Products

High Voltage Instrument Transformers

We specialize in manufacturing of high voltage instrument transformers up to 245 kV. We can offer a wide range of voltage classes from 11 kV up to 245 kV. We also offer combined instrument transformers up to 132 kV class. Please see the links on the left for data sheets.

Current Transformers | Voltage Transformers | Combined Instrument Transformers

Type		CPT 11	CPT 22	CPT 33	CPT 66	CPT 110	CPT 132
Rated System Voltage	kV	11	22	33	66	110	132
Highest System Voltage	kV	12	24	36	72.5	123	145
Power frequency withstand voltage	kV	28	50	70	140	230	275
Lightning impulse withstand voltage	kVp	75	125	170	325	550	650
Frequency	Hz	50
Rated primary current up to	A	4000
Rated secondary current	A	0.5775/1/5
Number of secondary windings		up to 5
Rated short-time thermal current, 1s	kA	80
Rated dynamic current	kA	200
Maximum ouput at class 0.2	VA	200
Thermal limiting output	VA	2500
Accuracy classes		0.1 - 3; P; 3P; PR; PS; PX; TPS; TPX; TPY; TPZ
Insulation class		A/E

Type		DCT 11	DCT 22	DCT 33	DCT 66	DCT 110	DCT 132	DCT 220
Rated System Voltage	kV	11	22	33	66	110	132	220
Highest System Voltage	kV	12	24	36	72.5	123	145	245
Power frequency withstand voltage	kV	28	50	70	140	230	275	460
Lightning impulse withstand voltage	kVp	75	125	170	325	550	650	1050
Frequency	Hz	50
Rated primary current up to	A	4000
Rated secondary current	A	0.5775/1/5
Number of secondary windings		up to 5
Rated short-time thermal current, 1s	kA	80
Rated dynamic current	kA	200
Accuracy classes		0.1 - 3; P; PR; PS; PX; TPS; TPX; TPY; TPZ
Insulation class		A/E

Type		IVT 11	IVT 22	IVT 33	IVT 66	IVT 110	IVT 132	IVT 220
Rated System Voltage	kV	11	22	33	66	110	132	220
Highest System Voltage	kV	12	24	36	72.5	123	145	245
Power frequency withstand voltage	kV	28	50	70	140	230	275	460
Lightning impulse withstand voltage	kVp	75	125	170	325	550	650	1050
Frequency	Hz	50
Maximum output at class 0.2	VA	200
Number of secondary windings		up to 3
Thermal limiting output	VA	2500
Accuracy classes		0.1 - 3; 3P; 6P
Insulation class		A/E

Indian Transformers Company Ltd

Products

High Voltage Instrument Transformers

Type

CPT 11

CPT 22

CPT 33

CPT 66

CPT 110

CPT 132

Rated System Voltage

kV

11

22

33

66

110

132

Highest System Voltage

kV

12

24

36

72.5

123

145

Power frequency withstand voltage

kV

28

50

70

140

230

275

Lightning impulse withstand voltage

kVp

75

125

170

325

550

650

Frequency

Hz

50

Rated primary current up to

A

4000

Rated secondary current

A

0.5775/1/5

Number of secondary windings

up to 5

Rated short-time thermal current, 1s

kA

80

Rated dynamic current

kA

200

Maximum ouput at class 0.2

VA

200

Thermal limiting output

VA

2500

Accuracy classes

0.1 - 3; P; 3P; PR; PS; PX; TPS; TPX; TPY; TPZ

Insulation class

A/E

Type

DCT 11

DCT 22

DCT 33

DCT 66

DCT 110

DCT 132

DCT 220

Rated System Voltage

kV

11