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Armoured Middle-Mounted Metal Enclosed Switchgear

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

The indoor AC metal-enclosed medium-voltage switchgear (hereinafter referred to as "the switchgear") is a fully integrated set of distribution equipment designed for use in 3.6–12 kV three-phase AC 50 Hz single-busbar segmented systems. Our high voltage switchgear for sale is primarily employed in power plants, for the power supply of small- and medium-sized generators, in industrial and mining enterprises for power distribution, in secondary substations of power systems for power reception and distribution, and for the control, protection, and monitoring of large high-voltage motor startups.

Products

Features

ac metal enclosed switchgear has perfect interlocking functions:

Prevent pushing or pulling the circuit breaker trolley under load;

Prevent misoperation of the circuit breaker.

Prevent closing the grounding switch when the circuit breaker is closed;

Prevent entering the live compartment by mistake.

Do not close the grounding switch when the circuit is live.

Strong compatibility:

AC metal enclosed switchgear can be equipped with domestic VS1 vacuum circuit breakers produced by major domestic manufacturers.

AC metal enclosed switchgear can be equipped with ABB's VD4 vacuum circuit breakers.

Outstanding performance: AC metal enclosed switchgear belongs to a high-performance distribution device.

Parameters

Main Technical Parameters
Rated Voltage(kV)				03/6/10
Maximum Operating Voltage(kV)				3.6/7.2/12
Power Frequency Withstand Voltage(kV)				42(1min)
Impulse Withstand Voltage(kV)				75
Rated Frequency				50Hz
Rated Current(A)				630-3150
Rated Thermal Stability Current(kA/4s)				16-50
Rated Dynamic Stability Current(kA)				40-125
Rated Short-Circuit Breaking Current(kA)				16-50
Rated Short-Circuit Making Current(kA)				40-125
Rated DC Voltage for Opening/Closing Switch and Auxiliary Circuits				24,30,48,60,110,220,AC110,220
Protection Class				IP4X
△Technical data for VSI and VD4 vacuum circuit breakers are shown in the table below:

Items		Unit	VSI	VD4
Rated Voltage		kV	3 6	10
Maximum Operating Voltage		kV	3.6 7.2 12
Rated Insulation	Power Frequency Withstand Voltage for1minute	kV	42
Level	Lightning Impulse Withstand Voltage	kV	75
Rated Frequency		Hz	50
Rated Current		A	630,1250,1600,2000,2500,3150,
Rated Short-Circuit Breaking Current(RMS)		kA	16,20,25,31.5,40,50
4S Thermal Stability Current(RMS)		kA	16,20,25,31.5,40,50
Rated Dynamic Stability Current(Peak)		kA	40,50,63,80,100,125
Transient Recovery Voltage Rate		kV/ms	0.345	0.415
Peak Transient Recovery Voltage		kV	20.6	30
Rated Operation Sequence			分-0.3S-合分-180S-合分
Automatic Reclosing Operation Sequence			分-0.3S-合分-3min-合分
Multiple Reclosing Operation Sequence			分-0.3S-合分-15S-合分-15S-合分
Closing Time		ms	100	70
Opening Time		ms	20	45
Arcing Time		ms	15	15
Breaking Time		ms	65	60

The schematic diagram of the switchgear structure
A.Busbar Compartment B.Circuit Breaker Trolley Compartment C.Cable Compartment D.Relay and Instrument Compartment 1.1 Pressure Relief Device 1.2Control Cable Tray 1. Enclosure 2. Branch Busbar 3. Busbar Sleeve 4. Main Busbar 5. Static Contact Device 6. Static Contact Box 7. Current Transformer 8. Grounding Switch 9. Cable 10. Surge Arrester 11. Grounding Main Busbar 12. Removable Partition 13. Partition (Live Door) 14. Secondary Plug 15. Circuit Breaker Trolley 16. Heating Device 17. Withdrawable Horizontal Partition 18. Grounding Switch Operating Mechanism 19. Base Plate

The Outline Dimensions of the Switchgear

Cabinet Width	Cabinet Depth	M	N	L	Switchgear Base Installation Diagram
800	1500 Cable	630	800	1450
	1660 Overhead			1610
1000	1500 Cable	830	1000	1450
	1660 Overhead			1610

Cabinet Width	Cabinet Depth	L1	L2	L3	Switchgear Installation Dimension Diagram

800	1500 Cable	530	630	800
	1660 Overhead
1000	1500 Cable	730	830	1040
	1660 Overhead

Cabinet Depth	L	Switchgear Installation Dimension Diagram
1500	1450
1660	1610

Benefits

Operating Environment Conditions

Normal Conditions

A.Ambient Air Humidity: Upper Limit,+40℃; Lower Limit,-10℃

B.Altitude:≤1000M

C.Relative Humidity:Daily average relative humidity not exceeding95%,monthly average relative humidity not exceeding90%

D.Seismic: Intensity not exceeding8°

E.The surrounding air should not be affected by corrosive or flammable gases, water vapor, or other significant contaminants,

F.There should be no severe pollution or frequent intense vibrations. The design under harsh conditions must meet Class 1 requirements.

Special Operating Conditions:

*When used under environmental conditions exceeding those specified in GB3906-2006, the user and the manufacturer should negotiate.

Use

Armoured metal AC fixed enclosed switchgear is suitable for 12kV single busbar systems and can be used independently or in conjunction with ring main units. This type of switchgear features a compact structure and advanced, reliable performance, making it an economical and practical power distribution device. AC metal enclosed switchgear is widely used in urban distribution switch stations, user terminals, such as secondary substations, industrial and mining enterprises, high-rise buildings, large residential areas, etc. Standards compliance: GB3906-1991 3-35kV AC metal-enclosed switchgear IEC298 1990 AC metal-enclosed switchgear and controlgear for voltages above 1kV and up to 52kV

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