What is Isolation Transformer???
Answers were Sorted based on User's Feedback
Answer / thowsif_emerson_csm team
Isolation transformer means that no direct electrical
connection exists between source and load. But that's true
for any transformer (other than an autotransformer). What
makes the drive isolation transformer different is the
placement of grounded electrostatic (Faraday) shielding
between and around primary and secondary windings. That
provides up to a million-fold decrease in the capacitive
coupling involved in transferring common-mode voltage
disturbance. Without such shielding, that capacitance
allows passage through the transformer of high-
frequency "noise" and transient voltage spikes.
Is This Answer Correct ? | 10 Yes | 1 No |
Answer / jaggu
for isolating DC while permitting the flow of AC between two circuits for isolating one ckt frm the other.
Is This Answer Correct ? | 5 Yes | 0 No |
Answer / phani
An Isolating t/f is one in which the primary and secondary winding turns ratio is 1:1 . so it does not either steps up or steps down the voltage levels but it just isolates the source and load connected to the transformer. I think we cannot find an isolating transformer in practice.
Is This Answer Correct ? | 5 Yes | 1 No |
Answer / patelsheleph
An isolation transformer does not have a direct electrical
path from the power input side to the power output side. The
term is also used to define how much electrical isolation
exists between the input and output windings. For example
when using line-voltage input transformers to power low
volatge device handled by humans, a high degree of isolation
is required for safety.
Isolated transformers often use separate bobbins for the
primary and secondary coil windings, but usually the
windings are just wound on top of each other with insulation
in between.
Non-Isolated transformers are becoming rare. A common
example is the "Variac" which is a non-isolated variable
transformer. Usually the term "auto-transformer" is used to
describe non-isolated transformers. They are rarely found in
consumer products.
Although any transformer with a separate primary and
secondary winding is an isolation transformer to some
extent, The term is usually used to denote a special-purpose
transformer built just for that use. It is tested and rated
to withstand a very high voltage difference, called the
withstand voltage, so that even if thousands of volts are
applied to the primary, it will not leak through to the
protected side. These transformers are used in the medical
industry, to protect patients hooked up to monitoring
instruments that are powered by utility mains, as well as
other uses.
Is This Answer Correct ? | 4 Yes | 3 No |
WHY WE ARE DOING THE EARTHING IN A SYSTEM. SOME PEOPLE ARE TELLING FOR PROTECTION. WHAT PROTECTION GIVE ME THE CORRECT ANSWER.
AC is the magnitude of sinosudial-wave but we use cose value to determine power factor instead of sine value.
Name different types of fault and which instrument is used to measures earth,short,open cicuit fault?
6 Answers NTPC, Vijai Electricals,
why the capacitor bank unit is kvar
what is upper impedance and lower impedance of a distance relay
what is maximum demand.
usually why bettery voltage are 1.5V, even if you open a 9V battery there are six 1.5V batteries in series. is it not possible to increase this voltage other than putting in series
difference between ac motor and dc motor
if 300 hrs not comleted at wat interval b.c,d checks og take place
Give a brief idea about Control circuit wiring in Substation...???
what is the instrument used for measuring insulator RESISTANCE
why the 4 terminal are named as main, line, common, voltage (M, L, C, v) of a wattmeter?? why not its nameed as A,B,C,D??