50 165 125 102 18 16 195 250 80 5.9 > 5000 KVA

< 10000 KVA

09 (BF 80/10) (-)

Flange 4-holes 80 200 160 138 18 15 195 265 80 6.2 > 10000 KVA

09-26. (BF80/10/8) (DR 80)

Flange 8-holes 80 200 160 138 18

M16 15 195 265 80 6.2 > 10000 KVA

24 (BF 80/6) (-)

Flange 4-holes 80 190 150 130 18 15 195 260 80 6.0 > 10000 KVA


12

4.5.1. Type 05, 06, 07, 08, 09, 24

4.5.2. Type 23

150

350

250300

cm3

fl

d1d4d3d2

4.5.3. Type 09-26.

350

250300

cm3

170

fl d1

d3d2

d4

M16

13

4.6. Double-float Buchholz relays with flange connection (square)


DIN-design.

Mode of connection

DN of pipe (mm)

d1

Flange dimensions

(mm) b d3 d4 d5 f

Device dimensions

(mm) l h1 h2

weight (kg)


10 (BF 80/Q) (DQ 80)

Flange square 4-holes

80 125 132 - 18 20 200 235 80 5.0 > 10000 KVA

4.6.1. Type 10

4.7. Double-float Buchholz relays with geometrical flange dimensions according to former Chinese norm


DIN-design.

Mode of connection

DN of pipe (mm)

d1

Flange dimensions

(mm) b d3 d4 d5 f

Device dimensions

(mm) l h1 h2

weight (kg)


63 (BC 80) (QJ-80)


80 160 160 - 18 15 185 245 80 5.0 > 10000 KVA

Suited for connecting to Chinese butterfly valves (square flange). Further types on request. 4.7.1. Type 63


14

4.8. Double-float Buchholz relays with geometrical flange dimensions according to French norm


Mode of connection

DN of pipe (mm)

d1

Flange dimensions

(mm) d2 d3 d5 f

Device dimensions

(mm) l h1 h2

weight (kg)


41 (NF 25)

Flange 4-holes 25 115 85 14 8 240 235 90 4.2 < 5000 KVA

42 (NF 50)

Flange 4-holes 50 165 125 18 11 240 250 80 5.1 >5000 KVA

< 10000 KVA

43 (NF 80)

Flange 4-holes 80 200 160 18 11 240 265 80 5.5 > 10000 KVA

4.8.1. Type 41, 42, 43

350

250300

cm3

f240

150

d1d3d2

15

4.9. Double-float Buchholz relays with geometrical flange dimensions according to British standard


Mode of connection

DN of pipe (mm) (inch)

d1

Flange dimensions (mm) (inch)

d2 d3 d5 f

Device dimensions (mm) (inch)

l h1 h2 h3

weight (kg)


51 (BS 25)


25 - -

72 2.83

M10M10 - 127

5 235 9.25

90 3.54

80 3.15 3.7 < 5000 KVA

52 (BS 50)

Flange 6-holes 50 140

5.51110 4.33

12 0.47

12 0.47

185 7.28

235 9.25

80 3.15

80 3.15 4.8 > 5000 KVA

< 10000 KVA

53 (BS 80)

Flange 6-holes 80 160

6.30130 5.12

12 0.47

13 0.51

185 7.28

240 9.45

80 3.15

80 3.15 5.0 > 10000 KVA

4.9.1. Type 51

4.9.2. Type 52, 53


16

4.10. Double-float Buchholz relays - possible switching system designs As switching elements are used magnet contact tubes. There are normally-closed (NC), normally-open (NO) or change-over (CO) versions. For coding of the switching system version see point 7. ordering data, page 23. The switching system version is coded by the last two figures of the ordering number.

...11 BS 25...11 ...12 ...13 ...14 ...15 Alarm Alarm Alarm Alarm Alarm Alarm 1 NO 1 NO 1 NO 1 NO 1 NO 1 NO

Disconnection Disconnection Disconnection Disconnection Disconnection Disconnection1 NO 1 NO 1 NC 2 NO 2 NC 1 NO and 1 NC

...16 ...17 ...19 ...21 ...22 Alarm Alarm Alarm Alarm Alarm 1 NO 1 NO 1 NO 1 NC 1 NC

Disconnection Disconnection Disconnection Disconnection Disconnection1 CO 2 CO 3 NO 1 NO 1 NC

13

14

13

14

13

14

13

14

13

14

13

14

23

24

11

12

23

24 34

33 11

12 22

21

23

24 12

1123

24

13

14

11

12

11

12

23

24

13

14

24

21

22 32

31

34

13

14

21

2214

11

12

23

24 34

33

44

43

17

...23 ...24 ...25 ...26 ...27 ...31 Alarm Alarm Alarm Alarm Alarm Alarm 1 NC 1 NC 1 NC 1 NC 1 NC 1 CO

Disconnection Disconnection Disconnection Disconnection Disconnection Disconnection2 NO 2 NC 1 NO and 1 NC 1 CO 2 CO 1 NO

...32 ...33 ...34 ...35 ...36 ...41 Alarm Alarm Alarm Alarm Alarm Alarm 1 CO 1 CO 1 CO 1 CO 1 CO 2 NO

Disconnection Disconnection Disconnection Disconnection Disconnection Disconnection1 NC 2 NO 2 NC 1 NO and 1 NC 1 CO 1 NO

13

14 24

23

24

21

22 24

21

22

13

14 12

11

14

11

12

33

34

14 34 3313

24

21

22 24

21

22 24

21

22

11

12

33

34 44

43

31

32 42

41

24

21

22

11

12

21

22

13

1424

21

22 32

31

34

14

11

12

11

12

11

12

11

12

13

14 24

23

21

22 32

31

13

14 22

21


18

...42 ...43 ...44 ...45 ...46 ...51 Alarm Alarm Alarm Alarm Alarm Alarm 2 NO 2 NO 2 NO 2 NO 2 NO 1 NC and 1 NO

Disconnection Disconnection Disconnection Disconnection Disconnection Disconnection1 NC 2 NO 2 NC 1 NO and 1 NC 1 CO 1 NO

...52 ...53 ...54 ...55 ...56 Alarm Alarm Alarm Alarm Alarm

1 NC and 1 NO 1 NC and 1 NO 1 NC and 1 NO 1 NC and 1 NO 1 NC and 1 NO

Disconnection Disconnection Disconnection Disconnection Disconnection 1 NC 2 NO 2 NC 1 NO and 1 NC 1 CO

11

12 14

13 21

22 24

23

23

24 22

21

14

11

12

11

12 14

13

11

12 14

13

11

12 14

13

21

22

23

24 34

33

21

22 32

31

13

14 24

23 23

24 34

33 11

12 14

13

33

34 12

11

14

11

12

23

24

13

14 24

23

13

14 24

23

13

14 24

23

11

12

33

34 44

43

11

12 22

21

19

Magnet contact tube version Explanation of symbols: Upper switching system - Alarm Example: coding „ ...1 2 “

Magnet contact tube version Lower switching system - Disconnection

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---

Graphical symbol with terminal marking Terminal assignment in terminal box

Note: The switching systems are shown in their normal position, i.e. with the Buchholz relay filled completely with insulating liquid corresponding to trouble-free operation of the device to be monitored. A plate showing the connection diagram and the terminal assignment is arranged inside the cover of each Buchholz relay delivered by EMB.

13

14

11

12

Alarm 1 NO

Disconnection 1 NC


20

5. Technical data The technical data listed in table 1 are valid for all Buchholz relays manufactured by EMB. More options are mentioned in table 2 on page 21. These additional special designs should be coded with the relevant identification number when ordering Buchholz relays. Table 1 Parameter

Data

Notes

Nominal voltage

AC 230 V DC 230 V

12 V to 250 V 12 V to 250 V

Nominal current AC 2 A DC 2 A

0.05 A to 2 A 0.05 A to 2 A

Contact voltage capacity AC 1000 V -- Insulation voltage capacity AC 2000 V Contact against casing Temperature range: - ambient temperature

- working range * temperature of the insulation liquid * viscosity of the insulation liquid

-40oC to +55o C -40o F to +131o F -40oC to +115oC -40o F to +239o F < 1100 mm2/s

Climate acc. to DIN EN 60068-2-78: 2002-09 Others on request

Shock resistance - Earthquake / Vibration - Impact

class 4M6 2g (peak value) frequency range 2Hz to 200 Hz 25g / shock duration 11 ms

-- --

Resistance to pressure 0.25 MPa -- Resistance to vacuum < 2.5 kPa -- Insensitivity to magnetic fields

25 mT --

Switching system: - Number of switching contacts per switching system - Switching contact - damper - Response time of damper Response of switching system in case of: - Gas accumulation - Flow of insulation liquid nominal diameter (DN) 25 mm nominal diameter (DN) 50 mm nominal diameter (DN) 80 mm

1 magnet contact tube hold by magnets < 0.1 s 200 cm3 to 300 cm3

1.00 m/s + 15% 1.00 m/s + 15% 1.00 m/s + 15% or 1.50 m/s + 15% or 2.00 m/s + 15%

More on request -- -- -- -- Others on request Please see also ordering data on page 23.

Cable gland M 20x1.5 Others on request Nominal installation position 1o ascending towards

expansion vessel 0o to 5o

Degree of protection IP 54 Others on request

21

6. Special designs Table 2 Explanation

Identif. no.

Insulation liquid silicone oil* 20 Insulation liquid based on esther * 21 Climatic version (extreme frigidal open-air climates below -40°C) * 34 Climatic version (sea climate) * 36 Degree of protection IP 56 38 Degree of protection IP 66 39 Special design approved by RWE, Germany 24 With premounted Harting connector 59 Casing colour RAL 7001 (silver-grey) * 41 Casing colour RAL 7012 (basalt-grey) * 42 Casing colour RAL 7022 (umber-grey) * 43 Casing colour RAL 7033 (cement-grey) * 44 Casing colour RAL 7038 (agate-grey) * 45 Casing colour RAL 7035 (light-grey) * 46 Casing colour RAL 7016 (anthracite-grey) * 47 Casing colour RAL 9002 (grey-white) * 48 Casing colour RAL 7032 (siliceous-grey) * 49 Upper switching system equipped with two magnet contact tubes 35 Lower switching system equipped with two magnet contact tubes 25 Upper and lower switching system each equipped with two magnet contact tubes 33 Lower switching system equipped with three magnet contact tubes 99 Testing of the switching systems by means of compressed-air and test key 32 Damper hold in response position 23 With oil drain plug (only double-float Buchholz relays) 28 Special request (on special agreement with customer) 29 NM series – Buchholz relay with analog measurement of the gas volume 60 * These identification numbers you can use also for ordering gas sampling device ZG 1.2. Casing colour: two-component polyurethane-based structural coating Attention: For constructional reasons the following special designs are not combined possible in the same device: identif.no. with identif. no. identif.no. with identif. no. 23 32 23 33 32 33 32 25 32 35

99 23 99 32 99 33 99 35


22

6.1. Explanations to identif. no. 32 The functional test using compressed air results from British Standard B.E.B.S. T2 of 1966. 6.2. Explanations to identif. no. 60 Further information:

“Technical information and operating instructions Transformer Protection Relay (Buchholz principle) Series NM”

For Buchholz relays of special design (identif. no. 32), the mechanical function of the two switching systems can be tested by means of test button (1), and the upper switching system (alarm) can be tested by pumping in air via the test valve (2) using a suitable test pump. Additionally, the switching system can be tested pneumatically. To this end, air is supplied via an air supply nipple (3) provided with a check valve.

Pneumatic test of the upper switching system (alarm) using compressed air: Air is introduced slowly into the Buchholz relay until the alarm contact is tripped when the upper float is lowered.

Pneumatic test of the lower switching system (disconnection) using compressed air: Through the air supply nipple and the pipe (4) air is applied suddenly to the damper. When the damper responds the disconnection contact is tripped. The response value of the damper is not checked.

After any test using air, bleed the Buchholz relay through the test valve (2).

The principal construction of the Buchholz relay with floats and damper as well as their electro-mechanical functions have been maintained. Buchholz relays of series NM are equipped additionally with a capacitive sensor (1). The sensor is installed in the cover of the Buchholz relay. The cover of the terminal box accommodates the electronic amplifier of the measuring unit. Sensor and amplifier are connected by a cable connector. The measured value is based on capacitance variation of the sensor caused by variation of the insulating liquid level in the Buchholz relay.

1

Analog measurement of the gas volume is possible between 50 cm3 and 300 cm3. Lower gas volumes cannot be measured reliably because of high inaccuracies. Measurements beyond this range are not necessary as in this case the upper switching system will respond. Besides, the construction of the Buchholz relay (larger gas volumes escape towards the expansion tank) does not allow such measurements. The operating point of the upper switching system (upper float) is a gas volume of 200-300 cm3.

4

2 1 3

0 5 10 15 200

50

100

150

200

250

300

350

Output signal of the messuring unit [mA]

Gas

vol

ume

in [c

m³]

Gas

vol

ume

in [c

m³]

23

7. Ordering data For placing orders, please, use the following key:

Ordering example: Buchholz relay 10-25.28.44.-0313 10

25284403

13

= double-float Buchholz relay type 10 (BF 80/Q) = lower switching system equipped with 2 magnet contact tubes = oil drain plug = colour RAL 7033 = damper setting of 1.50 m/s = contact setting of upper switching system - 1 NO-contact = contact setting of lower switching system - 2 NO-contacts

Double-float Buchholz relays Single-float Buchholz relays

Type code no. (see para. 4)

Special design (see table 2) (There are several identif. no. possible, always separated by a dot.)

Damper setting (m/s)

1= 0.65 2 = 1.00 3 = 1.50

Damper setting (m/s)

01 = 0.65 11 = 1.20 02 = 1.00 12 = 1.25 03 = 1.50 13 = 1.30 04 = 2.00 14 = 1.40 05 = 2.50 15 = 1.80 06 = 3.00

0 = not occupied

Contact setting of switching system

1 = one NO-contact 2 = one NC-contact 3 = two NO-contacts 4 = two NC-contacts 5 = one NO- and one NC-contact 6 = one CO-contact 7 = two CO-contacts 8 = one NO- and one CO-contact 9 = one NC- and one CO-contact

Contact setting of upper switching system (alarm)

1 = one NO-contact 2 = one NC-contact 3 = one CO-contact 4 = two NC-contacts 5 = one NO- and one NC-contact

Contact setting of lower switching system (disconnection)

1 = one NO-contact 2 = one NC-contact 3 = two NO-contacts 4 = two NC-contacts 5 = one NO- and one NC-contact 6 = one CO-contact 7 = two CO-contacts 9 = three NO-contacts

... 0 XXXX - .-XX XX

Type code no.(see para. 4)

Special design (see table 2) (There are several identif. no. possible, always separated by a dot.)

... X XXX - .-XX XX XX

For possible switching designs, please, see for single-float Buchholz relays on page 9 and for double-float Buchholz relays on page 16-18.

Important remark:NO = normally-open contact NC = normally-closed contact CO = change-over contact


24

8. Additional devices for Buchholz relays designation

description

ZG 1.2.

Gas sampling device The gas sampling device is mounted at the transformer and connected to the Buchholz relay by means of a pipe. It allows to sample the relay gas at normal operating level. The length of the tube (pipe) will be as requested by costumer. The device can be delivered with a lockable box Technical data:

Gas outlet opening: R 1/8“ others on request Oil outlet opening: R 1/8“ others on request Viscosity of the insulation liquid: <1100 mm²/s Temperature of the insulation liquid: -40°C to +115°C others on request Ambient temperature: -40°C to +55°C others on request Weight without tubing: 2.2 kg Tubing dimensions: Ø 6x1 copper tubing others on request Tubing length: < 15 m others on request

Ordering data:

type code for ZG 1.2.

special design (see table 2, page 21)(There are several identif. no. possible, always separated by a dot.)

0 = without box 1 = with box

tubing length in meter

Ordering example: Gas sampling device 90-34.44.-0-10,50m 90 = ZG 1.2. 34 = extreme frigidal open-air climates below -40°C 44 = colour RAL 7033 0 = without box 10,50m = tubing length of 10,50 m

Dimensions:

90 XX XX X XX,XXm....

25

designation

description

ZG 3.1. Gas testing device The gas testing device is used to test the gas accumulated in the Buchholz relay. It can be installed directly on the test valveof the Buchholz relay or on the gas outlet tap of the gas sampler. The Buchholz gas flows through two different chemical solutions and their colour reactions allows conclusions with regard to the type of fault. Testing by means of the gas testing device is no substitution for a chromatographic analysis. Ordering data: ZG 3.1.

ZG 4.1.

Reflux lock The device prevents that the insulation liquid gets into the Gas testing device. The device is arranged between the Buchholz relay or gas sampling device and gas testing device. Ordering data: ZG 4.1.

ZG 5.1. ZG 5.2.

Test pump The test pump (manual or pedal operated) serves to check the function of the upper switching system (warning) of the Buchholz relay by pumping in air. The test can be performed directly on the Buchholz relay. For that purpose, the test pump is connected to the test valve of the Buchholz relay. When the test is performed with the help of the gas sampling devise, the test pump is connected to the gas outlet tap of the gas sampling devices. Ordering data: ZG 5.1. ZG 5.2.

ZG 6.1. Oil sampling device

The oil sampling device is connected with the Buchholz relay via a pipe and serves to take oil samples from the Buchholz relay (suitable for Buchholz relays with oil drain plug). The pipe is supplied as requested by customer. Ordering data: ZG 6.1.


26

designation

description

BGS

Buchholzgas - Sampler The Buchholz gas sampler serves to safely take and Transport gas samples from the Buchholz relay or the gas sampling device. Its capacity is 100 ml. The gas sampled can be stored up to five days. Ordering data: BGS

BGT

Buchholzgas - Tester The Buchholz gas tester serves to measure the hydrogen concentration of the Buchholz gases. Measurement can be performed directly on site. For any other gas testing equipment, please, contact us. Ordering data: BGT

For any other information, please, ask for special reference material.

27

9. Further protection devices designation

description

ÜRF 25 ÜRF 25/10

Monitoring relay for tap changer The monitoring relay for the tap changers or oil flow relay is installed in the pipe between the tap changer head and the oil expansion vessel. It is tripped in the case of inadmissibly high oil flows towards the expansion vessel caused by tap changer faults. Pipe diameter: 25 mm (1“) Connection: flange

SG 25 SF 25 SF 25/10

Flow indicator The flow indicator is a protective relay monitoring circulating oil lubrication or circulating oil cooling of machines and equipment. It indicates faults of circulating oil systems or shuts down the machine or equipment, hence preventing damage. The flow indicator operates at a very low service pressure so that it can be also installed in an oil return pipe where the oil flow is ensured by a sloping oil pipe. Pipe diameter: 25 mm (1“) Connection: thread or flange

For any other information or data required for placing an order, please, ask for special catalogues.


28

Edition: Catalogue Buchholz relays 01/02/08/02 English Due to technical improvement of our products, the information contained in this brochure may be subjected to change without notice.

Bahnhofstraße 27/28 39179 Barleben / Germany Phone : +49 39203 790 Telefax : +49 39203 5330 Telefax : +49 39203 5450 e-mail: [email protected] Internet: http://www.emb-online.de

LET C.N.DATE ALTERATION

Phone: +46 8 447 54 50Fax: +46 8 604 68 10

MODELNO.

TITLE:

MODELNO.

Qualitrol and Qualitrol AKM are ISO 9001 system certifiedcompanies. Information subject to change without notice.

NOTICETHIS DRAWING IS THE PROPERTY OF QUALITROL/QUALITROL AKM AND IS LOANED ONLY ON THECONDITION THAT IT WILL BE USED TO FACILITATE THE PURPOSE FOR WHICH INTENDED AND NOTBE REPRODUCED, COPIED OR OTHERWISE DISPOSED OF, AND IS NOT TO BE USED IN WHOLEOR PART FOR FURNISHING INFORMATION RELATIVE TO THE MAKING OF DRAWINGS, PARTSAPPARATUS OR PARTS THEREOF, EXCEPT BY WRITTEN ORDER FROM QUALITROL/QUALITROL AKM.

Oil Temperature Indicator

AKM345-CS100617

AKM345-CS100617

AB Qualitrol AKMFlygfältsgatan 6CSE - 128 30 SkarpnäckSweden

YM L L CP AC O N®

AKM 3440615X-6.04 = 4 contactsX = Measuring range -10 to 150°C15 = Bulb type6.0 = Capillary lengthOutput = TD119-3Label = 46894 OTIProtection class = IP54Cable Entry = Adapter with M25 cable glandsCertificates = Calibration Cert,

SERIES 34

11 12 14 21 22 24 31 32 34 41 42 44 61 62 63

190

280

58 98 100

80

140

25

10

160Ø

14

118

BSP 1"

Bulb type 15 shownFor other types see TD129E

M25

LET C.N.DATE ALTERATION

Phone: +46 8 447 54 50Fax: +46 8 604 68 10

MODELNO.

TITLE:

MODELNO.


NOTICETHIS DRAWING IS THE PROPERTY OF QUALITROL/QUALITROL AKM AND IS LOANED ONLY ON THECONDITION THAT IT WILL BE USED TO FACILITATE THE PURPOSE FOR WHICH INTENDED AND NOTBE REPRODUCED, COPIED OR OTHERWISE DISPOSED OF, AND IS NOT TO BE USED IN WHOLEOR PART FOR FURNISHING INFORMATION RELATIVE TO THE MAKING OF DRAWINGS, PARTSAPPARATUS OR PARTS THEREOF, EXCEPT BY WRITTEN ORDER FROM QUALITROL/QUALITROL AKM.

Winding Temperature Indicator

AKM345-CS100616

AKM345-CS100616


YM L L CP AC O N®

AKM 3540615X-6.04 = 4 contactsX = Measuring range -10 to 150°C15 = Bulb type6.0 = Capillary lengthOutput = TD119-3Label = 46895 WTIProtection class = IP54Cable Entry = Adapter with M25 cable glandsCertificates = Calibration Cert,

SERIES 35

5 5 11 12 14 21 22 24 31 32 34 41 42 44 61 62 63

190

280

58 98 100

80

140

25

10

160Ø

14

118

BSP 1"

Bulb type 15 shownFor other types see TD129E

M25

• Accomplishthemostdemandingcontrolandalarmconfigurations

• ReducefailurecostswithreliableAKMbellowsoperation

• Minimizeinstallationcomplexitywithall-in-onedesign

• Simplifyoperationsbyusingonefamilyofthermometersforall

environmentalconditions

DescriptionCapillarybased,mechanical,remote

indicatingthermometer.Configurationsforoil

temperaturemeasurementandwindingtemperature

simulation.Featuresupto6adjustableswitchesfor

alarm,trip,andcoolingsystemfunctionsandcanbe

equippedwithvariouselectronicoutputsforSCADA

andremotemonitoringapplications.

ApplicationForoil(liquid)orsimulatedwinding

temperatureindicationwithintegratedfeatures

forcontroloralarmfunctions.Designedforuse

wherethepointofmeasurement(thewellor

pocket)isnoteasilyviewedbypersonneland

requiresseparateorremoteindication.

ProductSummary

AKMoti/wtiRemotemountthermometers

thenextgenerationthermometerfromthegloballeader

OTI_WTI_6page.indd 1 12/18/08 2:33:19 PM

AKMoti/wtiremotemountthermometers

thenextgenerationthermometer • Over 75 years of experience designing mechanical temperature fromthegloballeader measurement devices for transformers • Over 250,000 capillary type thermometers in service worldwide in all environmental conditions • Improved connection ease with a greater number of cable glands; 3xM25 style and 2xM20 style • Improved switching flexibility with up to 6 fully configurable switches • New and improved swing out case design allows for easy cable connection, switch configuration and testing without removal of the cover

Accomplishthemostdemanding • Up to 6 fully independent switches flexible enough for most controlandalarmconfigurations control and alarm schemes • Each switch can be specified by switch type, hysteresis range, and set point, without limitation of sequential set points • Standard switch rated for up to 15 Amps AC and up to 10 Amp DC, switches also available for higher VDC (magnetic blow out, M.B.O.), and switches for milliamp loads-- see technical specifications for more information • Various analog outputs also available (mA, Pt 100, and Cu 10) -- see technical specifications for more information • Each switch can be specified with adjustable hysteresis (5 to 25°C)

Reducefailurecostswithreliable • Non-pressurized bellows system avoids problems due to leakage AKMbellowsoperation • Integrated heating element in bellows for winding temperature indication eliminates extra cost and complexity of accessories to simulate the winding • AKM bellows system provides a 260° dial deflection (angle the pointer travels from minimum to maximum) making it easier to interpret temperature reading from a distance

Minimizeinstallationcomplexity • Single enclosure design minimizes need for additional accessories withall-in-onedesign such as matching units and heated wells commonly used by other mechanical temperature solutions • New hinged cover enables easy access to switch settings and connections during installation while shielding device from elements. Features all captive screws and can be completely removed, if necessary • Same installation footprint and mounting options as the previous generation AKM 345 • Improved wiring installation with addition of 2 cable glands (for a total of 5) and an increase in size to 3xM25 and 2xM20 versus the previous generation

Simplifyoperationsbyusingone • Wide range of options allow for standard use of one thermometer familyofthermometerfor series across a wide array of applications and operating conditions allenvironmentalconditions • Extreme temperature survivability with polar executions for use down to -60°C • Enclosures with IP55 or IP65 rating with numerous mounting configurations available • The most flexible switching capabilities available for implementation of any control and alarm configuration

Don’tseewhatyouneed? QUALITROLregularlycreatesmodelswithspecialcustomerrequirements. ContactyourlocalsalesrepresentativeorQUALITROLApplicationEngineer toreviewyourspecialrequirements.

?


thenextgenerationthermometerfromthegloballeaderinrugged temperaturemeasurement

AKMbellowstechnology

Integrated heating element in AKM measurement bellows simplifies winding temperature indication by eliminating the complexity of accessories to simulate the winding

Single enclosure design minimizes need for additional accessories such as matching units and heated wells commonly used by other mechanical temperature solutions

Compensation bellowsautomatically compensatesfor ambient temperature

oneFAMilyoFtheRMoMeteRFoRAllenviRonMentAlConDitionSEnclosures with IP55 or IP65 rating with numerous mounting configurations available including polar executions for use down to -60°C

MAxiMuMReADAbilitySystem provides a 260° dial deflection (angle the pointer travels fromminimum to maximum) making it easier to interpret temperaturereading from a distance

AKMbellowSteChnologyLow-pressure bellows systemavoids problems due to leakage for life long accuracy integRAteDwinDingSiMulAtionIntegrated heating element in AKM bellows for winding temperature indication eliminates extra cost and complexity of accessories tosimulate winding temperature

newCASeDeSignSwing out case design allows for easy terminal block connection, switch configuration and testing without removal of the cover

neweleCtRoniCoutPutKitSVarious analog outputs available (mA, Pt 100, and Cu 10) - user upgrade possible via rear access panel

new6SwitChCAPAbilityUp to 6 fully independentswitches flexible enough for themost demanding control andalarm schemes

iMPRoveDwiRingACCeSSImproved wiring installation casewith addition of 2 cable glands (fora total of 5) and an increase in sizeto 3xM25 and 2xM20 versus theprevious generation

CT

Probe

insideAKMoti/wti


Pockets/wells • Pockets and wells available to fit all probe types including IEC and ANSI standards

Remoteindicators • Digital and analog indicators available for remote display of temperature measurement • For use with 4-20 mA output option

Powersupply • For use with remote indicators and remote electronic outputs when 24 VDC is not available • Universal power supply • DIN rail mounting

Passthroughcapillarygland • For environmental isolation when capillary needs to pass through an enclosure such as the control cabinet

electronicoutputuserupgradekit • Add electronic output capability to units previously purchased without output • Upgrade possible through back access panel • Boards capable of mA, Pt100, Cu10, and voltage outputs for remote indication and integration with SCADA systems

optionsandaccessories

Email [email protected]

www.qualitrolcorp.com



teChniCAlSPeCiFiCAtionS

Materials Housing Die-cast aluminum, polyester powder coat finish

Capillary Copper or copper/nickel with stainless steel jacket

Lens UV stabilized polycarbonate (standard), glass optional

Mechanical Indication accuracy ±1.5% full-scale Standard measurement range 0 to 150°C (32°F to 302°F)

Probe types Standard: 14mm diameter x 156mm length Available: for wells per DIN 42554, ASA C57.12.00

Winding thermal image Internal winding simulation: TD50 (up to 2.2A CT max) or TD76 (up to 2.65A CT max) External winding simulation: (AKM 44678) up to 2A CT or (AKM 44674) up to 1,2A CT max, matching unit (AKM 44677) for up to 5A CT max

Mounting styles Stainless steel anti-vibration mount (standard), elastomeric seismic mount optional

Cover Swing up cover design, fully detachable, with all captive hardware

Cable glands 3 x M25, 2 x M20 electrical Number of switches 2 to 6 switches (independently specified types) Switch types VAC, VDC, M.B.O. (magnetic blow out for high DC)

Switching differential (hysteresis) 10° to 14°C for most dial ranges, optional adjustable differential from 5° to 25°C

Switching accuracy ± 3% full-scale

Optional remote outputs Current loops: 0 to 1 or 4 to 20mA Voltage: 1-5V and other ranges Resistive: Pt 100 or Cu 10 ohm environmental Enclosure IP55 (standard), IP65 optional

Dielectric isolation (hi pot) 2500 VAC at 50Hz, 60 seconds, all terminals to ground

Surge withstand capability IEEE C37.90.1 (TD111 output board only)

Ambient operating temperature -40°C to 70°C (-40°F to 158°F), polar execution available for -60°C to 70°C (-76°F to 158°F)

Storage temperature -50°C to 80°C (-58°F to 176°F)

Humidity 95% non-condensing relative humidity @ 95°C (203°F)

Vibration 50Hz/60Hz @ 0.1mm inch displacement, 3-axes

Shock 10 G’s half-sine, in three orthogonal planes




Standardmounting

universalmounting Siesmicmounting




QuAlitRol®FieldServicesTofurtherimprovereliability,QUALITROLprovidescomprehensiveeducationandon-sitecommissioningservices,main-tenancecontractsandtechnicalsupporttoallcustomersworldwide.Emergencyresponseisavailableonallproductsandservices.

AboutQuAlitRol®

QUALITROLCompanyLLCmanufacturessubstationandtransformermonitoringandprotectiondevicesusedbyelectricutilitiesandmanufacturingcompanies.Itisthegloballeaderinsalesandinstallationsoftransformerassetprotectionequipment,faultrecordersandfaultlocators.Establishedin1945,QUALITROLCompanyproducesthousandsofdiffer-enttypesofproductsondemand,eachcustomizedtocustomers’uniquerequirements.

©2008 QUALITROL® Company LLC, an ISO 9001 system certified company. All rights reserved. Information subject to change without notice. Alltrademarksarepropertiesoftheirrespectivecompanies,asnotedherein.AP-T02-03L-01E.


THIS DRAWING IS THE PROPERTY OF QUALITROL/QUALITROL AKMAND IS LOANED ONLY ON THE CONDITION THAT IT WILL BE USEDTO FACILITATE THE PURPOSE FOR WHICH IT WAS INTENDEDAND NOT BE REPRODUCED, COPIED OR OTHERWISE DISPOSED OF,AND IS NOT TO BE USED IN WHOLE OR PART FOR FURNISHINGINFORMATION RELATIVE TO THE MAKING OF DRAWINGS, PARTS,APPARATUS OR PARTS THEREOF, EXCEPT BY WRITTEN ORDERFROM QUALITROL/QUALITROL AKM.

NOTICE

SCALE

APP'D

CHECKSHEET

NO.DRAWING

DATE

DATELET ALTERATIONDRAWN

FINISH:C.N.

MATERIAL:

TITLE:

DO NOT SCALE PRINT DRAWINGNO. 44712-2-CS100618

44712-2-CS100618

bstaudmyer 4/7/2009

- 08-17-09 UPDATED WIRING PRELIMINARY



TOLERANCE acc. to ISO.Applicable where no tolerance is indicated.For machining: ISO 2768-1m.For threads: ISO 965 External threads 6g Internal threads 6H.Surface finish acc. to ISO 1302 Ra 6,3 Machined surfaces.Inspection acc. to IEC 410.

n250

470

60°

21°

60°

71° FLOAT ROD STOP

71° FLOAT ROD STOP

8

4

70

103

46

99

252

PROTECTION CLASS: IP55DIAL COLORS: BLACK CHARACTERS ON A SILVER BACK GROUND.CASE PAINTED, TERMINAL BOX, BEZEL-MUNSELL 2.5Y 8.5/4 (YELLOW)

13.00

49.50

n13(4)

n102 B.C.

n126

n36

29

12

11

14

22

21

24

WIRING DIAGRAM

MAX MIN

ON LOWERING LEVEL, 11 CLOSESON 14 AND OPENS ON 12 AT "MIN" ON RISING LEVEL,21 CLOSES ON 24 AND OPENS ON22 AT 0°C "MAX"

$oIo]lnallllBetriebsstätte BURSCHEIDBURSCHEID PLANT

Betriebsstätte HALTERNHALTERN PLANT

Ausgabe : Ol/12/O3Edition : Ol/12/O3

Griesberger Str. 43-4551399 BurscheidTef efax +49(0)21 7 4 630 | 5Telefon +49(0)217 4 60447

Annabergstr.6745721 HalternTelefax +49(0)2364 93 85-50Telefon +49(0)2364 9385-0

Trafo-Ventilator lTransformer-Fan : SK 470o Z wei p u n kt befestig u ng DOUBLE_FIXING

Drei pu n ktbefestig u n g TRIPLE-FIXING

-i l = sruFFtNG-cLANDS

Technische Daten gelten ffir220-2401380-415 Volt ( 50 Hz),208-265/360-460 Volt ( 60 Hz ), Gewicht: etwa 13 KgTechnical data are for 220-2401380-415 Volt ( 50 Hz ),208-2651360-460 Volt ( 60 Hz )Luftmenge freiblasend +- l0 o/o Toleranz

Quantity of air free outlet blowing +- 10 7o ToleranceSchalldruckpegel Lpa : Meßentfernung I m seitlich im reflexionsarmen Raum

Toleranz + 2 dB(A)Sound pressure level Lpa : Measuring distance I m sideways in anechoic room

Tolerance + 2 dB(A)I

l l P a l

f *145

5472

l lp F Drehzahl lpe Speed

lHz | | l /minl

Typ F Drehzahl Nennstrom Leistungsaufnahme Luftmenge

3,20/1,85 850 2,63

sK 470-6 50 ges \2110,70 260 1,61

fi'i. Speed Rated current Power input Air quaniity

I Hz I [ l/minl [A I Delta/Star IWatt I I m3/s. ]I - I l�

sK 470-4 50 1343 2,0811,20 525 2,25sK470-4 50 1343sK 470-4 60 1580

sK470-6 50 963

stat. Druckstat. pressure

LpaLpaldB(A)l

47,047,5

sK470-6 60

sK470-8 I 50

1118 l,4llo,82 330 1,87

sK 470-8 I 50 720 i 1,18i0,68 155 1,25sK 470-8 60 830 1,04/0,60 180 l,4l

sK 470-lo 50 I szo o,4olo,23 78 0,98sK 470-10 60 630 I 0,35/0,20 87 l,o0

sK 470-12 50 460 0,52/0,30 85 0,78

69,073,5

62r065,5

53,058,0

40,544rs

304l

1820

1015

Unteres Schul

| ,g,s

{+

TERMINALBOX

sK 470-12 60 525 0,4710,27 90 0,89

Naphthenics Product Data Sheet 20.12.2006

Nynas Transformer Oil-Nytro Libra

PROPERTY UNIT TEST METHOD GUARANTEED TYPICAL

DATA DATA

Min Max

1. Physical

Appearance IEC 60296 Clear, free from sediment Pass

Density, 20°C kg/dm3 ISO 12185 0,895 0,887

Viscosity, 40°C mm2/s ISO 3104 12,0 9,2

Viscosity, -30°C mm2/s ISO 3104 1800 1100

Pour Point °C ISO 3016 -40 -57

2. Chemical

Acidity mg KOH/g IEC 62021 0,01 <0,01

Corrosive sulphur DIN 51353 non corrosive non corrosive

Corrosive sulphur ASTM D1275B non corrosive non corrosive

Aromatic content % IEC 60590 11

Antioxidant, phenols Wt % IEC 60666 not detectable Pass

Water content mg/kg IEC 60814 30 <20

Furfural content mg/kg IEC 61198 0,1 <0,1

3. Electrical

Dielectric dissipation

factor (DDF) at 90°C IEC 60247 0,005 <0,001

Interfacial tension mN/m ISO 6295 40 49

Breakdown voltage

- Before treatment kV IEC 60156 30 40-60

- After treatment kV IEC 60296/60156 70 >70

4. Oxidation Stability

At 120°C, 164h IEC 61125 C

Total acidity mg KOH/g 1,2 0,40

Sludge Wt % 0,8 0,12

DDF/90 °C 0,5 0,050

5. Health, safety and environment

Flash Point, PM °C ISO 2719 135 148

DMSO extractable

compounds (PCA) Wt % IP 346 3 <3

PCB IEC 61619 not detectable Pass

Nytro Libra is an uninhibited transformer oil, meeting IEC 60296 (03) General specifications.

Naphthenics Safety Data Sheet 21.11.2006

SAFETY DATA SHEET

1.

Identification of the Substance/Preparation and the Company/Undertaking

Product Name: Nytro Libra

Product Type: Insulating Oil

Supplier: Nynäs Naphthenics AB

P. O. Box 10701

S-121 29 STOCKHOLM

Sweden

Telephone No: +46-8-602 1200 Fax: +46-8-81 62 02

Emergency Phone No: +46-8-33 70 43

2.

Composition/Information of Ingredients

Chemical Name: CAS-No.: EC-No.: Weight-% Symbols/Phrases

Hydrotreated Light Naphthenic Distillate

Hydrotreated Light Paraffinic Distillate

Solvent Refined Light Naphthenic Distillate

64742-53-6

64742-55-8

64741-97-5

265-156-6

265-158-7

65-85

15-35

<5

3. Hazards identification

Classification: No classification needed according to 67/548/EC and 1999/45/EC.

Human Health: Inhalation of vapours and/or mists might irritate respiratory tract.

Prolonged skin contact will cause defatting and possible irritation. Eye contact might cause irritation.

Environment: Slow biodegradation, the product will remain for long time in the environment. Risk for contamination

of earth, soil and water.

Physical and chemical hazard: At elevated temperatures flammable vapours and decomposition products will be released. Risk for

slippery floors if spilled out.

4.

First Aid Measures

General advice:

Inhalation: If inhalation of mists, fumes or vapours occur causing irritation, move to fresh air. If the symptoms

persist, obtain medical advice.

Skin contact: Remove immediately adhering matter and wash off with soap and plenty of water.

Eye contact: Rinse with plenty of water.

Ingestion: Clean mouth with water. Obtain medical advice if a large amount has been swallowed. Do not induce

vomiting.

5.

Fire-fighting Measures

Suitable extinguishing media: Extinguish preferably with dry chemical, carbon dioxide (CO2), or foam. Waterspray / mist may be

used.

Extinguishing media which must not be

used for safety reasons:

Water jet, unless used by authorised people.(Stain risk caused by combustion).

6.

Accidental Release Measures

Personal precautions: Suitable protection equipment should be used. In case of large spillage, the cleaning procedure should

be carried out using suitable protective clothing such as overall, gloves and boots. Remove

contaminated clothes as soon as possible.

Smaller spillage can be wiped up with paper cloths, using protective

gloves.

Environmental precautions: Prevent spills to enter and spread to drains, sewers, water courses, and soil. Contact local safety

authorities.

Methods for cleaning up: Absorb leaking product with sand, earth or other suitable inert material and collect. Disposal according

to section 13.

7.

Handling and Storage

Handling: Handle in accordance with good industrial hygiene and safety practices. If handled at elevated

temperatures or with high speed mechanical equipment, vapours or mists might be released and require a

well ventilated workplace.

Storage: Store at ambient temperature or with lowest necessary heating as handling requires.

8. Exposure Controls/Personal Protection

Control parameters: Exposure via the air and normal handling.

Chemical name: Mineral oil.

Short term value: 5 mg/m3. TLV-TWA 8 hours ACGIH (1998).

Engineering measures to reduce exposure: Mechanical ventilation and local exhaust will reduce exposure via the air. Use oil resistant material in

construction of handling equipment. Store under recommended conditions and if heated, temperature

control equipment should be used to avoid overheating.

Personal protection equipment:

- Respiratory protection: If the product is heated under manual handling, use suitable mask with filter A1P2 or A2P2. Handling in

automatic production lines, with exhaust or ventilation, will not require mask.

- Hand protection: Wear oil-resistant protective gloves if there is a risk of repeated skin contact. Suitable gloves

are neoprene, nitrile- or acrylnitrilebutadiene rubber, or PVC. Take notice of CEN 420:94, CEN 374:1-

3:94 and CEN 388:94.

- Eye protection: Wear safety goggles / safe shield if splashes may occur.

- Skin and body protection: Wear protective clothing if there is a risk of skin contact and change them frequently, or when

contaminated.

Hygienic measures: Act in accordance with good industrial hygiene and safety practice.

9. Physical and Chemical Properties

Form: Viscous liquid

Colour: <0.5, pale light yellow

Odour: Odourless / light petroleum

Melting point/pour point: -54°C

Initial boiling point: >250°C

Density 15°C: 886 kg/m3

Flash point, PM: 144°C

Auto ignition temp.: >250°C

Solubility in water: Non soluble

Solubility in organic solvents: Soluble

Decomposition temp.: >280°C

Vapour pressure at 100°C: 160 Pascal

DMSO extractible compounds according

to IP346:

< 3%

Calculated partition coefficient

n-octanol/water, log Pow:

>6

Viscosity at 40°C: 9,5 cSt

pH: non relevant

10.

Stability and Reactivity

Stability: Stable at normal conditions. Start to decompose at 280°C or higher.

Avoid: Excessive heating and highly oxidizing agents.

Hazardous decomposition products: Flammable gases which might also be noxious. With air present, there is a risk for auto ignition at

temperatures >270°C.

11.

Toxicological Information

Acute toxicity: Studies available indicate oral and dermal LD50 s of >5 000 mg/kg which is considered as low acute

toxicity.

Local effects:

- Inhalation: Prolonged and repeated inhalation of mist or vapour generated at elevated temperatures may irritate

respiratory tract.

- Oral: May cause nausea and eventually vomiting and diarrhoea.

- Skin contact: Prolonged or repeated exposure may lead to defatting of the skin and subsequent irritation.

- Eye contact: May cause redness and transient pain.

- Sensitisation: Studies indicate no evidence of sensitisation.

12. Ecological Information

Mobility: Low, due to low water solubility.

Persistence/degradability: The baseoil is not readily biodegradable. Substances may not meet criteria for ready biodegradability.

Studies indicate inherent, primary

biodegradation in the range of 20-60 % based on carbondioxide

evolution.

Bio-accumulation: Base oil has Log Pow in the range >3,9->6,0.

Log Pow is used for estimating the bioacccumulation in fish. A value >3,0 indicates possible

bioaccumulation. The size of the hydrocarbon molecules reduces the risk for bioaccumulation.

Ecotoxicity: Aquatic toxicity data on base oils indicate LC50 values of >1 000 mg/l, which is considered as low

toxicity. Chronic toxicity studies shows no long-term hazard to the aquatic environment.

13.

Disposal Considerations

Residues of unused product is not regarded as hazardous waste. Residues of products/packageing must not be disposed of in the environment, but

taken care of in accordance with local regulations.

Emptying instructions:

Barrels and equals: Turn the barrel upside down and tilt it approximately 10° until nondripping.

Nondripping is less than one drop / minute at 15 °C. The product viscosity depends on temperature, and it is important that the emptying not is done

at to low temperature. It can be necessary to scrape out highviscous products.

When the barrel is nondripping send it for recycling. If the residue volume is more than 1% send it for destruction of barrels. Empty barrels with < 1

% residue is not dangerous goods. Notify local regulations.

Bags for one way use/multiple use: Follow instructions given by the bag manufacturer. The last residues in the bag can be removed by placing the

hose over the remaining residues or by lifting the bag so the product can run towards the hose.

Bottom residues; roll up the bag towards the hose to press out the oil

One way bags of polyethylene can be recycled or disposed of by incineration. Notify local regulations.

14. Transport Information

The product is not classified as hazardous goods for land, sea and air transport according to the respective regulations (ADR, IMDG, IATA-DGR).

15. Regulatory Information

Classified according to European directives on classification of hazardous substances and preparations. Not classified as hazardous. No statutory

label required.

Listed in TSCA ( Toxic Substances Control Act) and EINECS.

16.

Other Information

The information for labelling and ecotoxicity is according to Concawe Report No. 95/59, 98/54, 05/6 and 01/54.

Classified according to the Dangerous Substance Directive, 67/548/EC up to the 29th ATP, the Dangerous Preparation Directive 1999/45/EC, and the

Safety Data Sheet Directive 2001/58/EC.

Component CAS no 64742-53-6 has DMSO extractible compounds according to IP 346 <3%.

Component CAS no 64742-55-8 has DMSO extractible compounds according to IP 346 <3%.

Component CAS no 64741-97-5 has DMSO extractible compounds according to IP 346 < 3%

Published: 2006-11-21

Nota L

The classification as a carcinogen need not apply if it can be shown that the substance contains less than 3 w%w

DMSO extract as measured by IP 346. This Nota applies only to certain complex oil-derived substances in Annex 1.

Nota N

The classification as a carcinogen need not apply if the full refining history is known and it can be shown that the substance from which it was

produced is not a carcinogen. This Nota applies only to certain complex oil-derived substances in Annex 1.

Documents

Desing Submittal of 30 MVA Transformers