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Wenzhou Unisun Electric Co., Ltd.

Vacuum Circuit Breaker, Indoor Vacuum Circuit Breaker, Vd4 manufacturer / supplier in China, offering Vd4 Indoor Vacuum Circuit Breaker, Air Insulation 17.5kv Ring Main Unit (ISM6), Air Insulation 24kv Ring Main Unit ISM6 and so on.

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Supplier Homepage Product Vaccum Circuit Breaker Vd4 Indoor Vacuum Circuit Breaker

Vd4 Indoor Vacuum Circuit Breaker

FOB Price: US $100 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $100/ Piece
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Production Capacity: 50000
Transport Package: Wooden
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: iVD4
  • Operation: Energy-storage Type
  • Arc-extinguishing Medium: Vacuum
  • Structure: Spring Mechanism
  • Type: Circuit Breaker
  • Certification: VDE, ISO9001-2000, CE, CB, CCC
  • Rated Voltage: 12kv/24kv/36kv/40.5kv
  • Withstand Voltage at 50 Hz: 28/38/50/70/
  • Trademark: UNISUN
  • Origin: China
  • Breaking Capacity: High Voltage Circuit Breakers
  • Speed: High-Speed Circuit Breaker
  • Installation: Insert
  • Poles Number: 3
  • Function: Circuit-Breaker Failure Protection
  • Tag: Vacuum Circuit Breaker
  • Rated Insulation Voltage: 12kv/24kv/36kv/40.5kv
  • Rated Frequency: 50-60Hz
  • Specification: 12KV/24KV/36KV/40.5KV
  • HS Code: 85372090
Product Description
Vd4 Indoor Vacuum Circuit Breaker
Description

iVD4 series medium voltage vacuum circuit-breakers with lateral operating mechanism feature the separate pole construction technique.
iVD4 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 iVD4, 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. iVD4 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
 
Diagrammatic sketch
Vd4 Indoor Vacuum Circuit Breaker

Circuit-breaker operating mechanism
A) Open/closed auxiliary contacts
B) Geared motor for closing spring charging
C) Built-in closing spring charging lever
D) Mechanical signalling device for circuit-breaker open/closed
E) Mechanical operation counter
F) Plug-socket connectors of electrical accessories in the truck
G) Signalling device for closing springs charged/discharged
H) Service releases
I) Closing pushbutton
L) Opening pushbutton
M) Operating mechanism locking electromagnet
N) Additional shunt opening release
O) Transient contact
P) Contacts for signalling spring charged/discharged

Main characteristics
Rated voltage1)kV12243640.5
Rated frequencyHz50 -6050 - 6050 - 6050 - 60
Rated normal currentA630...40002)630.25630...31503)630...31503)
Rated short-circuit breaking current (symm.)kA16.31.540506316.31.516.416.4
Rated short-circuit making currentkA40.81001254)15840.840.140.1
Rated duration of short-circuit4)s3333334
Fixed- / withdrawable Version • / •• / •• / •• / -• / •• / •• / •
Max. overall dimensions
(fixed Version)
mm
p
H
a
b
c
150-275
205-310
450-700
424 
461-5996)
210-275
310
570-700
424
5996)
210-275
310
600-750
459
6088)
275
310
750
459
677
210-275
310
570-700
424
631-661
280/3605)
328
8957)/1000
555/6867)
1575
280/3605)
328
8957)/1000
555/6867)
1575
Weightkg73-10594-180147-260265100-110290-365290-365
Embedded Pole  
Assembled Pole     
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

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Vd4 Indoor Vacuum Circuit Breaker


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Vd4 Indoor Vacuum Circuit Breaker

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