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What do you mean by secondary instruments?
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asked
Mar 10, 2018
by
anonymous
What do you mean by secondary instruments?
secondary
instruments
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answered
Feb 4, 2020
by
anonymous
The instruments which will give the direct readings are called secondary instruments
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Related questions
asked
Sep 6, 2018
by
anonymous
State the meaning of secondary instrument. Classify secondary instruments.
State the meaning of secondary instrument. Classify secondary instruments.
Last answer:
Secondary instruments: - Gives reading directly of the quantity being measured. - Calibrated with respect to absolute instruments Classification of Secondary instruments: 1. Depending on the ... on permissible error: i) Standard meters ii) Substandard meters iii) First grade instruments.
secondary
instrument
classify
instruments
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1
answer
asked
Sep 6, 2018
by
anonymous
Compare primary and secondary instruments.
Compare primary and secondary instruments.
Last answer:
Primary instruments Secondary instruments Gives magnitude of quantity in terms of physical constants of instrument Gives reading directly of the quantity measured. Need no calibration ... . e.g. magnetic meter, induction meter, hotwire meter and electrostatic meter
compare
primary
secondary
instruments
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1
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asked
Mar 21, 2018
by
anonymous
In majority of instruments damping is provided by?
Last answer:
In the majority of instruments, damping is provided by eddy currents.
majority
instruments
damping
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190
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1
answer
asked
Mar 10, 2018
by
anonymous
What is electrical instruments?
What is electrical instruments?
electrical
instruments
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61
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0
answers
asked
May 8, 2018
by
anonymous
Permanent magnet moving coil instruments are used for
Permanent magnet moving coil instruments are used for
Last answer:
PMME are mostly used for measuring voltage and current.
permanent
magnet
moving
coil
instruments
used
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2
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asked
Mar 21, 2018
by
anonymous
Commonly used instruments in power system measurement are?
Last answer:
Commonly used instruments in power system measurement are induction.
commonly
used
instruments
power
system
measurement
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1
answer
asked
Mar 21, 2018
by
anonymous
Operating torques in analogue instruments are?
Last answer:
Operating torques in analogue instruments are deflecting, control and damping.
operating
torques
analogue
instruments
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87
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1
answer
asked
Mar 21, 2018
by
anonymous
The power factor of a single phase load can be calculated if the instruments available are?
Last answer:
The power factor of a single phase load can be calculated if the instruments available are three ammeters or three voltmeters.
power
factor
single
phase
load
calculated
instruments
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2
answers
asked
Mar 21, 2018
by
anonymous
The switch board instruments?
Last answer:
The switch board instruments should be mounted in vertical position.
switch
board
instruments
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1
answer
asked
Mar 21, 2018
by
anonymous
According to application, instruments are classified as?
Last answer:
According to application, instruments are classified as switch board, portable.
application
instruments
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1
answer
asked
Mar 21, 2018
by
anonymous
The use of which instruments is merely confined within laboratories as standardizing instruments?
Last answer:
The use of absolute instruments is merely confined within laboratories as standardizing instruments.
laboratories
standardizing
instruments
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1
answer
asked
Mar 10, 2018
by
anonymous
How instruments are classified?
How instruments are classified?
instruments
classified
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0
answers
asked
Apr 29, 2018
by
anonymous
What happens to the voltage in the secondary when the frequency of the supply in the primary is decreased?
What happens to the voltage in the secondary when the frequency of the supply in the primary is decreased? A) It increases B) It decreases C) It remains the same D) Cannot say unless the actual percentage increase in the frequency is known
Last answer:
What happens to the voltage in the secondary when the frequency of the supply in the primary is decreased? A) It increases B) It decreases C) It remains the same D) Cannot say unless the actual percentage increase in the frequency is known
voltage
secondary
frequency
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1
answer
asked
May 22, 2020
by
anonymous
Define: primary and secondary distribution system
Define: primary and secondary distribution system
Last answer:
i) Primary Distribution: It is a 3-phase, 3-wire transmission line connected in between receiving substation to Distribution substation. OR It is link between receiving substation & ... substation to consumer line. OR It is link between distribution transformer substation & consumer.
primary
secondary
distribution
system
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1
answer
asked
May 3, 2020
by
anonymous
State the losses in secondary distribution system.
State the losses in secondary distribution system.
Last answer:
The losses in secondary distribution system: a) Technical losses: 1. Due to poor voltage 2. Due to unbalance load 3. Due poor quality of transformer & its components 4. Due to poor quality ... of induction type of energy meter. 3. Lack of administration. 4. Energy theft 5. Unmetered supply
state
the
losses
in
secondary
distribution
system
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1
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asked
Sep 6, 2018
by
anonymous
State the meaning of absolute instrument and secondary instrument.
State the meaning of absolute instrument and secondary instrument.
Last answer:
Absolute instruments: These instruments read the quantity under measurement indirectly i.e. in terms of deflection, degrees and meter constant. The actual value under measurement can be calculated ... of operation (b) Depending upon permissible percentage error. (c) Depending upon application.
meaning
absolute
instrument
secondary
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asked
Sep 6, 2018
by
anonymous
Why CT is never operated with an open secondary ?
Why CT is never operated with an open secondary ?
Last answer:
CT secondary should never be kept open because it will cause saturation of the core to a high level and very high voltage will appear across the secondary which can breakdown the insulation. One terminal of PT secondary is always grounded to avoid capacitive induction and for human safety
ct
operated
open
secondary
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2
answers
asked
Sep 5, 2018
by
anonymous
Write difference between absolute & secondary instrument.
Write difference between absolute & secondary instrument.
Last answer:
Absolute Instrument Secondary Instrument 1. These give magnitude of quantity in terms physical constants of instruments 1. These give reading directly of the quantity at the time of ... Raleigh current balance. 6. Examples - ammeter, voltmeter, amperehour meter, wattmeter etc.
difference
between
absolute
secondary
instrument
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1
answer
asked
May 8, 2018
by
anonymous
Which of the following connection of transformers will give highest value of secondary voltage ?
Which of the following connection of transformers will give highest value of secondary voltage ? (A) Delta primary delta secondary (B) Delta primary star secondary (C) Star primary star secondary (D) Star primary delta secondary
Last answer:
Which of the following connection of transformers will give highest value of secondary voltage ? (A) Delta primary delta secondary (B) Delta primary star secondary (C) Star primary star secondary (D) Star primary delta secondary
connection
transformers
highest
value
secondary
voltage
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110
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1
answer
asked
May 8, 2018
by
anonymous
Increasing the number of turns of wire on the secondary of a transformer will
Increasing the number of turns of wire on the secondary of a transformer will (A) Decrease the secondary current (B) Increase the primary current (C) Have no effect on the secondary current (D) Increase the secondary current
Last answer:
Increasing the number of turns of wire on the secondary of a transformer will Decrease the secondary current
increasing
number
turns
wire
secondary
transformer
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1
answer
asked
May 8, 2018
by
anonymous
A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts
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
transformer
secondary
winding
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1
answer
asked
Apr 29, 2018
by
anonymous
If an unsymmetrical line to ground fault occurs at the secondary terminals of a delta/star, ungrounded
If an unsymmetrical line to ground fault occurs at the secondary terminals of a delta/star, ungrounded transformer, then (A) zero sequence currents are present on both sides of the transformer (B) zero sequence currents are absent on both sides of the transformer (C) zero sequence currents are present on the secondary side but not on the primary side (D) zero sequence currents are present on the primary side but not on the secondary side
Last answer:
If an unsymmetrical line to ground fault occurs at the secondary terminals of a delta/star, ungrounded transformer, then zero sequence currents are absent on both sides of the transformer
unsymmetrical
line
ground
fault
secondary
terminals
delta
star
transformer
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1
answer
asked
Mar 19, 2018
by
anonymous
When secondary of a current transformer is open-circuited its iron core will be?
When secondary of a current transformer is open-circuited its iron core will be?
Last answer:
When secondary of a current transformer is open-circuited its iron core will be hot because of heavy iron losses taking place in it due to high flux density.
secondary
current
transformer
open-circuited
iron
core
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1
answer
asked
Mar 19, 2018
by
anonymous
The secondary of a current transformer is always short-circuited under operating conditions because it?
The secondary of a current transformer is always short-circuited under operating conditions because it?
Last answer:
The secondary of a current transformer is always short-circuited under operating conditions because it avoids core saturation and high voltage induction.
secondary
current
transformer
short-circuited
operating
conditions
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1
answer
asked
Mar 19, 2018
by
anonymous
In a transformer the resistance between its primary and secondary should be?
In a transformer the resistance between its primary and secondary should be?
Last answer:
In a transformer the resistance between its primary and secondary should be infinity.
transformer
resistance
between
primary
secondary
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101
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1
answer
asked
Apr 8, 2020
by
anonymous
Electrical Measuring Instruments
Electrical Measuring Instruments
Last answer:
Electrical Measuring Instruments
electrical
measuring
instruments
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78
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2
answers
asked
Aug 21, 2019
by
anonymous
Compare analog and digital instruments .
Compare analog and digital instruments .
Last answer:
Parameter Analog Instrument Digital Instrument 1 Principle The instrument that displays analog signals is called as on analog instrument. The instrument that displays ... , etc. Logical analyzer, signature analyzer, computers, microprocessor based instruments, etc.
analog
digital
instruments
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130
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1
answer
asked
Aug 21, 2019
by
anonymous
calibration and the need of calibration for measuring instruments.
calibration and the need of calibration for measuring instruments.
Last answer:
Calibration - It is a process of estimating the value of a quantity by comparing that quantity with a standard quantity. Need of calibration: - Calibration defines the accuracy and ... aim of calibration is to minimize any measurement uncertainty by ensuring the accuracy of test equipment.
measuring
instruments
calibration
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63
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1
answer
asked
Aug 21, 2019
by
anonymous
Advantages of digital instruments
Advantages of digital instruments
Last answer:
1. They are having high input impedance, so there is no loading effect 2. They are having higher accuracy 3. An unambiguous reading is obtained 4. The output can be interfaced with external equipment 5. They are available in smaller size .
digital
instruments
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1
answer
asked
Jul 27, 2019
by
anonymous
State the effect of dead zone on instruments.
State the effect of dead zone on instruments.
Last answer:
It is the largest change in input during which the output remains constant. So during dead zone, even if input changes, output remains the same.
dead
zone
instruments
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1
answer
asked
Jul 27, 2019
by
anonymous
Define: i) Range ii) Span of instruments
Define: i) Range ii) Span of instruments
Last answer:
i) Range: It is defined as the difference between Greatest and Smallest value of the data or reading of the instrument. ii) Span: It is defined as the algebraic difference between the upper and lower range values
range
instruments
span
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1
answer
asked
Sep 6, 2018
by
anonymous
Explain the essential toques in analog type measuring instruments.
Explain the essential toques in analog type measuring instruments.
Last answer:
List of torques in analog instruments: 1. Deflecting torque 2. Controlling / Restraining torque. 3. Damping torque. 1. Deflecting torque: To create deflection proportional to ... the speed higher will be the damping torque bringing the pointer to the equilibrium position quickly.
essential
toques
analog
type
measuring
instruments
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198
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1
answer
asked
Sep 6, 2018
by
anonymous
State two purposes of calibration of measuring instruments.
State two purposes of calibration of measuring instruments.
Last answer:
Purposes of calibration of measuring instruments: - The purpose of calibration is to ensure that readings of an instrument are consistent with other instruments. It is also important in determining the ... will need to be calibrated periodically to make sure it can function properly and safely.
calibration
measuring
instruments
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45
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1
answer
asked
Sep 6, 2018
by
anonymous
List three types of errors in measuring instruments. Give reasons of occurring for any one of them.
List three types of errors in measuring instruments. Give reasons of occurring for any one of them.
Last answer:
Types of errors in measuring instruments: A) Gross error: These are due to mistakes on the part of person using the instrument. B) Systematic Error: i) Instrumental Error: These ... multiplying factor. C) Random error: These persist even after gross and systematic errors are removed.
errors
measuring
instruments
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67
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1
answer
asked
Sep 6, 2018
by
anonymous
Define following terms related to measuring instruments: i) Sensitivity ii) Selectivity.
Define following terms related to measuring instruments: i) Sensitivity ii) Selectivity.
Last answer:
i) Sensitivity: It is the ratio of the change in output signal to the change in input signal of quantity being measured. ii) Selectivity: It is the term to describe fulfillment of the requirements of measurement by an instrument to be suitable for use in a given situation.
measuring
instruments
sensitivity
selectivity
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82
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1
answer
asked
Sep 6, 2018
by
anonymous
List out any four effects of electric current used in measuring instruments & write name of meter working on it.
List out any four effects of electric current used in measuring instruments & write name of meter working on it.
Last answer:
Effects of Electric Current used in measuring instruments: 1. Magnetic Effect: PMMC and Moving Iron type Ammeters, voltmeter and Dynamometer type wattmeters etc. 2. Electromagnetic induction ... . Electrostatic effect: Voltmeters. 5. Hall Effect: Flux meter, Poynting vector wattmeter.
electric
current
measuring
instruments
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413
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1
answer
asked
Sep 6, 2018
by
anonymous
Describe systematic errors in measuring instruments.
Describe systematic errors in measuring instruments.
Last answer:
Systematic errors: - ➢ Instrumental Error: These errors are caused due to the mechanical structure of measuring instrument. a) Inherent shortcomings of instruments: Instrument may read ... or electrostatic fields. ➢ Observational Error: Parallax errors, incorrect multiplying factor.
systematic
errors
measuring
instruments
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53
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1
answer
asked
Sep 5, 2018
by
anonymous
State the material used for moving coil and former for PMMC instruments.
State the material used for moving coil and former for PMMC instruments.
Last answer:
Material Used for Moving Coil and Former for PMMC Instruments: Material used for moving coil: Copper Material used for Former: Aluminium
material
used
moving
coil
pmmc
instruments
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115
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1
answer
asked
Sep 5, 2018
by
anonymous
List any four effects employed in measuring instruments.
List any four effects employed in measuring instruments.
Last answer:
Effects Employed in Measuring Instruments: 1. Magnetic Effect 2. Electromagnetic induction 3. Heating effect 4. Electrostatic effect 5. Hall Effect
effects
employed
measuring
instruments
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75
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1
answer
asked
Aug 25, 2017
by
anonymous
Standard Commands for Programmable Instruments (SCPI)
Standard Commands for Programmable Instruments (SCPI)
Last answer:
Standard Commands for Programmable Instruments (SCPI) SCPI stands for Standard Commands for Programmable Instruments it is often pronounced as Skippy. SCPI is a instrument language that control the ... is for storing data in instrument. Display : for presentation.
standard
commands
programmable
instruments
scpi
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2
answers
asked
6 days
ago
by
anonymous
What do you mean by ‘Density of Population’? (1) Ratio of people living below poverty line to total population (2) Number of persons live per square kilometre (3) Number of persons in a city (4) Number of persons living per kilometre
What do you mean by ‘Density of Population’? (1) Ratio of people living below poverty line to total population (2) Number of persons live per square kilometre (3) Number of persons in a city (4) Number of persons living per kilometre
Last answer:
Number of persons live per square kilometre
world-geography
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3
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1
answer
asked
May 2, 2020
by
anonymous
What do you mean by active filter? State its advantages over passive filter . Define pass band & stop band with respect to filter.
What do you mean by active filter? State its advantages over passive filter . Define pass band & stop band with respect to filter.
Last answer:
Active Filter: Active Filter is formed by using active element along with the passive components. Advantages of Active filter over Passive filter: High value of pass band gain can be obtained. It is ... pass band. Stop Band Filter: The frequency range which is attenuated is known as stop band.
active
filter
state
its
advantages
over
passive
define
pass
band
&
stop
with
respect
to
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62
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1
answer
asked
Apr 28, 2020
by
anonymous
What do you mean by exciting resistance and exciting reactance?
What do you mean by exciting resistance and exciting reactance?
what
do
you
mean
by
exciting
resistance
and
reactance
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82
views
0
answers
asked
Jul 21, 2019
by
anonymous
What do you mean by simulation? Why it is necessary?
What do you mean by simulation? Why it is necessary?
Last answer:
Simulation is functional emulation of a circuit design through software programs that use models to replicate how a device will perform in terms of timing and results. It should be ... Simulation is used for design verification: Validate assumptions, Verify logic, Verify performance (timing)
simulation
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2.5k
views
1
answer
asked
Sep 7, 2018
by
anonymous
What do you mean by bilateral network and unilateral network?
What do you mean by bilateral network and unilateral network?
Last answer:
Bilateral Network: An element whose response is independent of direction of current flowing through it is called Bilateral element and the network, which contains only bilateral elements, is called ... response depends on the direction of current flowing through it, is called unilateral network.
bilateral
network
unilateral
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2.5k
views
1
answer
asked
Apr 3, 2018
by
anonymous
What do you mean by Reactive in Real Time. Cite an example.
Distributed under Creative Commons Attribution-ShareAlike - CC BY-SA.
Last answer:
Many embedded systems must continually react to changes in the system's environment and must compute certain results in real time without delay. For example, a car's cruise controller continually monitors and ... user, typically does not result in a system failure. Version 2 EE IIT, Kharagpur
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114
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1
answer
asked
Mar 22, 2018
by
anonymous
What do you mean by biasing of a transistor?
What do you mean by biasing of a transistor?
biasing
transistor
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74
views
0
answers
asked
Mar 11, 2018
by
anonymous
What do you mean by linear convolution?
What do you mean by linear convolution?
linear
convolution
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56
views
0
answers
asked
Mar 11, 2018
by
anonymous
What do you mean by signal processing?
What do you mean by signal processing?
signal
processing
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56
views
0
answers
asked
Mar 11, 2018
by
anonymous
What do you mean by signal and system?
What do you mean by signal and system?
signal
system
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48
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0
answers
...