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MVnex smart medium-voltage switchgear

MVnex-12 armored withdrawable AC metal-enclosed switchgear (hereinafter referred to as switchgear) is suitable for indoor three-phase 50/60Hz, rated voltage 3.6～12kV power systems, used for receiving and distributing three-phase AC power and automatically closing and controlling the operating circuit, disconnecting fault (including overload, short circuit, overvoltage and other faults) protection, monitoring and event recording.

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Product Description

　　The MVnex-12 armored withdrawable AC metal-enclosed switchgear (hereinafter referred to as switchgear) is suitable for indoor three-phase 50/60Hz power systems with rated voltage of 3.6～12kV. It is used to receive and distribute three-phase AC power, and to automatically control the operation circuit, disconnect fault (including overload, short circuit, overvoltage, etc.), protection, monitoring and event recording; widely used in power plants, substations, metallurgy and chemical industry, rail transit, factories and mines, residential areas, high-rise buildings and other various places.

　　The design and manufacture of the switchgear fully comply with GB/T 3906 "3.6kV～40.5kV AC metal-enclosed switchgear and control equipment" and DL/T 404 3.6kV～40.5kV "AC metal-enclosed switchgear and control equipment", GB/T 11022 "Common technical requirements for high-voltage switchgear and control equipment" and DL/T 593 "Common technical requirements for high-voltage switchgear and control equipment" standards.

Technical Advantages

　　1. High technical parameters: Short-time withstand current can reach 12kV, 4000A-40kA; Seismic resistance grade can reach: (AG3) 8 degrees; Grounding switch short-time withstand high: 40kA/4s; Internal arc resistance grade can reach 40kA/1s;

　　2. It has circuit breaker cabinets, contactor cabinets and other special cabinet types; HVX solid-sealed pole vacuum circuit breakers and CVX solid-sealed pole vacuum contactors can be installed.

Technical Parameters

Parameter Name		Unit	Technical Data
Rated Voltage		kV	10
Maximum Operating Voltage		kV	12
Rated Insulation Level	1min Power Frequency Withstand Voltage	kV	Phase-to-phase and phase-to-ground 42/Open 48
Rated Insulation Level	Lightning Impulse Withstand Voltage	kV	Phase-to-phase and phase-to-ground 75/Open 85
Rated Frequency		Hz	50
Rated Current		kA	630、1250、2500、3150、4000
4s Short-Time Withstand Current		kA	20、25、31.5、40
Rated Peak Withstand Current		kA	50、63、80、100
Protection Level			The enclosure can reach IP41, and the circuit breaker compartment door open reaches IP2X
Partial Discharge		pC	13.2kV ≤20pC

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