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M 6 S
CREWS
ONAL MOUNT
CKET
�B
L
Optional Mount
Bracket
Ø B in mm
Ø A in mm
L
M
CG
.ID/3
8/C
Ts/
RP
T/0
3/06
At the cuttin
g edge of
current cont
rol
CURRENT
TRANSFORMERS
CG International
International Operations of
Crompton Greaves Limited
‘Jagruti’, Kanjurmarg (East),
Mumbai (Bombay) - 400 042. (INDIA)
Telephones : +91-22-5555 8000
Direct : +91-22-5555 8954
Fax : +91-22-2577 4066
E mail : cgi@cgl.co.in
Home Page: www.cglonline.com
Series CGCT, enclosedDIN rail panel mountingmeasurement CTs.
Series CGECT, enclosedpanel mountingmeasurements CTs.
Series CGCTP, tapewound, panel mountingmeasurement CTs.
Series CGPRO, tapewound, panel mountingprotection CTs.
Series IC, resin cast,
panel mountingmeasurement andprotection CTs.
INDEX
Contents Page
Series CGCT, 1EnclosedMeasurement CTs
Series CGECT, 5EnclosedMeasurement CTs
Series CGCTP, 7Tape WoundMeasurement CTs
Series CGPRO, 8Tape WoundProtection CTs
Series IC, 9Resin Cast Measurementand Protection CTs
The Current Transformers(CTs) are designed for easeof mounting and access, aswell as to minimise spacerequirements. The standardframes, which includeoverlapping current ratios,permit selection for anycable or busbar system.Enclosed, Tape Wound andResin Cast MeasurementCTs and Tape Wound andResin Cast Protection CTsfor DIN Rail, Busbar andBracket Mounting areoffered but CTs beyond therange specified in thiscatalogue, also can beoffered on request.
SERIES CGCT,ENCLOSED
MEASUREMENT CTS
MEASUREMENT CTS
Measurement CTs are required totransform the primary current, atvarious classes of accuracy, asspecified by the class designation,over a current range from 5% to120% of its rated primary current.The design of this type of CTrequires the inclusion of a core andwinding which will, when connectedto its rated burden, perform withinthe limits of error as indicated bythe standards specifications.It is an advantage for ameasurement CT to saturate abovethis range, which provides aprotection against damage toinstrument by limiting the second-ary current, when surge current orfaults appear in the primary circuit.
Typical Magnetising Characteristics of CTs indicating thecomparison between Measurement & Protection CTs.
Clips are provided for footmounting as standard for allsizes.Busbar Clamps are providedas standard accessories fromsize CGCT-3 onwards.
APPLICATIONS
Series CGCT CTs measurecurrents from 30 Amps to 4000Amps. Their accuracy allowsoperation within the range of 5%to 120% of the primary current.This accuracy depends on theload connected to the secondaryof the CTs, which includes boththe impedance of the connectedmeasuring instruments andconnecting cables. The CTs can bemounted in direct contact with thebusbars operating at a maximumtemperature of 105°C. They canwithstand, without damage, thehigh temperatures that can occurin enclosed switchboards.
SPECIFICATIONS
Designed to comply with BS7626, 1993 and IEC 44, 1996(earlier IEC 185, 1987)Can operate at temperatureranges from - 20 Deg C upto +70 Deg C ambient.Di-electric strength of 2.50 kVfor one minute.Nominal frequency 50/60 Hz.Rated voltage 660V AC max.Short circuit thermal current(Ith) - 60 times rated primarycurrent for one sec.Rated dynamic current (I Dyn) -2.5 Times IthDegree of protection IP40
EXCITING CURRENT
10 % INCREMENTProtection CT
50% INCREMENTKNEEPOINT
Measurement CT
SE
CO
ND
AR
Y V
OLT
AG
E
manufacturers allowing the CT tobe mounted at any location withease. The DIN rail mounting andother mounting and cabling featuresmake the CGCTs the most versatileCurrent Transformer range.
FEATURES
Series CGCT CTs are certifiedfor the following marks.
Enclosure is made of highImpact flame resistant ABS.
Terminal cover is clear acrylicfor easy visibility. Also sealingarrangement is provided as astandard feature in all sizes.
Terminals are shroudedwhen cover is removed andknockouts are provided inthe shroud to allow selectionof cable entry direction.
Pleasing blue colour.
Cost effective, economicaldesign.
Primary currents from 30 Ampsto 4000 Amps. Secondarycurrents 1 Amp and 5 Amps
Available in six frame sizes -CGCT-1 to CGCT-6 andaccuracy classes of 0.5, 1, 3and 5.
Option of TerminalConnections - Direct, CableClamp or Cable lug.
Option of mountingarrangements - DIN railmounting on DIN35 rail, onfeet, on bottom and sides,panel and bulkhead.
SERIES CGCT, ENCLOSEDCURRENT TRANSFORMERS
The Series CGCT CTs, i.e. CGCT-1, CGCT-2 and CGCT-3, from 30/5Amps to 1200/5 Amps are providedwith unique feature of DIN railmounting facility at the base of theCTs for mounting on DIN35 rails.This feature is a boon to panel
1
A
MAXIMUM TYPICALBUSBAR SIZE BUSBAR
MMS RATING, AMPS
CGCT - 1
CGCT - 4 CGCT - 6
CGCT - 2
CGCT - 5
CGCT - 3
39.5
5678
95
74
Ø22
39.5
5678
95
74
Ø33
74
162
65.5
115.5
127
Ø81
134
82
32
81.5
180
81
105
45
147
Ø82
150
136
21
191
127.5
57
Ø126
205
99
195
180
84.5
85.5 12
0
97
1250. 5
Ø48
51
All dimensions are in mm.
SERIES CGCT,ENCLOSED
MEASUREMENT CTS
B CHORIZONTAL VERTICAL
OVERLAPPING CTS
CGCT - 5 1200 - 2500
CURRENTRANGE, AMPS
TYPE
ALTERNATEARRANGEMENTS OFCTS AND BUSBARS
BUSBAR MOUNTING DATA
MINIMUM PHASE CENTRES, MM
SIDE BY SIDECTS
CGCT - 1 30 - 150 6.3 × 20 300 66 45 38
CGCT - 2 75 - 400 6.3 × 31.5 450 66 50 38
CGCT - 3 300 - 1200 11.5 × 50 1200 99 75 57
CGCT - 4 600 - 2000 18.9 × 80 2300 127 105 78
25.2 × 80 2700 150 115 96
12.6 × 100 1900 150 126 88
CGCT - 6 1600 - 4000 31.5 × 125 4100 195 161 128
DIMENSIONS
A A B C
2
CG
CT
- 1
CG
CT
- 2
CG
CT
- 3
CG
CT
- 4
CG
CT
- 5
CG
CT
- 6
SERIES CGCT,ENCLOSED
MEASUREMENT CTS
NOTE: The shaded squares indicate the range upto which the CTs can perform.
All dimensions are in mm
RATIO CLASS 5 CLASS 3 CLASS 1
VA 2 3 4 5 7.5 2 3 4 5 7.5 3 5
30/5 A
40/5 A
50/5 A
60/5 A
75/5 A
100/5 A
150/5A
RATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5
VA 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15 2 3 5 7.5 10 15
75/5 A
100/5 A
150/5 A
200/5 A
300/5 A
400/5 A
RATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5
VA 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15
300/5 A
400/5 A
500/5 A
600/5 A
800/5 A
1000/5 A
1200/5 A
RATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5
VA 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15
600/5 A
800/5 A
1000/5 A
1200/5 A
1600/5 A
2000/5 A
RATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5VA 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15
1200/5 A
1600/5 A
2000/5 A
2500/5 A
RATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5
VA 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15
1600/5 A
2000/5 A
2500/5 A
3000/5 A
4000/5 A
3
S
71 6042
6
CONNECTIONS ANDMOUNTING VARIATIONS
TYPE S
CGCT - 1 53 mm
CGCT - 2 53 mm
CGCT - 3 62 mm
CGCT - 4 74 mm
CGCT - 5 92 mm
CGCT - 6 130 mm
All dimensions are in mm.
CLEAR ACRYLIC COVER HELD SECURELYBY SCREW, CAN BE SEALED
BULK HEAD MOUNTING WITHCAPTIVE NUTS (SCREWS PROVIDED)
FOOT MOUNTING USING CLIPS
MOUNTING FEET
DIN RAIL MOUNTING ARRANGEMENT
BUSBAR CLAMP ARRANGEMENT(CLAMPS PROVIDED)
SERIES CGCT,ENCLOSED
MEASUREMENT CTS
CABLE TERMINATIONWITH CABLE LUG
VA BURDEN GUIDE
Short scale moving iron ammeter 0.5240° scale moving iron ammeter 0.75-1.5Watt/VAR/Phase Angle meter 1-1.25Recording ammeter 2-4Maximum Demand Indicator 2-3.5Combined MDI & ML ammeter 3-3.5
Electronic Control System. 5-10
APPLICATION CLASS OF ACCURACY
a) General tariff metering 0.5
b) Nonrevenue measurements including power and energy 1
c) General measurements 1-3
d) Approximate measurements 5
SELECTION OF CLASSOF ACCURACY OF
MEASUREMENT CTS
4
65
13
152126 76
100
657689
3141
CLAMP
133
112
4 HOLES Ø 10
152
150
28
25
32
41 64 81
133
CLAMP
All dimensions are in mm.
SERIES CGECT,ENCLOSED
MEASUREMENT CTS
CGECT-1
Width : 35 mm
CGECT-2
Width : 40 mm
CGECT-3
Width : 46 mm
GENERAL
Series CGCT offers followingfeatures:1. Tamper proof terminal cover.2. Bus bar clamp.3. Open circuit protection feature.4. Multiple mounting options.5. Multiple clamping options.6. Carry CE mark.The CTs cover a range from 50AMP to 2500 AMP and with 1 AMPor 5 AMP options on the secondary,with accuracies class of 0.5, 1, 3and 5 for a wide range of VAratings.
SPECIFICATIONS
Conform to BS 7626, 1993 andIEC 44, 1996 (earlier IEC 185,1987)
Primary current 50 A to 2500 A,Secondary current 5 A or 1A.Maximum voltage 660V. Testvoltage 2.50kV, 50Hz for 1minute. Thermal current 60 In,Dynamic current 150 In
Flame resistant, high impactABS plastic case, sealableterminal covers, Bulk headmounting bracket and busbarclamps provided as standardaccessories. Available from 50/5A to 2500/5A in 3 sizes
RANGE
CGECT - 1
Suitable for bus bars 31.5mm ×6.30mm or 32mm dia range from50/5A to 150/5A.
CGECT - 2
Suitable for bus bars 40mm ×12.60mm or 32mm dia. and rangefrom 75/5A to 400/5A.
CGECT - 3
Suitable for bus bars 80 mm ×25.2 mm or 47mm dia. and rangefrom 300/5A to 2500/5A.
For class and VA coverage foreach rating of CT please refer thechart in the next page.
15.5
15.5
52
62
5465
78
Ø32
79
CLAMP
5
CG
EC
T -
1
SERIES CGECT,ENCLOSED
MEASUREMENT CTS
The shaded squares indicate the range upto which the CTs can perform.
CG
EC
T -
3C
GE
CT
- 2
RATIO CLASS 5 CLASS 3 CLASS 1
VA 2 2.5 3 4 5 7.5 2 2.5 3 4 5 7.5 2 2.5 3 5 17.5 10
50/5 A
60/5 A
75/5 A
80/5 A
100/5 A
125/5 A
150/5 A
RATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5
VA 2 2.5 3 5 7.5 10 15 2 2.5 3 5 7.5 10 15 2 2.5 3 5 7.5 10 15 2 2.5 3 5 7.5 10 15
75/5 A
80/5 A
100/5 A
125/5 A
150/5 A
160/5 A
200/5 A
250/5 A
300/5 A
350/5 A
400/5 A
RATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5
VA 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15
300/5 A
400/5 A
500/5 A
600/5 A
800/5 A
1000/5 A
1200/5 A
1600/5A
2000/5A
2500/5A
6
NOTE: The shaded squares indicate the range upto which the CTs can perform.
All dimensions are in mm
SERIES CGCTP,TAPE WOUND
MEASUREMENT CTS
to 4000 Amps.
Available in six optimised framesizes - CGCTP-1 to CGCTP-6.
Cost effective, economicaldesign.
Secondary currents 1 Amp and5 Amps.
Can operate at temperatureranges from -20°C upto + 70°Cambient.
Di-electric strength of 2.50 kVfor one minute.
Nominal frequency 50/60 Hz.
Rated voltage 660V AC max.
Short circuit thermal current(Ith) - 60 times rated primarycurrent for one second
Rated dynamic current (I Dyn)- 2.5 times Ith.
Degree of protection IP40.
The CGCTP range of CTs canmeasure currents from 30 Ampsto 4000 Amps. Their accuracyallows operation within the rangeof 5% to 120% of the primarycurrent. This accuracy dependson the load connected to thesecondary of the CTs, whichincludes both the impedance of theconnected measuring instrumentsand connecting cables. Clamp typetermination as shown in the figureis the standard feature. Options ofFlying lead or Moulded TerminalBlock can be offered againstrequest.
PERFORMANCE
Designed to comply with BS7626, 1993 and IEC 44, 1996(earlier IEC 185, 1987)
Primary currents from 30 Amps
M 6 Screws
Optional MountBracket
ØA
ØB
L
TYPE ØA ØB L
CGCTP - 1 72 22 36
CGCTP - 2 72 34 36
CGCTP - 3 95 54 40
CGCTP - 4 133 83 46
CGCTP - 5 150 102 46
CGCTP - 6 198 145 46
CG
CT
P -
3C
GC
TP
-1C
GC
TP
- 2
CG
CT
P -
4C
GC
TP
- 6
CG
CT
P -
5
RATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5VA 2 3 4 5 7.5 2 3 4 5 7.5 3 5
30/5 A40/5 A50/5 A60/5 A75/5 A100/5 A150/5ARATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5
VA 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15 2 3 5 7.5 10 1575/5 A100/5 A150/5 A200/5 A300/5 A400/5 ARATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5
VA 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15300/5 A400/5 A500/5 A600/5 A800/5 A
1000/5 A1200/5 ARATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5
VA 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15600/5 A800/5 A
1000/5 A1200/5 A1600/5 A2000/5 ARATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5
VA 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 151200/5 A1600/5 A2000/5 A2500/5 ARATIO CLASS 5 CLASS 3 CLASS 1 CLASS 0.5
VA 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 15 2 5 7.5 10 151600/5 A2000/5 A2500/5 A3000/5 A4000/5 A
7
TYPE ØA ØB L
CGPRO - 1 85 22 As
CGPRO - 2 100 34 mentioned
CGPRO - 3 110 54 in the
CGPRO - 4 140 86 shaded
CGPRO - 5 165 103 area of
CGPRO - 6 200 144 table below
SERIES CGPRO,TAPE WOUND
PROTECTION CTSC
GP
RO
- 1
CG
PR
O -
2C
GP
RO
- 3
CG
PR
O -
4C
GP
RO
- 5
CG
PR
O -
6
OptionalMount Bracket
L
M 6 Screws
ØB in mmØ A in mm
PROTECTION CTS
A protection CT is required totransform the primary current tosecondary current up to a specifiedaccuracy limit factor according tothe particular classification as setout in the Standard Specification.
PERFORMANCE
Designed to comply withBS 7626, 1993 and IEC 44, 1996(earlier IEC 185, 1987)Primary currents from 50 Ampsto 4000 Amps.Available in six optimisedframe sizes - CGPRO-1 toCGPRO-6.Cost effective, economicaldesign.Secondary currents 1 Amp and5 Amps.Can operate at temperature
All dimensions are in mm.
Clamp type termination as shownin the figure is the standard feature.Options of flying lead or mouldedterminal block can be offeredagainst request.
ranges from -20°C upto + 70°Cambient.
Di-electric strength of 2.50 kVfor one minute.
Nominal frequency 50/60 Hz.
Rated voltage 660V AC max.
Short circuit thermal current(Ith) - 60 times rated primarycurrent for one second
Rated dynamic current (I Dyn)- 2.50 times Ith.
Degree of protection IP40.
Ratio Class 10P10 Class 10P15 Class 5P10 Class 5P15VA 5 7.5 5 5 7.5
50/5 A60/5 A75/5 A 95 100100/5 A 75 105 110 80 110
Ratio Class 10P10 Class 10P15 Class 5P10 Class 5P15VA 5 7.5 10 15 20 5 7.5 10 15 20 5 7.5 10 15 20 5 7.5 10 15 20
75/5 A 95 100100/5 A 75 105 110 80 100150/5 A 55 75 100 80 110 60 80 105 85200/5 A 50 60 75 105 70 90 110 55 65 80 100 75 95300/5 A 35 50 60 95 95 55 65 85 110 40 55 65 80 100 60 70 90400/5 A 30 40 45 60 75 45 60 75 90 110 35 45 50 65 80 45 60 75 90Ratio Class 10P10 Class 10P 15 Class 5P10 Class 5P15
VA 5 7.5 10 15 20 5 7.5 10 15 20 5 7.5 10 15 20 5 7.5 10 15 20300/5 A 60 80 100 95 65 85 105 100400/5 A 50 70 80 75 105 55 75 85 80 110500/5 A 45 55 70 95 70 80 105 50 60 75 100 75 85 110600/5 A 45 55 65 85 110 60 75 100 50 60 70 90 65 80 105800/5 A 40 45 55 70 85 55 65 75 85 45 50 60 75 90 60 70 80 90
1000/5 A 35 40 50 60 70 45 60 70 85 110 35 45 50 65 75 50 65 75 90Ratio Class 10P10 Class 10P 15 Class 5P10 Class 5P15
VA 5 7.5 10 15 20 5 7.5 10 15 20 5 7.5 10 15 20 5 7.5 10 15 20600/5 A 45 55 65 85 110 60 75 100 50 60 70 90 65 80 105800/5 A 40 45 55 70 85 55 65 75 85 45 50 60 75 90 60 70 80 90
1000/5 A 35 40 50 60 70 45 60 70 85 110 35 45 50 65 75 50 65 75 901200/5 A 35 40 45 55 65 45 55 65 85 100 35 45 50 55 70 45 55 65 90 1051600/5 A 35 40 40 50 55 40 45 55 75 85 35 40 45 55 60 45 50 60 80 902000/5 A 35 35 40 40 45 40 45 45 60 75 35 35 40 45 50 45 50 50 65 80
Ratio Class 10P10 Class 10P15 Class 5P10 Class 5P15VA 5 7.5 10 15 20 5 7.5 10 15 20 5 7.5 10 15 20 5 7.5 10 15 20
1200/5 A 35 40 45 55 65 45 55 65 85 100 35 45 50 55 70 45 55 65 90 1051600/5 A 35 40 40 50 55 40 45 55 75 85 35 40 45 55 60 45 50 60 80 902000/5 A 35 35 40 40 45 40 45 45 60 75 35 35 40 45 50 45 50 50 80 802500/5 A 35 35 40 40 45 35 40 45 55 65 35 35 40 45 50 40 45 50 65 70
Ratio Class 10P10 Class 10P15 Class 5P10 Class 5P15VA 5 7.5 10 15 20 5 7.5 10 15 20 5 7.5 10 15 20 5 7.5 10 15 20
1600/5 A 35 40 40 50 55 40 45 55 75 85 35 40 45 55 60 45 50 60 80 902000/5 A 35 40 40 40 45 40 45 45 60 75 35 35 40 45 50 45 50 50 65 802500/5 A 35 35 40 40 45 35 40 45 55 65 35 35 40 45 50 40 45 50 60 703000/5 A 35 35 35 40 40 35 40 40 45 60 35 35 40 40 45 40 45 50 60 704000/5 A 35 35 35 35 35 35 35 40 45 45 35 35 35 40 40 35 40 45 50 50
8
Product improvement is a continuous process. Hence datagiven in this catalogue is subject to change without intimation.
SERIES IC,RESIN CAST CTS
Series IC CTs, cast in polyesterresin and confirming toBS 7626, 1993 and IEC 44, 1996(earlier IEC 185, 1987) are designedfor measurement and protection withany accuracy class.
The ID can be either circular orrectangular to suit various sizes of busbars/links, to customer requirements.
The cores are made from cold rolledgrain oriented silicon steel continuousstrips. Based on the ID requirement, asuitable former is used for making thecore. As the grain oriantation oflamination gets disturbed in theprocess, the cores are annealed in anitrogen furnace.
Different sizes of moulds with adjustableside plate are used to suit the finaloverall dimensions of the CTs based onthe ID specified by the customers.
The CTs can be offered for VAburdens up to 50 VA. For metering CTs,these can be with class '1' or class '3'or class '0.5' accuracy. For protectionaccuracy class of 5P10, 5P15 and5P20 can be offered.
Special class 'PS' accuracy protectionCTs are offered with the Knee PointVoltage and Secondary Resistancerequirements, as specified.
For lower ratios, the CTs will be woundprimary type, with separate primary andsecondary terminals. These CTs will
have a short-time current rating of 60times the rated primary current for onesecond. The insulation level of theseCTs is for 3 kV for 1 minute.
The CTs are offered with terminals.Sealing arrangement and mountinginserts can be provided on request.
SR.MEASUREMENT CTS PROTECTION CTS
RATIOVA
ACC.D Ø A × B × C E VA ACC. D Ø A × B × C ENO.
CL.1 100/5A 5 1 30 95 × 110 × 70 50 5 5P10 30 110 × 125 × 110 502 100/5A 7.5 1 30 110 × 125 × 85 50 7.5 5P10 30 130 × 145 × 125 753 125/5A 5 1 30 95 × 110 × 70 50 5 5P10 30 110 × 125 × 110 504 125/5A 7.5 1 30 95 × 110 × 70 50 7.5 5P10 30 140 × 155 × 125 755 150/5A 5 1 35 95 × 110 × 70 50 5 5P10 35 110 × 125 × 110 506 150/5A 7.5 1 35 95 × 110 × 70 50 7.5 5P10 35 140 × 155 × 125 757 150/5A 10 1 35 95 × 110 × 70 50 10 5P10 35 140 × 155 ×125 758 175/5A 5 1 35 95 × 110 × 70 50 5 5P10 35 140 × 155 × 110 759 175/5A 7.5 1 35 95 × 110 × 70 50 7.5 5P10 35 140 × 155 × 125 75
10 175/5A 10 1 35 95 × 110 × 70 50 10 5P10 35 140 × 155 × 125 7511 200/5A 15 1 35 95 × 110 × 70 50 15 5P10 35 140 × 155 × 125 7512 250/5A 15 1 35 110 × 125 ×70 50 15 5P10 35 140 × 155 × 125 7513 300/5A 15 1 45 110 × 125 × 60 50 15 5P10 45 140 × 155 × 120 7514 400/5A 15 1 45 110 × 125 × 60 50 15 5P10 45 140 × 155 × 110 7515 630/5A 15 1 45 110 × 125 × 60 50 15 5P10 45 140 × 155 × 110 7516 630/5A 15 1 70 130 × 145 × 60 50 15 5P10 70 170 × 180 × 110 7517 800/5A 15 1 90 150 × 160 × 50 75 15 5P10 90 170 × 180 × 80 7518 1000/5A 15 1 90 150 × 160 × 50 75 15 5P10 90 170 × 180 × 80 7519 1250/5A 15 1 85 150 × 160 × 50 75 15 5P10 85 170 × 180 × 75 7520 1250/5A 15 1 130 200 × 210 × 50 100 15 5P10 130 210 × 220 × 75 10021 1600/5A 15 1 85 150 × 160 × 50 75 15 5P10 85 170 × 180 × 75 7522 1600/5A 15 1 130 200 × 210 × 50 100 15 5P10 130 210 × 220 × 75 10023 2000/5A 15 1 135 200 × 210 × 50 100 15 5P10 135 235 × 245 × 75 10024 2000/5A 15 1 150 215 × 225 × 50 100 15 5P10 150 250 × 260 × 75 10025 2500/5A 15 1 150 215 × 225 × 50 100 15 5P10 150 250 × 260 × 70 10026 2500/5A 15 1 135 200 × 210 × 50 100 15 5P10 135 235 × 245 × 70 10027 3200/5A 15 1 150 215 × 225 × 50 100 15 5P10 150 250 × 260 × 70 10028 3200/5A 15 1 170 235 × 245 × 50 100 15 5P10 170 270 × 280 × 70 15029 3200/5A 15 1 135 200 × 210 × 50 100 15 5P10 135 235 × 245 × 70 10030 4000/5A 15 1 150 215 × 225 × 50 100 15 5P10 150 250 × 260 × 70 10031 4000/5A 15 1 210 270 × 280 × 50 125 15 5P10 210 315 × 325 × 70 150
Series IC, Bar Primary CTs
RATINGTERMINAL TERMINAL
S1 S2 P1 P2
150 - 125 A M 5 M 12100 - 80 A M 5 M 1075 - 45 A M 5 M 840 - 10 A M 5 M 6
• CTs are for metering (measurement)up to 20VA class 1.
RATING L B H C D E
<TO 100A 90 85 87 25 67 50
>TO 150A 90 85 87 40 67 50
WOUND PRIMARY CTS
E
A
B DØ
25
M5 TERMINAL
M6 INSERT FORMOUNTING(6 MM DEEP THRD.)
C
All dimensions are in mm.
CH
MOUNTING INSERTELEVATION
M6 MOUNTING INSERT4 NOS.
S2 S1
P1 P2
E B
DL
=
==
=
9
M 6 S
CREWS
ONAL MOUNT
CKET
�B
L
Optional Mount
Bracket
Ø B in mm
Ø A in mm
L
M
CG
.ID/3
8/C
Ts/
RP
T/0
3/06
At the cuttin
g edge of
current cont
rol
CURRENT
TRANSFORMERS
CG International
International Operations of
Crompton Greaves Limited
‘Jagruti’, Kanjurmarg (East),
Mumbai (Bombay) - 400 042. (INDIA)
Telephones : +91-22-5555 8000
Direct : +91-22-5555 8954
Fax : +91-22-2577 4066
E mail : cgi@cgl.co.in
Home Page: www.cglonline.com
Series CGCT, enclosedDIN rail panel mountingmeasurement CTs.
Series CGECT, enclosedpanel mountingmeasurements CTs.
Series CGCTP, tapewound, panel mountingmeasurement CTs.
Series CGPRO, tapewound, panel mountingprotection CTs.
Series IC, resin cast,
panel mountingmeasurement andprotection CTs.
Recommended