Why Motors are generally supplied with 3 core cables??? why
not 4C??
Answers were Sorted based on User's Feedback
Answer / ajay lathwal
Generally motors are of two type 1) single phase 2) three
phase
1) in this type 3 core cable used 1 for phase 2nd for
neutral 3rd for ground
while in,
2) in this type 3 core cable used for three phases & ground
is attached separatlly
Thats why 3 core cable used.
| Is This Answer Correct ? | 8 Yes | 3 No |
Answer / suburavichandran
only 3 phase motors are connected with such 3c cables. it is because the 4th core is used for neutral return particularly during unbalanced condition.It rises when each phase is connected to different single phase loads.since 3phase motors are balanced loads.there s no need for the 4th core i mean neutral.
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / anant.katwa
4c is supplied bcz the 4th core use as spare core if one of
the core get open it may use.
Anant.
| Is This Answer Correct ? | 2 Yes | 3 No |
Answer / neeraj pandey
Generally the Motors(approx 80% AC Motors) are 3 Phase
operated and having three terminals for taking supply. so
they required only three core cable.
Thats why there is no need of extra core in cable.
| Is This Answer Correct ? | 6 Yes | 10 No |
What is mean by hot and cold loop testing?
what is the proximity & ferranti effects can you explain to me
In an ideal transformer no load primary current I0 A lags behind V1 by 90 degree B is in the phase with V1 C leads V1 by 90 degree D lags V1 by 45 degree
why the transformer is not operates on two phase?
1 Answers APGenco, Atkins, FFBL,
In how we connect watt meter for open & short circuit test of a single phase transformer.
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
What is the difference between induction motor and the Synchronized one?
what is closing resistor in circuit breaker? why it used?
transformer is connected with 50hz and 60hz at same rating which will give more output on same rating
what is creep of energy meter?
Why is the earth socket in an electrical plug outlet made thicker and lenghty?
What shall be the secondary output voltage if the primary winding of a 220/6V, 50 Hz transformer is energized by an 110V, 60 Hz supply?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)