Page 33 - YINGMING POWER(HIGH VOLTAGE)

VS1(ZN63)-24
INDOOR HIGH VOLTAGE VACUUM
CIRCUIT BREAKER YINGMING POWER
The main technical parameters

Project Unit Parameter
Rated voltage kV 24
Rated frequency Hz 50
Rated current A 630 1250 1600
Rated short-circuit breaking current kA 20 25 31.5
Rated short-circuit making current (peak value) kA 50 63 80
Rated short-circuit duration s 4
Breaking times of rated short-circuit breaking current Times 20
Rated operating sequence O-0.3s-CO-180s-CO
Rated lightning impulse withstand voltage (fracture) kV 125
Rated 1min power frequency withstand voltage (fracture) kV 65
Closing time ms ≤ 100
Opening time ms ≤ 50
Mechanical life Times 20000
Rated energy storage and operating voltage V ～ 220/110
Breaking time ms ≤ 65
Energy storage time s ≤ 10

Mechanical characteristics of circuit breaker
project Unit Parameter
Contact opening 13±1
Contact overtravel 4±1
Center distance between poles mm 275
Allow contact wear thickness 3
Average opening speed (just 6mm) 13±0.3
Average closing speed m/s 0.6±0.2
Bounce time of contact closing ms ≤2
Synchronization of three-pole closing and opening ≤2
Rated current kV 630 1250 1600 2000 2500 3150
Main circuit Fixed ≤ 50 ≤ 45 ≤ 35 ≤ 35 ≤ 30 ≤ 25
resistance μΩ
Handcart ≤ 55 ≤ 50 ≤ 40 ≤ 40 ≤ 35 ≤ 30
Opening time ms ≤ 50
Closing time ≤ 75
85%~110~Rated voltage Reliable closing
Operating characteristics of operating mechanism 65%~120~Rated voltage Reliable opening
≤ 300/Rated voltage Scoreless

Shape and installation size (mm)

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