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 |
