SM6 -24 - CT Catalogue

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Current Transformers

SM6 24 cubicles

Feasibility rangeand referenced types

Catalogue 2004

Number: C019 rev. 1

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CONTENTS

CURRENT TRANSFORMER

RECOMMENDATIONS FOR THE USE OF TABLES AND TECHNICALS NOTES Page 3,4,5 and 6

PANEL TYPE CRM

REFERENCED TYPES ARJP1/N2 F Page 7ARJP2/N2 F Page 11

CONFIGURED TYPES ARJP1/N1 F and ARJP1/N2 F Page 8 and 9ARJP2/N1 F, ARJP2/N2 F and ARJP2/N3 F Page 12 and 13

PANEL TYPE QMC

REFERENCED TYPES ARJP1/N2 F Page 7

CONFIGURED TYPES ARJP1/N1 F and ARJP1/N2 F Page 8 and 9

PANEL TYPE DMV-A, DMV-D, IMC


CONFIGURED TYPES ARJP1/N1 F and ARJP1/N2 F Page 8 and 9ARJP2/N1 F, ARJP2/N2 F and ARJP2/N3 F Page 12 and 13

PANELS TYPE 1250A DM1-A, DM1-D, DM1-W, DM1-Z, GBC-A, GBC-B, DMV-A, DMV-D


CONFIGURED TYPES ARJP3/N1 F, ARJP3/N2 F and ARJP3/N3 F Page 16

PANELS TYPE DM1-A, DM1-D, DM1-W, DM2, GBC-A, GBC-B

REFERENCED TYPES ARM3/N2 F Page 18

CONFIGURED TYPES ARM3/N1 F and ARM3/N2 F Page 19

NOTE: N1, N2 and N3 MEAN THE NUMBER OF SECONDARIESF MEANS THAT THERE IS NOT BASE PLATE

pag. 3/20

CURRENT TRANSFORMERS

PREFERABLY USE the equipment selected and marked as REFERENCED

RECOMMENDATIONS FOR THE USE OF THEFEASIBILITY AND COMPUTATION SUPPORTS

_______________

¶ CHECK NEEDS AND NECESSARY INFORMATIONACCURATELY

· USE EQUIPMENT MARKED AS REFERENCE

¸ CHECK READLY AVAILABLE FEASIBILITY SECTIONS DIRECTLY

TO APPLY KEYS TO FEASIBILITY TABLES CORRECTLY, PLEASE SEE ON PAGE 4

¹ USE ALSO ELONET TO CHECK FEASIBILITY

º CONSULT US IF FEASIBILITY RANGE IS NOT

AVAILABLE OR FOR OTHERS CHARACTERISTICS

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KEYS TO THE VARIOUS TABLES TO DEFINE FEASIBILITY

1) Define Ipn rated primary currentUse primary values defined by standard (IEC):10, 12,5, 20, 25, 30, 40, 50, 60 and 75 A and their decimal multiples.

2) Define Ith rated short-time thermal current for 1 secondShort-circuit current usually lasts 1 second.Should this value be different (equal to a lenght "t"), calculate the following:

Ith (for 1 sec.) = Ith x √t

example: 25 kA for 3 sec. >> 25 x √3 = 43,3 kA for 1 sec.

3) Calculate coefficient "K"The above reperesents the key to the various tables

Ith for 1 sec.K = Ipn

example: Ipn = 100 A , Ith = 12,5 kA 1 sec. >> K = 12500 / 100 = 125

4) Finding position on the tableLocate column "K" and stop on the line corresponding to a value higher than K.

example: K calculate value = 125 >> ligne K = 150

5) Check feasibility A possible current transformer will feature the performances shown in the columns

identified by boxes :

For perotection secondary is true, only for choosing in the catalogue, the following formule:

VA x FL = constant

example: 10VA 5P10 ( VA x FL= 10 x 10= 100 ) >> 5VA 5P20 ( VA x FL= 5 x 20= 100 )

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TECHNICAL NOTES

Diagrams of the terminals markings according to IEC standard.

SINGLE RATIO

P1 P2

S1 S2

P1 P2

1S1 1S2 2S1 2S2

P1 P2

1S1 1S2 2S1 2S2 3S1 3S2n da dn

CT with ONE CT with TWO CT with THREE SECONDARY WINDING SECONDARY WINDINGS SECONDARY WINDINGS

F WARNING !The secondary open winding of a CT is dangereus!The unused secondary windings of a CT must be short-circuited.

pag. 6/20

HBurden values are different for each of the two ratios

F WARNING !The secondary open winding of a CT is dangereus!The unused secondary windings of a CT must be short-circuited.

Current transformer with DOUBLE RATIO through primary coulping.types ARM3

Burden values are the same for both ratios.

SERIAL PRIMARY COUPLING

LOW RATIO

PARALLEL PRIMARY COUPLING

HIGH RATIO

Current transformer with DOUBLE RATIO through connection on secondary.types ARJP1, ARJP2, ARJP3

CT with ONE SECONDARY WINDING CT with TWO SECONDARY WINDINGS

S1-S2 LOW RATIO 1S1-1S2 2S1- 2S2 LOW RATIOS1-S3 HIGH RATIO 1S1-1S3 2S1- 2S3 HIGH RATIO

P1 C1 C2 P2

P1 C1 C2 P2

P1 P2

1S1 1S2 1S3 2S1 2S2 2S3

P1 P2

S1 S2 S3

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For others characteristics see next page.

REFERENCED CURRENT TRANSFORMERS

Type ARJP1/N2 F

Panel type CRM - QMC

Dimensions Drawing n° H 103441

Characteristics Standard reference IEC 60044-1Rated highest voltage : 24 kVRated continous thermal current 1,2 x InFrequency 50 and 60 Hz

CTs type ARJP1/N2F Reference Ratio Short-time current 1st secondary 2nd secondary

number I th t(A/A) (kA) (s)

51238639F0 10/5-5 1,2 1 15 VA cl. 0,5 Fs<10 2,5 VA 5P20

51238640F0 20/5-5 2,4 1 15 VA cl. 0,5 Fs<10 2,5 VA 5P20

51238641F0 30/5-5 3,6 1 15 VA cl. 0,5 Fs<10 2,5 VA 5P20

51238643F0 50/5-5 6 1 15 VA cl. 0,5 Fs<10 2,5 VA 5P20

51238644F0 75/5-5 10 1 15 VA cl. 0,5 Fs<10 2,5 VA 5P20

51238645F0 100/5-5 10 1 15 VA cl. 0,5 Fs<10 2,5 VA 5P20

51238646F0 150/5-5 10 1 15 VA cl. 0,5 Fs<10 2,5 VA 5P20

51238647F0 200/5-5 10 1 15 VA cl. 0,5 Fs<10 2,5 VA 5P20

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For others characteristics please contact us.

CONFIGURED CURRENT TRANSFORMER

Type ARJP1/N1 F - ARJP1/N2 FSingle Primary Ratio SR

Panels type CRM, DMV-A, DMV-D, IMC, QMC


Characteristics Standard reference IEC 60044-1Rated highest voltage : 7,2 - 12 - 17,5 - 24 KVRated continous thermal current 1,2 x InFrequency 50 or 60 HzRated secondary current standard 5 or 1 A.

Table of options:

N° of secondaries for CT 1 2STANDARD TYPE ARJP1/N1 F ARJP1/N2 F

1st measure secondary

Classe 0,5 Fs = 10VA

alternatively 5 7,5 10 15 20 20 30 30 30 30 30

"K" Ipn measure secondary protection secondary 2nd protection secondary

K=Ith/Ipn Rated primary Cl. 0,5 Fs=10 Cl. 5P Fl=10 Cl. 5P Fl=10 Ith max current [A] VA VA VA

25 kA for 1s SR 7,5 10 15 20 30 50 5 7,5 10 15 20 30 50 5 5 5 7,5 5 10 10 15 20 30 50

100 10 to 800

150 10 to 150

200 10 to 100

250 10 to 100

300 10 to 75

400 10 to 50

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Type ARJP1/N1 FDouble Primary Ratio DR

Panels type CRM, DMV-A, DMV-D, IMC, QMC


Characteristics Standard reference IEC 60044-1Rated highest voltage : 7,2 - 12 - 17,5 - 24 KVRated continous thermal current 1,2 x InFrequency 50 or 60 HzRated secondary current standard 5 or 1 A.Double primary ratio through connection to secondary.

Value “K=Ith/Ipn” must de fixed in comparison with the smaller rated primary current ratio .Values of outputs are gived for the smaller ratio, for the high ratio they are the double.

Table of options:N° o f secondar ies fo r CT

S T A N D A R D T Y P E

" K " I p n measure secondary

K=Ith/ Ipn Rated Class 0,5

pr imary Fs = 10

I th max current [A] VA

25 kA for 1s D R 7 ,5 10 15 2 0 3 0 5 0 5 7,5 1 0 1 5 2 0 30 50

100 10-20 to 400 -800

150 10-20 to 150 -300

200 10-20 to 100 -200

250 10-20 to 100 -200

300 10-20 to 75-150

400 10-20 to 50-100

alternatively

ARJP1 /N1 F1

protect ion secondaryClass 5P

F l = 1 0VA

pag. 11/20For others characteristics see next page.

Panels type DMV-A, DMV-D, IMC

CTs type ARJP2/N2F

Reference Ratio Short-time current 1st secondary 2nd secondarynumber I th t

(A/A) (kA) (s)

51238223F0 50 / 5-5 25 1 10VA cl.0,5 Fs10 2,5VA 5P20


Type ARJP2/N2 F



Panel type CRM

CTs type ARJP2/N2F


(A/A) (kA) (s)

51238223F0 50 / 5-5 25 1 10VA cl.0,5 Fs10 2,5VA 5P20

51238224F0 100 / 5-5 25 1 15VA cl.0,5 Fs10 2,5VA 5P20

51238225F0 200 / 5-5 25 1 15VA cl.0,5 Fs10 5VA 5P20

51238226F0 400 / 5-5 25 1 15VA cl.0,5 Fs10 5VA 5P20

3730519 600 / 5-5 25 1 20VA cl.0,5 Fs<10 7,5VA 5P20

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Type ARJP2/N1 F - ARJP2/N2 F - ARJP2/N3 F Single Primary Ratio SR

Panels type CRM, DMV-A, DMV-D, IMC


Characteristics Standard reference IEC 60044-1Rated highest voltage : 7,2 - 12 - 17,5 - 24 KVRated continous thermal current 1,2 x InFrequency 50 or 60 HzRated secondary current standard 5 or 1 A.

Table of options:

n° of secondaries for CT 1 2 3STANDARD TYPE ARJP2/N1 F ARJP2/N2 F ARJP2/N3 F

1st measure sec.Class 0,5Fs = 10

VA

5 10 15 20 30

1st measure secondary 2nd protection sec.Class 0,5 Class 5PFs = 10 Fl = 10

VA VA

alternatively 5 7,5 10 15 20 20 30 30 30 30 30 5 5 7,5 10 15

"K" Ipn measure secondary protection secondary 2nd protection secondary 3rd protection sec.

K=Ith/Ipn Rated Class 0,5 Class 5P Class 5P Class 5P

primary Fs = 10 Fl = 10 FI = 10 Fl = 15

Ith max current [A] VA VA VA VA

25 kA for 1sec. SR 7,5 10 15 20 30 50 5 7,5 10 15 20 30 50 5 5 5 7,5 5 10 10 15 20 30 50 5 5 7,5 10 15

100 10 to 800

150 10 to 300200 10 to 250

250 10 to 200

300 10 to 150

400 10 to 100500 10 to 100

Switch to smaller type ARJP1

pag. 13/20For others characteristics please contact us.


Type ARJP2/N1 F - ARJP2/N2 F Double Primary Ratio DR

Panels type CRM, DMV-A, DMV-D, IMC



Value “K=Ith/Ipn” must de fixed in comparison with the smaller rated primary current ratio .Values of outputs are gived for the smaller ratio, for the high ratio they are the double.

Table of options:

N ° o f s e c o n d a r i e s f o r C T 1 2S T A N D A R D T Y P E A R J P 2 / N 1 F A R J P 2 / N 2 F

1 s t m e a s u r e s e c o n d a r y

C l . 0 , 5 F s = 1 0V A

al ternat ive ly 5 7 ,5 1 0 1 5 2 0 2 0 3 0 3 0 3 0 3 0 3 0" K " I p n m e a s u r e s e c o n d a r y p r o t e c t i o n s e c o n d a r y 2 n d p r o t e c t i o n s e c o n d a r y

K= I th / Ipn R a t e d p r i m a r y C l . 0 , 5 F s = 1 0 C l . 5 P F l = 1 0 C l . 5 P F l = 1 0 I t h m a x c u r r e n t [ A ] V A VA V A

2 5 k A f o r 1 s D R 7,5 1 0 1 5 2 0 3 0 5 0 5 7,5 1 0 1 5 2 0 3 0 5 0 5 5 5 7 ,5 5 1 0 1 0 1 5 2 0 3 0 5 0

1 0 0 1 0 - 2 0 t o 4 0 0 - 8 0 0

1 5 0 1 0 - 2 0 t o 1 5 0 - 3 0 0

2 0 0 1 0 - 2 0 t o 1 0 0 - 2 0 0

2 5 0 1 0 - 2 0 t o 1 0 0 - 2 0 0

3 0 0 1 0 - 2 0 t o 7 5 - 1 5 0

4 0 0 1 0 - 2 0 t o 5 0 - 1 0 0

5 0 0 1 0 - 2 0 t o 5 0 - 1 0 0

S w i t c h t o t h e s m a l l e r t y p e A R J P 1



Type ARJP3/N2 F

Panels type DM1-A 1250A, DM1-D 1250A, DM1-W 1250A, DM1-Z 1250A,GBC-A 1250A, GBC-B 1250A, DMV-A 1250A, DMV-D 1250A



CTs type ARJP3/N2F


(A/A) (kA) (s)

3730521 1000 / 5-5 25 1 30 VA cl. 0,5 Fs<10 10 VA 5P20

3730522 1250 / 5-5 25 1 30 VA cl. 0,5 Fs<10 10 VA 5P20

3730525 1000 / 1-1 25 1 30 VA cl. 0,5 Fs<10 10 VA 5P20

3730526 1250 / 1-1 25 1 30 VA cl. 0,5 Fs<10 10 VA 5P20

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Type ARJP3/N1 F - ARJP3/N2 F - ARJP3/N3 FSingle and Double Primary Ratio

Panels type DM1-A 1250A, DM1-D 1250A, DM1-W 1250A, DM1-Z 1250A,GBC-A 1250A, GBC-B 1250A, DMV-A 1250A, DMV-D 1250A



Values of outputs are gived for the smaller ratio, for the high ratio they are the double.

Table of options:


N° of secondaries for CT 1 2 3STANDARD TYPE ARJP3/N1 F ARJP3/N2 F ARJP3/N3 F

1st measure sec.Cl. 0,5 Fs=10

VA

5 10 15 20 30

1st measure secondary 2nd protection sec.Class 0,5 Cl. 5P Fl=10

VA VA

alternatively 5 7,5 10 15 20 20 30 30 30 30 30 5 5 7,5 10 15

Ipn measure secondary protection secondary 2nd protection secondary 3rd protection sec.

Rated primary Cl. 0,5 Fs=10 Cl. 5P Fl=10 Cl. 5P Fl=10 Cl. 5P Fl=15

current [A] VA VA VA VA

SR DR 7,5 10 15 20 30 50 5 7,5 10 15 20 30 50 5 5 5 7,5 5 10 10 15 20 30 50 5 5 7,5 10 15

750

800

1000

1200

1250

400-800

500-1000

600-1200


CTs type ARM3/N2F Reference Ratio Short-time current 1st secondary 2nd secondary

number I th t

(A/A) (kA) (s)

51303122F0 40-20 / 5-1 12,5 0,8 7,5VA 0,5s Fs<10 1VA 10P30

51303123F0 100-50 / 5-1 12,5 0,8 7,5VA 0,5s Fs<10 1VA 10P30

51303124F0 200-100 / 5-1 12,5 1 7,5VA 0,5s Fs<10 1VA 10P30

51303125F0 400-200 / 5-1 12,5 1 7,5VA 0,5s Fs<10 1VA 10P30

3731090 10-20 / 5-5 5 1 7,5 VA cl. 0,5 Fs<10 5 VA 5P10

3731092 15-30 / 5-5 8 1 7,5 VA cl. 0,5 Fs<10 5 VA 5P10

3731094 20-40 / 5-5 12,5 0,8 7,5 VA cl. 0,5 Fs<10 5 VA 5P10

3731096 25-50 / 5-5 12,5 1 7,5 VA cl. 0,5 Fs<10 5 VA 5P10

3731097 25-50 / 5-5 12,5 0,8 7,5 VA cl. 0,5 Fs<10 5 VA 5P10

3731098 50-100 / 5-5 21 1 7,5 VA cl. 0,5 Fs<10 5 VA 5P15

3731099 50-100 / 5-5 14,5 1 30 VA cl. 0,5 Fs<10 5 VA 5P15 - 7,5 VA 5P10

3731100 75-150 / 5-5 25 1 7,5 VA cl. 0,5 Fs<10 5 VA 5P15

3731101 75-150 / 5-5 16 1 30 VA cl. 0,5 Fs<10 5 VA 5P15 - 7,5 VA 5P10

25 120 2

3731103 100-200 / 5-5 16 1 30 VA cl. 0,5 Fs<10 7,5 VA 5P15 - 15 VA 5P10

25 120 2

3731105 200-400 / 5-5 25 1 30 VA cl. 0,5 Fs<10 7,5 VA 5P15 - 15 VA 5P10

25 120 2

3730426 300-600 / 5-5 25 1 30 VA cl. 0,5 Fs<10 7,5 VA 5P15 - 15 VA 5P10

3731708 300-600 / 5-5 7,5 VA cl. 0,5 Fs<10 5 VA 5P15

3731104 200-400 / 5-5 7,5 VA cl. 0,5 Fs<10 5 VA 5P15

3731102 100-200 / 5-5 7,5 VA cl. 0,5 Fs<10 5 VA 5P15


Type ARM3/N2 F

Panel type DM1-A, DM1-D, DM1-W, DM2, GBC-A, GBC-B


Characteristics Standard reference IEC 60044-1Rated highest voltage : 24 kVRated continous thermal current 1,2 x InFrequency 50 and 60 HzDouble primary ratio through primary coupling.

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Type ARM3/N1 F - ARM3/N2 FSingle and Double Primary Ratio

Panels type DM1-A, DM1-D, DM1-W, DM2, GBC-A, GBC-B


Characteristics Standard reference IEC 60044-1Rated highest voltage : 7,2 - 12 - 17,5 - 24 KVRated continous thermal current 1,2 x InFrequency 50 or 60 HzRated secondary current standard 5 or 1 ADouble primary ratio through primary coupling.

Value “K=Ith/Ipn” must de fixed in comparison with the smaller rated primary current ratio .

Table of options:

N° of secondaries for CT 1 2STANDARD TYPE ARM3/N1 F ARM3/N2 F

1st measure secondary

Cl 0,5 Fs=10VA

alternatively 5 7,5 10 15 20 20 30 30 30 30 30"K" Ipn measure secondary protection secondary 2nd protection secondary

K=Ith/Ipn Rated primary Cl 0,5 Fs=10 Cl 5P Fl=10 Cl 5P Fl=10

Ith max current [A] VA VA VA

25 kA for 1s SR DR 7,5 10 15 20 30 50 5 7,5 10 15 20 30 50 5 5 5 7,5 5 10 10 15 20 30 50

100 10 to 800 10-20 to 400-800

150 10 to 300 10-20 to 300-600

200 10 to 300 10-20 to 300-600

250 10 to 200 10-20 to 200-400

300 10 to 150 10-20 to 150-300

400 10 to 100 10-20 to 100-200

500 10 to 50 10-20 to 100-200

Documents

SM6 -24 - CT Catalogue