SF6 circuit breaker LW34-40.5 T630-20 outdoor load break switch 40.5KV

LW34-40.5/T630-20 outdoor slot storage series is a next-generation slot storage series developed by our company according to the state grid 1-2 state standard. The switchgear fully complies with national grid I and ii technical integration specifications. The switch is close to the wiring, the design is fair and the function is complete. Each indicator meets the requirements of the national electrical network integration I and ii. Sensors with unified parameters for electronic CT, electronic ration, CT and electronic volt that measure width, accuracy, reliability and low power precision in the complete model for precise detection of defects in the line.

product details

The circuit breaker is suitable for continuous outdoor operation in tropical areas with the following atmospheric characteristics:

Altitude: 2000m above means sea level

Pollution: Heavy saline atmosphere

Humidity: Up to 90%

Ambient temperatures of +30°C average, (+40°C Max. and -1°C Min.)

Technical parameter

Item	Unit	Data
Rated voltage	KV	35
Rated power frequency	Hz	50/60
Rated current	A	630
Rated power frequency withstand voltage (1min) KV	Isolating	95
Rated power frequency withstand voltage (1min) KV	To ground	95
Rated lightning impulse withstand voltage (1min) KV	Isolating	185
Rated lightning impulse withstand voltage (1min) KV	To ground	185
Rated short-time withstand current(3s)	KA	20
Rated short-circuit making current(peak)	KA	50
Phase to phase spacing	mm	340
Opening time	sec	＜2
Closing time	sec	＜2
Rated line-charging breaking current	A	25
Rated SF6 gas pressure(20℃)	Mpa	0.07
SF6 gas leakage rate(yearly)	Mpa	≤1%
Gas moisture content	ppm	≤150
Mechanism life	times	5000
Creepage distance	mm	372
Control system voltage	V	220DCV/ACV
Mass of filled SF6 gas	Kg	0.5
Mass of equipment	Kg	200
Dimension WDH	mm	14001200800