ZN85-40.5 Type Circuit Breaker Switch for 33kv Power Transmission Substations

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Truck Roller Type
• Structure: MCB
• Model NO.: ZN85-40.5/1250A-31.5kA
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
• Certification: VDE, ISO9001-2000, CE, CB, CCC
• Rated Voltage: 33/36/40.5kv
• Rated Frequency: 50/60Hz
• Truck Type: Vacuum; Isolation; Fuse.
• Ratd Current: 630A~2500A
• Power Frequency: 95kv
• Lightning Impulse: 185kv
• Distance of Phases: 300mm
• Transport Package: Non-Solid Wooden Case
• Specification: IEC: M2-E2-C2
• Trademark: Longxiang Electric
• Origin: Baoji, Shaanxi China
• HS Code: 8538900000
• Production Capacity: 17600 Sets/Year

Product Description

ZN85-40.5 Withdrawable Type Indoor High-voltage Vacuum Circuit Breaker

General Description
ZN85-40.5/T type indoor high voltage indoor vacuum circuit-breaker is used for switchgear KYN61-40.5(Z), it is most new type of power supply  and distribution equipment.This product is accordance with GB1984-2003 stand. This series include:Vacuum circuit breaker truck, isolation truck and fuse truck.

Structural characteristics:
1.This vacuum circuit breaker adopts compound insulation;it can meet air distance and creepage under normal run condition, 
   and it effectively reduce the dimension of VCB,the overall arrangement is reasonable and simple,with aesthetic appearance.
2.The operating mechanism is especially newly designed for this VCB,the outlet curve has good adaptation with requirements 
   of vacuum interrupters.It has high reliable with characteristics of long life and easy maintenance and free-maintenance for 
   operating mechanism.
3.This truck adopts screw rod nut push-in mechanism whitch can realize easy pushing-in or pushing-out from panel, compulsive mechanical 
   interlock way is adopted,meet the"Five Preventions"function;suitable for varies sit and the working sites which have rigorous run condition.
 
Applying ambient conditions
1.Ambient temperature:-15~+40ºC.
2.The height above sea level:≤1000m(besides the special requirements).
3.Relative humidity:the average humidity of a day should be no more than 95%; the average humidity of a month should be no more than 90%.
4.Saturated vapor pressure:the average pressure of a day should be no more than 2.2kPa; the average pressure of a month should be no more than 1.8kPa.
5.Earthquake intensity:not exceed 8 degrees.
6.It should be installed in the places without fire, explosion, serious filth, chemical erosion and violent vibration.



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