'Potential transformers' (US terminology) or 'voltage transformers' (UK terminology) are, together with 'current Transformers', collectively called 'instrument transformers', and are used to safely measure/monitor voltages and currents in high-voltage systems.
Potential transformers are used to reduce the voltage-level of a high-voltage circuit to a lower voltage which can then be read using an ordinary voltmeter; at the same time, it electrically-isolates the high-voltage system for the purpose of safety. Potential transformers, together with current transformers, can also be used to operate wattmeters, or to supply protective relays.
potential transformer is to maser and protection purpose the ivt is used for synchronicing purpose
Control transformer used only for control supply 110,220, 24,12V AC. But Potential transformer used voltage measurement purpose.
A potential transformer steps the high voltage down to a level of 120 V to measure them safely and easily.
transformer coupling ensures maximum power transfer is obtained even if the output impedance is not equal to the load impedance
The difference between a double wound step up transformer and an auto transformer is the double wound on the step up transformer and the single wound on the auto transformer.
A CT allows:heavy currents to be measured using conventional ammeters, andelectrically-isolates the ammeters from high-voltage primary circuits.
The difference between current transformer and potential transformer is that the secondary of a current transformer can not be open circuited while under service whereas that of the potential transformer an be open circuited without any damage to the transformer.
potential transformer is to maser and protection purpose the ivt is used for synchronicing purpose
The main advantage is that the 'footprint' of a three-phase transformer is smaller than a transformer bank, and all connections are prewired which makes them easier and quicker to install and replace.
Control transformer used only for control supply 110,220, 24,12V AC. But Potential transformer used voltage measurement purpose.
Both are same. This is an instrument transformer used for metering & protections.
CT=========current transformer PT=========potential transformer these are the instrumental transformers.
advantages for automatic load sharing of transformer with protective analysis
The usage of transformer is to produce electricity from a main electric unit
I'm not quite sure what you mean by a "potential transformer", but I look at it this way: The transformer isn't aware of the purpose to which you're putting it, so no matter what you call the function, the transformer continues to perform it ... transforming voltages and impedances in proportion to the turns ratio, and currents in proportion to its inverse.
A potential transformer steps the high voltage down to a level of 120 V to measure them safely and easily.
A capacitive voltage transformer (CVT) uses a (usually two) stacks of capacitors to reduce the votlage to a smaller internal potential transformer (PT). This makes them less expensive than an equivalent PT, but there can be a loss of accuracy.