| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Manual Type |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
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.
The 66kV SF6 circuit breaker, model LW9-66, is a porcelain column type high-voltage AC sulfur hexafluoride circuit breaker equipped with the CT20 spring operating mechanism. It is manufactured by High Voltage Switch Co., Ltd. The breaker adopts a self-energy arc-extinguishing principle and has a single-break structure. The three poles of each circuit breaker are mounted on a single frame, achieving three-phase mechanical linkage through the transmission mechanism.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.
Product Overview:
The LW9-66kV SF6 circuit breaker is a porcelain column type high-voltage AC sulfur hexafluoride circuit breaker with the CT15 spring mechanism. The three poles of the circuit breaker are assembled on a single frame, with each pole consisting of a single break structure. All movable components of the three-pole arc extinguishing chambers are mechanically connected to the spring operating mechanism.
The electrical control, protection, signaling devices, SF6 gas pressure monitoring system, and the spring mechanism are all housed inside the control box (2-5). The arc extinguishing chamber (2-2) is connected to the inner cavity of the support porcelain bushing (2-3), filled with SF6 gas at a rated pressure of 0.50 MPa at 20°C. The gas is connected to the gas density controller (2-10) inside the control box through gas pipelines. When the SF6 gas pressure drops to 0.45 MPa at 20°C, an alarm signal is triggered, indicating the need for gas replenishment. When the SF6 gas pressure drops to 0.40 MPa at 20°C, the high-voltage circuit breaker will trip.
Technical Specifications:
The outdoor LW9-72.5 breaker produced by High Voltage Switch Co. is a porcelain column type high-voltage AC SF6 circuit breaker equipped with the CT20 spring operating mechanism. It utilizes a self-energy arc extinguishing principle and features a single-break structure. The three poles of each breaker are mounted on a single frame, achieving three-phase mechanical linkage through the transmission mechanism. The electrical control system allows for both remote and local operations.
| No. | Name | Unit | Parameters | ||||
| 1 | Altitude | m | 1000 | 2000 | |||
| 2 | Temperature | -30ºC~40ºC | -40ºC~40ºC | -30ºC~40ºC | -40ºC~40ºC | ||
| 3 | Rated voltage | kV | 126 | ||||
| 4 | Rated frequency | Hz | 50 | ||||
| 5 | Rated current | A | 3150 | ||||
| 6 | Rated short-circuit breaking current, Isc | kA | 40 | 31.5 | 40 | 31.5 | |
| 7 | Rated short-circuit closing current (peak) | kA | 100 | 80 | 100 | 80 | |
| 8 9 10 11 12 13 |
Rated short-time withstand current (valid value) | kA | 40 | 31.5 | 40 | 31.5 | |
| Rated short-circuit lasting time | S | 4 | 4 | 4 | 4 | ||
| Rated peak withstand current | kA | 100 | 80 | 100 | 80 | ||
| Close-in fault breaking current | kA | bsc 90%,sc75% | |||||
| Rated out-of-phase breaking current | kA | sc 25% | |||||
| 14 | First Breakover Coefficient | 15 | |||||
| 15 | Rated line-charging switching current | A | 31.5 | ||||
| Earth fault current | A | sc 87% | |||||
| 16 | 1min Power frequency withstand voltage (valid value) | Fracture | kV | 230+73 | 230 | 230 | 230 |
| Pole-to-pole/grounding | 230 | 230 | 230 | 230 | |||
| 17 | Lightning impulse withstand voltage (peak) | Fracture | kV | 550+103 | 550 | 550 | 550 |
| Pole-to-pole/grounding | 550 | 550 | 550 | 550 | |||
| 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;5.8 | ||||
| 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 | 35.0 5 | ||||
| 25 26 27 |
Closing time Close-open time |
ms ms |
≤100.0 80.0 |
||||
| 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 | 35.0 2.0 | ||||||
| 32 | SF6 Gas pressure (20ºC) |
Rated pressure Alarm pressure |
MPa | 0.60 0.55 |
0.60 0.35 |
0.60 0.55 |
0.60 035 |
| Blocking pressure | 0.50 | 0.30 | 0.50 | 030 | |||
| 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 | ≤30.0 | ||||
| 36 | Radio interference level | μV | <500 | ||||
| 37 | Mechanical life | Time | 6000 | ||||
| 38 | Electrical life | Time | 16 | ||||
| 39 40 |
Gas weight in each SF6 | kg | 10 | ||||
| Weight of each circuit breaker | kg | 2100 | |||||
1. Simple structure, reliable double cylinder self-energy arc extinguishing chamber excellent breaking performance;
2. Reliable insulation performance;
3. Application of spring operating mechanism;
4. Low noise, low maintenance workload;
5. Out-of-phase grounding fault test;
6. Long mechanical life;
7. Good technology transportation;
8. Easy to install.
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!
){kind=link}