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The BH-0.66 1-shaped current transformer is suitable for indoor use. It is used for current and electrical energy measurement or metering in an alternating current circuit with a maximum equipment voltage of 0.72KV and below, a load power factor of 0.8,and a rated frequency of 50Hz. It is installed by means of busbar fixing or base plate fixing. There is a window in the middle of the current transformer, through which a single busbar or cable can pass.
Enforce standards
GB/T 20840《Transformer》
IEC 61869《Instrument transformers》
Type description
Normal service condition
The altitude does not exceed 1000m.
The ambient temperature for the use of the current transformer is: indoors -5℃ to 40℃.
The current transformer is for indoor use, and the other considered operating conditions are as follows:
a) The influence of solar radiation can be ignored.
b) The ambient air has no obvious pollution from dust, smoke, corrosive gases, vapors or salts.
c) The humidity conditions are as follows:
1) The average value of the relative humidity measured within 24 hours does not exceed 95%.
2) The average value of the water vapor pressure within 24 hours does not exceed 2.2kPa.
3) The average value of the relative humidity within one month does not exceed 90%.
4)The average value of the water vapor pressure within one month does not exceed 1.8kPa.
Performance parameter
| Model number | Current ratio A | Rated output VA | Number of turns through the heart | ||||
| 1rank | 0.5rank | 0.5S rank | 0.2 rank | 0.2S rank | |||
| 80 I | 300/5 | 5 | 5 | 2.5 | 2.5 | 2.5 | 1 |
| 400/5 | 5 | 5 | 2.5 | 2.5 | 2.5 | 1 | |
| 500/5 | 10 | 10 | 5 | 5 | 5 | 1 | |
| 600/5 | 10 | 10 | 5 | 5 | 5 | 1 | |
| 750/5 | 10 | 10 | 10 | 10 | 5 | 1 | |
| 800/5 | 10 | 10 | 10 | 10 | 5 | 1 | |
| 1000/5 | 10 | 10 | 10 | 10 | 5 | 1 | |
| 1200/5 | 20 | 20 | 20 | 20 | 5 | 1 | |
| 1500/5 | 20 | 20 | 20 | 20 | 10 | 1 | |
| 2000/5 | . | * | 20 | 20 | 10 | 1 | |
| 2500/5 | . | * | 30 | 30 | 10 | 1 | |
| 2000/5 | 20 | 20 | . | - | . | 1 | |
| 2500/5 | 30 | 30 | - | * | . | 1 | |
| 300/1 | 5 | 5 | 1 | ||||
| 400/1 | 5 | 5 | 5 | 5 | 1 | ||
| 500/1 | 10 | 10 | 5 | 5 | 5 | 1 | |
| 600/1 | 10 | 10 | 5 | 5 | 5 | 1 | |
| 750/1 | 10 | 10 | 10 | 10 | 5 | 1 | |
| 800/1 | 10 | 10 | 10 | 10 | 5 | 1 | |
| 1000/1 | 10 | 10 | 10 | 10 | 5 | 1 | |
| 1200/1 | 20 | 20 | 20 | 20 | 5 | 1 | |
| 1500/1 | 20 | 20 | 20 | 20 | 10 | 1 | |
| 2000/1 | 20 | 20 | 20 | 20 | 10 | 1 | |
| 2500/1 | 30 | 30 | 30 | 30 | 10 | 1 | |
| 20 I | 75/5100/5 | 2.52.5 | 11 | ||||
| 30/5 | 5 | 2.5 | 2.5 | 2.5 | 2.5 | 5 | |
| 30 I | 50/5 | 5 | 2.5 | 2.5 | 2.5 | 2.5 | 3 |
| 75/5 | 5 | 2.5 | 2.5 | 2.5 | 2.5 | 2 | |
| 75/5 | 2.5 | 1 | |||||
| 100/5 | 2.5 | 1 | 1 | ||||
| 100/5 | 5 | 5 | 2.5 | 2.5 | 2.5 | 2 | |
| 150/5 | 5 | 2.5 | 2.5 | 2.5 | 2.5 | 1 | |
| 200/5 | 5 | 5 | 2.5 | 2.5 | 2.5 | 1 | |
| 250/5 | 5 | 5 | 2.5 | 2.5 | 2.5 | 1 | |
| 300/5 | 5 | 5 | 2.5 | 2.5 | 2.5 | 1 | |
| 400/5 | 5 | 5 | 2.5 | 2.5 | 2.5 | 1 | |
| 500/5 | 5 | 5 | 1 | ||||
| 600/5 | 10 | 10 | 1 | ||||
| 30/1 | 2.5 | 2.5 | 5 | ||||
| 50/1 | 2.5 | 2.5 | 3 | ||||
| 75/1 | 1 | 12 | |||||
| 75/1 | 2.5 | 2.5 | |||||
| 100/1 | 2.5 | 1 | 1 | ||||
| 100/1 | 5 | 5 | 2 | ||||
| 150/1 | 2.5 | 2.5 | 11 | ||||
| 200/1 | 5 | 5 | |||||
| 250/1 | 5 | 5 | 11 | ||||
| 300/1 | 5 | 5 | |||||
| 100 I | 600/5 | 10 | 10 | 5 | 5 | 5 | 1 |
| 750/5 | 10 | 10 | 10 | 10 | 5 | 1 | |
| 800/5 | 10 | 10 | 10 | 10 | 5 | 1 | |
| 1000/5 | 10 | 10 | 10 | 10 | 5 | 1 | |
| 1200/5 | 20 | 20 | 20 | 20 | 5 | 1 | |
| 1500/5 | 20 | 20 | 20 | 20 | 10 | 1 | |
| 2000/5 | 20 | 20 | 20 | 20 | 10 | 1 | |
| 2500/5 | . | . | 30 | 30 | 10 | 1 | |
| 3000/5 | . | . | 30 | 30 | 10 | 1 | |
| 2500/5 | 30 | 30 | * | * | * | 1 | |
| 3000/5 | 30 | 30 | . | * | * | 1 | |
| 600/1 | 10 | 10 | 5 | 5 | 5 | 1 | |
| 750/1 | 10 | 10 | 10 | 1 | |||
| 800/1 | 10 | 10 | 10 | 10 | 5 | 1 | |
| 1000/1 | 10 | 10 | 10 | 10 | 5 | 1 | |
| 1200/1 | 20 | 20 | 20 | 20 | 5 | 1 | |
| 1500/1 | 20 | 20 | 20 | 20 | 10 | 1 | |
| 2000/1 | 20 | 20 | 20 | 10 | 1 | ||
| 2500/1 | 30 | 30 | 30 | 30 | 10 | 1 | |
| 3000/1 | 30 | 30 | 30 | 30 | 10 | 1 | |
