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Gas-insulated switchgear MGIS89-40.5

Description

Switchgear MGIS89-40.5 is a ring main unit for the secondary distribution network. MGIS89-40.5 can be supplied in 10 different configurations suitable for most switching applications in 35/40.5 kV distribution networks.

It is extendable and combined with the SafePlus concept, which is ABB’s flexible, modular compact switchgear, they represent a complete solution for 35/40.5 kV secondary distribution networks.

MGIS89-40.5 is a completely sealed system with a stainless steel tank containing all live parts and switching functions. A sealed steel tank with constant atmospheric conditions ensures a high level of reliability as well as personnel safety and a virtually maintenance-free system.

This product is in conformity with the standards of IEC62271-200, IEC62271-100, GB3804-2004, GB3906-1991, GB16926-1997, GB/T11022-1999.

Normal operating conditions:

Air temperature: -35+40°C; Daily average ≤25°C
Altitude above sea level: Maximum installation altitude: 4000m
Wind: less than 35m/s;
Earthquake intensity: no more than 8 degrees;

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Parameters

Main technical parameters:

Additional parameters:

MGIS89-40.5		C-module		F-module		v-module
		Switch disconnector	Earthing switch	Switch-fuse disconnector	Downstream earthing switch	Vacuum circuit-breaker	Earthing switch/ disconnector
Rated voltage	kV	36/ 40,5	36/40,5	36/40,5	36/ 40,5	36/ 40,5	36/ 40,5
Power frequency-withstand voltage	kV	70/95	70/95	70/95	70/95	70/95	7D / 95
-across disconnector	kV	80/ 110		80/110			80/110
Lightning inpulse withstand voltage	kV	170/185	170/185	170/185	170 /185	170/185	170/185
-across disconnector	kV	195/215		195/215			195/215
Rated normal current	A	630/ 630¹⁾		200/ 200²⁾		630/ 630¹⁾
Breaking capacities
-active load	A	630/ 630		200/ 200
-closed loop	A	630/ 630		200/ 200
-off load cable charging	A	20/ 21		20/21		50(Class Cl)
-earth fault	A	60/63		60/63
-earth fault cable charging	A	35/36		35/36
-transfer current	A			840/750
-shart-circuit breaking current	kA					20/20
Making capacity	kA	50/50	50/50		2,5/ 2,5	50/50	50/50
Class (Electrical endurance)		E3/ E2	E2/E2	-/-	E2/E2	E1/ E1	E2/E2
Short time current 1 sec.	kA	16/16	16/16		1/1	16/16	16/16
Short time current 1 sec.	kA	25/25	25/25			25/25	25/ 25
Short time current 3 sec.	kA	20/20	20/20			20/20	20/20
Internal arc classitication IACAFL,1s	kA	20/20		20/20		20/20

Standard configuration:

D unit configuration

See standard configuration and features of «Cable connecting module without earth switch module»

C unit configuration

See standard configuration and features of «Load break switch module»

F unit configuration

See standard configuration and features of «Load break switch and fuse combination module»

V unit configuration

See standard configuration and features of «Vacuum switch module»

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Solutions

The MGIS89-40.5 concept offers a choice of either switch-fuse combination or circuit-breaker with relay for protection of the transformer. MGIS89-40.5 can be supplied with an integrated remote control and monitoring unit.

Main sizes:

Standard module functions:

Module	Type function
C	Load break switch
F	Switch-fuse combination
VCB	3-position switch+VCB
M	Metering module
Sv	Bus bar section +VCB

Example for CCVC model:

Benefits of MGIS89-40.5 Ring Main Units:

RMU offer a comprehensive range of benefits designed to meet the rigorous demands of power distribution networks. These units are engineered to excel in various settings, ensuring consistent performance and safety. Key advantages include:

Durability and Environmental Resistance: Crafted with an outdoor-ready, fully insulated, and completely sealed structure, these units are built to withstand extreme environmental conditions, ensuring reliable operation in any setting.
Enhanced Safety Features: Equipped with a visible break indicator, these units allow for the easy verification of switch contact positions, significantly enhancing personnel safety by confirming isolation status before maintenance or operational tasks.
Compact and Efficient Design: Their small size, lightweight, and compact structure result in a minimal footprint, making them ideal for space-constrained applications.
Ease of Installation and Operation: Designed for simplicity, these units offer straightforward installation and user-friendly operation. Their reliability and maintenance-free design ensure uninterrupted service and reduced operational costs.
Innovative Linkage Structure: The inclusion of a triple-work linkage system effectively mitigates the risk of equipment malfunctions during operation, enhancing overall system reliability.

METTZ Group is an expert in the production of high-quality electrical equipment, specializing in the manufacturing of a complete set of transmission and distribution equipment within the 10-40.5kV range. The company is dedicated to providing reliable and stable products to its customers, including VCB, ACR, RMU, GIS, AIS, and LBS.

METTZ Group continuously introduces international advanced workmanship and equipment since its foundation, and widely cooperates and communicates with experts at home and abroad in technology. The company can supply custom OEM services such as Logo, custom size, or custom merchandise, etc., according to customer requirements.

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Gas-insulated switchgear MGIS89-40.5