GW4-72.5 3 Phase 66kv 69kv 110kv 126kv Horizontal Disconnector Switch
1. GW4-72.5 126 type 3 phase 66kv 69kv 110kv 126kv outdoor horizontal disconnector switch
- High ability of anti-corrosion. All exposed steel parts are hot-dip galvanized; shaft pins are made of stainless steel; the surface of aluminium conductor is passivated; standard parts are hot-dip galvanized or made of stainless steel.
- Reliable and stable drive. Adapters on driving part consist of clamping forks or joint ball shaft; shaft base is in fully-enclosed structure; Three-phase ganged operation is rezlized through touching connection with universial friction.
- Good conductivity. Touch between outgoing pad contact piece and conductive rod is constructed by flexible connection; Outer-pressed stainless steel spring is used on contact piece; contacting part is silver-plated by finishing process.
- Good property of operating mechanism.
2. Normal Service Condition
- Altitude: not more than 1000m, and not more than 3000m in special condition.
- Ambient air temperature: -40ºC~45ºC
- Wind is not more than 35m/s (corresponding to wind pressure of 700Pa)
- Earthquake accelerate: horizontal 3.92m/s2
- Pollution class: III class(heavy pollution), IV class (in special circumstances)
- Iced coating: 20mm
- Max radiance from sun: 1000W/m2(fine weather, at noon)
Note: When product is used under the condition out of above range, user and manufacturer shall consult to confirm.
3. Technical Data Sheet
| Item | Unit | GW4-72.5 | |
| Rated Voltage | KV | 72.5 | |
| Rated Normal Current | A | 2000~5000 | |
| Rated Frequency | HZ | 50 | |
| Rated Short-time Withstand Current and Duration | KA/S | 40/3, 50/4 | |
| Rated Peak Withstand Current (Peak) | KA | 100, 125 | |
| Rated Short-time Power Frequency Withstand Voltage (rms.) | To earth | KV | 160, 181 |
| Between Breaks | KV | 200,226 | |
| Rated Lighting Impulse Withstand Voltage(Peak) | To earth | KV | 350, 396 |
| Between Breaks | KV | 410, 463 | |
4. Installation Dimensions
5. Factory
6. Delivery
7. FAQ
1. Send the technical data, better for all useful information; we will make a good recommendation.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. The lead time depend on quantity of order. Some standard type is on stock. Otherwise, it will take 3-15 days.
3. Usually shipped by sea, small order or urgent order we can send you by air.
4. All our activities are accredited to ISO 14001:2015 and IEC standard.
5. Technology ensure the quality satisfy international request.
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