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

ItemUnitData
Rated voltagekV12
Rated frequencyHz50
Rated insulation level1min power frequency withstand voltagekV42/48
Lightning impulse withstand voltage75/85
Rated currentA630(1000;1250)
Partial discharge value (14.4kV/1min)pC≤5
Rated short-time withstand currentkA20(25;31.5)
Rated peak withstand currentkA50(63:80)
Rated short-circuit current durationS4
Rated short-circuit current breaking timestimes30
Rated thermal stability timeS4
Mechanical lifetimes10000
Rated energy storage voltageVAC/DC: 24V;48V;110V;220V
Rated closing and opening operating voltageVAC/DC:24V;48V;110V;220V

 

Mechanical parameters

ItemUnitData
Clearance between open contacts8.5±0.3
Contact overtravelmm2.5±0.5
O/C asynchronousms≤2
Contact closing bounce timems≤2
Phase distancemm(150;180;200;230;250;275;300)±1.0
Closing speedm/s0.8±0.2
Opening speedm/s1.6±0.2
Closing timems≤50
Opening timems≤15 (Inherent time less than 5)
Controller energy storage times<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.