ZW7-40.5 Outdoor Vacuum Circuit Breaker
- Altitude:≤2000m
- Ambient air temperature:-25℃~ +40℃
- Maximum daily temperature difference: ≤ 25℃
- Wind speed:≤34m/s (Equal to 700Pa over cylindrical surface)
- Earthquake intensity: 8 degree
- Air pollution degree: III
Technical parameter
| Item | Unit | Data |
Rated current | A | 1250/1600/2000 |
Rated short circuit breaking current | kA | 20/25/31.5 |
Breaking number for rated short circuit current | Times | 20 |
Rated operating sequence | O-0.3s-CO-180s-CO | |
Rated short circuit making current (peak) | kA | 50/63/80 |
Rated withstand current (peak) | kA | 50/63/80 |
Rated short-duration withstand current | kA | 20/25/31.5 |
Rated short circuit duration | s | 4 |
Average opening speed | m/s | 1.6±0.2 |
Average closing speed | m/s | 0.6±0.2 |
Contact closing bouncing time | m/s | ≤5 |
Three-pole opening and closing synchronism | ms | ≤2 |
Closing time | ms | 20~80 |
Opening time | ms | 25~60 |
Mechanical life | Times | 10000 |
Rated operating voltage and rated auxiliary circuit voltage | V | DC220/110 AC220/110 |
DC resistance of each phase loop (without transformer) | μΩ | ≤100 |
Permissible wearing accumulated depth for movable and fixed contact | mm | 3 |
Weight | kg | 800 |
ZW7-40.5 Outdoor Vacuum Circuit Breaker
ZW7-40.5 outdoor vacuum circuit breaker is outdoor high voltage appliance equipment with three phase AC 50Hz and rated voltage of 40.5 kV.The spring operating mechanism or the electromagnetic operating mechanism is additionally installed, remote electrical opening and closing can be realized, and manual opening and closing can be realized by storing energy manually on site. The design performances conform to the requirements of the national standard of GB1984-89 AC High Voltage Circuit Breaker, and it also meets the requirements of the IEC standard of IEC62271-100 AC High Voltage Circuit Breaker.
The ZW7-40.5 outdoor vacuum circuit breaker is mainly applied to control and protection of the outdoor 40.5kV transmission and transformation system, and it is also suitable for normal operation and short-circuit protection in urban and rural distribution networks as well as industrial and mining enterprises. The overall structure of the product is of a porcelain bottle strut type; and the vacuum arc-extinguishing chamber is arranged in the upper porcelain bottle, and the lower porcelain bottle is a strut porcelain bottle. The product is applied to places with frequent operations, and it has the characteristics of excellent sealing performance, aging resistance, high-voltage durability, no combustion, no explosion, long service life, convenience in installation and maintenance.
SINOAMIGO POWER T&D include below:
VCB & Operation Mechanism: Zhejiang Juli Electric Co.,Ltd
Zhejiang Juli Electric Co.,Ltd. Focus on VCB Operating Mechanism, Vacuum Circuit Breaker, Recloser Controller for VCB, include R&D, manufacturing, marketing and after service, honored as a member of High-Technology corp in China, now employees more than 300 and technician team more than 35%. Started since 2000, with headquarter in Liushi Town, Wenzhou City,China, where were named as the China electricity capital centre; Company pay a lot capacity and time for R&D, cooperate with many famous University intelligence and famous brand enterprises.
Sino Amigo, your China friends; Wherever you go, SINOAMIGO
