why the neutral point is zero in star connection?
Answers were Sorted based on User's Feedback
Answer / sujeet kumar
well i think it is only zero for a balance load in case of
balance load all current are in 120 deg so resultant is zero
but in case of un balance load it will not be zero
Is This Answer Correct ? | 22 Yes | 0 No |
According to KCL
Cuurent coming to the point+current going away from the
point=0
Therotically same rule applies in star connection only if
load is balanced, but practically current at neutral point
is not 0 as .
To make the neutral current 0, earthing is provided in the
transformer commissioned at DT through a bush.
This earthing provides minimum resistance path for the
accessive current.
Is This Answer Correct ? | 9 Yes | 7 No |
Answer / harpreet singh
due to 120 degree angle resultant is zero.so neytral ponit
having resultant is zero
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / niranajn
Because neutral in a star is the common connection of all
the three windings which is at zero potential
Is This Answer Correct ? | 4 Yes | 7 No |
What is the rotor frequency of 10 Hp 1440 RPM 50HZ 415V ?
Corona occurs between two transmission wires when they (a) are closely-spaced (b) are widely-spaced (c) have high potential difference (d) carry d.c. power
What is duty cycle and protection class?
how nautral is provided for return path is 3 phase induction motor
can we install HT panel & LT panel side by side or how much clearance is required ?
how could we know the size of cable by physical view?
0 Answers Havells, United Engineering,
What is the function of restraining coil in differential relay? as well as restraining current?
What is the armature mmf in a D.C machine?
What is the meaning of C1, C61, C91 cable
how much speed will trawiling current
considering the 3phase and single phase ac system the load applied and the volage given is same...will the current differs for both the cases are it wil remain same?
what is meant by peak load