
Manager Wang
Leave a messageThe GN30-12 rota indoor high-voltage isolation switch is a new type of isolation switch with a rotating contact blade. e main structure is to x two sets of Insulators and contacts on the upper and lower planes of the three-phase common chassis, and to achieve the opening and closing of the switch by rotating the contact blade.
The GN30-12D switch is an additional form with a grounding knife based on the GN30-12 switch, which can meet the needs of dierent power systems. is product has a compact design, small footprint, strong Insulation capacity, and is easy to install and adjust. Its peormance meets the requirements of GB1985-89 "AC High Voltage Isolation Switches and Grounding Switches" and is suitable for indoor systems with a rated voltage of 10 kVAC 50Hz and belowAs a switching circuit used in situations with voltage and no load, it can be used in conjunction with high-voltage switchgear or used independently.
1.Model and meaning
2.Environmental conditions for use
◆Altitude: not exceeding 1000m;
◆Air temperature: upper limit+40 ° C, lower limit -10 ° C;
◆Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%;
◆Eahquake intensity: not exceeding magnitude 8;
◆ Pollution level: places without serious dust, chemical corrosiveness, and explosive substances;◆Installation location: A place without frequent and severe vibrations.
3.Main technical parameters
Product Model Specification Project/Parameters | 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 | |||||
Rated voltage (KV) | 2 | |||||||
Rated current (A) | 400 | 630 | 1000 | 1250 | ||||
mermal stability current (KA) | 12.5 | 20 | 31.5 | |||||
mermal stability time (S) | 4 | |||||||
Dynamic Stable Induced Abo比ion (KA) | 31.5 | 50 | 80 | |||||
Rated insulation level lightning impulse voltage (KV) | Phase to phase, phase to ground 75, fracture 85 | |||||||
Rated insulation level 1-minute power frequency withstand voltage (KV) | Phase to phase, phase to ground 42, fracture 48 |
4.Appearance and installation dimensions (mm)
GN30-12 | GN30-12D | ||||||||||||||
400/630A | 1000A | 1250A | 400/630A | 1000A | 1250A | ||||||||||
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 |
Tel: +86 13588970775
E-mail: 954518655@qq.com
Fax: +86 0577-62770775
Add: 281 Central Avenue, Yueqing Economic Development Zone,
Yueqing City, Wenzhou City,Zhejiang Province,China
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