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منزل > مركز المنتج > Switchgear Fittings > Chassis Truck > DPC-3A-800 Chassis Truck Vd4 Match Mid Door Interlock KYN28A High Voltage Switchgear Fittings

DPC-3A-800 Chassis Truck Vd4 Match Mid Door Interlock KYN28A High Voltage Switchgear Fittings

    DPC-3A-800 Chassis Truck Vd4 Match Mid Door Interlock KYN28A High Voltage Switchgear Fittings

    The DPC-3A-800 Chassis Truck is a Vd4 standard high voltage switchgear fitting designed with a mid door interlock for KYN28A systems. Engineered for safety, durability, and precise integration, it ensures reliable operation, smooth installation, and secure earthing. Ideal for industrial power distribution and high voltage applications requiring robust performance.
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Chassis Truck is primarily designed to support circuit breakers, transformers, and other components in withdrawable switchgear. It facilitates the pushing and extraction of the chassis. As an auxiliary operation, it connects components and busbars. When operated with the internal mechanism of the circuit breaker and the interlock mechanism of the mid-placed cabinet, it meets the interlock requirements of the “5 Preventions” stipulated in GB3906. The specific functions are as follows:


The circuit breaker can only be closed when the handcart is in the testing, isolating, or working position. When the handcart is in the locked state, this prevents misconnection and mismatched isolation contacts with the load.


If the handcart is in the working position or moves 110mm away from the testing/isolating position, the earthing switch fails to close, thus avoiding unintentional operation of the switch.


When the earthing switch is closed, the handcart cannot shift from the testing/isolating position to the working position, preventing the circuit breaker from closing inadvertently.


Once the chassis enters the cabinet and moves away from the testing/isolating position, the handcart cannot be drawn out of the cabinet.


DPC Chassis truck definition


High Voltage Switchgear Fittings


Lock plate of the chassis truck


High Voltage Switchgear Fittings



Note: There are five types of lock plates available for selection. The standard specification is 8B.141.012. If you require any of the other four lock plates, please specify your choice when placing the order.

Drawing


High Voltage Switchgear Fittings


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