Indoor Drawable Type Embeded Pole Vacuum Circuit Breaker

Model NO.: VB4
Poles Number: 3
Type: Circuit Breaker
Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
Certification: ISO9001-2000, Type Tested
Product Name: Indoor Drawable Type Embeded Pole Vacuum Circuit B
Pole Number: 3
Mechanical Life: 10000 Times
Rated Voltage: 12/24kv
Rated Current: 630/1250A
Trademark: FARADY
Transport Package: Wooden Box
Origin: China
HS Code: 8535210000
VB4 Indoor Vacuum Circuit Breaker


Description
VB4 series medium voltage vacuum circuit-breakers with lateral operating mechanism feature the separate pole construction technique. 
VS1 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 VB4, 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. 

Advantages
Vacuum circuit-breakers have particular advantages for use in networks where there is a high switching frequency in the working current range and/ or where a certain number of short- circuit breaking operations are expected. VS1 vacuum circuit- breakers are suitable for auto reclosing and have exceptionally high operating reliability and long life. The circuit- breakers are notable for their compact design, small dimensions together with high capacity. The operating mechanisms have a low maintenance requirement and the interrupters are maintenance- free throughout their service lives. They are well suited to all load breaking operations which occur in practice, and in particular: 
Short-circuit currents; 
Overhead lines under load and, no-load conditions; 
Cables under load and no-load conditions; 
Transformers under load and no-load conditions; 
Generators under load and no-load conditions; 
Ripple control system; 
Capacitor banks(also parallel switching) and Motors with starting currents above 600A; 

Fields of application
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

Main characteristics
1) Test voltage according DIN VDE 0670, part 1000, list 2
2) 4000 A with forced cooling
3) 3150 A with forced cooling in AP technology
4) Higher values on request
5) 360 mm for fixed, 280 mm for withdrawable Version
6) Circuit-breaker with heat sink 616 mm
7) Withdrawable Version
8) Circuit-breaker with heat sink 634 mm 
Serial
Number		 Item Unit Data 
  31.5kA 40kA 50kA
1 Rated voltage Kv 12/17.5/24kV
2 Maximum working voltage Kv 12
3 Rated current A 1250 1600
2000 2500 		1250 1600
2500 3150 		1250 2500 3150
4 Rated short-circuit break current KA 31.5 40 50
5 Rated short-circuit close current (peak value) KA 80 100 125
6 Rated withstand current (peak value) KA 80 100 125
7 4S Rated little withstand current KA 31.5 40 50
8 Rated insulation level Industrial frequency
Withstand voltage 		KA 42/50/60
Thunder impulse
Withstand voltage 		75/95/125
9 Rated operation order    Off-0.3S on and off-180S-on and off
10 Mechanical life Times 10000
11 Rated short-circuit current break and close time Times 50
12 Speak and move organization amount
Assign the curre t of the floodgate(DC)  		  V 110220
13 Speak and move organization amount
Equal to the curre t of the floodgate(DC)  		  V 110220
14 Switching distance of the contact mm >11
15 Ultra journey(touches the head
Springand compress length) 		mm 4+/-0.5
16 Three-phase breaking into shut
Floodgate sex of the same period 		Ms <2
17 Touch the head and shut a
Floodgate of time of bouncing  		  Ms <2
18 Average speed of breaking brake M/s 0.9~1.2
19 Average speed of closing brake M/s 0.6~0.8
20 Time of breaking brake Operate it under the
Voltage highest 		S <0.05 
  Operate it under the
Voltage lowest 		<0.08
21 Time of colsing brake S <0.1
22 Each the resistance of main return circuit U Ω <40
23 Allowance abrasion cumulated thickness
Of the moving and stationary contact 		mm 3
Indoor Drawable Type Embeded Pole Vacuum Circuit Breaker
++++Packaging & Shipping
Indoor Drawable Type Embeded Pole Vacuum Circuit Breaker

++++About Us
Founded in 1999, with a registered capital of 10 million USD, Zhejiang Farady Powertec.,CO enjoys about 20 years' experience in MV transmission and distribution electrical equipment manufacture.
We are National Hi-tech enterprise, National Spark plan Program,State Hi-tech enterprise, State Innovation R&D center, Patent demonstrate company.
Farady is located in Liushi of Yueqing, Zhejiang,China,main products include: Transformer/RMU/switchgear/AVR/ACR and MV indoor and outdoor switch. All the products of ours have passed the national and international laboratory type test, Farady Electric was qualified supplier of China State Grid and China southern Grid.
With ISO9001/14001/18001, we are strike for create value for our partner and customer.
There is more than 20 distributors and agents worldwide already trust us and distribute Farady product there, we are not only export product, but also provide whole technology solution to help partner to establish local factory in our business line.
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 top name in the international business from china, and contributes its share to the transformation from the Made in China into the Invented in China.


Copyright 2014 Farady Electric
Zhejiang Farady Powertech Co.,Ltd
TEL:0086-0577-61512688
Fax:0086-0577-61510628
Http:// www.farady.com.cn

Add: N.O.278,Wei 7 Rd,Yueqing Economic development Zone,Liushi,Yueqing,Zhejiang,P.R.China, 325600
 

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