| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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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.
1. The ambient air temperature does not exceed 40 ° C, and the average measured within 24 hours does not exceed 35 ° C, and the lowest ambient air temperature is -15 ° C;
2. Altitude: no more than 3000m;
3. The surrounding air is not significantly contaminated by dust, smoke, corrosive and/or flammable gases, vapors or salt spray;
4. Humidity conditions: the average relative humidity is not more than 95%, the average monthly relative humidity is not more than 90%,
5. The average water steam pressure shall not exceed 2.2kPa, and the average monthly water steam pressure shall not exceed 1.8kPa;
6. Vibration or ground movement from outside switchgear and control equipment can be ignored; The amplitude of the electromagnetic interference induced in the secondary system does not exceed 1.6kV.
7. Special conditions of use: The installation site is more than 1000m above sea level, the ambient air temperature exceeds the limit value specified in the normal conditions of use, or the place where high humidity is easy to produce condensation, please negotiate with us to customize.
| No. | Item | Unit | 20kA | 25kA | 31.5kA | 40kA | 50kA | |||||
| 1 | Rated voltage | kV | 12 | |||||||||
| 2 | Max. working voltage | kV | 12 | |||||||||
| 3 | Rated current | A | 630 | 1250 | 1250-2500 | 1250-3150 | 1250-3150 | |||||
| 4 | Rated short-circuit breaking current (valid) | kA |
20 | 25 | 31.5 | 40 | 50 | |||||
| 5 | Rated short-circuit CO current(peak) | 50 | 63 | 80 | 100 | 125 | ||||||
| 6 | Rated peak withstand current | 50 | 63 | 80 | 100 | 125 | ||||||
| 7 | 4S rated short-time withstand current (valid) | 20 | 25 | 31.5 | 40 | 50 | ||||||
| 8 | 1min power frequency withstand voltage(peak) | kV |
42/48 | |||||||||
| 9 | Lightning impulse withstand voltage | 75/85 | ||||||||||
| 10 | Rated thermostable time | s | 4 | |||||||||
| 11 | Rated operational sequence | O-0.3s-CO-180s-CO | ||||||||||
| 12 | Rated short-circuit breaking current time | Time | 50 | |||||||||
| 13 | Rated operational voltage and auxiliary circuit voltage | V | AC,DC110/220 | |||||||||
| 14 | Contact distance | mm | 11±1 | |||||||||
| 15 | Overtravel | mm | 4±0.5 | |||||||||
| 16 | Three-phase CO bounce time | ms | ≤2 | |||||||||
| 17 | Average opeing speed | m/s | 0.9~1.2 | |||||||||
| 18 | Average closing speed | m/s | 0.4~0.8 | |||||||||
| 19 | Allowable wear thickness | mm | 3 | |||||||||
After-sales Service
1.Our company provides you with project design and process design, and designs and manufactures products according to your equipment purchase plan and specific needs. And train technical and operating personnel for you.
2.The newly purchased products are provided with online assistance for installation and debugging. The products are under the lifelong service system. If problems occur in normal use, we will provide solutions within one working day after receiving user's feedback. We will try our best to get the product up and running as soon as possible. And there are regular visits by professional technicians to ensure the long-term, safe and reliable use of our products.
3.We use quality authentic materials, process and manufacture in strict compliance with ISO9001:2000 international quality management to ensure the quality of excellence and the smooth installation!
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