Discuss
menu
search
person
Login
Register
search
edit
Ask a Question
Discuss
All Activity
Q&A
Questions
Hot!
Unanswered
Tags
Users
Ask a Question
What does an electric drive do?
Speak Question
asked
Mar 10, 2018
by
anonymous
What does an electric drive do?
electric
drive
thumb_up_alt
0
like
thumb_down_alt
0
dislike
44
views
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
0
Answers
← Prev Question
Next Question →
Related questions
asked
Mar 10, 2018
by
anonymous
What is an electric motor drive?
What is an electric motor drive?
electric
motor
drive
thumb_up_alt
0
like
thumb_down_alt
0
dislike
55
views
0
answers
asked
Mar 10, 2018
by
anonymous
What is the difference between AC and DC drive?
What is the difference between AC and DC drive?
Last answer:
AC means alternating current It's Frequency is 50hz Dc means direct current ItsI Frequency is 0Hz
difference
between
ac
dc
drive
thumb_up_alt
0
like
thumb_down_alt
0
dislike
132
views
1
answer
asked
Mar 10, 2018
by
anonymous
What is a drive in electrical controls?
What is a drive in electrical controls?
drive
electrical
controls
thumb_up_alt
0
like
thumb_down_alt
0
dislike
61
views
0
answers
asked
Dec 16, 2017
by
anonymous
How does an electric motor works?
How does an electric motor works?
Last answer:
In the electric motor there are two types of part 1)moving and 2)stationary In stationary part containing field winding whis use to provide uniform maganetic field it at inner side of yoke In moving ... on it and this force is from all direction we can say it is torque.and motor armature rotates
electric
motor
works
thumb_up_alt
3
like
thumb_down_alt
0
dislike
100
views
1
answer
asked
Dec 16, 2017
by
anonymous
What is the use of an electric motor?
What is the use of an electric motor?
Last answer:
Electrical motors are use for converting electrical energy to mechanical energy. It may be use in fans, pumps, washing machine, cranes, trains, factories, industries etc.
use
electric
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
72
views
1
answer
asked
Mar 18, 2018
by
anonymous
The synchronous motor which works on leading power factor and does not drive any mechanical load is called?
The synchronous motor which works on leading power factor and does not drive any mechanical load is called?
Last answer:
The synchronous motor which works on leading power factor and does not drive any mechanical load is called synchronous condenser.
synchronous
motor
leading
power
factor
drive
mechanical
load
thumb_up_alt
0
like
thumb_down_alt
0
dislike
69
views
1
answer
asked
Mar 10, 2018
by
anonymous
What does an electric meter measure?
What does an electric meter measure?
electric
meter
measure
thumb_up_alt
0
like
thumb_down_alt
0
dislike
53
views
0
answers
asked
Apr 28, 2018
by
anonymous
In an adjustable speed ac drive which quantity gets reduced above rated speed ?
In an adjustable speed ac drive which quantity gets reduced above rated speed ? (A) developed torque (B) stator frequency (C) reduced starting torque (D) stator current
Last answer:
In an adjustable speed ac drive which quantity gets reduced above rated speed ? (A) developed torque (B) stator frequency (C) reduced starting torque (D) stator current
adjustable
speed
ac
drive
thumb_up_alt
0
like
thumb_down_alt
0
dislike
78
views
1
answer
asked
Mar 11, 2018
by
anonymous
What is the need for electrically isolated drive circuits?
What is the need for electrically isolated drive circuits?
electrically
isolated
drive
circuits
thumb_up_alt
0
like
thumb_down_alt
0
dislike
56
views
0
answers
asked
Mar 11, 2018
by
anonymous
What are the fundamental requirements of gate drive ICs?
What are the fundamental requirements of gate drive ICs?
fundamental
gate
drive
ics
thumb_up_alt
0
like
thumb_down_alt
0
dislike
96
views
0
answers
asked
Jul 6, 2019
by
anonymous
Adjustable-speed drive
Adjustable-speed drive
Last answer:
.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
adjustable-speed
drive
thumb_up_alt
0
like
thumb_down_alt
0
dislike
59
views
1
answer
asked
Mar 20, 2018
by
anonymous
For constant torque drive which speed control method is preferred ?
Last answer:
For constant torque drive armature voltage control speed control method is preferred.
constant
torque
drive
speed
control
method
thumb_up_alt
0
like
thumb_down_alt
0
dislike
89
views
1
answer
asked
Mar 11, 2018
by
anonymous
Explain transformer isolated drive circuits providing both signal and power.
Explain transformer isolated drive circuits providing both signal and power.
transformer
isolated
drive
circuits
signal
power
thumb_up_alt
0
like
thumb_down_alt
0
dislike
71
views
0
answers
asked
Mar 10, 2018
by
anonymous
Can a power surge erase a hard drive?
Can a power surge erase a hard drive?
power
surge
erase
hard
drive
thumb_up_alt
0
like
thumb_down_alt
0
dislike
43
views
0
answers
asked
Feb 19, 2018
by
anonymous
Explain MOSFET gate drive circuit and totem pole configuration.
Explain MOSFET gate drive circuit and totem pole configuration.
Last answer:
MOSFET gate drive circuit: The turning on and turning off of MOSFET can be controlled from gate to source voltage signal. If the gate to source voltage of MOSFET exceeds threshold ... this configuration, the two switches (transistors) are used in totem pole arrangement with a comparator.
mosfet
gate
drive
circuit
totem
pole
configuration
thumb_up_alt
0
like
thumb_down_alt
0
dislike
269
views
1
answer
asked
Feb 19, 2018
by
anonymous
Explain open emitter BJT drive circuit.
Explain open emitter BJT drive circuit.
Last answer:
open emitter BJT drive circuit:
open
emitter
bjt
drive
circuit
thumb_up_alt
0
like
thumb_down_alt
0
dislike
231
views
1
answer
asked
Feb 19, 2018
by
anonymous
Explain DC coupled drive circuit with unipolar output.
Explain DC coupled drive circuit with unipolar output.
Last answer:
DC coupled drive circuit with unipolar output: The figure shows the circuit and waveforms
dc
coupled
drive
circuit
unipolar
output
thumb_up_alt
0
like
thumb_down_alt
0
dislike
461
views
1
answer
asked
Feb 19, 2018
by
anonymous
Explain thyristor gate drive circuit.
Explain thyristor gate drive circuit.
Last answer:
Thyristor Gate Drive Circuit: The thyristor can be turned on by pulse voltage signal at gate terminal and it does not require continuous drive signal like the transistor. The gate ... circuit provide required minimum gate voltage and gate current then the thyristor conducts properly.
thyristor
gate
drive
circuit
thumb_up_alt
0
like
thumb_down_alt
0
dislike
2.8k
views
1
answer
asked
Nov 14, 2017
by
anonymous
basic gate drive circuit of GTO
basic gate drive circuit of GTO
Last answer:
basic gate drive circuit of GTO
basic
gate
drive
circuit
gto
thumb_up_alt
1
like
thumb_down_alt
0
dislike
858
views
1
answer
asked
Aug 25, 2017
by
anonymous
Scherbius Drive System
Scherbius Drive System
Last answer:
Scherbius Drive System
scherbius
drive
system
thumb_up_alt
0
like
thumb_down_alt
0
dislike
176
views
1
answer
asked
Aug 25, 2017
by
anonymous
Kramer Drive System
Kramer Drive System
Last answer:
Kramer Drive System Kramer drive is a rotor side speed control drive of induction motor. Slip is the difference between synchronous speed and rotor speed. It is the ... and DC motor. The static Kramer drive is costlier because of the cost of DC motor.
kramer
drive
system
thumb_up_alt
0
like
thumb_down_alt
0
dislike
384
views
2
answers
asked
Aug 9, 2017
by
anonymous
Advantages of Variable Frequency Drive (VFD)
Advantages of Variable Frequency Drive (VFD)
Last answer:
Advantages of Variable Frequency Drive (VFD)
advantages
variable
frequency
drive
vfd
thumb_up_alt
0
like
thumb_down_alt
0
dislike
73
views
2
answers
asked
Mar 19, 2018
by
anonymous
Losses which occur in rotating electric machines and do not occur in transformers are?
Losses which occur in rotating electric machines and do not occur in transformers are?
Last answer:
Friction losses windage losses
losses
rotating
electric
machines
transformers
thumb_up_alt
0
like
thumb_down_alt
0
dislike
109
views
2
answers
asked
Mar 11, 2018
by
anonymous
Do electric trains have gears?
Do electric trains have gears?
Last answer:
Electric trains have gears for speed variation. This is because it is not easy to run a motor at diffrent speed of your choice.
electric
trains
gears
thumb_up_alt
0
like
thumb_down_alt
0
dislike
117
views
1
answer
asked
Mar 11, 2018
by
anonymous
How does electric locomotive work?
How does electric locomotive work?
Last answer:
Electric locomotives are powered by motors connected to battery or any supply . The electric supply is connected to a motor which drives set of gears connected to wheels.
electric
locomotive
work
thumb_up_alt
0
like
thumb_down_alt
0
dislike
162
views
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
thumb_up_alt
0
like
thumb_down_alt
0
dislike
144
views
1
answer
asked
Jun 29, 2019
by
anonymous
List three important characteristics of an electric circuit.
List three important characteristics of an electric circuit.
list
three
important
characteristics
of
an
electric
circuit
thumb_up_alt
0
like
thumb_down_alt
0
dislike
211
views
0
answers
asked
May 8, 2018
by
anonymous
An _____________is a network of electrical components used to supply, transfer and use electric power:
An _____________is a network of electrical components used to supply, transfer and use electric power: (A) Electric power system (B) Electric power (C) All of the above (D) None of the above
Last answer:
An Electric power system is a network of electrical components used to supply, transfer and use electric power.
use
electric
power
thumb_up_alt
0
like
thumb_down_alt
0
dislike
68
views
1
answer
asked
Apr 29, 2018
by
anonymous
The ability of materials to become polarized under an applied electric field is called _______
The ability of materials to become polarized under an applied electric field is called _______ A) Ferroelectricity B) Paraelectricity C) Polectricity D) None of these
Last answer:
The ability of materials to become polarized under an applied electric field is called Paraelectricity
materials
polarized
electric
field
thumb_up_alt
0
like
thumb_down_alt
0
dislike
96
views
1
answer
asked
Apr 28, 2018
by
anonymous
Specific energy consumption of an electric train is the ratio between
Specific energy consumption of an electric train is the ratio between (A) Specific energy output at driving wheels and efficiency of the traction motor (B) Specific energy output at driving wheels and efficiency of the transmission gear (C) Specific energy output of driving motor and efficiency of the driving wheels (D) Specific energy output at driving wheels and efficiency of the (motor + transmission gear)
Last answer:
Specific energy consumption of an electric train is the ratio between Specific energy output at driving wheels and efficiency of the (motor + transmission gear)
energy
consumption
electric
train
ratio
thumb_up_alt
0
like
thumb_down_alt
0
dislike
76
views
1
answer
asked
Mar 25, 2018
by
anonymous
The filament of an electric bulb is made of?
The filament of an electric bulb is made of?
Last answer:
The filament of an electric bulb is made of tungsten.
filament
electric
bulb
thumb_up_alt
0
like
thumb_down_alt
0
dislike
54
views
1
answer
asked
Mar 25, 2018
by
anonymous
An instrument which detects electric current is known as?
An instrument which detects electric current is known as?
Last answer:
An instrument which detects electric current is known as galvanometer.
instrument
detects
electric
current
thumb_up_alt
0
like
thumb_down_alt
0
dislike
95
views
1
answer
asked
Mar 21, 2018
by
anonymous
Which is an instrument which measures insulation resistance of an electric circuit relative to earth and one another?
Last answer:
Meggar is an instrument which measures the insulation resistance of an electric circuit relative to earth and one another.
instrument
measures
insulation
resistance
electric
circuit
earth
thumb_up_alt
0
like
thumb_down_alt
0
dislike
231
views
1
answer
asked
Mar 20, 2018
by
anonymous
The power mentioned on the name plate of an electric motor indicates?
Last answer:
The power mentioned on the name plate of an electric motor indicates the output power available at the shaft.
power
mentioned
name
plate
electric
motor
thumb_up_alt
0
like
thumb_down_alt
0
dislike
79
views
1
answer
asked
Mar 18, 2018
by
anonymous
An electric motor in which both stator field and rotor rotates with same speed is called?
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.
electric
motor
stator
field
rotor
rotates
speed
thumb_up_alt
0
like
thumb_down_alt
0
dislike
92
views
1
answer
asked
Mar 10, 2018
by
anonymous
How can a magnetic field be used to generate an electric current?
How can a magnetic field be used to generate an electric current?
Last answer:
Magnetic field can be used to generate electric current on a condition that it is on a rate of changing magnetic flux. (Faraday's law)
magnetic
field
used
generate
electric
current
thumb_up_alt
0
like
thumb_down_alt
0
dislike
89
views
1
answer
asked
Aug 14, 2019
by
anonymous
What is mean by electric network?
Last answer:
Any electric network may be defined as a combination of a number of electric elements.
electric
network
thumb_up_alt
0
like
thumb_down_alt
0
dislike
44
views
1
answer
asked
Jun 28, 2019
by
anonymous
What is the unit of electric current?
A) Watt B) Volts C) Farad D) Ampere
Last answer:
Correct answer: D) Ampere
electric
unit
current
thumb_up_alt
0
like
thumb_down_alt
0
dislike
2.5k
views
1
answer
asked
Jun 28, 2019
by
anonymous
What is the unit of electric power?
Options: A) WATT B) AMPERE C) VOLTS D) OHM
Last answer:
Correct Answer: A) WATT
electric
power
unit
thumb_up_alt
0
like
thumb_down_alt
0
dislike
61
views
1
answer
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
thumb_up_alt
0
like
thumb_down_alt
0
dislike
46
views
1
answer
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
thumb_up_alt
0
like
thumb_down_alt
0
dislike
100
views
1
answer
asked
Dec 16, 2017
by
anonymous
What is electric power generation transmission and distribution?
What is electric power generation transmission and distribution?
Last answer:
Generation: it wrong word at here.because it is no generation it is conversion of one form of energy into electrical form.it may by using any type of energy. Transmission is just to ... place to other by providing some modifications And distribution means use of this energy for any purpose.
electric
power
generation
transmission
distributio
thumb_up_alt
3
like
thumb_down_alt
0
dislike
124
views
1
answer
asked
Dec 4, 2017
by
anonymous
what are the three different types of Electric power?
what are the three different types of Electric power?
Last answer:
Real,reactive,apparent power
types
electric
power
thumb_up_alt
3
like
thumb_down_alt
0
dislike
113
views
2
answers
asked
Jan 2
by
anonymous
List types of electric furnace.
List types of electric furnace.
Last answer:
Three Types of Electric furnaces: 1. Induction heating furnace. 2. Resistance heating furnace. 3. Arc furnace.
electric
furnace
thumb_up_alt
0
like
thumb_down_alt
0
dislike
9
views
1
answer
asked
May 7, 2020
by
anonymous
Select insulating materials for following parts : (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.
Select insulating materials for following parts : (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.
Last answer:
Parts Insulating Materials Insulation between heating element and base plate of electric iron. Mica Insulation used over copper or aluminium conductor used for making coils. ... Transformer bushings Porcelain Insulation between transmission line and pole. Porcelain
heating
element
and
base
plate
of
electric
iron
ii
used
over
copper
thumb_up_alt
0
like
thumb_down_alt
0
dislike
68
views
1
answer
asked
May 7, 2020
by
anonymous
State any Four lE Rules regarding electric safety.
State any Four lE Rules regarding electric safety.
Last answer:
lE Rules regarding electric safety: 1. IE Rule 3 : Authorization 2. IE Rule 29 : Construction and maintenance of electrical supply line and apparatus 3. IE Rule 30: Service line and apparatus on ... 26. IE Rule 60: Test for resistance of insulation 27. IE Rule 61: Connection with earth
state
any
four
le
rules
regarding
electric
safety
thumb_up_alt
0
like
thumb_down_alt
0
dislike
44
views
1
answer
asked
Apr 8, 2020
by
anonymous
Electric Power
Electric Power
Last answer:
Electric Power
electric
power
thumb_up_alt
0
like
thumb_down_alt
0
dislike
78
views
1
answer
asked
Aug 21, 2019
by
anonymous
advantages of DVM over electric voltmeter?
advantages of DVM over electric voltmeter?
Last answer:
Advantages: 1) In case of digital volt meter the output signals is available in the form of discrete numerical. Where as in analog voltmeter, output is made available by using pointer ... using a suitable transducer the quantities such as temperature, pressure, etc. can also be measured.
dvm
electric
voltmeter
thumb_up_alt
0
like
thumb_down_alt
0
dislike
99
views
1
answer
asked
Aug 17, 2019
by
anonymous
State Ohm’s law for electric circuit.
State Ohm’s law for electric circuit.
Last answer:
Ohms law -States that the current flows in a circuit is directly proportional to the applied voltage (V) and inversely the proportional resistance provided with the temperature main constant
electric
circuit
thumb_up_alt
0
like
thumb_down_alt
0
dislike
54
views
2
answers
asked
Aug 17, 2019
by
anonymous
With proper reason suggest type of enclosure for electric drives used in coal mines.
With proper reason suggest type of enclosure for electric drives used in coal mines.
Last answer:
Flame-proof type of enclosure for electric drives is used in coal mines. Reason: - Coal mines are very hazardous, prone to flame and explosions. Under such conditions, flame proof type ... them (due to arcs, sparks, or flashes) without igniting the surrounding flammable gases or vapors.
electric
drives
thumb_up_alt
0
like
thumb_down_alt
0
dislike
35
views
1
answer
Install Now
...