In a 3 phase system a neutral exists so that any unbalanced
currents can flow through it towards earth.... but a phase
demands a particular current as per the load attached to
it....then where does the extra current come from the goes
in the neutral??....I mean in an unbalanced system a phase
demands a current as per its load attached....then where
does the unbalanced current come from??
Answer Posted / kj
In a 3 phase system the usual way of connecting the
transformer is in star to have a neutral. The current
flowing in the neutral does not flow to earth but to the
star point. The star point is the opposite end of the
windings where the phase is connected and the 3 are joined
together. The current in a balanced 3 phase system for
example a 3 phase motor flows through the phase wires and
not the neutral. An unbalance would be where something is
connected to a single phase and the neutral. This would be
lights for example. Here the current flows from the phase
and back through the neutral.
Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
How can we increase fuel-power ratio of any DG set?
How can we calculate the transformer rating if the load calculated is 1000KW (11Kv Supply)?
What is a copper loss or i2r loss pc?
According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.
please send me latest & previous years question papers for IOCL Technical level questions
why do we use spark detector inside the slip ring brush compartment 0ona slip ring induction motor?
What are the effects of electrical faults?
what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.
why the projects getting loss?
In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?
i m electrical diploma holder i want to do plc $ Scada some body tell me which insitute is best for me near chandigarh
I completed iti in2004 I was worked in A grade contractor can I get c licence
how to select electronic timer(Star-Delta) setting for diff. rating motors
How do we calculate transformer oil in liter from the rating of the transformer.
define as synchronous generator