24kv 630A Indoor Draw-out Type Vacuum Circuit Breaker
- 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: 3
- 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
1. Ambient temperature: -10º C~+40º C.
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.