what is the diff between VCB & ABCB breaker in substaions?
explain the operating priciples of VCB & ABCB
VCB- This is known as Vacuum Circuit Breaker. In this
breaker vacuum is used as insulator and as an arc-quenching
medium VCB also used as a high voltage control switch. There
is no oil. Therefore will not occurring any fire problems in
this kind of circuit breaker. Vacuum circuit breakers in
particular are useful for controlling and protecting
electrical systems. Vacuum circuit breakers offer many
advantages as compared to other types of circuit breaker.
ABCB- This is known as Air Break circuit Breaker.ABCB is
used against very high current. Air circuit breakers are
commonly used in electrical distribution systems. Air
circuit breakers which include operating mechanisms that are
mainly exposed to the environment. ABCB is also protecting
for over load, short circuit and earth fault. Most of air
circuit breakers are use in indoor type substations.
| Is This Answer Correct ? | 9 Yes | 2 No |
Define active filter?
What are the types of bus duct?
electrical ques
why DOL starter is use in induction motor as it is not reduce the starting torque
Why lightning arrester blast in rainy day?
1 Answers Eco Cement, Mahaveer, MBDL,
Why do u join toreent power ?
what is pole slip ?
what is the relation between size of the anteena and wavelenghth of radiated wave
(1)WHAT HAPPENS WHEN SUDDENLY LOAD GIVEN TO THE INDUCTION MOTOR ? (2)CAN WE MAKE WOOD AS MAGNET ? (3)WHAT IS THE VALUE OF MAGNETIC FLUX DENSITY IN TRANSFORMER ? (4)WHY WE ARE USING ELECTROMAGNETI NOT ELECTROSTATIC IN MACHINE ?
resitance in ac=1.6*resistance in dc
I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?
How can we checked Killo Watts of Motor & Alternator?
Civil Engineering (5086)
Mechanical Engineering (4453)
Electrical Engineering (16638)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)