General
VB85 high-voltage indoor vacuum circuit breaker is applicable for three-phase AC power system of rated voltage up to 36kV and frequency 50/60HZ,widely used in many fields such as power plant, transformer substation, petrol chemical industry, metallurgy, manufacturing industry, airport, residential area, etc.,to control and protect the electric equipment,
especially, It is used for the occasion that needs infrequent operation at rated current or multi-breaking short circuit current,may be mounted in the indoor air insulating switchgear like type KYN61 or AMS, ABB type ZS3.2 series, etc.
This circuit breaker is made with mature APG technology. The application of VB85 terminal buffer guarantees the indoor terminal is ever more reliable in any operation environment.
VB85 can fully meet the requirement of GB, DL, IEC, DIN, VDE as well as standards of other advanced industrial countries.
Service Environment
1.Air temperature: Maximum temperature: +40ºC; Minimum temperature:-25ºC
2.Humidity: Monthly average humidity 95%; Daily average humidity 90% .
3.Altitude above sea level: Maximum installation altitude: 2500m
4.Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
5.No frequent violent shake
Detailed Images
| No |
Item |
Unit |
Parameter |
| 1 |
Rated voltage |
KV |
30/33/35/40.5 |
| 2 |
Rated frequency |
Hz |
50/60 |
| 3 |
Rated current |
A |
630/1250/1600/2000/2500 |
| 4 |
1min Power frequency withstand voltage |
KV |
95 |
118 |
| 5 |
Light impulse withstand voltage |
KV |
185 |
215 |
| 6 |
Rated short circuit breaking current (peak) |
KV |
50/63/80 |
| 7 |
Rated short breaking current |
KV |
16,20,25,31.5 |
| 8 |
Rated short circuit making current (peak) |
KV |
50/63/80 |
| 9 |
Rated cable(line) charging breaking current |
A |
50and10 |
| 10 |
Rated single capacitor bank switching current |
A |
400 |
| 11 |
Rated withstand current (peak) |
KA |
50/63/80 |
| 12 |
Short time withstand current (4s) |
KA |
16,20,15,31.5 |
| 13 |
Mechanism life |
times |
10000 |
Advanced technique
The circuit-breaker VB85-40.5 is the newest equipment in the voltage class of 36kV manufactured by Wenzhou Farady Electric Co., Ltd.
It is universal used in power distributing and transforming systems of power stations, power generators, and secondary substations of mines, industries and infrastructures.
The circuit-breaker VB85-40.5 has complete type specifications:
the rated voltage is 40.5kV, the rated current is up to 2500A and the rated short circuit breaking current is up to 31.5kA.
The circuit-breaker VB85-40.5 is equipped with modularized spring operating mechanism which has characteristic of more convenient maintenance, rapider replacing of parts and more reliable performance.
The circuit-breaker VB85-40.5 adopts embedded poles that the vacuum interrupter with low resistance and the primary main electrical circuit are cast in insulating cylinders by epoxy resin.
This structure makes the breaker have more reliable insulation.
The embedded poles of circuit-breaker VB85-40.5have the technique of ventilation and convection. Besides, the vacuum interrupter is with low resistance.
All of these reduce the power consumption and the temperature rising due to the longtime running of circuit-breaker.
The circuit-breaker VB85-40.5 has perfect performance when it is breaking short-circuit current or being operated frequently.
Beside that it also has the functions of automatic reclosing and reliable operating.
The driving mechanisms of circuit-breaker VB85-40.5 are designed by professionals in Faradyand with characteristic of reliable closing performance, low impact force and longer lifetime.
The mechanical lifetime can be up to 30000 cycles.
All of the mechanism's surface of circuit-breaker VB85-36 is disposed with special process and lubricative technique.
Not only the rust-resistance capability is improved but also the operating performance is ensured.The circuit-breaker is also applicable to humid and hot regions.
The circuit-breaker VB85-40.5 has been through the whole type test in accordance with the standards of GB and IEC.
Product drawing
Drawable Vacuum Circuit Breaker
| Rated current |
a |
b |
| 1250/1600A |
Φ74 |
Φ35 |
| 2000/2500A |
Φ113 |
Φ79 |
Fixed type Vacuum Circuit Breaker
| Rated current |
1250A |
>1250A,1650A,2000A |
2500A |
| Bus bar |
1×80×10mm |
2×80×10mm |
3×80×10mm |
Packing & Delivery
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.
Zhejiang Farady Powertech Co.,Ltd
TEL:0086-0577-61512688
Fax:0086-0577-61510628
Http:// faradypowertech.en.made-in-china.com
Add: N.O.278,Wei 7 Rd,Yueqing Economic development Zone,Liushi,Yueqing,Zhejiang,P.R.China,
325600
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