Voltage fluctuations and changing load conditions require effective voltage regulation to maintain grid stability. OLTC (On-Load Tap Changer) allows tap changes without interrupting power supply, while DETC (De-Energized Tap Changer) operates when the transformer is disconnected. Selecting the right solution improves voltage control, enhances transformer efficiency, and supports relia... https://emr.global/oltc-detc-for-power-transformers/