Audited Supplier
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.
Standards:GB/T 11024; DL/T 840; IEC 60871| Item | Unit | Parameter |
| Rated voltage | kV | 6.6, 6.9, 7.2, 10.5, 11, 12, 21 (negotiable) |
| Rated frequency | Hz | 50, 60 |
| Rated capacity | kvar | 100, 200, 250, 300, 334, 400, 500 (negotiable) |
| Loss Angle tangent value(tanδ) | ≤0.0003 | |
| Phase | Three | |
| Insulation level | kV | 42/75, 50/125 |
| Discharge resistance | The capacitor is equipped with discharge resistance, and after disconnecting from the grid, the voltage on the terminal can be reduced to less than 50V within 10 minutes | |
| Capacitance deviation | -3%~+5% | |
| Protection method | Internal fuse or no fuse |
1. Bushing: cold-pressed, anti-pollution type bushings, creepage distance is not less than 31mm/kV.
2. Liquid medium: 100% benzyl toluene (M/DBT) is used, which has excellent low temperature performance and partial discharge performance.
3. The main insulation adopts composite insulation structure, which ensures excellent electrical performance and has certain mechanical strength, ensuring that the ground insulation of the capacitor complete set is 100% reliable without protection.
4. Good sealing performance: annual leakage rate is less than 0.1%, through automatic argon arc welding, vacuum leakage test, hot aging and other measures to ensure the sealing performance of the capacitor.
5. Partial discharge level: the extinguishing voltage is not less than 1.5Un, and each capacitor is tested for partial discharge during factory test.
2. The elevation of the installation site is generally not more than 2000 meters
3. Temperature category: -40/B, pollution level: 1V
4. There is no gas or steam that is seriously corrosive to metal
5. No strong mechanical vibration
6. No explosive, inflammable and dangerous goods.
