ZN63A(VBM7)-12 Series vacuum circuit breaker
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Keyword： ZN63A(VBM7)-12 Series vacuum circuit breaker
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- Commodity name: ZN63A(VBM7)-12 Series vacuum circuit breaker
VS1-12 type side mounted (VBM7) vacuum circuit breaker is an indoor high voltage switchgear, suitable for protection and control in three-phase power systems with rated voltage of 12 thousand volts and frequency 50HzBecause of the special advantages of vacuum circuit breaker, electric appliance is especially suitable for the frequent operation under rated curent or multiple short- circuit current. VS1-12 type side mounted (VBM7) vacuum circuit breaker adopts fixed installation, mainly used in fixed type switch cabinet. The breaker can be used alone, and can also be used for loop power supply and box type changeOr various non-standard power supply systems.
Model implication
Model implicationS/N Items Unit Data 01 Rated voltage kV 12 02 Maximum working voltage kV 12 03 Rated Current A 630~
1250630~
1250630~
20001250~
400004 Rated short circuit breaking current kA 20 25 31.5 40 05 Rated short-circuit close current kA 50 63 80 100 06 Rated peak withstand current kA 50 63 80 100 07 4S rated short-circuit withstand current kA 20 25 31.5 40 08 Rated
insulation
levelPower frequency withstand
woltage(rated breakingbefore and after)kV Ground42(fracture 48) Impulse withstand voltage
(rated breaking before and after)Ground 75(fracture 85) 09 Rated operating sequence o-0.3s-Co-180s-co 10 Mechanicallife Times 20000 11 Rated short-circuit current breaking times Times 50 12 Rated operating mechanism closing voltage(DC) V AC、DC110,220 13 Actuator woltage of the floodgate(DC) V AC、DC110,220 14 Contact stroke mm 11±1 15 Overtravel (thelength of contact spring compression) mm 3.5±0.5 16 Three-phase points,closing phase of the different ms ≤2 17 Contact closing bouncetime ms ≤2 18 Average opening speed m/s 0.9～1.2 Average closing speed m/s 0.5～0.8 19 Tripping Time Maximum operating voltage 5 ≤0.05 20 Minimum operating woltage ≤0.08 21 Closing time 5 0.1 22 The main circuit resistance ofeach phase μΩ 630≤50 1250≤45 1600≤45 23 Allowed comision thickaessfor fixed and mouable con mm 3
Physical dimension
Environmentally friendly gas-insulated metal enclosed switchgear is the most commonly used three-phase intelligent gas-insulated AC cabinet and is widely used in various switchgear sets, with population concentration in the country, the power market must be supported, environmentally friendly gas-insulated switchgear will also grow with market development; market potential is yet to be tapped. At the same time, as the product integrates data collection and management, data processing and storage, online monitoring of switchgear, advanced analysis, and other multifunctions in one, network intelligent monitoring and management of the distribution network, so that the distribution network operates in a safe, reliable, high-quality, and efficient best state, to achieve remote monitoring, management, and control of the power system distribution network, to achieve network optimization, safe electricity use, power management, energy saving, and consumption reduction; at the same time, the system can be widely used in intelligent power distribution fields such as transportation, factories, hospitals, schools, buildings, residential areas, and commercial office buildings.
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