Ohmmeter
Ideally megger test is the best test used to check the resistance of motor winding.
Single phase motor winding is often checked just by listening to the noise that the motor is making. An experienced person can tell if the motor is working at single phase or double phase.
The resistance of a motor winding is expressed in
You need a Megger tester. With one lead attached to the winding and the other attached to the motor housing, the Megger sends a high voltage through the winding. The Megger reads the resistance, letting you know if there is a short to ground.
a start winding on a motor is used to add torque to start a motor, and more importantly to establish the direction that the motor will turn. to reverse a motor normally means to reverse the start winding. the run winding will work the same in either direction, the start winding determines the direction.
when the field winding of a running dc shunt motor suddenly breaks open the motor fails to run because in the motor the stationary winding is armature and rotatory is field winding
1)may be voltmeter or clipon meter will be connected across the winding. 2)or in motor winding we must find amp current and aramture resistance nd then find the ratings 3)formula is rated kva of motor*1000/base kva for transmission line.
because its winding follows the wave sign
The run winding of a single phase capacitor start motor has a lower resistance than the start winding.
A single-phase induction motor has a main winding and a starting winding. When the motor has run up to normal speed the starting winding can be switched out, but for small motors this is not usually worth the trouble.
AC motor has two main winding components - stator and a rotor. Stator winding is stationary where as rotor winding is on rotating part.
To shift from a star winding to a delta winding in a three-phase motor, the connections between the windings need to be rearranged. In a star winding, the ends of the windings are connected to a common point (neutral), while in a delta winding, each winding end is connected to the start of the next winding. By physically switching the connections, the motor can be reconfigured from star to delta winding.