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In repulsion motor direction of rotation of motor?
asked
Mar 20, 2018
by
anonymous
repulsion
motor
direction
rotation
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1
Answer
answered
Mar 20, 2018
by
anonymous
In repulsion motor direction of rotation of motor
is the same as that of brush shift.
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asked
Mar 20, 2018
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anonymous
In case of a shaded pole motor the direction of rotation of the motor is?
Last answer:
In case of a shaded pole motor the direction of rotation of the motor is from main pole to shaded pole.
shaded
pole
motor
direction
rotation
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106
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Mar 20, 2018
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anonymous
Direction of rotation of a split phase motor can be reversed by reversing the connection of?
Last answer:
Direction of rotation of a split phase motor can be reversed by reversing the connection of either running winding or starting winding.
direction
rotation
split
phase
motor
reversed
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139
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Mar 20, 2018
by
anonymous
The direction of rotation of an hysteresis motor is determined by?
Last answer:
The direction of rotation of an hysteresis motor is determined by position of shaded pole with respect to main pole.
direction
rotation
hysteresis
motor
determined
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130
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1
answer
asked
Apr 28, 2018
by
anonymous
The direction of rotation of an inverter fed 3-phase ac motor is reversed by
The direction of rotation of an inverter fed 3-phase ac motor is reversed by (A) a mechanical reversing switch (B) reversing the input dc link voltage (C) operating the inverter as a rectifier (D) changing the sequence of switching
Last answer:
The direction of rotation of an inverter fed 3-phase ac motor is reversed by changing the sequence of switching
direction
rotation
inverter
fed
3-phase
ac
motor
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116
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answer
asked
Mar 20, 2018
by
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The direction of rotation of a D.C. series motor can be changed by?
Last answer:
The direction of rotation of a D.C. series motor can be changed by interchanging field terminals.
direction
rotation
dc
series
motor
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75
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1
answer
asked
Mar 20, 2018
by
anonymous
The direction of rotation of universal motor can be reversed the by reversing the flow of current through?
Last answer:
The direction of rotation of universal motor can be reversed the by reversing the flow of current through either armature winding or field winding.
direction
rotation
universal
motor
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103
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1
answer
asked
Mar 18, 2018
by
anonymous
How can we reverse the direction of rotation of synchronous motor?
How can we reverse the direction of rotation of synchronous motor?
Last answer:
By reversing supply phase sequence we can reverse the direction of rotation of synchronous motor.
reverse
direction
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183
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1
answer
asked
May 1, 2018
by
anonymous
In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation,
In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation, the machine is operating as (1) synchronous motor (2) synchronous generator (3) asynchronous motor (4) asynchronous generator
Last answer:
In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation, the machine is operating as synchronous generator
synchronous
machine
field
flux
axis
armature
direction
rotation
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310
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1
answer
asked
Mar 20, 2018
by
anonymous
The repulsion start induction run motor is used because of?
Last answer:
The repulsion-start induction-run motor is used because of high starting torque.
repulsion
start
induction
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motor
used
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61
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1
answer
asked
Mar 20, 2018
by
anonymous
To reverse the direction of rotation of a capacitor start motor while it is running we should?
Last answer:
To reverse the direction of rotation of a capacitor start motor while it is running we should disconnect motor from the supply till it stops then reconnect it to supply with reversed connection of main or auxiliary winding.
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79
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1
answer
asked
Oct 4, 2017
by
anonymous
how can we reverse the direction of rotation of three phase induction motor?
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.
three
phase
induction
motor
rotation
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100
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1
answer
asked
Mar 20, 2018
by
anonymous
The purpose of stator winding in the compensated repulsion motor is to?
Last answer:
The purpose of stator winding in the compensated repulsion motor is to improve power factor and provide better speed regulation.
purpose
stator
winding
compensated
repulsion
motor
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74
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1
answer
asked
Mar 20, 2018
by
anonymous
In repulsion motor, zero torque is developed when?
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.
repulsion
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66
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1
answer
asked
Mar 20, 2018
by
anonymous
In repulsion motor, maximum torque is developed when?
Last answer:
In repulsion motor, maximum torque is developed when brush axis is at 45° electrical to the field axis.
repulsion
motor
maximum
torque
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70
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1
answer
asked
Mar 20, 2018
by
anonymous
Speed torque characteristic of a repulsion induction motor is similar to that of a D.C.?
Last answer:
Speed torque characteristic of a repulsion induction motor is similar to that of a D.C. compound motor.
speed
torque
characteristic
repulsion
induction
motor
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68
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1
answer
asked
Mar 20, 2018
by
anonymous
A repulsion motor is equipped with?
Last answer:
A repulsion motor is equipped with commutator.
repulsion
motor
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95
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1
answer
asked
Apr 29, 2018
by
anonymous
In a single-phase induction motor, the operating direction is determined by the ________
In a single-phase induction motor, the operating direction is determined by the ________ A) Rotor B) Stator C) Starting circuit D) None of these
Last answer:
In a single-phase induction motor, the operating direction is determined by the Starting circuit
single-phase
induction
motor
operating
direction
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78
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1
answer
asked
May 17, 2018
by
anonymous
The direction of rotation of a 3-phase induction motor is clockwise when it is supplied with 3-phase sinusoidal
The direction of rotation of a 3-phase induction motor is clockwise when it is supplied with 3-phase sinusoidal voltage having phase sequence A-B-C. For counter clockwise rotation of the motor, the phase sequence of the power supply should be (A) B-C-A (B) C-A-B (C) A-C-B (D) B-C-A or C-A-B
Last answer:
The direction of rotation of a 3-phase induction motor is clockwise when it is supplied with 3-phase sinusoidal voltage having phase sequence A-B-C. For counter clockwise rotation of the motor, the phase sequence of the power supply should be A-C-B
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363
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1
answer
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Mar 14, 2018
by
anonymous
What happens when you reverse the direction of the current in an electromagnet?
What happens when you reverse the direction of the current in an electromagnet?
Last answer:
When you reverse current direction in an electromagnet, the magnetic poles will also change.
reverse
direction
current
electromagnet
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75
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1
answer
asked
Mar 14, 2018
by
anonymous
What is the direction of flow of electric current in an electric circuit?
What is the direction of flow of electric current in an electric circuit?
Last answer:
It flows from anode to cathode (direction of holes flow)
direction
flow
electric
current
circuit
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144
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1
answer
asked
Oct 3, 2017
by
anonymous
why current flows in opposite direction of electrons ?
why current flows in opposite direction of electrons?
Last answer:
Hi team, the current flow is nothing but flow of electrons But the conventional direction I'd opposite to actual current flow . ..
current
flows
opposite
direction
electrons
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88
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1
answer
asked
Mar 22, 2018
by
anonymous
Two non-collinear parallel equal forces acting in opposite direction?
Two non-collinear parallel equal forces acting in opposite direction?
Last answer:
Two non-collinear parallel equal forces acting in opposite direction constitute a couple.
non-collinear
parallel
forces
opposite
direction
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83
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1
answer
asked
Sep 20, 2017
by
anonymous
can a DIAC conduct in both direction?
Last answer:
Yes DIAC can conduct in both direction.
diac
conduct
direction
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50
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1
answer
asked
Mar 15, 2018
by
anonymous
What is the direction of flow when charging a capacitor?
What is the direction of flow when charging a capacitor?
direction
flow
charging
capacitor
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60
views
0
answers
asked
Mar 14, 2018
by
anonymous
What is the direction of the induced electric field?
What is the direction of the induced electric field?
Last answer:
It is in opposite direction to the one that produced it.
direction
induced
electric
field
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46
views
1
answer
asked
Mar 14, 2018
by
anonymous
What is the direction of an AC current?
What is the direction of an AC current?
Last answer:
The magnitude and direction of alternating current is changes with respect to time. So for half cycle it is positive and for next half cycle it is negative.
direction
ac
current
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2.5k
views
2
answers
asked
Mar 14, 2018
by
anonymous
What is the direction of the induced current?
What is the direction of the induced current?
direction
induced
current
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66
views
0
answers
asked
Mar 14, 2018
by
anonymous
What is the direction of the electric field?
What is the direction of the electric field?
Last answer:
Electric field is at right angle widh flow of current (right hand rule).
direction
electric
field
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99
views
1
answer
asked
Mar 14, 2018
by
anonymous
What is the direction of flow of current?
What is the direction of flow of current?
Last answer:
Current flows from anode to cathode(opposite direction to flow of electrons)
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flow
current
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69
views
1
answer
asked
Mar 14, 2018
by
anonymous
What is the direction of the flow of electrons?
What is the direction of the flow of electrons?
Last answer:
Electrons flow cathode to anode or in an oposite direction of convection current flow or holes.
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flow
electrons
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88
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1
answer
asked
Mar 14, 2018
by
anonymous
What is the direction of the conventional current flow?
What is the direction of the conventional current flow?
Last answer:
The conventional current flow in opposite direction of flow of electrons. The electrons flow from negative terminal of battery to positive terminal of battery. And conventional current flow from positive terminal of battery to negative terminal of battery.
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conventional
current
flow
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74
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1
answer
asked
Mar 14, 2018
by
anonymous
How does AC current change direction?
How does AC current change direction?
Last answer:
This is because the angle at which the magnetic fields cuts across a winding changes its poles thus current has to change dirention .
ac
current
change
direction
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67
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1
answer
asked
Mar 26, 2018
by
anonymous
The number of poles in a phase induction motor at 50 Hz and running at 1500 rpm will be?
The number of poles in a phase induction motor at 50 Hz and running at 1500 rpm will be?
Last answer:
The number of poles in a phase induction motor at 50 Hz and running at 1500 rpm will be 4.
induction
motor
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64
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1
answer
asked
Mar 20, 2018
by
anonymous
In split-phase motor auxiliary winding is of?
Last answer:
In split-phase motor auxiliary winding is of thin wire placed at the top of the slots.
split-phase
motor
auxiliary
winding
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44
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1
answer
asked
Mar 20, 2018
by
anonymous
In a shaded pole single-phase motor, the revolving field is produced by the use of?
Last answer:
In a shaded pole single-phase motor, the revolving field is produced by the use of shading coils.
shaded
pole
single-phase
motor
field
use
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85
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1
answer
asked
Mar 20, 2018
by
anonymous
In a shaded pole motor, the shading coil usually consist of?
Last answer:
In a shaded pole motor, the shading coil usually consist of a single turn of heavy copper wire which is short-circuited and carries only induced current.
shaded
pole
motor
shading
coil
usually
consist
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1
answer
asked
Mar 20, 2018
by
anonymous
The wattage rating for a ceiling fan motor will be in the range?
Last answer:
The wattage rating for a ceiling fan motor will be in the range 50 to 150 W .
wattage
rating
ceiling
fan
motor
range
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144
views
1
answer
asked
Mar 20, 2018
by
anonymous
In A.C. series motor compensating winding is employed to?
Last answer:
In A.C. series motor compensating winding is employed to reduce sparking at the brushes.
ac
series
motor
compensating
winding
employed
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90
views
1
answer
asked
Mar 20, 2018
by
anonymous
In a two value capacitor motor, the capacitor used for running purposes is?
Last answer:
In a two value capacitor motor, the capacitor used for running purposes is paper spaced oil filled type.
two
value
capacitor
motor
used
running
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81
views
1
answer
asked
Mar 20, 2018
by
anonymous
In a capacitor start single-phase motor, when capacitor is replaced by a resistance?
Last answer:
In a capacitor start single-phase motor, when capacitor is replaced by a resistance motor will continue to run in same direction.
capacitor
start
single-phase
motor
resistance
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81
views
1
answer
asked
Mar 20, 2018
by
anonymous
In a single phase motor the centrifugal switch?
Last answer:
In a single phase motor the centrifugal switch disconnects auxiliary winding of the motor.
single
phase
motor
centrifugal
switch
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122
views
1
answer
asked
Mar 20, 2018
by
anonymous
In a split phase motor?
Last answer:
In a split phase motor the starting winding is connected through a centrifugal switch.
split
phase
motor
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49
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1
answer
asked
Mar 20, 2018
by
anonymous
In a capacitor start motor, the phase displacement between starting and running winding can be nearly?
Last answer:
In a capacitor start motor, the phase displacement between starting and running winding can be nearly 90°.
capacitor
start
motor
phase
displacement
between
starting
running
winding
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128
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1
answer
asked
Mar 20, 2018
by
anonymous
In a split phase motor, the running winding should have?
Last answer:
In a split phase motor, the running winding should have low resistance and high inductance.
split
phase
motor
running
winding
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68
views
1
answer
asked
Mar 20, 2018
by
anonymous
When a D.C. series motor is connected to A.C. supply, the power factor will be low because of?
Last answer:
When a D.C. series motor is connected to A.C. supply, the power factor will be low because of high inductance of field and armature circuits.
dc
series
motor
the
power
factor
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90
views
1
answer
asked
Mar 20, 2018
by
anonymous
The speed of a universal motor is generally reduced by using?
Last answer:
The speed of a universal motor is generally reduced by using gear trains.
speed
universal
motor
reduced
using
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69
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1
answer
asked
Mar 20, 2018
by
anonymous
The wattage of motor for driving domestic sewing machine will be around?
Last answer:
The wattage of motor for driving domestic sewing machine will be around 100 to 150 W.
wattage
motor
driving
domestic
sewing
machine
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76
views
1
answer
asked
Mar 20, 2018
by
anonymous
A hysteresis motor works on the principle of?
Last answer:
A hysteresis motor works on the principle of hysteresis loss.
hysteresis
motor
works
principle
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73
views
1
answer
asked
Mar 20, 2018
by
anonymous
The power factor of a single-phase induction motor is usually?
Last answer:
The power factor of a single-phase induction motor is usually lagging.
power
factor
single-phase
induction
motor
usually
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99
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1
answer
asked
Mar 20, 2018
by
anonymous
The running winding of a single phase motor on testing with meggar is found to be ground...
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.
running
winding
single
phase
motor
testing
meggar
ground
location
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