Summary
GW7-252 outdoor AC high voltage disconnect switch is used to open and close high voltage circuit in rated voltage 252kV, 50/60Hz power system. It can be used with motor operating mechanism and manual operating mechanism. It accords with the standards of IEC 62271-102 and GB1985-2004: AC high voltage disconect switch and earthing switch.
Ambient condition
1. Altitude: 2000m;
2. Ambient temperature: -40 ~+40 ;
3. Wind speed: 34m/s;
4. Earthquake intensity: 8degree;
5. Ice coverage thickness: 10mm;
6. Pollution degree: I, II, III, IV;
7. Applicable occasions should be free from inflammables and frequent severe vibration.
Product feature
GW7-252 disconnect switch is a three pole structure, contain frame, post insulator and conduct parts, three pos t insulato r for each pole, revolving post on the centre axis frame, conduct knife fixed on the centre revolvi ng post in sulator, when operating mechanism working, it can drive revolving insulator revolving 71 to finish opening and closing operating. There is an interlock between disconnect switch and earth switch.
GW7-252 disconnect switch is made of frame, post insulator and electric parts, each pole have three insulation post, revolving pole inst alled on the cente r revolvi ng axis base. Electric balde fixed on the center revolving post insulator. Operating mechanism driving post insualtor revolving 71 to finish closing. There is mechanism interlock during disconnect switch with earth switch
