When selecting a complete set of high-voltage switchgear, the following key factors must be comprehensively considered:
Rated Voltage and Current
The rated voltage of the high-voltage switchgear must be compatible with the specific power system; common voltage levels include 10kV, 35kV, and others. The rated current must be sufficient to meet load requirements, thereby preventing equipment damage caused by overloading.
Protection Class (IP Rating)
The protection class (e.g., IP4X) determines the equipment's resistance to dust and water ingress. In humid or dusty environments, switchgear enclosures with a higher protection class should be selected to ensure stable, long-term operation.
Circuit Breaker Type
One of the core components of high-voltage switchgear is the circuit breaker; common types include vacuum circuit breakers and SF6 circuit breakers. Vacuum circuit breakers are suitable for applications involving frequent switching operations, whereas SF6 circuit breakers offer superior advantages in terms of high-current breaking capacity.
Level of Intelligence
Modern complete sets of high-voltage power distribution cabinets are increasingly evolving toward greater intelligence, incorporating features such as remote monitoring and fault diagnosis. Although the initial investment for intelligent equipment is relatively high, it can lead to reduced operation and maintenance costs in the long run.
