Current & Voltage Transformers

The current and voltage transformers are used for stepping down the current and voltage from high to measurable values. The standard values of the secondary current are 1 Amps and 5 Amps. Similarly the standard secondary voltages are 110 Volt and 110/Ö3 Volt. The current and voltage transformers are together known as instrument transformers and are critical to the measuring and protection system. The performance of energy meters & relays is based on the signals received from them. The instrument transformers are manufactured in compliance to IS/IEC standards.

Current Transformers - Technical Specification

High Voltage Transformers Manufactures in India

System voltage

(KV)

Highest System

voltage (KV)

Primary

Current (Amps)

Secondary

Current (Amps)

High Voltage

withstand (KV)

Impulse Level (KV)

11

12

10-1600

1 – 5

28

75

33

36

10-1600

1 – 5

70

170

Note: Various Indoor and Outdoor models have been tested for fault level up to 31.5 KA as per ISS
Note: Technical data given above is for information only the actual Product may differ as per customer’s specification.

Voltage Transformers - Technical Specification

System voltage (KV)

No. of Phases

Burden (VA)

Accuracy Class

Insulation Level (KV)

11

1 , 3

5 – 200

0.2/3P

12/28/75

33

1, 3

5 – 200

0.2/3P

36/70/170

Note: Technical data given above is for information only the actual Product may differ as per customer’s specification.

OIL FILLED CT-PT UNITS

APLICABLE STANDARD IS : 2705 / IEC 185, IS : 3156 / IEC 186