Vacuum circuit breaker VVR-10-20/630A U3

Series VVR-10-20. Switches with a built-in spring-motor drive are designed for switching electrical circuits under normal and emergency modes in three-phase alternating current networks with an isolated neutral frequency of 50 Hz with a rated voltage of 10 kV. They are installed in cabinets of complete switchgear switchgears, and are also used to replace low-oil and electromagnetic switches. Advantages of the VVR-10-20/630 switch · Availability of mechanical switching. · Availability of current electromagnets allowing the use of circuits with de-shunting. · The presence of a shutdown electromagnet with autonomous power supply, which allows you to shutdown in any abnormal situation. · The use of relay blocks operating on current circuits allows for shutdown without auxiliary power. · For the VVR-10 switch there is no need for additional power supplies, control units, etc. Everything is built into a single housing. Product warranty is 5 years. Technical characteristics Rated voltage, kV 10 Rated shutdown current, kA 20 Rated current, A 630 Highest operating voltage, kV 12 Upper operating air temperature value, t, C0 + 55 Lower operating air temperature value, t, C0 - 60 Total shutdown time to , s, no more than 0.05 Own shutdown time to, s, no more than 0.03 Own switching time, tbc, s, no more than 0.05 Dynamic resistance current, kA 51 Short-term test voltage (one minute) of industrial frequency, kV 42 Full lightning impulse test voltage, kV 75 Switching life without replacing the vacuum arc-extinguishing chamber (VAC) At rated current, cycles "V - tp - O" 50,000 At rated shutdown current, cycles "V - O" 100 Established trouble-free operating time, cycles "V - tp - O" 20,000 Service life before write-off, years, not less than 30 Rated voltage of control electromagnets YAT, YAC, YAV and motor, V AC 110 / 220 DC 110 / 220 Versions of vacuum circuit breakers of the VVR-10 series : Name interfacial distance VVR-10-20/630a UHL2, 100V, 50Hz (015-08) 150mm VVR-10-20/630A UHL2, 220V, 50Hz (015-08) 150mm VVR-10/630A UHL2, 100V , 50Hz (017-08) 180mm VVR-10-20/630A UHL2, 220V, 50Hz (017-08) 180mm VVR-10-20/630A UHL2, 100V, 50Hz (028-09) 200mm VVR-10-20/ 630A UHL2, 220V, 50Hz (028-09) 200mm