| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Manual 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.
LW43-252 High voltage sulfur hexafluoride circuit breaker is a three-pole AC 50Hz outdoor high voltage switchgear. It is mainly used for the control and protection of 220kV power system, and can also be used as a contact circuit breaker.
1. Daily temperature difference: ≤25 ºC;
2. Sunshine: 0.1W /cm2;
3. Relative humidity: daily average ≤95%; Monthly average ≤90%
4. Wind speed: 34 m/s;
5. Earthquake resistance: horizontal acceleration 0.250g; Vertical acceleration 0.125g;
6. Pollution level: III (25mm/kV), IV (31mm/kV);
7. Ice thickness: 10 mm (wind speed is not more than 15m/s);
8. Protection level: IP5XW.
| No. | Name | Unit | Parameters | ||||
| 1 | Altitude | m | 1000 | 2000 | |||
| 2 | Temperature | - | -30ºC~40ºC | -40ºC~40ºC | -30ºC~40ºC | -40ºC~40ºC | |
| 3 | Rated voltage | kV | 252 | ||||
| 4 | Rated frequency | Hz | 50 | ||||
| 5 | Rated current | A | 4000 | ||||
| 6 | Rated short-circuit breaking current, Isc | kA | 50 | 40 | 50 | 40 | |
| 7 | Rated short-circuit closing current (peak) | kA | 125 | 100 | 125 | 100 | |
| 8 9 10 11 12 13 |
Rated short-time withstand current (valid value) | kA | 50 | 40 | 50 | 40 | |
| Rated short-circuit lasting time | S | 3 | 3 | 3 | 3 | ||
| Rated peak withstand current | kA | 125 | 100 | 125 | 100 | ||
| Close-in fault breaking current | kA | bsc 90%, sc75% | |||||
| Rated out-of-phase breaking current | kA | lsc 25% | |||||
| 14 | First Breakover Coefficient | - | 1.5 | ||||
| 15 | Rated line-charging switching current | A | 160 | ||||
| No-load transformer breaking current | A | 0.5-20 | |||||
| 16 | 1min Power frequency withstand voltage (valid value) | Fracture | kV | 460;395+145 | 460 | 460 | 460 |
| Pole-to-pole/grounding | 460 | 460 | 460 | 460 | |||
| 17 | Lightning impulse withstand voltage (peak) | Fracture | kV | 1050;950+206 | 1050 | 1050 | 1050 |
| Pole-to-pole/grounding | 1050 | 1050 | 1050 | 1050 | |||
| 18 | Rated operational sequence | - | 0-0.3s-C0-180s-CO | ||||
| 19 | Opening,closing operation voltage | V | DC220; 110 | ||||
| 20 | Tripping coil current | A | 2.0; 5.5 | ||||
| 21 | Closing coil current | A | 2.0; 3.3 | ||||
| 22 | Motor current | V | DC220(AC220) | ||||
| 23 | Total breaking time | ms | ≤60.0 | ||||
| 24 | Tripping time | ms | 24.0-35.0 | ||||
| 25 26 27 |
Closing time Close-open time |
ms ms |
75.0-110.0 60.0-70.0 |
||||
| 28 29 |
Open-close time | ms ms |
300.0 | ||||
| Opening synchronization | ms | ≤4.0 | |||||
| 30 | Closing synchronization | ms | ≤3.0 | ||||
| 31 | Travel | ms | 120.0 ±2.0 -5.0 |
||||
| Contacting travel | 45.0 2.0 | ||||||
| 32 | SF6 Gas pressure (20ºC) |
Rated pressure Alarm pressure |
MPa | 0.60 0.55 |
0.60 0.35 |
0.60 0.55 |
0.60 0.35 |
| Blocking pressure | 0.50 | 0.30 | 0.50 | 0.30 | |||
| 33 | SF6 Gas annual leakage ratio | % | ≤0.5 | ||||
| 34 | Gas moisture content | Acceptance value | ppm(v/v) | ≤150 | |||
| Operation value | ≤300 | ||||||
| 35 | Main loop resistance | μ Q | ≤55.0 | ||||
| 36 | Radio interference level | μV | <500 | ||||
| 37 | Mechanical life | Time | 3000 | ||||
| 38 | Electrical life | Time | 16 | ||||
| 39 40 |
Gas weight in each SF6 | kg | 16 20 16 20 | ||||
| Weight of each circuit breaker | kg | 4000 | |||||
1. Strong self-extinguishing arc breaking ability;
2. Simple structure;
3. Use lengthened spout and materials to add new fillers;
4. Long electrical life;
5. Strong carrying capacity;
6. Good insulation performance;
7. Reliable sealing structure;
8. Low radio interference voltage;
9. Low noise operation;
10. There is no oil leakage or gas leakage;
11. Easy to install on site;
12. Less operation and maintenance.
Note:
1. Weight: 4000kg(with gas);
2. Total gas weight: 35kg.
2. Base load: static 4000kg (three poles);
1333kg (per pole)
Dynamic horizontal direction F: 2200kg;
Vertical direction (upward) : 3000kg;
Vertical direction (downward) : 5000kg.
3. The levelness of the concrete surface is not more than 1.5mm.
4. The mounting hole for connecting the wiring terminal with the primary line shall be drilled according to the needs of the user on site.
The terminal material is aluminum alloy 2A12-T4.
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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