The LGB High-voltage Dry-type Current Transformer made by Beijing Nobbel Electrical Tech Develop Co., Ltd. is used for high voltage electrical measure and protect, both for indoor and outdoor.

The LGB High-voltage Dry-type Current Transformer is different from other similar current transformers at home and abroad. With reasonable design, novelty structure, aesthetic configuration and silicon rubber outer insulation sleeve umbrella group, the current transformer has no oil, no ceramic, no gas.

1. Advantages:

1. Dry-type insulation
2. No oilfilling, no gasfilling, no ceramic
3. Antipollution
4. Easy operation and maintenance

2. Type:
  LGB- 1
    L: CT, Current Transformer
    G: dry type,no-filling
    B: with protection winding
    1: rated voltage, kV

3. service conditions
  Ambient air temperature: –50 centigrade ~ +50 centigrade
  The altitude: ≤1000m,if higher,amend according to IEC 60044
  The creepage ratio: 20mm/kV, 25mm/kV or 31mm/kV

4. Technical indexes
  Rated voltage:  33kV, 52kV, 72.5kV, 123kV, 145kV, 170kV, 245kV
  Partial discharge:  ≤5pC
  Dielectric dissipation factor:  ≤0.004
  Ith: 50 kA,  Idyn: 125 kA
  Rated primary current:  ≤3000A
  Rated secondary current:  5A or 1A
  Rated output capacity:  5-60VA
  Accuracy limit factor: 5, 10, 15, 20, 30, 40, 50
  Accuracy classes for measuring core: 0.2, 0.2S, 0.5, 0.5S
  Accuracy classes for protective core: 5P, 10P, 5PR, 10PR, TPY
  All parameters are in accordance with IEC 60044-1