Vacuum Circuit Breaker (Outdoor,ZW6-12 Series)

Detailed Product Description

Vacuum Circuit Breaker (Outdoor,ZW6-12  Series)

General

ZW6-12 outdoor HV vacuum breaker (short for breaker )is a kind of outdoor HV switching devices used in three phase AC 50Hz , 12kv . it is used for breaking and making load current , overload current and short circuit current in power systems , especially in the case of frequently operation .

Matching with CT23 spring operating machanism , the breaker can realize electric or manual energy storage and electric swith on/off .

Based on customs requirements , 100/5, 200/5, 400/5 or 600/5 current transformer can be installed into the breaker .

The JSZR-10w dry voltage transformer is built in . and with fuse protection more , it realizes own rig net opearting power and provides operating power for reclosers or telemechanics terminals .

With right control systems , it can be a recloser or sectionalizer. It is an ideal choice for city and country electric network non-oil rebuild .

Normal working environment

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

2 Altitude :≤2000m (if the place is at higher altitude , enhance rated insulation level , it should be custom-made for 2000m );

3 Wind pressure : ≤700Pa(Equivalent to wind speed 34m/s);

4 Earthquake intensity : ≤;

Main Technical Parameter

Item	Unit	Parameter
Rated voltage	KV	12
Rated current	A	630	1250
Rated Frenquency	Hz	50
Rated short-circuit interrupting current	KA	12.5	16	20	25	31.5
1 min power frequency withstand voltage	KA	42	48
Rated lightning impulse withstand voltage	KA	75	85