Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / thowsif_emerson_csm team
Inrush current or input surge current:-
It refers to the maximum, instantaneous input current drawn
by an electrical device when first turned on. For example,
incandescent light bulbs have high inrush currents until
their filaments warm up and their resistance increases.
Alternating current electric motors and transformers may
draw several times their normal full-load current when
first energized, for a few cycles of the input waveform.
Power converters also feature high inrush currents relative
to their steady state currents. This is typically the
charging current of the input capacitance. The selection of
overcurrent protection devices such as fuses and circuit
breakers is made more complicated when high inrush currents
must be tolerated. The overcurrent protection must react
quickly to overload or short circuit but must not interrupt
the circuit when the (usually harmless) inrush current flows
| Is This Answer Correct ? | 21 Yes | 1 No |
Post New Answer View All Answers
Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?
What is the function of electron gun used in crt?
2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?
how much allowable resistance that can be difference in motor all coils?
in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.
what is the difference between changer, converter and transformer?
all interview questions with answers of ntpc (2000-2009
I want to replace the 3 KW DC motor with AC motor so what should be the rating of AC motor? Details Of DC motor to be changed with AC are - Kw - 3, Vf - 310, If - 0.15, Va - 400, Ia - 13, RPM - 2400
How will calculate losses in an multi core Aluminium LT cable of different sizes & upto what length we can use a LT Cable ?
Name one of major transformer company in KSA ?
1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is
What are the components of feedback control system?
hello if any one have papers vof hpcl or sail, plz send me
What we mean by vintage of an engine+Generator?
what is interfacing in computer studies?
