12kv High Capacity Vacuum Circuit Breaker (With Drawable)
- Model NO.: vd4
- Operation: Energy-storage Type
- Arc-extinguishing Medium: Vacuum
- Structure: Embedded Pole Interrupter
- Type: Circuit Breaker
- Certification: VDE, ISO9001-2000, CCC
- Specification: Iec62271-100
- HS Code: 85389000
- Breaking Capacity: High Voltage Circuit Breakers
- Speed: Normal Type Circuit Breaker
- Installation: Insert
- Poles Number: 4
- Function: Circuit-Breaker Failure Protection
- Trademark: Shanghai Electric
- Origin: Shanghai
Vacuum circuit-breakers have particular advantages for use in networks where there is a high switching frequency in the working current range and/or where a certain number of short-circuit Breaking operations are expected. Type VD4 vacuum circuit-breakers are suitable for autoreclosing, and have exceptionally high operating reliability and long life.
The vacuum circuit-breakers of type VD4, designed in column form, can be supplied both as individual units for switchgear Type ZS1, AMS, Unigear, KYN28, etc.
Applying ambient conditions
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 vapour 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.