Vacuum circuit breaker VS1BEL-12

VS1BEL-12 - indoor high voltage vacuum circuit-breaker is used for switching of electric circuits at normal and emergency opertion modes in three-phases AC grid of 50Hz with 12kV rated voltage.  
Manufacturer: "AES-komplekt" (Belarus)

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Описание

Type designation:

Operating conditions:

  • Altitude above sea level 1000 m.
  • Ambient temperature: -40°С — +40°С.
  • Ambient humidity: avarage daily relative humidity — not more than 95%; average monthly relative humidity — not more than 90%.
  • Earthquake resistance: earthquake  not more than 8 points.
  • There shall be protection from fire, explosion, severe pollution, chemical erosion and severe vibrations.
  • Circuit breaker operating life 30 years.

Технические характеристики

Technical characteristics
# Name of parameter Unit Data
1 Rated voltage kV 12
2 Rated frequency Hz 50
3 Lightning impulse withstand voltage kV 75
4 1min power frequency withstand voltage    kV 42

   Rated parameters
Rated current, A Short circuit rated breaking current (thermal withstand), kA Electrodynamic withstand current  (peak value), kA Rated short circuit duration, sec Quantity of emergency breaking   Mechanical life «C-tn-O», cycles
630,1000,1250 20 50 4 50 30000
630,1000,1250 25 63 4 50 30000
1250,1600,2000,2500 31.5 80 4 50 25000 (30000*)
1600,2000, 2500, 3150 40 100 4 30 25000
4000 40/50 125 4 12 10000
*should be coordinated with the producer

Mechanical parameters
# Parameter Unit Data
1 Travel of contacts mm 11±1
2 Allowable wear-out of contacts mm 3,5±0,5
3 Asynchrony of three-phase making and breaking ms ≤2
4 Rated switching cycle   O-0,3sec-CO-180sec-CO,
O-0,3sec-CO-20sec-CO,
(O-180sec-CO-180sec-CO for 40kA)
5 Closing time ms ≤100
6 Opening time ms ≤50

   Parameters of electromagnets of circuit-breaker  
Name Capacity, W Current, A Rated voltege, V  
Closing electromagnet 245 ≤ 1,67 / ≤1,1 110/220 (AC/DC)
Opening electromagnet 245 ≤ 1,67 / ≤1,1 110/220 (AC/DC)
Locking electromagnet 10 < 0,05 110/220 (AC/DC)
Overcurrent release 3; 5 А


Power supply of all elements of operating mechanism is DC, if AC power supply is required diode bridges are installed in the control scheme.

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