15kv/27kv/38kv Indoor Fixed or Drawable Vacuum Circuit Breaker

ZN63A-12/Indoor AC Medium-voltage Vacuum Circuit BreakerZN63A-12(VS1) Indoor AC medium voltage vacuum circuit-breaker serves in the three-phase AC power system for rated voltage of 10kV and rated frequency of 50Hz to switch various kinds of loads in frequent operation places and can be used to protect and control electrical equipment in the industrial & mineral enterprise and power plant and substation as well. It can be matched with the KYN28A-12(GZS1) middle-arranged switchgear or XGN-stationary switchgear as well. The circuit-breaker conforms to the national standards of GB1984 Alternate current high-voltage circuit breaker , JB3855 Indoor alternate current high-voltage vacuum circuit breaker for rated voltage from 3.6kV to 40.5kV and DL/T403 Ordering specifications for indoor high-voltage vacuum circuit breaker for rated voltage from 12kV to 40.5kV , and international standard of IEC High-voltage alternate current circuit breaker . Rated short circuit breaking current Rated current Operating mechanism code (T means spring operating mechanism) Rated voltage Design Number Indoor Vacuum circuit breaker Note: The original type of the product is Vs1:Ambient air temperature: -25 ~+40 3.2 Relative humidity: Daily average value is not more than 95%; Monthly average value is not more than 90%;Daily average value of saturated water vapor pres -sure is not more than 2.2kPa Monthly average value of saturated water vapor pres -sure is not more than 1.8kPa Altitude : 2000m and below Earthquake intensity: No more than magnitude 8No operating in such position as subject to flamm able gas, explosive danger, chemical corrosion and violent vibrationThe arrangement of arc-extinguishing chamber of circuit-breaker and operating device adopts front and rear layout which makes them integrate with driving device to assure unsplit coordination perform ance of circuit-breaker.The adoption of middle-sealing porcelain vacuum arc-extinguishing chamber, copper-chromium material for contact and contact configuration featuring axial Magnet field forms most advanced arc-extinguishing mode.The vacuum arc-extinguishing chamber is fitted in side the insulating cylinder formed by the latest technology of APG, which not only reduces the overall dimension of circuit-breaker but prevents foreign substance from damaging circuit-breaker and surface pollution.The main technical parameters of the breaker see table 1. table 1  No. Name Unit Data Data Data Data Data Data  1 Rated voltage kV 12 12 12 12 12 12  2 Rated current A 630, 1250 630, 1250 630, 1250, 1600 1250, 1600, 2000 2000, 2500, 3150,4000, 5000 3 150 4000 5000  3 Rated insulation level 1min power frequency withstand voltage kV 42 42 42 42 42 42  Rated lightning impulse withstand voltage kV 75 75 75 75 75 75  4 Rated short-circuit breaking current kA 16 20 25 31.5 40 50  5 Rated short-circuit making current (peak value) kA 40 50 63 80 100 130  6 Rated peak withstand current kA 40 50 63 80 100 130  7 Rated short-time withstand current kA 16 20 25 31.5 40 50  8 Break times of rated short-circuit making current Times 50 50 50 50 30 20  9 Rated duration of short-circuit s 4 4 4 4 4 4  10 Rated operating sequence  O-t-CO-180s-CO* O-t-CO-180s-CO* O-t-CO-180s-CO* O-t-CO-180s-CO* O-t-CO-180s-CO* O-t-CO-180s-CO*  11 Mechanical endurance Times 20000 20000 20000 20000 10000 10000  12 Rated single capacitor bank breaking current A 630 630 630 630   13 Rated back-to-back capacitor bank breaking current 400 400 400 400   *16kA, 20kA, 25kA, 31.5kA t=0.3s 40kA t=180s    Stored energy motor Stored energy motor adopts permanent-magnet DC motor. See table 2 table 2  Model Rated voltage(V) Rated output power(W) Normal working voltage range(V) Stored energy time under rated voltage(s)  ZYJ55-1 DC110 DC220 70 85%~110% rated voltage 10   Operating voltage of AC or DC is available   Technical parameters of opening, closing coils . See table 3. table 3  Closing coil Opening coil Remarks  Rated operating voltage(V) DC220 AC220 DC110 AC110 DC220 DC110 AC220,AC110,30VDCNo opening subject to the operating voltage of opening coil below 30% of rated operating voltage. Coil power(W) 368 368 Normal working voltage range AC 85%~110% Rated voltage DC 80%~110% Rated voltage AC 85%~120% Rated voltage DC 65%~120% Rated voltage   /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1