GW -12(15/24) HIGH VOLTAGE DISCONNECTING SWITCH
Product Overview
GW □ – 12 (15 / 24) outdoor high-voltage disconnector is a 50 Hz AC outdoor high-voltage electrical equipment, with rated voltage levels of 10 kV, 15 kV and 24 kV. It is used for opening and closing of high-voltage lines under no-load condition, and for electrical isolation of live high-voltage lines of electrical equipment such as high-voltage bus and circuit breaker under repair. It can also be used for opening and closing small capacitive or inductive current.
This series of outdoor disconnectors meet the relevant provisions of GB 1985 “AC high voltage disconnectors and earthing switches”, IEC 60129 “AC disconnectors and earthing switches” and GB / t11022 “common technical requirements for standards of high voltage switchgear and control equipment”
Main Technical Parameters
| Item | Unit | ||||||||
| Rated voltage | kV | 10 | 12 | 20 | |||||
| Maximum operating voltage | kV | 12 | 12 | 24 | |||||
| Rated insulation level | 1 minute power frequency withstand voltage (RMS) | To the ground | kV | 40 | 40 | 65 | |||
| fracture | kV | 47 | 47 | 79 | |||||
| Lightning impulse withstand voltage (peak value) | To the ground | kV | 105 | 105 | 125 | ||||
| fracture | kV | 120 | 120 | 145 | |||||
| Rated frequency | Hz | 50 | |||||||
| Rated current | A | 200 | 400 | 630 | 800 | 1000 | 1250 | ||
| 4 second thermal stability current (RMS) | kA | 6.3 | 12.5 | 20 | 25 | 25 | 31.5 | ||
| Dynamic stability current (peak value) | kA | 16 | 31.5 | 50 | 63 | 63 | 80 | ||
| Creepage distance | mm | 300 | 380 | ||||||
| Mechanical life | time | 2000 | 2000 | ||||||
Appearance And Installation Dimensions
