How Do OLTC and OCTC Improve Voltage Regulation in Distribution Networks?
Fluctuating load demand in distribution networks often leads to under- or over-voltage if tap changers are absent or inefficient. OLTC (On-Load Tap Changer) allows real-time voltage adjustment without interrupting service, while OCTC (Off-Circuit Tap Changer) enables precise manual setting during planned outages. Implementing the right OLTC/OCTC upgrade ensures smoother voltage profiles, reduced losses, and better service reliability for utilities and industrial feeders.