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LW-12 11kv 12kv Electrical Primary And Secondary Integration Circuit Breaker

LW-12 / 630-20 Outdoor high-voltage AC circuit breaker, its integrated "smart, safety and free maintenance " design concept, integrate the actual situation of distribution network, intelligent grid construction in China, using the main And subtle integration technology, design and develop a new type of circuit breaker that fully meets the requirements of the primary and secondary integration circuit breaker groups
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11kv 12kv Electrical Primary And Secondary Integration Circuit Breaker


LW-12 / 630-20 Outdoor high-voltage AC circuit breaker, its integrated "smart, safety and free maintenance " design concept, integrate the actual situation of distribution network, intelligent grid construction in China, using the main And subtle integration technology, design and develop a new type of circuit breaker that fully meets the requirements of the primary and secondary integration circuit breaker groups


NameunitEnvironmental value
Amazing air temperatureMaximum temperature+50
Minimum temperature-20
Maximum temperature differenceK
30
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
Meet the requirements of one or two fusion parameters of national network
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 circuit opening currentka20/25
Rated short-circuitry current (peak)ka50/63
Rated short-term resistance (4S)ka20/25
Rated peak toleranceka50/63
Rated short-circuit current break30
Operating agency
spring
Vacuum circuit breaker mechanical life10000
Enclosure rating
IP67

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



main feature

The outer casing is made of stainless steel, which has reached a permanent use of corrosion resistance requirements.

Increase the explosion-proof pressure relief device to avoid circuit breaker cracking due to the increase in arc fault pressure of the switch

The input and export terminal can be modified into an insulated cable type to effectively avoid the phase flashing failure caused by foreign factors.

Installing a low gas pressure locking device, allowing the gas pressure in a dual control state, improve the reliability of the switch operation

Change the entry and exit end cover to an organic insulator shape, completely eliminate the rupture of the porcelain bottle caused by external force and lightning and the crack caused by porcelain factors, greatly improve the reliability of the circuit breaker operation.

Installing a manual locking device, effectively preventing errors when power outage

The phase distance between the switch is increased to 250mm, which can greatly reduce the flash drive, short circuit fault.


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