Customization: | Available |
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Type: | High-voltage |
Structure: | Single-column Disconnector |
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The DCD pole mounted disconnector, hook stick-operated switch used to isolate circuits on electrical distribution systems up to 24 kV. The DCD provides a visible breakpoint for maintenance person. This product is not a load break device, and it is not designed to be opened under load.
Type | DCD-12/630 (P) | DCD-12/630 DCD-12/630 (E) |
DCD-12/1250 DCD-12/1250 (E) |
DCD-12/1250 (P) | DCD-24/630 | DCD-24/1000 | |||||
Rated voltage | 12kV | 12kV | 12kV | 12kV | 24kV | 24kV | |||||
Rated current | 630A | 630A | 1250A | 1250A | 630A | 1000A | |||||
Rated frequency | 50Hz | 50Hz | 50Hz | 50Hz | 50Hz | 50Hz | |||||
Short-time withstand current |
25kA/3s | 25kA/3s | 25kA/3 s | 25kA/4s | 20kA/3s | 25kA/4s | |||||
Peak withstand current | 63kA | 63kA | 65kA | 63kA | 50kA | 63kA | |||||
Power frequency withstand voltage (Dry 1min) |
To earth | 42kV | 42kV | 42KV | 42KV | 65kV | 65kV | ||||
Across the isolating distance |
48kV | 48kV | 48kV | 48kV | 79kV | 79kV | |||||
Power frequency withstand voltage (Wet 1min) |
To earth | 42kV | 42kV | 42kV | 42kV | 50kV | 50kV | ||||
Across the isolating distance |
48kV | 48kV | 48kV | 48kV | 64kV | 64kV | |||||
Lightning impulse withstand voltage |
To earth | 96kV | 96kV | 96kV | 96kV | 125kV | 125kV | ||||
Across the isolating distance |
109kV | 109kV | 109kV | 109kV | 145kV | 145kV | |||||
Creepage distance | Silicon insulator | - | ≥372mm | ≥372mm | - | ≥694mm | ≥694mm | ||||
Outdoor epoxy insulator |
- | ≥372mm | ≥372mm | - | - | - | |||||
Porcelain insulator | ≥372mm | - | - | >=372mm | - | - | |||||
Resistance of main circuit |
≤62μΩ | ≤62μΩ | ≤32μΩ | ≤38μΩ | ≤70μΩ | ≤60μΩ | |||||
Mechanical endurance | 3000 CO | 3000 CO | 2000 CO | 3000 CO | 2000 CO | 2000 CO |