11kv metering unit

11kV Oil type combined CT PT

Product details:

  • Outdoor oil immersed type combined CT PT
  • Three phase four wire or three phase three wire
  • Rated voltage: 3.3kV, 6kV, 10kV, 11kV, 12.5kV, 13.8kV
  • Metering class for CT: 0.2S, 0.2, 0.3, 0.5, 0.5S, 0.6
  • Metering class for PT: 0.2, 0.3, 0.5, 0.6
  • Standard: IEC, ANSI, GB
  • 11kv metering unit

11kv metering unit 1  11kv metering unit 211kv metering unit 311kv metering unit 411kv metering unit 5

General

This 11kv metering unit, Outdoor oil immersed type combined current transformer/voltage transformer metering instrument transformer (metering units, MOF), used in  current transformer used in 3.3kV, 6kV, 10kV, 11kV, 12.5kV and 13.8kV power system, for measuring energy.

It have been used in outdoor pole mounted and transmission line.
The voltage transformer made from outdoor high quality transformer oil, high quality CRGO core for metering, primary and secondary use pure electrolytic copper, both winding and core have shielding processing.

This combined instrument transformer, can combined from 2 Current transformer and 2 voltage transformer to be 3 phase 3 wire, also can combined from 3 current transformer and 3 voltage transformer to be 3 phase 4 wire.2 voltage transformer structure use V/V connection, 3 voltage transformer structure use Y/Y connection.

Standards
All UNISUN Electric instrument transformers are in conformity with IEC standards, and recommendations IEC 61869. Transformers in conformity with specific country standards can also be supplied. (IEEE C57.13, NBR6855).

Technical data for current transformer

Rated primary current Accuracy classes combination Accuracy class and output (VA) Short-time thermal current Rated dynamic current
(A) 0.2S 0.2 0.5S 0.5 (kA/1s) (kA)
5 0.2S/0.5  0.2S/0.5S  0.2/0.5  0.5/0.5 12.5 12.5 15 15 0.5 12.5
10 1 2.5
15 1.5 3.75
20 2 5
25 2.5 6.25
30 3 7.5
40 4 10
50 5 12.5
75 7.5 18.75
100 20 20 10 25
150 15 37.5
200 20 50
300 30 75
400 40 100
500 50 75
600 60 150
800 80 200
1000 80 200