What Are the Order Requirements for VS1 Fixed Vacuum Circuit Breakers?
2024-09-11 10:51:54
What issues should we pay attention to when ordering?
1. Clarifying distance between phases.
The size of switchgear determines the size of VS1 vacuum circuit breaker. For example, when switchgear width is 750 mm or 800 mm, the distance between phases is generally 210 mm. If switchgear width is less than 650, generally we need vacuum circuit breakers with a distance between phases of 150mm. Therefore, we must specify the distance between phases when ordering.
2. Clarifying rated current
The rated current of VS1 vacuum circuit breaker is a very important parameter. It will not only determine price of VCB, but also determine whether VCB can meet the requirements of switchgear.
3.Clarify breaking short-circuit current
The parameter of breaking short-circuit current will also affect the VCB's price, and it determines whether VCB meets the requirements of switchgear.
4.Clarifying functional requirements of VS1 fixed circuit breaker
Whether VS1 fixed vacuum circuit breaker is equipped with anti-jumping, latching, overcurrent (this protection is rarely used now), loss of voltage, undervoltage and other functional requirements, please specify when ordering.
5.Clarifying extension of the main shaft of VCB
Does main shaft extend to the left or right, and how much does it extend? It mainly determines interlock device of high-voltage switchgear.
6.Clarifying whether VS1 VCB has an interlock device
Does VCB have an interlock? Does the interlock extend to the left or right? How much does it extend? It also depends on the five prevention requirements of switchgear.
7.Clarifying type of poles
Before placing an order of fixed type of VS1 vacuum circuit breaker, it is necessary to clarify whether need assembly poles or embedded poles.
8.Clarifying rated voltage
Rated voltage is an important parameter, so we put it at the end. The larger the rated voltage, the larger its distance between phases, and the greater the width of switchgear. Generally, the pole distance of 12KV VS1 VCB is 150MM-210MM, while the pole distance of 24KV VS1 VCB will be greater than 275MM.
The above are the knowledge points that we need to know when ordering VS1 fixed vacuum circuit breakers.