Current chopping mainly occurs in air blast circuit breaker.why?
In an air blast breaker a high velocity jet of air is made
to flow through the arcing contacts that extinguishes the
arc much before natural ac current 0 is reached , the air
blast breaker retains the same extinguishing power
irrespective of the nature of the fault , onsequently the
blast of air sweeps out the ionised particles in between
the contacts thereby buiding the rsistance and hence
ultimately extnguishing the arc .
Is This Answer Correct ? | 24 Yes | 1 No |
what is meant by leakage current of a capacitor?
In aerodynamic turbines which element is NOT there a.stator b.compressor c. Fuel intake system d.fans
What are the difference between CT/PT operated Meter and RRAMR Meter for HT/LT application?
Why field rheostat is kept in minimum position while armature rheostat at maximum position?
what is the meaning of impedance protected in instrument cooling fan
HOW TO CALCULATE S/C,O/C,E/F OF ACB.
what you mean by vector group of a 3 ph transformer
what is the principle of switch gear? where its function ?
What is the difference between CT for protection and Ct for metering?
WHAT IS SERVO MOTOR
difference between Ac and Dc mcb ????
standard earthing rating for power line..