Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.
Product Description
JDZXW-35 single-phase fully enclosed semi-insulated castable voltage transformer, 35KV indoor high voltage transformer (hereinafter referred to as high voltage transformer) is suitable for electric energy measurement, voltage monitoring and relay protection in power systems with rated frequency of 50Hz or 60Hz and rated voltage of 35kV and below.
Executive Standards:
GB/T20840.3-2013;
GB/T20840.4-2015;
GB311.1-2012;
JJG314-2010.
Product Parameters
Rated voltage
ratio (kV) |
Rated secondary output(VA) |
Max.output(VA)
|
Rated insulation level(kV)
|
| 0.2 |
0.5 |
1 |
3 |
0.2/0.2 |
0.2/0.5 |
0.5/0.5 |
6P(3P) |
| 35/0.1/0.1 |
30 |
90 |
180 |
500 |
/ |
/ |
/ |
100 |
600 |
40.5/95/200
|
| 35/0.1/0.1/0.1 |
/ |
/ |
/ |
/ |
20/20 |
20/30 |
45/45 |
100 |
300/300 |
Insulation requirement:
1. The full-wave withstand voltage (peak) of primary winding lightning impulse (internal and external insulation) is 200kV, and the lightning impulse truncated withstand voltage (peak) is 230kV.
2. The withstand voltage of the end of the primary winding to the secondary winding and the ground frequency is 3kV,1min.
3. The frequency doubling induction withstand voltage of the primary winding is 80kV, 40S.
4. Partial discharge level: When the pre-applied voltage is 64kV (square mean root value) and the measured voltage is 48.6kV, the apparent discharge quantity is not more than 20pC respectively.
Service Environment
1. Installation place: indoor.
2. Ambient temperature: maximum 65ºC. Minimum -45ºC. The average daily temperature is 40ºC.
3. Altitude: No more than 1000m above sea level.
4. Atmospheric conditions: there are no dirty, corrosive and explosive media that seriously affect the insulation performance of the transformer in the atmosphere.
Outline Diagram Examples
Wiring Diagram
Audited Supplier 
JDZXW-35 single-phase fully enclosed semi-insulated castable voltage transformer, 35KV indoor high voltage transformer (hereinafter referred to as high voltage transformer) is suitable for electric energy measurement, voltage monitoring and relay protection in power systems with rated frequency of 50Hz or 60Hz and rated voltage of 35kV and below.
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