Vacuum Circuit Breaker (Outdoor,FZW20A-12 Series)

Detailed Product Description

Vacuum Circuit Breaker (Outdoor,FZW20A-12  Seires)

 

General

ZW20A-12 type outdoor high voltage boundary switch (hereinafter called beaker for short ) is a three phase 50Hz outdoor power distribution equipment with rated voltage of 12KV. Manily used for breaking and closing of load current , overload current and short circuit current , zero sequence current in electric power system , it is applied for protection and control of power distribution system in substation and industrial and mining enterprise , especially for rural power network and places requiring frequent operation . This product is equipped with controller , for its control method 1FDR-01 palm computer , 2FDR-02(GSM type), with single phase earthing and short circuit protection functions , which meets the requirement of poer distribution automatization , and can finish the work of traditional recloser reliably and effectively .

This installation and operation instruction contains contents of main technical parameter of circuit breaker , produnt structure , principle and method of installation , operation and maintenance , etc.

Normal working environment

1 Ambient air temperature : -4040daily temperature difference : 25 ;

2 Altitude :≤3000m ;

3 Wind speed : ≤35m/s ;

4 the place where it is used is free from fire , explosion , chemical corrosion and intense vibration .

Main Technical Parameter

Item	Unit	Parameter
Rated voltage	KV	11,12
Rated current	A	630,800,1000,1250
Rated Frenquency	Hz	50
Rated short-circuit interrupting current	KA	12.5,16,20,25
1 min power frequency withstand voltage	KV	42
lightning impuslse withstand voltage	KV	75
Switch on time	ms	≤45
Switch off time	ms	≤45
Mechanism lifetime	times	10000
Rated power of the energy storage motor	KW	0.04
Rated voltage of the energy storage motor	V	AC220