中文
Manager Zhou
Leave a message
Overview
LW36-40.5(W)/T2000-31.5 outdoor sulfur hexafluoride circuit breaker is an electrical device in the AC 50Hz three-phase power system. It is suitable for control and protection in the power system with a rated voltage of 40.5kV. The internal or external Current Transformer can be used for measurement and protection.
Structural features
LW36-40.5 type sulfur hexafluoride circuit breaker is an outdoor porcelain bottle pillar structure, equipped with a CT35 type spring operating mechanism. The mechanism and the body are arranged in a "T" shape. The whole machine is small in size, light in weight, simple in structure, low in operating power, and easy to install and debug. The mechanical life is 10,000 times, suitable for frequent operation;
Adopting compressed air arc extinguishing chamber, the breaking performance is excellent, and the electrical life is up to 20 times;
The sealing performance is reliable, the static seal adopts the "O" type sealing ring structure, and the dynamic seal adopts the "V" type sealing ring with spring pressure compensation structure. The secondary Terminal board of the transformer is produced by pressure injection technology, with strong anti-aging performance, ensuring that the annual leakage rate is ≤0.5%;
The mounting frame and support are made of integral steel plates, using high-strength standard parts, and high mechanical reliability;
The metering grade iron core of the internal or external current transformer is made of microcrystalline alloy high magnetic conductivity material, and the accuracy level can reach 0.2 or 0.2S. Each phase of the product can be equipped with 2~4 current transformers.
Technical Parameters
NO. | Items name | Data | |
1 | rated voltage（kV） | 40.5 | |
2 | Rated current（A） | 1600, 2000 | |
3 | rated insulation level | Power frequency withstand voltage (kV) | 95 |
Lightning impulse withstand voltage (kV) | 185 | ||
4 | Rated short-circuit breaking current (kA) | 25/31.5 | |
5 | Rated out-of-step breaking current (kA) | 7.9/10 | |
6 | Out-of-phase ground fault breaking current (kA) | 27.4/34.8 | |
7 | Rated breaking current of single capacitor bank (A) | 400 | |
8 | Rated operation sequence | O-O.3S-CO-180S-CO | |
9 | Rated voltage of SF6 gas (MPa) | 0.45 | |
10 | Opening time ms (rated voltage) | 30≤t≤40 | |
11 | Closing time ms (rated voltage) | 60≤t≤80 | |
12 | Rated short-circuit making current (peak value) | 63/80 | |
13 | Rated short-circuit duration (S) | 4 | |
14 | Rated short-time withstand current (kA) | 25/31.5 | |
15 | Rated peak withstand current (kA) | 63/80 | |
16 | Mechanical life test (times) | 10000 | |
17 | Rated short-circuit breaking current 31.5kA/40kA cumulative breaking times (times) | 20 | |
18 | Accumulated breaking times of rated current (times) | 2000 | |
19 | Annual leakage rate of SF6 gas (%) | ≤0.5 | |
Trace Moisture Content of SF6 Gas (V/V) | ≤150 | ||
20 | External insulation leakage specific distance of circuit breaker (mm/kV) | ≥25、≥31 | |
21 | Circuit breaker weight (kg) | 1000 | |
22 | Rated short-circuit breaking current (kA) | 25/31.5 | |
Installation Diagram
Oil&Gas exploited
Automotive Manufacturing
Transportation & Dlistrlbutlon
Manufacture
Industrial Construction
Green Energy
Copyright ? 2024 All Rights Reserved
Back to top 
Comment
（0）