LW37-40.5 High voltage sulfur hexafluoride circuit breakerDetailed product description：

LW37-40.5 and LW37-40.5 (G) circuit breakers are outdoor installation, three-phase, AC 40.5kV high-voltage transmission and transformation control and protection equipment that use SF6 gas as insulation and arc extinguishing medium. The circuit breaker adopts the principle of self rotating arc extinguishing and belongs to the ceramic column sulfur hexafluoride circuit breaker. It adopts a three-phase split structure, with one break for each phase, which can be used to open and close rated current and fault current, switch capacitor groups, especially suitable for frequent operation, and can also be used as a contact circuit breaker.
The circuit breaker complies with standards such as IEC56 "High Voltage AC Circuit Breakers" and GB1984 "High Voltage AC Circuit Breakers".

Main technical parameters of LW37-40.5 high-voltage sulfur hexafluoride circuit breaker
Environmental conditions for use: altitude of 1000m, 3000m; Temperature+40 to -35 degrees (special requirements can reach up to 40 degrees)
Rated voltage: 40.5kV
Rated current: 1600A
Rated short-circuit breaking current: 25kA
Rated short-circuit breaking current breaking times: 25 times
Mechanical lifespan: 5000 cycles

Product features
1. Overall structure aspect
a) The circuit breaker is equipped with CT10A type spring operated mechanism, which can be installed in general type (parallel arrangement) and elevated type (middle hanging type), ensuring safe operation and convenient maintenance.
b) Circuit breakers are divided into plain type LW37-40.5 and plateau type LW37-40.5 (G) according to altitude.
2. In terms of technical performance
a) Adopting the self powered (rotary arc+thermal expansion) arc extinguishing principle, the circuit breaker requires less operating power (500-600J) for opening and closing, improving the mechanical performance of the product;
b) Adopting a built-in LR (B) -40.5 current transformer, the product is easy to install and debug, and occupies a small area;
c) The few sealing points ensure the sealing performance of the circuit breaker