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Current is always flowing in the phase due to the continuous voltage application.
the current in phase can be used when it is given a - ve terminal or earth the current would complete the circuit.
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What is phase current?
A phase current is the current passing through a phase, whereas a line current is the current flowing through a line.
How do you calculate negative phase sequence current?
4/4+4*4=20 is it correct by any means or not ? No this garbage has got nothing to do with negative phase sequence current in 3 phase electrical systems.
Is there any current flow through the neutral wire of single phase motor?
Yes. It is identical to the line current.
What happen when only one phase of three phase generator is fully loaded?
any more load will add to that phase ,over current protection will trip the generator.
How do you zero phase current tranformer test?
How do you zero phase current transformer test
Why line current is greater than phase current in delta connection?
Because if you apply Kirchhoff's Current Law to the junction between the line current and the two phase currents, the line current is the phasor (vector) sum of two phase currents. For a balanced load (only), this works out to 1.732 x phase current.
How is a IDMT relay used to give protection against a phase to earth fault a phase to phase fault on a feeder?
As with any IDMT relay the higher the fault current the quicker the trip time.
A delta connected 3 phase motor, shown above, draws a line current of 24 A from a 400 V supply, If fuse F3 blows, determine the current in each phase winding of the motor.IA = IC = IB=?
For proper working of any 3 phase induction motor it must be connected to a 3 phase alternating current (ac) power supply of rated voltage ...
How do you calculate the total input current from a 3-phase power source when the current from each phase is known?
Add them upAnswerThere is no 'total' current in a three-phase system. The current flowing in each line (not 'phase') is considered separately. And you most definitely don't 'add them up'!
What is the formula use for calculation voltage and current in star and delta?
Balanced Star (Wye) Connected Systems:Line Voltage = 1.732 x Phase VoltageLine Current = Phase CurrentBalanced Delta Connected Systems:Line Voltage = Phase VoltageLine Current = 1.732 x Phase Current
How do you convert line current to phase current?
The current is the same in the three live wires. The voltage can be described as the line voltage (phase to neutral) or the phase voltage (phase to phase) which is larger by a factor of sqrt(3). So a line voltage of 230 v corresponds to a phase voltage of 400 v.
Why neutral cross section is half the phase in three phase cable while it has to carry current of summation of all phase..?
The current carried by the neutral of a three phase four wire system is the un balanced current. If the three phase system was completely balanced on all three phases there would be no need for a neutral, eg a three phase motor. This neutral current will be less that the phase current so a reduction in the neutral size is allowed.
