YIFA ZN23 40.5 Indoor handcart type High Voltage Vacuum Circuit Breaker indoor vacuum circuit breaker vcb

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Price:RUB 520,289.70 - RUB 594,616.80

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Product Overview

Description

ZN23-40.5 Indoor handcart type HV Vacuum Circuit Breaker 

Product Description

ZN23-40.5 vacuum circuit breaker of ultra-long life is an indoor three-phase AC high- voltage electric equipment of rated voltage 40.5kV and 50Hz. It is suitable for controlling and protecting the power transmission and distribution system in industrial and mining enterprise and transformer substation, etc; especially, it is applicable for the industries like metallurgy, arc steelmaking that needs the frequent operation , serving as a control and protection device. This vacuum circuit breaker is of handcart type, with reasonable structure, simple maintenance and safe and reliable operation. It can be modified as required, such as PT handcart, PT with lightning arrester, handcart transformer, handcart, isolation handcart, etc.

This product conforms to the standard of GB1984-89 Alternating Current High- voltage Circuit Breaker

 

 

Itemunitparameter
Rated voltagekV40.5
Rated lightning impulse withstand voltagekV185
1 min line frequency withstand voltagekV95
Rated frequencyHz50
Rated currentA1250,1600,2000
Rated short circuit dropout currentkA25,31.5
Rated short time withstand currentkA25,31.5
Rated peak withstand currentkA63,80
Rated short circuit durations
Rated short circuit dropout timems≈90 
Rated short circuit close timekA80 
Rated operating sequence O-0.3s-CO-180s-CO 
Close time ms50~85 
Break time ms40~85 
Open circuit times of rated short circuit dropout current times20 
Mechanical life times12000 
Rated breaking current of capacitor bank A630 
Rated power of energy storage   W275 
Rated voltage of energy storage   VAC/DC220.110 
Energy storage time S15 
Rated voltage of closing and opening electromagnet VAC/DC220.110
Rated current of over current release A5
Rated current of auxiliary switch A10 
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0.1796 s.