Overview
LW9-72.5/T2500-31.5 high-voltage sulfur hexafluoride circuit breaker is an outdoor three-pole AC 50Hz high-voltage electrical equipment, which is mainly used for the protection of power transmission and transformation lines and can also be used as a contact circuit breaker. The circuit breaker is assembled on a frame with three poles, so it can't be operated with one pole. Lw9-72.5/T2500-31.5 high-voltage sulfur hexafluoride circuit breaker meets the requirements of GB1984 High-voltage AC Circuit Breaker and IEC60056 High-voltage AC Circuit Breaker.
Environmental conditions for use
The ambient temperature is-30℃ ~+40℃ (the breaking current is 25kA at-45℃ ~+40℃).
The altitude does not exceed 1000m m.
The natural wind speed shall not exceed 35m/s.
The thickness of accumulated ice shall not exceed 10mm.
Earthquake ground acceleration does not exceed
A.horizontal acceleration of 0.4g
B.Vertical acceleration of 0.2g
The maximum daily temperature difference is 25℃
Performance characteristics
The circuit breaker uses SF6 gas as the arc extinguishing medium. The SF6 gas not only has good arc extinguishing performance, but also has excellent electrical insulation performance. The gas is compressed by the air pump and sprayed to the arc when it is opened, and the arc is extinguished. The circuit breaker has many advantages such as simple structure, good breaking performance and balanced operation. It is also an ideal switch for capacitor banks and reactor banks.
The circuit breaker with superior breaking performance can successfully break all kinds of abnormal short circuits, such as simultaneous grounding of two poles on both sides of the circuit breaker in reverse phase, near-field fault and other faults including the end fault of the circuit breaker.
The operation noise is small. Because the circuit breaker is sealed and isolated from the atmosphere, there is no noise of gas jet during operation.
Simple structure and compact size: The arc extinguishing chamber adopts a single break, and there is no other valve system, so the structure is very simple and compact.
The maintenance workload is small. Because of the simple structure and the small burning loss of the interrupter contact of the circuit breaker when it is opened in sulfur hexafluoride gas, the maintenance workload of the circuit breaker is small and the maintenance cycle is long.
Safe, reliable and pure sulfur hexafluoride gas is non-toxic and non-combustible, and the circuit breaker is safe and reliable in use because of the good sealing performance of the interrupter.
Appearance and installation dimensions
One Overview
LW9-72.5/T2500-31.5 high-voltage sulfur hexafluoride circuit breaker is an outdoor three-pole AC 50Hz high-voltage electrical equipment, which is mainly used for the protection of power transmission and transformation lines and can also be used as a contact circuit breaker. The circuit breaker is assembled on a frame with three poles, so it can't be operated with one pole. Lw9-72.5/T2500-31.5 high-voltage sulfur hexafluoride circuit breaker meets the requirements of GB1984 High-voltage AC Circuit Breaker and IEC60056 High-voltage AC Circuit Breaker.
Environmental conditions for use
The ambient temperature is-30℃ ~+40℃ (the breaking current is 25kA at-45℃ ~+40℃).
The altitude does not exceed 1000m m.
The natural wind speed shall not exceed 35m/s.
The thickness of accumulated ice shall not exceed 10mm.
Earthquake ground acceleration does not exceed
A.horizontal acceleration of 0.4g
B.Vertical acceleration of 0.2g
The maximum daily temperature difference is 25℃
Performance characteristics
The circuit breaker uses SF6 gas as the arc extinguishing medium. The SF6 gas not only has good arc extinguishing performance, but also has excellent electrical insulation performance. The gas is compressed by the air pump and sprayed to the arc when it is opened, and the arc is extinguished. The circuit breaker has many advantages such as simple structure, good breaking performance and balanced operation. It is also an ideal switch for capacitor banks and reactor banks.
The circuit breaker with superior breaking performance can successfully break all kinds of abnormal short circuits, such as simultaneous grounding of two poles on both sides of the circuit breaker in reverse phase, near-field fault and other faults including the end fault of the circuit breaker.
The operation noise is small. Because the circuit breaker is sealed and isolated from the atmosphere, there is no noise of gas jet during operation.
Simple structure and compact size: The arc extinguishing chamber adopts a single break, and there is no other valve system, so the structure is very simple and compact.
The maintenance workload is small. Because of the simple structure and the small burning loss of the interrupter contact of the circuit breaker when it is opened in sulfur hexafluoride gas, the maintenance workload of the circuit breaker is small and the maintenance cycle is long.
Safe, reliable and pure sulfur hexafluoride gas is non-toxic and non-combustible, and the circuit breaker is safe and reliable in use because of the good sealing performance of the interrupter.
Appearance and installation dimensions
