- Product Details
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Quick Details
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Place of Origin:
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Zhejiang, China
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Brand Name:
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Boerstn
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Model Number:
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GW7
Quick Details
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Number of Pole:
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3
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Rated Current:
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2500A
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Rated Voltage:
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725000
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Place of Origin:
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Zhejiang, China
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Brand Name:
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Boerstn
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Model Number:
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GW7
Main Specifications
Outdoor 3 Phase 3 pole double-side breaking Disconnector Switch(DS) 72.5KV 2500A
Item | PERORMANCE AND DESIGN CRITERIA | UNIT | DATE |
Model | GW7-72.5 | ||
1 | Type of operation | Three Pole operating | |
2 | Phase | 3 phase, 3 pole | |
3 | Earthing switch | Not Integrated,single, double | |
4 | column per phase | 3 columns | |
5 | Minimum ambient temperature | C | 0-45 |
6 | Breaking method | double side breaking | |
7 | Maximum ambient temperature | C | 50 |
8 | Maximum wind speed | m/s | 45 |
9 | Altitude above sea level | m | 1000 |
10 | Applicable standard | IEC | |
11 | Rated voltage | KV | 72.5 |
12 | Rated lightning impulse withstand voltage | KV | 325 |
13 | Rated power frequency withstand voltage | KV | 140 |
14 | Rated frequency | Hz | 50 or 60 |
15 | Rated normal current | A | 2500 |
16 | Rated short-circuit | KA | 31.5 |
17 | Rated duration of sort-circuit current | s | 1 |
18 | Type of insulator | Brown porcelain | |
19 | Creepage distance | mm/K | 25 |
20 | Type of Operating mechanism | motor operated | |
21 | Motor and operating voltage | VDC | 110 |
22 | Heating element an lighting circuits | VAC | 230 |
23 | Number of auxiliary contacts | 8NO+8NC |
Product drawing
About us
We are a modern enterprise, certificated by ISO9001, ISO14001, ISO45001, mainly are engaged in dev elopment and research, production, sales and service for high voltage & low voltage electrical power distribution & transmission equipments.
Our company has world latest production & testing equipments and machines, can professional manufacture :
- High voltage switchgears
- Indoor and outdoor circuit breakers
- Low voltage switchgears
- Distribution transformers
- Compact substation
- SF6 load break switches
- High voltage SF6 ring main unit(RMU)
- Vacuum contactor
- SF6 gas insulated switchgears(GIS)
- Disconnectors ,SF6 circuit breakers, and relative electric equipments
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