GW4 Type Outdoor Switch Disconnector , Pole Mounted Isolating Switch For AC System
Mounted Outdoor Switch Disconnector Pole mounted Isolating Switch Of High Voltage
Description of GW4 Disconnect Switch:
This type disconnector is a kind of HV outdoor electric equipments used in three-phase AC 50Hz electrical system . It is used for swithing-on/off the HV circuit when there is no load in the circuit in order to charge or transfer the circuit and also dissconnect the current with the bus bar , breaker or any other HV electrical equipments when overhauling the circuitry .
GW4 Series Parameters:
| No | Items | Technical parameter | |||||
| 1 | Rated Voltage kV | 40.5 | 12 | 18 | 20 | ||
| 2 | Nominal system voltage kV | 35 | 10 | 15 | 20 | ||
| 3 | Rated current A | 630;1250;1600;2000;2500;3150;4000 | |||||
| 4 | Rated Short Time withstand current and Time kA/s | 25~50/4 | |||||
| 5 | Rated Peak withstand current kA | 63~125 | |||||
| 6 | 1min power frequency withstand voltage (effective value) kV | To earth | 95/85 | 42 | 45 | 65 | |
| To phase | 95/85 | ||||||
| Across Isolating DS | 118 | 53 | 55 | 79 | |||
| 7 | Lightning Impulse wishstand voltage(peak value) KV | To earth | 185 | 75 | 105 | 125 | |
| To phase | 185 | ||||||
| Across Isolating DS | 210 | 85 | 120 | 145 | |||
| 8 | Rated mechanical terminal load N | Level of lateral load | 500 | 500 | 500 | 500 | |
| Level of vertical load | 250 | 250 | 250 | 250 | |||
| Vertical | 500 | 500 | 500 | 500 | |||
| 9 | The min distance of insulation against ground mm | 400 | |||||
| 10 | Max Man Operative Moment N. m | 200 | |||||
| 11 | Motor Drive operating mechanism control voltage V | AC220,380; DC110,220 | |||||
| 12 | Motor Drive operating mechanism motor voltage V | AC220,380; DC110,220 | |||||
Disconnectors' Drawing:
Installation way:
The disconnectors and earthing switches are pre-assembled and adjusted in our works as complete as possible. The construction is designed so that all disconnectors can be installed and adjusted at site very easily, without the need of any special tools. Hapam provides clear installation instructions and assembly drawings.
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