Fixed Type Indoor VCB

In today's power distribution systems, for voltage levels of 10kV and above, the withdrawable type has become the absolute mainstream choice due to its significant advantages in operation, maintenance and safety. While the Fixed Type Indoor VCB is more commonly used in scenarios with specific budgets or limited space. Taili can offer this affordable solutions for you, contact our factory today!

Main structural features

1. Fixed installation: The circuit breaker body is a permanent component of the switch cabinet.

2. Main circuit connection: The upper and lower input and output terminals of the circuit breaker are directly fixedly connected to the busbar and output terminals of the switch cabinet through busbars or cables.

3. Isolation method: Since it cannot be moved, an independent isolating switch (usually a visible, clearly broken blade switch) must be equipped to form a visible and safe electrical isolation point after the circuit breaker is tripped, allowing for maintenance of downstream equipment.

4. Operating mechanism: The same spring operating mechanism (electric or manual) is used, but the mechanism is part of the fixed part of the circuit breaker.

5. Secondary wiring: Control, signal, and power lines are directly connected through terminal blocks instead of using plug-in connectors as in the handcart type.

Product application

Due to its economic nature and simple structure, the Fixed Type Indoor VCB is commonly used for:

· User terminal substations with low requirements for power supply continuity.

· In cases where the incoming lines or busbar tie switches are operated infrequently.

· Some projects with limited budget.

· In the high-voltage room of box-type substations, due to space constraints, a fixed structure is also often adopted.

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