Overview
Product Details
Product Description
High voltage disconnector is an important switching device in power plant and substation electrical system, which needs to be used with high voltage circuit breaker. The disconnector is suitable for indoor devices with three-phase AC 50 Hz and rated voltage 12 kV. It is used to connect, cut off or transfer the line under the condition of high voltage equipment with voltage and negative load. Its main functions are: to ensure the safety of high-voltage electrical appliances and devices in the maintenance work, play the role of Isolating voltage, can not be used to cut off, input load current and break short-circuit current, can only be used for some switching operations that do not produce strong arc, that is to say, it does not have arc extinguishing function; According to the installation location, it can be divided into indoor type and outdoor type. According to the number of insulation pillars, it can be divided into single column type, double column type and three column type. Each voltage level has optional equipment.
Specification
Type | Rated voltage | Rated current | 4s short-time withstand currentkA | Peak swithstand currentkA | Lightning impulse withstanding voltage | Power frequency withstand voltage | ||||
Pole to the earth(plus or minus) kV | Between open contacts (plus or minus) kV | Pole to the earth (plus or minus) kV | Between open contacts(plus or minus) kV | |||||||
GW9-12/400 | 25 | 400 | 12.5 | 31.5 | 75 | 85 | 38 | 42 | ||
HGW9-12/400 | 25 | 630 | 12.5 | 31.5 | 75 | 85 | 38 | 42 | ||
GW9-12/630 | 25 | 630 | 12.5 | 31.5 | 75 | 85 | 38 | 42 | ||
HGW9-12/630 | 25 | 630 | 20 | 50 | 75 | 85 | 38 | 42 | ||
HGW9-12/1250 | 25 | 1250 | 31.5 | 80 | 75 | 85 | 38 | 42 | ||
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Trading Area
Global