What is the difference between an IVT and CVT transmission?

CVT - Capacitive Voltage Transformer

Used for Measuring Voltage & Protection purpose, It is specially used in the line side along with PLCC (Power line Carrier Communication) to block the high voltage and makes the level to acceptable form of the communication equipment.

IVT - Induced Voltage Transformer

Please any one explain it...

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Gokulakannan E