Switchgear K-359

KRU is a high voltage unit cell , consisting of individual metal cabinets, United corridor maintenance and interconnected with bolted connections.
Switchgear is designed for bilateral service. Unit switchgear consists of a high-voltage part, mounted on a rigid frame, and service corridor, closed metal protective the sheath. Containment unit KRU performance F1 has a dual walls with insulating elements of non-combustible insulation.
The high-voltage portion of the block separated partitions into cells (cases), which posted high voltage equipment and auxiliary equipment circuits. High-voltage equipment housed in a compartment of the sliding element 2, the compartment I / o 3 and compartment busbar 4.
In the compartment retractable element are vacuum switch mounted on a wheeled trolley, protective curtains, closing access to power live parts of the switchgear when the overrunning pull-out element the repair position, guides the sliding element and its nodes and ground fixation in the working position and the test position.
In the compartment I / o posted by transformers current, earthing switch and zero current transformers sequence. On the roof of cells made redundant relief valves the pressure of the high-voltage compartments in the event of an arc.
- Busbar compartment is located in the lower part high-voltage Cabinet. The equipment of auxiliary circuits relay is placed in the compartment 5. The relay compartment has a door that locked. The retractable facade element is the facade of the high-voltage Cabinet. To access the compartment input-output and-busbar compartment on the rear side of the Cabinet is provided by a door, fixed by bolts.

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