Vacuum Circuit Breaker MVP2-12 (ZN75)

This is modernized MVP2-12 (ZN75) 10kV vacuum circuit breaker with integrated handle with embedded poles

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Description

 

MVP2-12 (ZN75) type permanent magnet operating mechanism vacuum circuit breaker is a circuit breaker with quick split function developed by our company.

The vacuum circuit breaker of permanent magnet mechanism is installed indoors and air insulated. It is used to switch open and close various power loads of different properties.

It is suitable for urban power grid, rural power grid and other power grid construction and transformation projects, especially for frequent operation within the working current range and occasions with certain requirements for short-circuit breaking performance.

Parameters

 

Technical parameters

Item Unit Data
Rated voltage kV 12
Rated frequency Hz 50
Rated insulation level 1min power frequency withstand voltage kV 42/48
Lightning impulse withstand voltage 75/85
Rated current A 630(1000;1250)
Partial discharge value (14.4kV/1min) pC ≤5
Rated short-time withstand current kA 20(25;31.5)
Rated peak withstand current kA 50(63:80)
Rated short-circuit current duration S 4
Rated short-circuit current breaking times times 30
Rated thermal stability time S 4
Mechanical life times 10000
Rated energy storage voltage V AC/DC: 24V;48V;110V;220V
Rated closing and opening operating voltage V AC/DC:24V;48V;110V;220V

 

Mechanical parameters

Item Unit Data
Clearance between open contacts 8.5±0.3
Contact overtravel mm 2.5±0.5
O/C asynchronous ms ≤2
Contact closing bounce time ms ≤2
Phase distance mm (150;180;200;230;250;275;300)±1.0
Closing speed m/s 0.8±0.2
Opening speed m/s 1.6±0.2
Closing time ms ≤50
Opening time ms ≤15 (Inherent time less than 5)
Controller energy storage time s <5A

Solutions

 

MVP2-12 absorbs advanced technologies and processes at home and abroad. It has the characteristics of intelligence, high reliability, long service life and maintenance free. When used, it has no pollution to the surrounding environment. It is a green environmental protection product.