High Voltage Three Pole 220kv 330kv sf6 Gas Circuit Breaker

Lugao Power Co.,Ltd. has a specialized workshop dedicated to producing high-voltage SF6 gas circuit breakers. Its design technology is industry-leading. The LW series SF6 circuit breakers utilize a single-pressure arc extinguishing chamber and self-energized arc extinguishing technology, using sulfur hexafluoride gas as both an insulating and arc-extinguishing medium. A separate arc extinguishing chamber generates airflow during the opening process, cooling the arc and interrupting the current.

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Product Description

Product Introduction

The LW series self-energized SF6 circuit breakers are three-pole/single-pole AC 50Hz/60Hz outdoor high-voltage power transmission and transformation equipment used to open or shut off rated current, fault current, or switch lines, protecting, controlling, and operating power transmission and distribution systems. They can perform opening, shutting, and rapid automatic reclosing operations. Rated voltages range from 45kV to 330kV, and the core system consists of a support porcelain bushing, arc extinguishing unit, hydraulic/spring operating mechanism, and intelligent density controller. The independent arc extinguishing chamber generates compressed air flow during the opening process to efficiently cool the arc and interrupt the current. A fully enclosed gas circulation design ensures reliable operation in various environments. They feature a simple structure, easy and quick maintenance, low power consumption, low operating energy requirements, high reliability, easy installation, and low noise.

Specification

Type	Outdoor,porcelain bushing
Frequency	50Hz/60Hz
System operating voltage	132kV
Rated Voltage	145kV/220kV/330kV
Operating sequence	O-0.3s-CO-3min-CO
No of trip coils	2
No of closing coils	1
No of aux.contacts:	10NO,10NC
Quenching medium	SF6
Number of breaks per phase	1
Time taken by motor for charging the spring form fully discharged to fully charged position	<30Sc
Type of operating mechanism	Spring charging
Rated power frequency withstand voltage(at altitude less than 1000m)	325kV
Rated lightning impulse withstand voltage(at altitude less than 1000m)	750kV
Operating Mechanism	Single Pole,Three pole
Creep age Distance	31mm/kV
Rated interrupting current	31.5kA/3Sec
Rated normal Current	3150A
Rated short circuit making current	80kA peak