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 | IN | AC220, DC110, DC220 | |
Motorized operating mechanism | Model | CJ6 | |
Motor voltage | IN | AC380 | |
Control circuit voltage | IN | AC220, AC380, DC220 | |
Closing/opening time | S | 6±1 |