Please Log in or Register for more.


99 views

1 Answer

Answer :

In a split phase motor, the running winding should have low resistance and high inductance.

Like 0 like

Please log in or register to answer this question.

Related Questions



Last Answer : In split phase motor main winding is of thick wire placed at the bottom of the slots.

Show More

83 views 1 answer







The running winding of a single phase motor on testing with meggar is found to be ground. Most probable location of the ground will be?
Last Answer : The running winding of a single phase motor on testing with meggar is found to be ground. Most probable location of the ground will be at the slot edge where coil enters or comes out of the slot.

Show More

116 views 1 answer








Last Answer : In a capacitor start motor, the phase displacement between starting and running winding can be nearly 90°.

Show More

207 views 1 answer








Last Answer : Direction of rotation of a split phase motor can be reversed by reversing the connection of either running winding or starting winding.

Show More

357 views 1 answer








Last Answer : In a split phase motor the starting winding is connected through a centrifugal switch.

Show More

117 views 1 answer







Split phase induction motor
Last Answer : Split phase induction motor : There are two windings used in split phase induction motor. It is a type of single-phase induction motor. There are two winding one is called main winding and ... motor have low starting torque it is used for small fans, blowers, centrifugal pumps, grinders etc.

Show More

230 views 1 answer







A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance is 2 Ohm. It. is braked by plugging. The resistance to be connected in series with armature to restrict armature current to 10 A, is
Last Answer : A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance is 2 Ohm. It. is braked by plugging. The resistance to be connected in series with armature to restrict armature current to 10 A, is 36 Ohm

Show More

331 views 1 answer








Last Answer : Starting winding of a single phase motor of a refrigerator is disconnected from the circuit by means of a magnetic relay.

Show More

215 views 1 answer








Last Answer : In split-phase motor auxiliary winding is of thin wire placed at the top of the slots.

Show More

72 views 1 answer








Last Answer : In a capacitor start and run motors the function of the running capacitor in series with the auxiliary winding is to improve power factor.

Show More

710 views 1 answer














Last Answer : In A.C. series motor compensating winding is employed to reduce sparking at the brushes.

Show More

145 views 1 answer








Last Answer : A centrifugal switch is used to disconnect starting winding when motor has picked up about 50 to 70 per cent of rated speed.

Show More

875 views 1 answer








Last Answer :  Sandwich type winding is used in 3 phase shell-type transformer.

Show More

197 views 1 answer








Last Answer : The starting winding of a single-phase motor is placed in stator.

Show More

115 views 1 answer








Last Answer : If starting winding of a single-phase induction motor is left in the circuit, it will draw excessive current and overheat.

Show More

234 views 1 answer








Last Answer : In a two value capacitor motor, the capacitor used for running purposes is paper spaced oil filled type.

Show More

162 views 1 answer








Last Answer : Single phase induction motor usually operates on 0.6 power factor lagging.

Show More

126 views 1 answer







A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will?
Last Answer : A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will not start at all.

Show More

231 views 1 answer








Last Answer : In a single phase motor the centrifugal switch disconnects auxiliary winding of the motor.

Show More

269 views 1 answer







Damper winding in a synchronous motor
Last Answer : Damper winding in a synchronous motor Serves to start the motor.

Show More

87 views 1 answer








Last Answer : Centrifugal switch disconnects the auxiliary winding of the motor at about 70 to 80 percent of synchronous speed.

Show More

222 views 1 answer








Last Answer : The purpose of stator winding in the compensated repulsion motor is to improve power factor and provide better speed regulation.

Show More

110 views 1 answer








Last Answer : If the field winding of an unloaded salient pole synchronous motor is open circuited, the motor will stop.

Show More

257 views 1 answer







The damping winding in synchronous motor is generally used to?
Last Answer : The damping winding in synchronous motor is generally used to provide starting torque and prevent hunting.

Show More

157 views 1 answer







In synchronous motor, does the winding losses vary with load?
Last Answer : No, in the synchronous motor the winding losses do not vary with load.

Show More

512 views 1 answer














Last Answer : Energy conservation technique in induction motor by minimizing idle and redundant running of motor: 1) Loss of energy as the no load power drawn is approximately about 12% to 16% of rated ... to unnecessary line losses. 4) Reduction in overall system energy efficiency over period of time.

Show More

690 views 1 answer







The effect of increasing load on a synchronous motor running with normal excitation is (A) Increase both its Ia and power factor. (B) Decrease Ia, but increase power factor. (C) Increase Ia, but decrease power factor (D) Decrease both Ia and power factor.
Last Answer : The effect of increasing load on a synchronous motor running with normal excitation is Increase Ia, but decrease power factor

Show More

548 views 1 answer








Last Answer : A synchronous motor running with normal excitation adjusts to load increases essentially by increase in armature current.

Show More

195 views 1 answer








Last Answer : If the synchronous motor, properly synchronised to the supply is running on no load and is having negligible loss then the stator current will be zero.

Show More

116 views 1 answer







List different starting methods of three phase synchronous motor. Explain any one of them.
Last Answer : Different Starting Methods of Three Phase Synchronous Motor: As synchronous motor is not self starting, different methods of starting are as follows: 1) By using an Induction (Pony) motor 2) ... . The rotor gets pulled into synchronism and starts running at constant speed as a synchronous motor. 

Show More

157 views 1 answer







State suitable single phase motor for following applications: (i) Table fan (ii) Mixers and Grinders
Last Answer : Application Suitable Single Phase Motor Table Fan 1) Capacitor split phase motor 2) Capacitor start capacitor run motor Mixers and Grinders 1) Universal motor 2) A.C. Series motor

Show More

96 views 1 answer







Explain with neat circuit diagrams the procedures to perform no load and blocked rotor tests on three phase induction motor.

Show More

131 views 0 answers







Why is a capacitor used in a single phase motor and not in three phase motor ?
Last Answer : In 1-phase induction motor capacitor work is generate the auxiliary winding current than excite the main winding to rotor starts rotate. After rotor start rotating about 75% of their speed than auxiliary ... emf to start the motor.so,in 3-phase induction motor is self start induction motor.

Show More

260 views 6 answers







working principle of single phase motor
Last Answer : The Stator of single phase induction motor houses two windings  1. Main (Running) winding 2. Auxiliary (Starting ) winding Rotor of single phase induction motor is ... with starting winding or a capacitor may be permanently connected in series with Auxiliary (Starting ) winding.

Show More

168 views 1 answer







Explain the working of a single phase capacitor start induction motor. 
Last Answer : Single phase capacitor start induction motor https://youtu.be/31lvvzU5Puc

Show More

394 views 2 answers







State any four advantages of three phase induction motor. 
Last Answer : Advantages of three phase induction motor https://youtu.be/27OIOCKN05U

Show More

137 views 2 answers







The slip of 400 V, three phase, 4 -pole induction motor when rotating at 1440 rpm is 
Last Answer : The slip of 400 V, three phase, 4 -pole induction motor when rotating at 1440 rpm is 4 percent

Show More

361 views 1 answer







What is the slip (as a percentage) when a 6 pole single phase induction motor operating on 220 V and 60 Hz is rotating at speed of 1140 rpm? A) 60% B) 5% C) 10% D) None of these
Last Answer : What is the slip (as a percentage) when a 6 pole single phase induction motor operating on 220 V and 60 Hz is rotating at speed of 1140 rpm? A) 60% B) 5% C) 10% D) None of these

Show More

125 views 1 answer








Last Answer : If a single phase induction motor runs slower than normal, the most likely defect is worn bearings.

Show More

170 views 1 answer








Last Answer : In case one phase of a three-phase synchronous motor is short-circuited the motor will not start.

Show More

253 views 1 answer







An unexcited single phase synchronous motor is ?
Last Answer : An unexcited single-phase synchronous motor is reluctance motor.

Show More

160 views 1 answer







Three phase synchronous motor will have how many sliprings?
Last Answer : Three phase synchronous motor will have two sliprings.

Show More

95 views 1 answer







How is a three phase cage induction motor self starting?
Last Answer : Any type of induction motor is self starting. Because the reason for torqe production require two flux displaced by some angle theta.If theta is constant with time then torqe will be constant;if ... torqe also pulsating. In induction motor this angle theta is not pulsating.so it is self starting 

Show More

158 views 1 answer







How does a single phase induction motor work?
Last Answer : As we know that single phase induction is not self started because for self started we require atleast two revolving field but single phase induction motor has only one. So we provide extra ... 1phase IM classified as split phase IM, capacitor start capacitor run, capacitor start induction run.

Show More

124 views 1 answer







What is mean by plugging in three phase induction motor?
Last Answer : Plugging in three-phase induction motor means interchanging of any two phases of a stator for quick stopping.

Show More

153 views 1 answer







explain the working of single phase induction motor.
Last Answer : Stator has two winding namely main winding and auxiliary winding.when single phase ac supply is given to the motor,its produces alternating field.this field cut by a cage rotor.so some emf ... due to this emf,rotor flux produced.the interaction between two fluxes produce torque.so rotor rotates.

Show More

186 views 1 answer







how can we reverse the direction of rotation of three phase induction motor ?
Last Answer : The direction of rotation of three phase induction motor can be reversed by plugging i.e by changing any two out of three phases of the supply to the stator of the Induction motor terminal.

Show More

137 views 1 answer







Single Phase Induction Motor
Last Answer : Single Phase Induction Motor Single phase induction motor is mostly used in home, office, shop and many single phase appliances like pumps,  ... torque and silent operation. It is uses where silent operation is required.

Show More

528 views 1 answer






Show More⇦ PreviousNext ⇨