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33kv/72.5kv/110kv/ 145kv Outdoor Live Tank Vacuum Circuit Breaker

China 33kv/72.5kv/110kv/145kv Outdoor Live Tank Vacuum Circuit Breaker, Find details about China Powert Transformer, Circuit Breaker from 33kv/72.5kv/110kv/145kv Outdoor Live Tank Vacuum Circuit Breaker

Model NO.
ZW
Poles Number
3
Type
Circuit Breaker
Function
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, OVP(Overvoltage Protection)
Certification
ISO9001-2000
Trademark
HEMG
Transport Package
Carton with Wooden
Specification
33KV/72.5KV/145KV, 50HZ/60HZ/1250A TO 3150A
Origin
China
Model NO.
ZW
Poles Number
3
Type
Circuit Breaker
Function
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, OVP(Overvoltage Protection)
Certification
ISO9001-2000
Trademark
HEMG
Transport Package
Carton with Wooden
Specification
33KV/72.5KV/145KV, 50HZ/60HZ/1250A TO 3150A
Origin
China
ZW-33KV/72.5KV/145KV  series of outdoor high voltage vacuum circuit breaker 
 
General Description:
ZW  series of vacuum circuit breakers are three-phase, A.C 50Hz/60HZ outdoor high voltage distribution equipment with 33KV/72.5KV/145KV rated voltage, which can be used to open or close loading current, over-loading current and short-circuit current. ZW series of vacuum circuit breakers possess reasonable designing construction, convenient maintenance, With current transformer (current ratio: 100:5 H 200:5 H 400:5 H 1000:5 H 1600:5), and it is equipped with four coils for each phase used for measurement and protection. The operating mechanism is CD10-III type electric magnetic operating mechanism.
Applying ambient conditions:
1. The height above the sea level should be no higher than 4500m.
2. Ambient temperature: The max. temperature should be +40ºC. The min. temperature should be -30ºC. 
3. The wind pressure should be no more than 700Pa (equals to wind speed of 34m/s).
4. Earthquake intensity should be no more than 8 degree. 
5. The degree of air-filth should be III class.		 
Specification sheet :
NameUnitData
Rated VoltagekV35
Rated currentA1250  1600 2000
Rated frequencyHz50
Rated power frequency withstand voltage(1min)kV95
Rated short time withstand currentkA<20
Rated withstand current(peak)kA<50
Rated short-circuit breaking currentkA25  31.5
Rated short-circuit making currentkA63  80
Rated lighting impulse withstand voltagekA185
Rated duration of short circuitS4
Operating cycles at rated short-circuit breaking currentCycles12(8)
Mechanism enduranceCycles6000 10000
Closing timems<150
Opening timems<60
Overall dimension (Width X Depth X Height)mm2335 X 500 X 2275
Rated operating voltage and rated voltage of auxiliary circuitVA.C 220V,110V D.C 220V,110
 
The Construction Characteristics:
Zw series of vacuum circuit breakers are mainly made up of vacuum interrupters, current transformer, actuator and electric magnetic operating mechanism. The overall construction is adopted insulating bottle supporting type. The vacuum interrupter is mounted in the upper insulating bottle, and between them, a new kind of insulating material is filled, which can solve the problem of condensed water and other problems caused by filled gas or filled oil due to good insulating property, durability and resistance for outdoor high temperature. The lower insulator bottle is used to support the vacuum interrupter. Three-phase insulating bottles are mounted on the waterproof mechanism box, in which a heater is equipped for protecting the electric control component against damp.

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