box-type substation 35KV
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HD.HR20-0.5KV isolation switch
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Overview of disconnectors:
High-voltage isolation switch is a power plant and substation electrical system important switching electrical appliances, with high-voltage circuit breaker supporting the use of its main function is: to ensure that high-voltage electrical appliances and equipment in the maintenance work safety, the role of isolation voltage, Cut off,
The input load current and the breaking short circuit current can only be used for some switching operations that do not produce a strong arc.
Disconnector structure:
Commonly used high voltage isolating switch mainly includes the following parts: conductive part, insulation part, transmission part, base part.
Disconnector use:
High-voltage isolation switch sub-room exterior and indoor type, outdoor type, including unipolar switch and three-pole isolation switch, commonly used as the power supply line and the user separated from the circuit disconnect switch; indoor type is often connected in series with the high voltage circuit breaker, supporting the use to ensure Power failure. In addition, in the high-voltage power distribution device, the isolation switch is often used as voltage transformers, arrester, power distribution transformer and metering cabinet of high-voltage control electrical appliances.
High-voltage isolation switch production process:
Production of HGW9 series isolation switch, according to the current is divided into: 200A, 400A, 630A three,
Another Huacheng type, ordinary type for customers to choose. Bottom plate hot galvanized, wiring bolts and other standard parts are stainless steel
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JDW2-0.5KV isolation switch
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