OLTC vs OCTC – Which Tap Changer Is Right for Power Transformers?
Incorrect selection between OLTC and OCTC can lead to voltage instability, frequent outages, and higher maintenance. EMR Global’s OLTC and OCTC solutions for power transformers are designed for precise voltage regulation based on load conditions. OLTC allows tap change under load, while OCTC requires shutdown—EMR helps utilities choose the right solution for reliability and efficiency.