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Metal-Enclosed Switchgear

Name: Metal-Enclosed Switchgear
Brand: Zhejiang Tenrony Electricity Co., Ltd.
Availability: InStock

Box-type fixed AC metal-enclosed switchgear (hereinafter referred to as switchgear) is suitable for 3.6~12 KV three-phase AC 50Hz systems as a device for receiving and distributing electrical energy. This metal-enclosed switchgear is suitable for places with frequent operations and for the renovation of switchgear equipped with oil switches. A metal enclosed switchgear busbar system is a single busbar system and a single busbar sectioning system.

Our high voltage switchgear for sale complies with and meets the requirements of GB/T 3906-2020, DL404-2018, and the international standard IEC62271-200:2003. The metal-enclosed switchgear is aesthetically pleasing, compact in size, and has a complete and reliable anti-misoperation function.

Products

Features

Box-type fixed metal-enclosed switchgear, the cabinet frame is welded with angle steel, and the cabinet is divided into circuit breaker room, busbar room, cable room, and relay room, etc. The rooms are separated by steel plates.

Diagram

When placing an order, the user must specify:

The main connection scheme and single-line system diagram.

The secondary circuit wiring principle diagram and the terminal arrangement diagram. If there is no terminal arrangement diagram, metal enclosed switchgear shall be supplied in accordance with the manufacturer's regulations.

The model, specification, and quantity of the electrical components in the switch cabinet.

The material and specification of the main busbar and branch busbar. Otherwise, metal enclosed switchgear will be supplied in accordance with the manufacturer's regulations.

If the switch cabinet is to be used in special environmental conditions, this should be stated when placing the order.

When accessories and spare parts are required, metal enclosed switchgear types and quantities should be specified.

The external structure diagram of the high-current overhead incoming line cabinet

Diagram of Metal-Enclosed Switchgear

Dimensions and structural diagram

Busbar compartment
2Pressure relief channel
Instrument compartment
Combined switch compartment
Manual operation and interlocking mechanism
Main switch compartment
Electromagnetic or spring operating mechanism
Ground busbar
Cable compartment

Parameters

Main technical parameter
Rated Parameters of Switchgear Cabinets
Name		Unit	Numerical
Rated Voltage		kV	40.5
Rated current		A	630,125,016,002,000
Rated short-circuit breaking current		kA	25,31.5
Rated short-circuit closing current		kA	63,80
Dynamic stability current (peak)		kA	63,80
4s Thermal Stability Current(effective value)		kA	25,31.5
Rated insulation level	lightning impulse withstand voltage	kV	185
Rated insulation level	Main circuit 1min power frequency tolerance	kV	95
Dimensions(W×L×H)	MatchZN23	m	1918 × 3600 × 3100
IP Grade	Shell/Interior		IP3X/IP2X

Vacuum Circuit Breaker Rated Parameter
Name		Unit	Numerical
Rated voltage kV		kV	40.5
Rated current A		A	125,016,002,000
Rated short-circuit breaking current		kA	25,31.5
Rated short-circuit closing current		kA	63,80
Dynamic stability current (peak)		kA	63,80
4sThermal stablity current(peak)		kA	25,31.5
Rate insulation level	lightning impulse withstand voltage	kV	kV
	Main circuit 1min power frequency tolerance
Rated frequency		Hz	50
Rated operating sequence			O-0.3s-CO-180s-CO
Mechanical life		times	10000
Closing time		ms	50~100
Opening time		ms	35~60

Benefits

Mechanical interlocks: To prevent the opening and closing of the disconnector under load, to prevent the incorrect opening and closing of the circuit breaker, to prevent entering the live compartment by mistake, to prevent closing the grounding switch when live, and to prevent closing the switch with the grounding knife in place, the switch cabinet adopts corresponding mechanical interlocks.

Use

Operating environmental conditions

Ambient temperature: upper limit +40℃, lower limit -25℃;
Altitude: not exceeding 1000m;
Relative humidity: daily average not greater than 95%; monthly average not greater than 90%;
Seismic intensity: not exceeding 8 degrees.
Surrounding environment: no fire, explosion hazards, pollution level not exceeding grade 3, chemical corrosion, and severe vibration.