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  • VSV-40.5 Indoor High Voltage Vacuum Circuit Breaker
Medium Voltage Switch Element

VSV-40.5 Indoor High Voltage Vacuum Circuit Breaker

VSV-40.5 indoor high voltage AC vacuum circuit breaker is suitable for three-phase AC power syste...

  • Product Introduction
  • Product Features
  • Technical Parameters

Product Introduction

VSV-40.5 indoor high voltage AC vacuum circuit breaker is suitable for three-phase AC power system with the rated frequency of 50Hz and the rated voltage of 40.5kV. Boasting the ability of fast reclosing and standing frequent operations, the breaker is widely used to control and protect electrical devices in substations, power plants, industrial and mining enterprises, airports and buildings.

VSV-40.5 indoor high voltage AC vacuum circuit breaker conforms to such national standards as GB 1984-2014 High Voltage AC Circuit Breaker, JB/T3855-2008 High Voltage AC Vacuum Circuit Breaker, DL/T 403-2000 Technical Requirements on Ordering 12kV~40.5kV Indoor AC High Voltage Vacuum Circuit Breakers and relative regulations, IEC 62271-100、IEC 60694、IEC 62271-1, of the International Electrotechnical Commission.

Product Features

Insulated Cylinder

Components of the main loop are longitudinally installed in the insulated cylinder, which is made by epoxy resin by the APG craftsmanship, making the cylinder strong enough and highly resistant to electric arc and aging. Meanwhile, the structure can effectively prevent the vacuum arc extinguishing chamber from being affected by external factors such as shocks and dirt, making the loop stronger to stand rated short time peak withstand current.

The breaker has good anti-corrosion performance and advanced design.
The surface of the structure parts are made by Zn-Ni alloy which has strong resistance to corrosion, salt and fog. The transmission parts are made by Ni-P alloy which has strong strength and is highly resistant to friction and corrosion. And the oilless graphite drive bearings, which have strong strength and are highly resistant to friction, come from a famous international brand INA.
The breaker is C2 class.
The re-strike probability during opening of capacitative current of the breaker is very low , meeting the requirement of C2 class.
The breaker is E2 class.

The breaker has passed all tests in Shenyang High Voltage Electrical Institute Test Center and Xi’an High Voltage Electrical Institute Test Center, meeting the requirement of E2 class. The full-capacity short circuit current during the opening of the breaker reaches 20 times.

The breaker is M2 class.

The breaker has mature integrated operation mechanism which is stable and reliable and has long mechanical life. Being able to be used in occasions that require frequent operations, the breaker meets the requirement of M2 class with the mechanical life reaching 20,000 times.

The breaker is fitted with excellent buffer.

The specially designed buffer reduces overthrow in opening and bouncing in closing and extends the mechanical life of the breaker.

The breaker is installed with the insulated tension pole made by nylon.

The insulated tension pole is made by imported nylon 66 added with glass fiber, guaranteeing strength and flexibility as well as electrical performance of the breaker.

Technical Parameters

No.

Name

Unit

Data

1

Rated Voltage

 KV

40.5

2

Rated Insulation Level

1min Power Frequency Withstand Voltage

95

Lightning Impulse Withstand Voltage (Peak Value)

185

3

Rated Current

A

630 1250 1600 2000 2500

4

Rated Short-circuit Breaking Current

 KA

25

31.5

5

Rated Short-circuit Making Current (Peak Value)

63

80

6

Rated Operative Sequence

 O-0.3s-CO-180sCO

7

Rated Out of Step Breaking Current

KA

6.25

 8

8

Rated Out-phase Short-circuit Breaking Current

21.7

 27.4

9

Rated Short-circuit Breaking Current Divided Quantity

 ≤51%

10

Rated Breaking Current of   Back-to-back Capacitor Bank

A

400

Rated Breaking Current of Single Capacitor Bank

630

11

Rated Short-circuit Duration

S

4

12

Rated Short-circuit Breaking Current Breaking Times

Time

20

13

Breaking Time

ms

≤80

14

Mechanical Life

Time

20000

15

Breaker Weight

kg

260