Box Type Opening And Closing Station

HWG Box Type Opening And Closing Station

HWG-12/24 series box-type switch station, also known as switch station. It is a distribution site that plays a switching role and is used to distribute electric energy; it is the link between the distribution power supply (110kV or 35kV substation) and the distribution network. It is an extension of the 10kV busbar of the distribution power supply, increasing the number of distribution power supplies. .

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Technical Parameters

ProjectsunitCompliant with
switch unit		Combination
electrical unit		circuit breaker unit
Rated voltagekV12/2412/2412/24
Rated frequencyA505050
Rated currentA630Depends on fuse current rating630
Rated insulation level
alternately and relativelykV42/6542/6542/65
lmin power frequency
withstand voltage		circuit breaker48/7948/7948/79
Control and auxiliary circuits222
Lightning impulse withstand voltagealternately and relatively75/12575/12575/125
circuit breaker85/14585/14585/145
Rated short-time withstand currentkA25/4s—25/4s
Rated peak withstand currentkA50—63
Mechanical lifeLoad switch/circuit breakerTimes5000 5000
Isolating/grounding switch 200020002000
inflation pressureRated inflation pressure
(gauge pressure at 20°C)		Mpa0.040.040.04
Minimum inflation pressure
(gauge pressure at 20°C)		 0.020.020.02
Gas relative leakage rate%≤0.01≤0.01≤0.01
Air box protection level IP67
Enclosure rating IP43

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