115 views

1 Answer

Answer :

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

Like 0 like

Please log in or register to answer this question.

Related questions

3.4k views

Description : A _________ is used to measure the stator % winding temperature of the generator.  (A) Thermocouple (B) Pyrometer (C) Resistance thermometer (D) Thermometer

Last Answer : A Resistance thermometer is used to measure the stator % winding temperature of the generator. 

1 answer
129 views

Last Answer : A repulsion motor is equipped with commutator.

1 answer
103 views

Last Answer : In repulsion motor, zero torque is developed when brush axis coincides with the field axis and brush axis is 90° electrical to field axis.

1 answer
174 views

Last Answer : Speed torque characteristic of a repulsion induction motor is similar to that of a D.C. compound motor.

1 answer
117 views

Last Answer : In repulsion motor, maximum torque is developed when brush axis is at 45° electrical to the field axis.

1 answer
94 views

Last Answer : The repulsion-start induction-run motor is used because of high starting torque.

1 answer
123 views

Last Answer : In repulsion motor direction of rotation of motor is the same as that of brush shift.

1 answer
235 views

Description : State the function of following parts in Induction motor. (i) Stator (ii) Slip rings

Last Answer : Name of part Function Stator 1) Stator frame supports the core, terminal box and protects the inner parts. 2) Stator core houses stator winding. 3) Stator winding ... ) Provides facility to connect external resistance to rotor circuit through brushes for starting and control.

1 answer
189 views

Description : An electric motor in which both stator field and rotor rotates with same speed is called?

Last Answer : An electric motor in which both stator field and rotor rotates with same speed is called synchronous motor.

1 answer
92 views

Description : Damper winding in a synchronous motor

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

1 answer
358 views

Description : 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

1 answer
127 views

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

1 answer
240 views

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

1 answer
219 views

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

1 answer
230 views

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

1 answer
87 views

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

1 answer
519 views

Description : 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.

1 answer
147 views

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

1 answer
78 views

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

1 answer
117 views

Description : 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.

1 answer
892 views

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.

1 answer
216 views

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

1 answer
106 views

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

1 answer
264 views

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

1 answer
163 views

Description : 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.

1 answer
106 views

Description : The maximum torque which a synchronous motor will develop at rest for any angular position of the rotor, at rated stator supply voltage and frequency, is known as?

0 answers
95 views

Description : What is a stator in a motor?

Last Answer : Stator is the stationary part of the electrical machine both motor and generator. In motor it provide the rotating magnetic field to drive rotor and in case of generator stator convert rotating magnetic field into current.

1 answer
183 views

Last Answer : The stator of phase shifting transformer for use in conjunction with an A.C. potentiometer usually has a two-phase winding.

1 answer
162 views

Description : What causes stator failure?

Last Answer : Stator faliur due to moistur. Due to priodically heatup of winding.

4 answers
604 views

Description : A 36 slot, 4 -pole, dc machine has a simplex lap winding with two conductors per slot. The back pitch and front pitch adopted could be respectively

Last Answer : A 36 slot, 4 -pole, dc machine has a simplex lap winding with two conductors per slot. The back pitch and front pitch adopted could be respectively 19,17

1 answer
101 views

Description : Damper winding is provided in 3 phase synchronous motors to :

Last Answer : Damper winding is provided in 3 phase synchronous motors to : provide starting torque and prevent hunting

1 answer
625 views

Description : Aluminium is not used as winding wire for the armature of a dc machine because  (1) aluminium has low resistivity (2) a large winding space is taken by aluminium conductors and creates ... ) the thermal conductivity of aluminium is low (4) aluminium has low conductivity as compared to copper

Last Answer : Aluminium is not used as winding wire for the armature of a dc machine because  (2) a large winding space is taken by aluminium conductors and creates jointing problems (3) the thermal conductivity of aluminium is low (4) aluminium has low conductivity as compared to copper

1 answer
358 views

Last Answer : In D.C. machines fractional pitch winding is used to reduce the sparking.

1 answer
98 views

Description : In a single-phase induction motor when the rotor is stationary and voltage is applied to the stator, then (A) the flux is constant (B) the flux first decreases and then increases in ... increases and decreases in the opposite direction with the same magnitude (D) current flows through the rotor

Last Answer : In a single-phase induction motor when the rotor is stationary and voltage is applied to the stator, then the flux first decreases and then increases in the same direction

1 answer
501 views

Description : State advantages of short pitch winding over full pitch winding in alternators. 

Last Answer : Advantages of Short Pitch Winding over Full Pitch Winding in Alternators: 1) Short pitching reduces the amount of copper needed for end connection when compared with full pitched coil. 2) They ... reduced, thereby increasing the efficiency. 4) The power quality of generated emf is improved. 

1 answer
107 views

Last Answer : It is the wire wound around a aluminium metal it is found commonly in transformers or motors

1 answer
236 views

Description : A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts applied to the primary. What is the voltage across the secondary?  (A) 30 Volts (B) 480 Volts (C) 120 Volts (D) 60 Volts

Last Answer : A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts applied to the primary. What is the voltage across the secondary?  (A) 30 Volts (B) 480 Volts (C) 120 Volts (D) 60 Volts

1 answer
92 views

Last Answer : Wave winding is composed of that even number which is exact multiple of poles + 2.

1 answer
131 views

Last Answer : Lap winding is composed of any even number of conductors.

1 answer
96 views

Last Answer : In D.C. generators, lap winding is used for low voltage, high current.

1 answer
123 views

Last Answer : In the case of lap winding resultant pitch is difference of front and back pitches.

1 answer
673 views

Last Answer : In case of D.C. machine winding, number of commutator segments is equal to number of armature coils.

1 answer
327 views

Last Answer : In lap winding, the number of brushes is always same as the number of poles.

1 answer
219 views

Last Answer : The resistance of armature winding depends on length of conductor, cross-sectional area of the conductor, number of conductors.

1 answer
727 views

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.

1 answer
176 views

Last Answer : The short circuit in any winding of the transformer is the result of impulse voltage.

1 answer
88 views

Last Answer : Primary winding of a transformer could either be a low voltage or high voltage winding.

1 answer
203 views

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

1 answer
175 views

Last Answer : yes High Voltage side of Transformer winding have more number of turns. and low voltage side of Transformer winding have less number of turns.

1 answer
...