GN30-12M Series Indoor Rotary Type High Voltage Disconnect Switch
Technical specification
|
Item |
GN30-12M/400-12.5 |
GN30-12M/630-20 |
GN30-12M/1000-31.5 |
GN30-12M/1250-31.5 |
|
|
GN30-12DM/400-12.5 |
GN30-12DM/630-20 |
GN30-12DM/1000-31.5 |
GN30-12DM/1250-31.5 |
||
|
Rated KVoltage(KV) |
2 |
||||
|
Rated Current(A) |
400 |
630 |
1000 |
1250 |
|
|
Rated short-time withstand current(KA) |
12.5 |
20 |
31.5 |
||
|
Rated short-circuit duration (S) |
4 |
||||
|
Rated peak withstand current(KA) |
31.5 |
50 |
80 |
||
|
Rated insulting level |
Lightning impulse withstand voltage (KV) |
Phase to phase/to earth:75、across open contacts:85 |
|||
|
1 min.PF withstand voltage(KV) |
Phase to phase/to earth:42、across open contacts:48 |
||||
Product Model
Dimension
Product Functions
◆Rotary Disconnection: Utilizes a rotating contactor mechanism between upper and lower insulator platforms to make and break circuits under no-load conditions.
◆Visible Circuit Isolation: Provides clear physical disconnection for safe maintenance and repair work on de-energized circuits.
◆Integrated Earthing Knife: Built-in earthing knife form enhances safety during maintenance operations by providing visible grounding.
◆Voltage Withstanding: Maintains dielectric strength across open contacts to ensure complete isolation from energized systems.
◆Flexible Integration: Can be installed within high voltage switchgear cabinets or used as a standalone disconnect device.
Applicable Environment
◇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.
◆Integrated Earthing Knife: Built-in earthing knife on the same compact platform eliminates separate earthing switches, simplifying design and enhancing maintenance safety.
◆Space-Saving Construction: Vertical dual-platform design significantly reduces footprint, ideal for crowded switchgear cabinets.
◆Superior Insulating Capability: Dual insulator platform enhances dielectric strength between phases and to ground, ensuring reliable performance at rated voltage.
◆Versatile Installation Options: Flexible design allows installation inside high voltage switchgear cabinets or as a standalone unit for various applications.