1. Product Overview
GW4 type serial high voltage disconnect switch complies with requirements in GB1985-2004 High-voltage AC Disconnecting Switches and Earthing Switches, IEC62271-102:2002AC Disconnecting Switches and Earthing Switches, and IEC60694:1996 Common Clause for High voltage Switchgear and Control Devices.
2. Ambient Condition:
• Altitude: ≤1000m
• Ambient temperature:-30℃~40℃
• Wind speed: ≤34m/s
• Earthquake intensity: ≤8 degree
• Air pollution: IV
• Ice thickness: ≤100mm
• The installation location shall be free from flammable, explosive dangerous articles, chemical corrosion and fierce vibration.
• The pollution grade of post insulator: 0 for general type and 2 for pollution-proof type.
3.Technical parameters
|
Item |
Unit |
Data |
|
| Rated voltage |
kV |
40.5 |
|
| Rated insulation level | 1min power frequency withstand voltage (to earth/fracture) |
kV |
95/115 |
| Rated lightning impulse withstand voltage (peak) (to earth/fracture) |
kV |
185/215 |
|
| Rated frequency |
Hz |
50 |
|
| Rated current |
A |
400, 630, 1000 |
|
| Rated short time withstand current |
kA |
160, 20, 31.5 |
|
| Rated peak withstand current |
kA |
40, 50, 63 |
|
| Rated short circuit duration (main switch/earth switch) |
S |
4/2 |
|
| Rated terminal mechanical load | Horizontal longitudinal load |
N |
750 |
| Horizontal lateral load |
N |
500 |
|
| Vertical force |
N |
750 |
|
| Creepage distance |
mm |
1025-1259 |
|
| mechanical life |
times |
2000 |
|
| Manual operating mechanism | Without earthing |
CS11F) |
|
| Single earthing |
CS8-6D(F) |
||
| Single earthing |
Main switch CS14G(F); earth switch CS11(F) |
||
| Control circuit voltage |
V |
AC220, DC110, DC220 |
|
| Motorized operating mechanism | Model |
CJ6 |
|
| Motor voltage |
V |
AC380 |
|
| Control circuit voltage |
V |
AC220, AC380, DC220 |
|
| Closing/opening time |
S |
6±1 |
|
