Gas-insulated metal-enclosed switchgear

Name: Gas-insulated metal-enclosed switchgear
Brand: Xinhong Electrical
Availability: InStock
Rating: 5 (1 reviews)

Service Conditions

Ambient air temperature: -40℃ ~ +40℃, daily temperature variation: not exceeding 35℃;

Altitude not exceeding 4000m (If the equipment operating altitude exceeds 1000m, please specify!);

Ambient air is not polluted by corrosive and/or flammable, explosive gases; installation site free from severe impact; pollution degree not exceeding Class Ⅲ as specified in GB/T5582;

Seismic intensity: 8 degrees;

Amplitude of electromagnetic interference induced in secondary systems does not exceed 1.6kV;

Special service conditions: If different from the above normal service conditions, the user shall consult with the manufacturer to reach an agreement.

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Description

Technical Features of the Product
1. Fully sealed structure with superior environmental adaptability
All live primary parts are completely sealed inside an SF6-filled tank pressurized at 0.04Mpa. Current entry/exit points all use touchable cable plug connectors. All live parts are in a fully sealed and insulated state, ensuring safe operation of this product even under harsh environmental conditions such as high-altitude regions, strong wind and sand, high salt fog, severe pollution, and severe humidity.

2. Compact product size, flexible expansion
Modular design scheme allows flexible common-tank combination of units. Tanks can be expanded arbitrarily to the left or right and can be dismantled individually, greatly accommodating the complex and diverse distribution design requirements of various regions.

3. Advanced design methods ensure product performance parameters
Utilizing computer 3D simulation technology for electric field simulation analysis, magnetic field simulation analysis, and mechanism motion simulation analysis ensures the accuracy of technical parameters.

4. Advanced welding and sealing technology
Stainless steel sheets for tanks are laser-cut and welded by ABB welding robots, fully ensuring sheet dimensional accuracy and welding quality. Equal-pressure vacuum extraction and nitrogen leak detection technology ensure tightness, achieving a measured SF6 gas annual leakage rate of 0.01%.

5. Advanced cleaning technology
Tanks are cleaned using ultrasonic technology, and product assembly is conducted in clean rooms, ensuring SF6 gas moisture content reaches below 150 ppm, surpassing national standard requirements.

6. Capable of intelligent online monitoring and protection
The switchgear can connect via communication networks and automation systems, enabling remote control, remote measurement, and remote signaling ("Three Tele" functions) of the switchgear. It can also achieve functions like fault isolation, restoration, and network reconfiguration for distribution networks.

7. User-friendly operation interface, comprehensive "Five Protections" design
The switchgear can achieve both manual and electric operation with simple and reliable procedures. The overall structure incorporates a comprehensive "Five Protections" interlocking design.

8. Dedicated cable branch box application solution
As distributed ring main unit applications become increasingly widespread, the XGHS6 series switchgear specially designs a solution where the busbar can achieve left/right outgoing lines via bushings. This is suitable for cable branch boxes with one or more load switches, providing users with flexible and economical distribution solutions.

Execution Standards

GB1984-2014 High-voltage alternating-current circuit-breakers (IEC 62271-100:2008 MOD);

GB1985-2004 High-voltage alternating-current disconnectors and earthing switches (IEC 62271-102:2002 MOD);

GB3804-2004 High-voltage alternating-current switches for rated voltages 3.6kV to 40.5kV (IEC62271-103:2013 MOD);

GB3906-2006 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6kV and up to and including 40.5kV (IEC 62271-200:2003 MOD);

GB16926-2009 High-voltage alternating-current switch-fuse combinations (IEC 62271-105:2002 MOD);

GB4208-2008 Degrees of protection provided by enclosure (IP Code);

GB8905-1996 Guide to the supervision, management and test of SF6 gas in SF6 electrical apparatus;

GB/T11022-2011 Common specifications for high-voltage switchgear and controlgear standards (IEC 62271-1:2007 MOD);

GB/T11023-1989 Test method for gas tightness of SF6 gas in high-voltage switchgear;

GB/T12022-2014 Sulfur hexafluoride for industrial use;

DLT404-2007 Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6kV and up to and including 40.5kV;

DLT593-2006 Common specifications for high-voltage switchgear and controlgear standards;

DUT791-2011 Guide for selection of indoor AC gas-insulated switchgear cubicle;

JB8738-1998 Vacuum interrupters for AC high-voltage switches of 3.6kV～40.5kV.