General:

 zw7(zw8;zw17)series 40.5KV outdoor vacuum breaker switch is a otudoor prodcut with International early 90s technonlogy level ,developed by Farady electric technology company to apply for power station , substation, control and protection of electronic facility and electronic power circuit,also used for furquently operating occation.it used for both construction of new substation and oilless transformation of old substation Usage and conditon.Three type of ZW7 are selectional(ordinary type,anti-pollution and Plateau type) for differnt service condition and requirement of user.

UP to stand:ZW7 in line with requirement of GB1984(AC high voltage breaker switch),IEC56(AC high voltage breaker switch) and ONJ.520.023JT(Technical conditions for outdoor hghboltage vacuum circuit breaker)

Service Environment
it is just for ordinary type,Other type increase partial ability to cope with stern environment
1.Air temperature: Maximum temperature: +40ºC; Minimum temperature:

general region:-30ºC Alpine region:-40ºC 

2.Air pollution level:not higher III level

3.intensity of earthquake:not higher 8 degree

4.partial pressure not exceed 700 Pa(equal with wind speed 34 m/s)
Prodcut function:
1.UPS function:AC loss of electricity open and close are able to up to 50times so that device are in good condition for 48 hours.
2.Reclosure function:Reclosing for times based on beforehand setting times.
3.Hand contact fault function:
Controller cut off without reclosure if there are failure happen when manual closing.
4.prevent-inrush current function:
when manual closing,in the case of current lower than prevent-inrush current,device extend user setup time to prevent from inrush current.If you are unnessary to operate this function,setup  in menu,please.It will display off.The setup way to inrush current menu as same as overcurrent.
5.operation function
eclosure controller provide controller with panel operation function,remote control operation including in open and close brake operation,remote cointrol as well as remote main control function
6.Liquid cyrstal display function
offer kinds of visualized parameter to product setting,setup and check. 
7.affair record function
able to record recent 255 affair
8.memorizing function
kinds of set data are stored memorize unit and remain for 10years
9.four-remote communication function
able to check recent statuse of switch
Structure Chart


Detail componment express by number show in diagram 
1.Upper terminal outgoing lines
2.vacuum arcing chamber
3.conducting clamp
4.bottom terminal outgoing lines
5.oil damper
6.conducting bar
7.current transformer
8.conducting bar
9.pocelain vase
10.alluminium bracket
11.flexible connection
12.porcelain vase

Technical Data

Certifications


About us
Farady is located in Liushi of Yueqing, a costal city, which is often referred as the Electric Products Capital in China. Boardered by the State road, highway, and high-speed railway, close to SHANGHAI/NINGBO/WENZHOU sea ports, and the Yongqiang International airport in Wenzhou, we enjoy a great advantage in transportation which thus can guarantee our clients the fast shipping.All the products of ours have passed the national laboratory type test, which also wins the STATE GRID of China as one of our contractors.The company is equipped with the state-of-the-art technology, sophisticated facilities, ISO9001 quality management system certification and ISO14001 environment certification approval.


We also enjoy the Certification of New Hi-tech Enterprises, National Spark Program, and own more than 70 item transformer patents, with which our products are not only popular in the domestic market but also exported to Southeast Asia, South America, Africa and the middle east.


Today, boasting the value of products specialization, brand management, and business globalization, with the sprits of pragmatism, innovation, efficiency, and responsibility, Farady Company is dedicated to become the biggest name in China, and contributes its share to the transformation from the Made in China into the Invented in China.