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VS1-24Indoor high voltage vacuum circuit breaker
Release time:2015-06-05 22:11 Read:Time

●Main purpose
VS1-24Indoor high voltage vacuum circuit breaker is applicable to 24KV rated voltage, frequency 50 HZ in the three-phase power system to protect and control the operator. As a power grid equipment industrial , mining enterprises of power equipment protection and control unit. Being well applied to frequent operation of rated current or the place of many times the breaking short circuit current .

It uses the design of the operation mechanism and circuit breaker ontology unibody, It can be a fixed installation unit, It is equipped with special feed mechanism and form a handcart unit too.

Operating environment
A、Ambient air temperature: -15℃ to +40℃

B、Altitude: ≤1000m    Increasing the rated insulation level according to the higher altitude
C、  Amplitude : seismic intensity is not more than 8 degrees
D、Average daily levels of relative air humidity isn’t more than95% , monthly average levels of it isn’t more than90%
E、No fire, no explosive , No serious pollution, No chemical corrosion and no violent vibration .

●   The data as follow:
NO. Project unit date   No. project Unit date
1 Rated voltage KV 24 14 Mechanical life times 20000
2 (1min)Rated power-frequency short-duration withstand voltage(1 min)
65/79 15 Rated current open circuit times(Electrical life) 20000
3 rated lighting impulse withstand voltage(peak) 125/145 16 The rated short circuit current open circuit   50(40kv≤30)
4 Rated frequency HZ 50 17 The allowable of cumulative thickness of the dynamic and static contact mm 3
5 Rated current A 630
630 1250 1600 2000 2500 3150 630 1250 1600 2000 2500 3150 18 Energy storage time
s ≤10
6 Rated short circuit breaking current KA 20/25 31.5 40 19 Clearance between open contacts MM 16±1
7 Rated power-frequency short-duration withstand voltage
20/25 35.5 40 20  
8 Rated duration of short-circuit
S 4 21 contact closed MM ≤2(40kA≤3)
9 Rated peak withstand current KA 50/63 80 100 22 three-phase and the closing ≤2
10 Rated peak with stand current 50/63 80 100 23 -8mm)Average opening speed(Contact separately-8mm)
M/S 1.5±0.2
11 Secondary circuit power frequency withstand voltage(1min) V 200 24 Average closing speed(8mm-contact closed) 0.8±0.2
12 Rated single/ back-to-back capacitor bank breaking current A 630/400(40ka 800/400) 25 Dominate the electric circuit resistance μΩ ≤50(630A)≤45(1250A)≤35(1600-2000A)≤25(2500A以上)
13 Rated capacitor Banks close inrush current KA 12.5
Frequency is no more than 1000HZ
26 Rated operating sequence

Outline Mounting Dimension

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