Qingdao Sico Electric Equipment Co., Ltd.
Main products:temperature controller,flow sensor,pressure sensor,temperature sensor,vibrating fork level switch
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  • Contact Person : Mr. Yuan longzhu
  • Company Name : Qingdao Sico Electric Equipment Co., Ltd.
  • Tel : 86-532-83028251
  • Fax : 86-532-83028251
  • Address : Shandong,Qingdao,No.20 Renmin Road Qingdao China
  • Country/Region : China

outdoor High vacuum circuit breaker

outdoor High vacuum circuit breaker
Product Detailed
outdoor Hight vacuum circuit breaker Uses the vacuum extinguishing of arc, opens breaks the ability strongly

outdoor High vacuum circuit breaker

1. Outline

The SC40303-40.5 outdoors high vacuum circuit breaker uses in to exchange 50Hz, the 40.5kV three-phase electrical power system, the achievement divides, of of gathers using of the load current, the excess current and the short-circuit current.

This circuit breaker conforms to national standard GB1984-89 "A.c. high voltage Circuit breaker" and international electrician committee standard IEC56 "High-pressured Exchange Circuit breaker" request.

Circuit breaker main characteristic

a . Uses the vacuum extinguishing of arc, opens breaks the ability strongly, the electricity life is long, mechanical life 10,000;

b . Structure simple, exempts the maintenance, the overhaul period is not long;

c . Insulating ability good, the anti- contamination ability is strong;

d . May match the spring or the electromagnetism holds the drive mechanism, the machine capability is reliable, but frequently operates; Does not have the fire and the detonation hidden danger;

e . The internal installation current transformer measuring accuracy reaches 0.2 level, may realize the three-phase differential motion protection;

f . congeals the dew controller, can maintain the circuit breaker under the certain temperature humidity the reliable movement. 2 Circuit breaker exploitation conditions

A. surrounding air temperature upper limit +40 °C lower limits general areas -30 °C , high and cold area -40 °C ; B. elevation does not surpass 1000m; C. wind pressure does not surpass 700Pa (to be equal to wind speed 34m/s); D. earthquake intensity does not surpass 8; E. air contamination degree III level

3 Main technical parameter

3.1 Fixed parameter

Project

Unit

Parameter

Rated voltage

kV

40.5

Fixed insulation level

1min labor frequency pressure resistance

Dryly tries

kV

95

Wet tries (to insulate to place outside)

80

The thunder presses the impact pressure resistance (peak value)

185

Nominal current

A

1250 , 1600 , 2000

The rating short-circuits the drop-out current

kA

20 , 25 , 31.5

Fixed operation sequence

 

~0.3~  ~180S~

The rating short-circuits the drop-out current to open breaks the number of times

 

20

The rating short-circuits the pass to gather the electric current (peak value)

kA

50 , 63 , 80

Fixed peak value withstanding electric current

Fixed short-time withstanding electric current

kA

20 , 25 , 31.5

The rating short-circuits the duration

s

4

Mechanical life

 

10000

Fixed operation voltage and assistance return route rated voltage

V

Junction, direct current

220 , 110

Sound of something astir contact permission attrition thickness

mm

3

Weight

kg

800

3.2 Machinery adjustment parameter

The contact opens the distance

mm

20±2

Contact contact travelling schedule

mm

4±1

Evenly divides equally the floodgate speed

m/s

1.5±0.2

Average Gathers floodgate speed

m/s

0.7±0.2

The contact Gathers floodgate bounces the time

ms

≤ 2

Three coincides (minute) the floodgate same time the time difference

ms

≤ 2

Gathers floodgate time

ms

≤ 150

Minute floodgate time

ms

≤ 60

Each return route DC resistance

µΩ

≤ 100

4 The contour and installs the size

 

 

SC40303-40.5 outdoors high vacuum circuit breaker external dimensions

 

Please contact Ms.Amy YIN --- yinamy9@gmail [dot] com and sikeqd@126 [dot] com

outdoor High vacuum circuit breaker



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