What is OLTC AND RTCC and it's function?

Answer Posted / bala

OLTC means On Load Tap Changer and It is coming with transformer. If it is fitted, no need to worry about the incoming voltage whether it is high or low as the transformer will automatically change its tap position to deliver the constant output voltage.This is possible only when we interface the AVR to it.

RTCC means Remote Tap Changer Control Panel. We can change the transformer tap position from remote area. This is possible only when the interfacing between OLTC and RTCC has been done.

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