| 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.
ZW8-12 series outdoor high-voltage vacuum circuit breaker is rated voltage 12kV, three-phase AC 50Hz outdoor high-voltage switchgear, mainly used to switch off and close the load current, overload current, short-circuit current of rural network, urban network and small power system. The overall structure of the product is three-phase common box type, three-phase vacuum arc extinguishing chamber is placed in a metal box, the use of SMC insulation material alternate-phase insulation and ground insulation, reliable performance, high insulation strength.
ZW8-12G is a combination of ZW8-12 circuit breaker and isolation knife, called combined circuit breaker, can be used as a segmented switch, can also be self-provided power supply, there are built-in PT and external PT.
The operating mechanism of this series of products is CT23 type spring energy storage operating mechanism, which is divided into electric and manual.
1. Working environment temperature: not more than 40ºC; The average daily temperature does not exceed 35ºC; The minimum ambient air temperature is -25 ° C.
2. Air relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%; The average daily steam pressure is not more than 2.2kPa; The average monthly value is not more than 1.8kPa;
3. Altitude: no more than 2000m;
4. The surroundings are not significantly contaminated by dust, smoke, corrosive and/or flammable gases, vapors or salt spray;
5. Vibration or ground movement from outside switchgear and control equipment is negligible;
6. The amplitude of induced electromagnetic interference in the secondary system does not exceed 1.6kV.
| No. | Item | Unit | Data | ||
| 6.3KA 12.5KA 20KA | |||||
| 1 | Rated voltage | KV | 12 | ||
| 2 | Max. working voltage | KV | 12 | ||
| 3 | Rated current | A | 630 | ||
| 4 | Rated short-circuit load breaking current | KA |
6.3 | 12.5 | 20 |
| 5 | Rated short-circuit open/close current | 16 | 31.5 | 50 | |
| 6 | Rated peak withstand current | 16 | 31.5 | 50 | |
| 7 | Rated short-time 1 min withstand current | 6.3 | 12.5 | 20 | |
| 8 | Rated insulation level Power frequency withstand voltage (Dry) Lightning impulse withstand voltage (peak) |
KV |
42 | ||
| 75 | |||||
| 9 | Rated opeational sequence | Open-0.3s-close/open-180s-close/open | |||
| 10 | Mechanical life | Time | 10000 | ||
| 11 | Rated short-circuit breaking current time | Time | 30 | ||
| 12 | Rated closing voltage of operational mechanism | V | 110,220 | ||
| 13 | Rated open voltage of operational mechanism | V | 110, 220 | ||
| 14 | Contact distance | mm | 11±1 | ||
| 15 | Contact spring condense length | mm | 3 | ||
| 16 | Three-phase closing open heterogeneity | ms | ≤2 | ||
| 17 | Average open speed | m/s | 1.0±0.2 | ||
| 18 | Average closing speed | m/s | 0.7±0.15 | ||
| 19 | Open time Under max.operational voltage Under min. operational voltage |
s |
0.015-0.05 | ||
| 0.03-0.06 | |||||
| 20 | Closing time | s | 0.025-0.05 | ||
| 21 | Main circuit resistance of each phase | UΩ | ≤120(≤200) | ||
| 22 | Allowable wear thickness | mm | 3 | ||
1. Using magnetic actuator (permanent magnet) mechanism, the parts are greatly reduced, the closing power is greatly reduced, stable and reliable, without regular maintenance. Ensure the smooth completion of the operation sequence of the recloser (t1-0.3S, t2-3S, t3-3S, locking);
2. Using imported outdoor epoxy as external insulation material, light weight, long life, good weather resistance, no oil, no SF6, in line with environmental requirements.
3. Using advanced DSP chip, set control, protection, measurement, communication in one, so that the system has advanced design, super function.
The integrated sensor technology is adopted to realize the on-line monitoring of the device.
4. Synchronous closing technology is adopted to realize synchronous closing of circuit breakers and effectively suppress operating overvoltage and inrush current.
5. Flexible communication mode, support general wireless packet service (GPRS), support Chinese and English short message;
6. Sampling up to 128 points per week and fast FFT conversion provide high speed and high precision data from fundamental wave to 19th harmonic wave for line measurement and protection.
7. With fast protection function, the distribution network can automatically isolate and restore power supply without the cooperation of the main station, which greatly improves the reliability of power supply.
8. The single-phase grounding fault can be judged online without additional configuration, and the alarm or tripping can be given according to the rule.
9. The temperature correction technology is adopted to make the device achieve high precision under various temperature conditions.
10. The specially designed power management module can provide automatic conversion of 2 auxiliary power input lines (AC110V or AC220V), monitor the battery and control the battery charging voltage and charge and discharge power supply;
11. Friendly interface, full Chinese display, easy to set;
12. All stainless steel manufacturing, no rust, truly maintenance free.
ZW8-12 ZW8-12G
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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