Active Member
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[China]
Address: 21/F, Building 1, No. 816,Jinghua Road, Hi-tech Zone,Ningbo, Zhejiang, P.R. China
Contact name:Tony ma
Ningbo Tian'an Jinghua Power Technology Co., Ltd. |
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AC High Voltage Outdoor Load Switch
Fixed Vacuum Electrical Surge Arrester Main Characteristics
Rated voltage from 72,5 to 550kV
Reliable in adverse operating conditions such as high winds and
heavy ice
Always stable in the close position during short circuits
Rigid and well supported terminal pads permit post insulators and
additional space savings
Galvanized structural steel channel base assures high strength and
rigid design
Supplied or easily retro-fitted with 1 or 2 earthing switches
Customised solutions available: vertical, underhung and
phase-to-phase
Fixed Vacuum Electrical Surge Arrester Specifications
1. Can used in three-phase AC 50Hz ,24kVelectric power system ,
2. Can used in the equipment of mining and
industry ,enterprise, power plants and substations for protect and
control .
3. Can used in KYN28A-24(GZS) switchgear
cabinet and XGN fixed type switchgear cabinet.
4. Has Advanced vacuum arcing chamber.
5.insulation cylinder made by APG new technology
6.Confirmed to GB1984-2003, GB/T11022-1999 ,IEC62271-100 , DL/403
Fixed Vacuum Electrical Surge Arrester using environment
1. The temperature in surrounding air: Max:+40°C~Min -15°C,The
average:<=+35°C
2. Humidity: The average of relative temperature within 24hours is
<=95%, The average of Water
vapour pressure within 24hours is <=2.2kpa.
3. Here is no serious pollution from dust, smoke,corrosive or
combustible gas,
vapor or salt spray, and so on.
Fixed Vacuum Electrical Surge Arrester Technical parameter
| No. | Item | unit | Parameter |
| 1 | Rated Voltage | kV | 12 |
| 2 | Max. Working Voltage | kV | 12 |
| 3 | Rated Frequency | Hz | 50 |
| 4 | Rated Current | A | 100 |
| 5 | Rated Short-circuit Switch-off Current | kA | 50 |
| 6 | 1min Power Frequency Withstand voltage(value), to ground, interphase/isolation break | kA | 42/48 |
| 7 | Lighting Impluse Resisting Voltage (peak) to ground, interphase/isolation break | kV | 75/85 |
| 8 | Fuse Link Striking Output Energy | Kg | ≈5 |
| Technical Parameter of load switch with fuse | |||
| No. | Item | Unit | Parameter |
| 1 | Rated Voltage | kV | 12 |
| 2 | Max. Working Voltage | kV | 12 |
| 3 | Rated Frequency | Hz | 50 |
| 4 | Rated Current | A | 630 |
| 5 | Rated Power load switch-off current | A | 630 |
| 6 | 5% rated power load switch-off current | A | 31.5 |
| 7 | Rated capacity switch-off current | A | 10 |
| 8 | Rated inductance switch-off current | A | 40 |
| 9 | Rated transfer current | kA | 1.3 |
| 10 | Rated short-time withstand current | kA | 20 |
| 11 | Rated peak withstand current | kA | 50 |
| 12 | Mechanical endurance | cycle | 2000 |
