China Zn63-12 Indoor High Voltage Vacuum Circuit Breaker Vcb

ZN63-12(VS1-12)indoor high voltage vacuum circuit breaker VCB for switchgear 12kV
This technical specification stipulate the requirement of ZN63-12(VS1-12)/T1250-31.5 model indoor AC HV vacuum circuit breaker in use condition, technical parameter,
design structure, test method, test rule, packing, transportation, and storage etc.
This technical specification is applicable for ZN63-12(VS1-12)/T1250-31.5 model indoor AC HV vacuum circuit breaker. This VCB can be used in indoor site
with three phases, 50Hz, rated voltage 12KV. It mainly serves in mineral enterprise,
power plant and substation for control and protection of electric equipment.
It can be installed both in trolley type switchgear and fixed type switchgear.
This VCB has merits of long life, easy maintenance, no pollution, no explosion, low noise etc,
and it is fit for use in stringent work condition with frequent operation etc.
VS1-12 indoor side-mounting AC and High-voltage VCB is a type of indoor switchgear applied to electric system of rated
voltage 7.2~12kV, three-phase 50/60Hz to protect and control apparatus.
It is especially appl icable in occasion with frequent operation; it can break short- circuit continuously. This HV VCB is of fixed mounting, mainly used in stationary
switch cabi net. It can work separately or in ring network power supply,
prefabricated substation as well as in non-standard power supply system.
Product Features:
1.Altitude: 1000m;
Ambient temperature: -25 ~+40 ;
Relative humidity: daily average 95 , monthly average 90 ;
Earthquake intensity: 8 degree;
Applicable occasions should free from inflammables, explosives, corrosives
Rated voltage(12kV)
Rated short-time P.F. withstand voltage(1min.)(42kV)
Rated lightning impulse withstand voltage(peak)(75kV)
Rated power frequency(50/60Hz)
10.Rated current(630,1250A)
Main technical data

ITEMUNITDATARated voltagekV12Rated currentA1250Rated frequencyHz50Rated insulation levelLightning impulse
withstand voltagePhase to phase,
phase to earthkV75Insulating distance
of contact851min power
frequency
withstand voltagePhase to phase,
phase to earth42Insulating distance
of contact494s rated short time withstand currentkA31.5Rated short circuit break current/31.5Rated peak value withstand current/80Rated short circuit making current/80Rated operation sequenceO-0.3s-CO-180s-COBreak times of rated short circuit currentTimes50Mechanical life
20000Break current of rated different phases earth faultkA27.4Break current of rated single capacitor bankA400Break current of rated back to back capacitor bank
400Rated open operation voltage/currentV/ADC(AC)220/1.1 DC(AC)110/2.2Rated making operation voltage/currentDC(AC)220/1.1 DC(AC)110/2.2Release work current of rated transient over currentA5Rated circuit of secondary circuitVDC(AC)220 DC(AC)110Rated voltage of energy storage motorDC(AC)220 DC(AC)110Rated output power of energy storage motorW50Energy storage times≤101min power frequency withstand voltage
of secondary circuitV2000Insulating distance of contactmm11±1Overtravel of contact3+1 0Center distance between different poles210±1Allow abrasion thick of contact3Average opening speedm/s1.2±0.2Average closing speed0.7±0.2Contact closing jump timems≤2Close/open synchronized of three phases≤2Main circuit resistanceμΩ≤55Opening timems25~60Closing time35~75Operation characteristic of operation mechanism65%~120% rated voltageReliable open/close≤30% rated voltageCan not open

about us
We are specialty on providing medium voltage and high voltage circuit breaker and switchgear
components, such as 12KV, 24 KV, 36KV and 40.5KV embedded cylinder,insulated
operating rod,auxiliary circuit socket,counter,circuit breaker board,vacuum circuit breaker
plastic panel,connection terminal,vacuum circuit breaker and so on.These components apply
on 630A, 1250A, 2500A, 3150A and 4000A VS1 (ZN85-40.5)Our Advantages
1. Strict quality control and excellent after-sales service.
2. Experienced staffs answer all of your question in fluent English.
3. Customized design is available. OME&ODM are welcomed.
4. Exclusive and unique solution can be provided to our customer by our well-trained and professional engineers and staffs