Vd4 Type High Voltage Indoor Fixed Vacuum Circuit Breaker (VCB) Use in cabient
Product Description
Vd4 Indoor Vacuum Circuit Breaker
Description
VD4 series medium voltage vacuum circuit-breakers with lateral operating mechanism feature the separate pole construction technique.
VD4 vacuum circuit breakers have been designed for indoor use and air insulated switchboards.
Their switching capacity is sufficient to handle any conditions arising from switching of equipment and system components under normal operating and fault conditions,
particularly short-circuits, within the parameters of their technical data. The vacuum circuit-breakers of type VD4, designed in column form,
can be supplied both as individual units for fixed installation and mounted on chassis.
Vacuum circuit-breakers are characterized by their simple and robust construction.
They have a long life expectancy. There is no adverse effect on the vacuum, even from frequent switching of operating and short-circuit currents.
Application of VD4-40.5 vcb breaker( indoor vacuum circuit breaker):
Below is the list of SM6 range units used in MV/LV transformer substations and industrial distribution substations:
Cable control and protection
Overhead control and protection
Transformers and distribution substations
Motor and transformer control and protection
Generator control and protection
Capacitor bank control and protection
Technical parameters:
| Item | Technical parameter | ||
| Rated volate(kV) | 40.5 | ||
| Rated Frequency | 50 | ||
| Rated insulation level | Peak rated lightning impulse withstand voltage (kV) | 185 | |
| 1min power frequency withstand voltage (kV) | 95 | ||
| Rated short circuit breaking current (kA) | 20.25 | 31.5 | |
| Rated current(A) | 630.1250 | 1250.1600.2000.2500.3150 | |
Rated short circuit closing current (peak kA) | 50.60 | 80 | |
| Rated short circuit duration (S) | 4 | 4 | |
| Number of starts of rated short circuit current | 30 | 20 | |
| Rated operating sequence | 0-0.3S-CO-180S-CO | ||
Mechanical life(times) | 10000 | 10000 | |
FAQ:
1. Are you a manufacturer of indoor vacuum circuit breakers as above?
Yes,we are the manufacturer of these products--indoor/outdoor vacuum circuit breakers.
But we are focus on producing series of liquid transformer and dry type transformers,outdoor vacuum circuit breakers,etc since established.
Indoor vacuum circuit breaker is a mature products in the market. And in order to meet the requirements of our older clients, we start to produce them from now on.
Big Huang and small Huang are the engineers of vacuum circuit breakers--you can find them on our factory videos.
2.As a new manufacturer of these products, what about your quality?
As what I mentioned as above,the products(vacuum circuit breaker--vcb breaker) are mature products in our market.So our engineers are good at making them.
The targets what we start to produce them are :
a. quality oriented,b.control the price--get the competitive prices for clients;c.customized products for clients according to their demands.
+86 139 6879 9444 / +86 151 5777 5432
+86（0)577-27885177
+86（0)577-27885155
10 Huxin Road, Liushi Town, Yueqing City, Zhejiang Province, China.325604
wzebl@wzebl.com
