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FZW28-12 column high voltage AC vacuum load switch

FZW28-12 column high voltage AC vacuum load switch is used in the column installation, with manual and electric operation functions, the switch body is optimized on the basis of Japan Toshiba VSP5-12, and more suitable for my country's distribution network Requirements, this switch is a maintenance-free load switch, using vacuum arc and SF6 gases, and phase insulation medium. Suitable for the responsibility of the 10KV distribution line user entry, it is also possible to apply to the required branch line connection.
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FZW28-12 column high voltage AC vacuum load switch is used in the column installation, with manual and electric operation functions, the switch body is optimized on the basis of Japan Toshiba VSP5-12, and more suitable for my country's distribution network Requirements, this switch is a maintenance-free load switch, using vacuum arc and SF6 gases, and phase insulation medium. Suitable for the responsibility of the 10KV distribution line user entry, it is also possible to apply to the required branch line connection.


Use environment

NameunitEnvironmental value
Amazing air temperatureMaximum temperature+50
Minimum temperature-20
Maximum temperature differenceK30
altitudem≤3000
Solar radiation intensityW / cm20.1
Contamination
Ice thicknessmm10
humidityDaily relative humidity average%≤100
Monthly relative humidity average≤95
Tolerate earthquake≤8

Note: Environmental parameters are exceeded in the previous table, please contact us.



Rated voltageKV12
Rated currentA630
CT parameters
Customized according to customer requirements
Rated frequencyHz50
Rated short (1min) power frequency tolerance voltage (on ground / broken)KV42/48
Rated lightning impact tolerance voltage (on ground / broken)KV75/85
Rated short-circuitry current (peak)ka50
Rated short-term resistance (4S)ka20
Rated peak toleranceka50
Rated short-circuit current break30
Operating agency
spring
Vacuum circuit breaker mechanical life10000
Enclosure rating
IP67
Annual leaf rate%<0.01

Note: Technical parameters exceed the scope of the previous table, please contact us



The switch is sealed in a full insulation, a full sealing structure, a high pressure portion, a low voltage control loop, and an operating mechanism, and the inside of the box is charged in the case, and the switch main circuit leads the terminal with insulation cable protection.
The operating mechanism combines the spring energy storage mechanism and the electromagnetic mechanism of the free trip device, enabling the device with manual / automatic operation, and more flexible switching operations. And guarantees that the switch is reliable in the absence of the pressure.
The switch is installed in a suspension or a seat, making it more convenient and flexible on the pole.
The switch has a control interface for distribution automation. Fial of the feed line automation function can be achieved after installing the intelligent control box.



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