What is the difference between voltage transformer and
potential transformer?

Answers were Sorted based on User's Feedback



What is the difference between voltage transformer and potential transformer?..

Answer / shobana

Both are same. They are used in transmission lines for the
purpose of measurement and protection. Their primary is
connected between phase.The voltage is stepped down and the
secondary voltage is used for the above mention
purpose.Compared to power transformers, they have leeser VA
burden

Is This Answer Correct ?    143 Yes 47 No

What is the difference between voltage transformer and potential transformer?..

Answer / venkatesh

voltage transformer is used for distribution of voltage
only but the potential transformers used for measuring
and protection purpose.

Is This Answer Correct ?    133 Yes 54 No

What is the difference between voltage transformer and potential transformer?..

Answer / biswanath das

Voltage transformer is used for protection of high voltage
distribution transformer. It Compare the primary and
secondary voltage ratio of a transformer and to maintain
fixed voltage at secondary terminal, it sense to auto tap
changer of the transformer to maintain fixed voltage during
no load to full load.
Potential transformer is used for measuring heigh voltage.
It's Primery windings is connected to the high voltage
source & secondary voltage is only 110 volts

Is This Answer Correct ?    71 Yes 35 No

What is the difference between voltage transformer and potential transformer?..

Answer / trevor

I'm not entirely sure about what you're asking, since
the "best" answer is pertaining to a CT, instead of a
PT/VT, but a potential transformer and a voltage
transformer are the same thing. They differ from a current
transformer. Both are used for metering and protection.

A PT is used to find out the voltage at a specific
location, and a CT is used to find the current travelling
through a specific conductor.

A PT is connected across two points, to find the voltage
between them. A CT works a little different. There are a
few different types (clamp-on/split-core, Hall effect,
optical), but essentially, a single conductor is passed
through the core of the CT and a current is induced in the
wires wrapped around the core. This current is
proportional to how many turns is around the core.

Is This Answer Correct ?    64 Yes 28 No

What is the difference between voltage transformer and potential transformer?..

Answer / ajay kumar rathore

Potential transformer is a type of transformer basically
used for measurement of voltage in substation type area. It
is a step down transformer. In order to receive lesser
voltage on secondary side the turn ratio is generally kept
like 1000:1. Hence by measuring the secondary voltage we
can proportionally get the value of primary voltage.

Is This Answer Correct ?    17 Yes 5 No

What is the difference between voltage transformer and potential transformer?..

Answer / anand kumar c

Both potential transformer and voltage transformers are
same. In some of the areas we will be mentioning it as a
voltage transformer(especially in measuring purpose). Both
are used for the measuring and protection purpose only(as i
mentioned same). these transformers step down the higher
voltages (primary voltages can be in kv's)to measurable
voltages(standard sec voltages are 110v, 100v, 63.5v,
57.7v ) in measuring instrument like voltmeter,
multimeter.

Is This Answer Correct ?    17 Yes 6 No

What is the difference between voltage transformer and potential transformer?..

Answer / sanjay

which voltage transformer? wherw it use? please give detail?

Is This Answer Correct ?    71 Yes 64 No

What is the difference between voltage transformer and potential transformer?..

Answer / randall christiansen

A potential transformer is a type of voltage transformer.
In other words, all potential transformers are voltage
transformers, but not all voltage transformers are
potential transformers.

All pts are inductive and connect directly to the primary
voltage. Some vts, such as cvts, connect to the primary
voltage through a capacitor, and are not inductive.

Both are generally used for the same function, to convert
the primary voltage to a smaller, readable secondary
voltage to be used for relaying, metering, or station
service.

Is This Answer Correct ?    24 Yes 17 No

What is the difference between voltage transformer and potential transformer?..

Answer / thomas floyd

The principal difference between a voltage transformer and
potential transformer is its purpose. In general, a
voltage transformer is used to deliver power. A potential
transformer is used to provide a signal voltage to a meter
or protective relay. Potential transformers almost always
have a primary to secondary voltage ratio to step down a
higher voltage to 120 Vac. Thus, the deviation of its
secondary voltage from 120 Vac signals a deviation of the
higher voltage from its normal value.

Is This Answer Correct ?    5 Yes 0 No

What is the difference between voltage transformer and potential transformer?..

Answer / abhinav gupta

a potential transformer is used to measure high voltages,
the output of a typical potential transformer may be 110v,
where as its high voltage side can be in kvs (11,33,110,220
etc.)in other words pts are only step down, now voltage tfs
are devices which either step up or step down voltages of
an electric current.

Is This Answer Correct ?    14 Yes 13 No

Post New Answer

More Electrical Engineering Interview Questions

Show Details FROM:Muhammed Ikram TO:qa@allinterview.com Message flagged Saturday, June 4, 2011 10:07 PMMessage bodyHello all, i want to ask a question to all of you that what is VMM (voltage monitoring module )? how it work,s? i heard somewhere that it compare 1 phase voltage to other phase voltage. but there is also some setting on it. how to set it,s setting. please tell me briefly. Thank,s and Regard,s. Muhammed Ikram.

0 Answers  


whats the formula for convert KVAR to FARADS

2 Answers  


dear friends plz send link about reluctance & universal motor .thank u

4 Answers  


what is the difference between potential Transformers and capacitive voltage transfoemers and where it is used?

5 Answers  


difference between buscoupler & bussection?

1 Answers  






why the motor running in delta connection ? it can be in star?

13 Answers   NTPC,


What is an Isolation Transformer? Where it will use?

3 Answers  


Could explain briefly of over excitation in transformer.

2 Answers   NCC,


is it possible to have dc motors on single chip

0 Answers  


what happen if the parallel generator phase angle shift by 1 degree in manual mode

0 Answers   EEEC, MEC,


how to calculate the settings for shaft ct protn in hydro generators

0 Answers  


advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)