How to identify Motor leads in their order coming out from
winding without tag (U1, V1, W1 & U2, V2, W2)?
Answer Posted / pswin
Find three windings in the motor by using multimeter.Then
connect three windings to be star connection.After that try
to run the motor by supply.See the motor rotation from
shaft side.If the motor rotation is counterclockwise,change
any one of phase to another(R&B,R&Y or Y&B).Then u will see
motor will run in clockwise direction. If we get clockwise
rotation, u can mark R to U1, Y to V1 and B to W1. The rest
U2,V2 and W2 will be at the star point.Now U can mark as
U2,V2 and W2 at the other ends of each U1,V1 and W1.If u
know about phase sequence very well, u will find that motor
terminals are not important.Important thing is which
rotation we need and how we will feed to get right rotation
we want.
| Is This Answer Correct ? | 4 Yes | 58 No |
Post New Answer View All Answers
write a c++ code that receives an integer number and display the sum of the number and its revers integer?
how we select ac fuse rating of an power inverter???
excitation limit of an excitor
what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.
what is ramping rate of generator
high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...
WHAT IS THE DIFFERENE IN ACTION OF MCB,MCCB,RCCB
What is oscillator circuit?
Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in
What are the types of control system?
What is the formula formula for Busbar sizing and what are the things to be consider for Busbar Calculation?
how to calculate the tarriff for an industry whose kva demand is 10 mva
TRANSFORMERS WITH DC SUPPLY
why we can use 1 to 5V dc
what is the question paper model for section engineer in RRB