Instrument Transformer
Product Description Rating Accuracy Class
Low -Tension
Current - Transformer

1) To step down line current to a
    value which is suitable for standard
    measuring instrument, relays etc.

2) To sense abnormalities in current
    and give current signals to protective
    relays to isolate the defective system.

 0.66 kV
to
1.1 kV 		Metering (0.2 to 5.0)
Protection (5P - 10P)
Indoor - Resincast
Current - Transformer		 1.1 kV
to
33 kV 		Metering (0.2 to 3.0)
Protection (5P - 10P)
Outdoor oil - cooled
Current - Transformer		 11 kV
to
400 kV 		Metering (0.2 to 3.0)
Protection (5P - 10P)
Low - Tension
Potential - Transformer

1) To step down line voltage to a value
    which is suitable for standard
    measuring instrument, relays etc.

2) To sense abnormalities in voltage
    and give voltage signals to protective
    relays to isolate the defective system.

63.5 V
to
1.1 kV 		Metering (0.5 - 3.0)
Protection (3P)
Indoor Resincast
Potential - Transformer		 1.1 kV
to
33 kV 		Metering (0.2 - 3.0)
Protection (3P)
Outdoor Oil - Cooled
Potential-Transformer		 6.6 kV
to
132 kV		 Metering (0.2 - 3.0)
Protection (3P - 5 P)
Home