China Gw4 40.5kv 72.5kv 126kv 145kv High Voltage Isolating Switch Isolator Disconnector Switch, Find details about China Isolating Switch, High Voltage Isolating Switch from Gw4 40.5kv 72.5kv 126kv 145kv High Voltage Isolating Switch Isolator Disconnector Switch
GW4 type outdoor high-voltage isolating switch
Description:
GW4 type outdoor high-voltage isolating switch(isolation switch, isolator, disconnector, disconnecting switch, disconnect switch) is used for three-phase AC 50Hz outdoor high voltage electrical equipment, used for the line to switching under pressed voltage no-load condition, and electrical isolation the maintenance high voltage bus, circuit breakers and other electrical equipment and charged high voltage line, can also be used for the opening and closing small capacitance or inductance current. When the knife in the normal break position, can provide an insulation distance consistent with safety requirements. Widely used in 35-110kV substation.
| 1. Scientific design and innovative structure |
| 2. Contacting points distribute on two planes, small operating moment, and release pressure to small and easy adjustment |
| 3. Improved driving and conducting part |
| 4. Column moving contact that can decrease operating strength and ensure reliability of circuit conduction |
| Item | Parameters | |||||
| GW4- 40.5 | GW4- 72.5 | GW4- 126 | GW4-126G | GW4- 145 | ||
| Rated voltage | 40.5 | 72.5 | 126 | 126 | 145 | |
| Rated current | 630 1250 2000 2500 | 630 1250 2000 2500 4000 | 630 1250 2000 2500 | 630 1250 | 1250 2000 2500 | |
| Rated short-time withstand current (RMS) | 20 31.5 40(46) | 20 31.5 40(46) | 20 31.5 40(46) | 20 31.5 | 20 31.5 40(46) | |
| Rated peak withstand current (peak) | 50 80 100(104) | 50 80 100(104) | 50 80 100(104) | 50 80 | 50 80 100(104) | |
| Rated short-time withstand voltage (effective value) | To the ground Fracture | 80 | 140 | 185(230) | 185 | 375 |
| Fracture | 110 | 160 | 210(265) | 210 | 315 | |
| Rated lightning impulse withstand voltage (peak) | To the ground | 185 | 325 | 450(550) | 450 | 650 |
| Fracture | 215 | 375 | 520(630) | 550 | 750 | |
| Wiring terminal rated the horizontal tension | 490(735) | 735 | 735 | 735 | 960 | |
| Weight of single pole | 80 | 200 | 240 | 300 | 300 | |
| 1.Ambient temperature: upper limit +40ºC, lower limit-30ºC |
| 2.Altitude: no more than 3000m |
| 3.Wind speed: no more than 35m/s |
| 4.Earthquake intensity: do not exceed 8 degree |
| 5.Pollution level: no more than Ill class |
| 6.No severe vibration, no corrosive gas, no fire, no explosion danger place. |
Zhejiang ZheGui Electric Co., Ltd established in 2013. We are located in Zhejiang with convenient transportation access and developed electrical market. We are group of private enterprises that hold the production license issued by the former ministry of energy and ministry mechanical and electrical engineering.
The company has nearly 60 million fixed assets and more than 60 employees, covering 23133 square meters. We are specialized in R&D production of complete switchgear of high and low voltage equipment such as prefabricated substation, distribution cabinet/box, drawer cabinet, ring network cabinet, inflatable cabinet, etc.
We owns three CNC bending machine, CNC shearing machine, CNC laser cutting machine and a series of advanced production equipment to further optimized the product structure and improve the efficiency of production. After nearly 7 years of development, it has passed ISO 9001-2000 quality system certification. All items produced by our own factory, so our advantages are: reliable quality and reasonable price. Gather the world's energy to delight your business. It's honorable for Zhegui to share your progress, brilliance and success!