GN30-12 Series Indoor HV Rotary Disconnect Switches
Technical specification
|
Item |
GN30-12/400-12.5 |
GN30-12/630-20 |
GN30-12/1000-31.5 |
GN30-12/1250-31.5 |
|
|
GN30-12D/400-12.5 |
GN30-12D/630-20 |
GN30-12D/1000-31.5 |
GN30-12D/1250-31.5 |
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|
Rated KVoltage(KV) |
2 |
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|
Rated Current(A) |
400 |
630 |
1000 |
1250 |
|
|
Rated short-time withstand current(KA) |
12.5 |
20 |
31.5 |
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Rated short-circuit duration(S) |
4 |
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|
Rated peak withstand current(KA) |
31.5 |
50 |
80 |
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|
Rated insulting level |
Lightning impulse withstand voltage(KV) |
Phase to phase/to earth:75、across open contacts:85 |
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|
1 min.PF withstand voltage(KV) |
Phase to phase/to earth:42、across open contacts:48 |
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Product Model
Dimension
|
GN30-12 |
GN30-12D/1250 |
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|
400A 630A |
1000A |
1250A |
400A 630A |
1000A |
1250A |
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|
A |
C |
A |
C |
A |
C |
A |
B |
C |
A |
B |
C |
A |
B |
C |
|
~560 |
~315 |
~580 |
~332 |
~580 |
~295 |
~550 |
~610 |
~240 |
~575 |
~615 |
~245 |
~580 |
~600 |
~295 |
Product Functions
◆Rotary Disconnection: Uses a rotating contactor between upper and lower insulator platforms for no-load circuit making and breaking.
◆Visible Circuit Isolation: Provides clear physical disconnection for safe maintenance on de-energized circuits.
◆Integrated Earthing Option (M Version): GN30-12M adds an earthing knife for enhanced maintenance safety.
◆Voltage Withstanding: Maintains dielectric strength across open contacts, ensuring complete isolation from live systems.
◆Flexible Integration: Can be installed inside high voltage switchgear cabinets or used as a standalone device.
Applicable Environment
◇Rated System: Suitable for 10kV, 50Hz AC indoor power systems (and lower voltages).
◇Temperature Range: Reliable operation in ambient temperatures from -10℃ to +40℃.
◇Installation Altitude: Designed for elevations up to 1000 meters.
◇Humidity Tolerance: Withstands monthly average humidity ≤90% and daily average ≤95%.
◇Seismic Resistance: Capable of withstanding earthquake intensity up to 8 degrees.
◇Air Quality: Suitable for locations free from serious dust, chemical substances, explosives, and recurrent severe vibration.
Product Highlights
◆Innovative Rotary Design: Features a unique rotating contactor with dual insulator platforms for smooth operation and reliable contact separation, outperforming traditional knife-blade designs.
◆Space-Saving Construction: Vertical dual-platform design significantly reduces footprint, ideal for crowded switchgear cabinets.
◆Integrated Earthing Option (M Version): Built-in earthing knife on the same compact platform eliminates separate earthing switches, simplifying system design.
◆Superior Insulating Capability: Dual insulator platform enhances dielectric strength between phases and to ground, ensuring reliable performance at rated voltage.
◆GB1985 Compliant Performance: Meets all requirements of GB1985 standard, guaranteeing quality and reliability.
◆Versatile Installation Options: Flexible design allows installation inside high voltage switchgear cabinets or as a standalone unit, adapting to various application requirements.