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
The transformer neutral point gap grounding protection device is used for 35KV, 110KV, 220KV, 330KV, 500KV power transformer neutral point to achieve the transformer neutral point grounded or ungrounded operation of two different modes of operation; Therefore, the damage to the transformer caused by the rise of the neutral voltage caused by the system failure can be avoided. This product is widely used in electric power, metallurgy, petrochemical, construction, environmental protection and other fields.
Current transformer selection: dry current transformer cast with epoxy resin. The current transformer is installed in the stainless steel box, which is not affected by the environmental climate and has a long service life, so that the protection will not appear misoperation or rejection and is stable and reliable.
Product Parameters
| Model |
Rated voltage of transformer(kV) |
Neutral point withstand voltage |
Disconnector |
Oxide zinc arrester |
Discharging gap |
Current transformer |
| Lightning full wave and chopped impulse withstand voltage (kv) |
1min power frequency(kV) |
Rated current (A) |
Operational mechanism |
Rated voltage (kV) |
Continuous working voltage (kV) |
DC 1mA reference voltage ≥ |
8/20µs lightning impulse residual current (kV) |
Power frequency discharging voltage(kV) |
Type test |
Transformation ratio |
| JXB-110 |
110 |
250 |
95 |
400 |
CS8-5 (manual) or CJ6 (Electrical)
|
72 |
58 |
103 |
186 |
83 |
Epoxy resin poured completely enclosed pillar type 10kV (110/5, 200/5, 300/5, 400/5, 500/5, 600/5) |
| JXB-220 |
220 |
320 |
200 |
600 |
144 |
116 |
205 |
320 |
166 |
| JXB-330 |
330 |
440 |
292 |
600 |
CJ6 (Electrical) |
207 |
166 |
292 |
440 |
252 |
Properties
1. Meet the standards, professional manufacturing;
2. Novel design, overall installation;
3. Effective protection, stable characteristics;
4. Flexible assembly, easy to use;
5. strong technical force, good service.
Service Environment
1. Suitable for indoor and outdoor;
2. Ambient temperature: not lower than -40ºC, not higher than +55ºC; Relative humidity: not more than 95% (25ºC);
3. The altitude does not exceed 4000m, beyond 4000m can be customized according to the actual situation;
4. Areas with seismic intensity of 8 degrees and below; Wind speed does not exceed 35m/s;
5. Power grid frequency: 58 ~ 62Hz (60Hz system), 48 ~ 52Hz (50Hz system);
6. The air in the installation site should not contain chemical gases and vapors, and there is no dust.
Installation Instructions
| Model |
H |
W |
L |
Base hole diameter |
Base hole distance |
| JXB-110 |
1315 |
370 |
1300 |
4×Ø20 |
450×450 |
| JXB-220 |
1900 |
370 |
1300 |
4×Ø20 |
450×450 |
| JXB-330 |
Customizable |
Certifications
Audited Supplier 
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