This type of transformer key is an oil immersed outdoor structure composed of current and voltage transformers. It is mainly suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 10kV or below for energy metering and current and voltage measurement. The wiring method of this product is VN type
This type of transformer key is an oil immersed outdoor structure composed of current and voltage transformers. It is mainly suitable for use in power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of 10kV and below for energy metering and current and voltage measurement. The wiring method of this product is VN type.
This product complies with the standards GB 20840.1-2010 "Transformers Part 1: General Technical Requirements", GB 20840.2-2014 "Transformers Part 2: Supplementary Technical Requirements for Current Transformers", GB 20840.3-2013 "Transformers Part 3: Supplementary Technical Requirements for Voltage Transformers", and GB 20840.4-2015 "Transformers Part 4: Supplementary Technical Requirements for Combination Transformers".
It is a combination of current and voltage transformers, with oil-immersed structure suitable for outdoor use, is applicable for power systems of rated frequency 50Hz or 60Hz and rated voltage up to and including 10kV, used for electric energy metering and current/voltage measurement. Its connection mode is VN.
It complies with the standards GB 20840.1-2010 Instrument transformers-Part 1: General requirements, and GB 20840.2- 2014 Instrument transformers-Part 2: Additional requirements for cu『rent transformers, GB 20840.3-2013 Instrument transformersPart 3:Additional requirements for inductive voltage transformers, and GB 20840.4-2015 Instrument transformers-Part 4: Additional requirements for combined transformers.

1. Altitude: not exceeding 2000 meters;
2. Environmental temperature: -40 ℃ to+40 ℃;
3. Relative humidity of the air: ≤ 85%;
4. Installation location: Outdoor.
5. Pollution registration: Level Ill.
1.Altitude should not exceed 1000m;
2.Ambient temperature: -5℃~+40℃;
3.Air relative humidity:≤85%;
4. Installation site: indoor。
5.Pollution level: Grade Ill
1. Rated insulation level: 12/42/75kV, 7.2/30/60KV;
2. Rated frequency: 50Hz or 60Hz;
3. Rated secondary current: 5A or 1A;
4. Power factor: cos φ=0.8;
5. Weight: 90kg.
1. Insulation level: 12/42/? SkV, 7.2/30/60kV;
2. Rated frequency: SOHz or 60Hz,
3. Rated two current: 5A or 1A
4. Power factor: cos 中=0.8;
5. Weight: 90kg.