Oltc-Transformer
In StockOLTC Transformers – Automatic On-Load Tap Changers for Seamless Voltage Regulation
Our OLTC (On-Load Tap Changer) Transformers are engineered to provide uninterrupted voltage regulation, ensuring stable and efficient power distribution.
With advanced automatic tap-changing mechanisms, these transformers adjust voltage levels without interrupting the power supply, making them ideal for industrial, commercial, and utility applications.
Built for durability and high performance, OLTC transformers reduce energy losses and maintenance costs.
Experience reliable and efficient power management with our cutting-edge solutions.
Product Specification
Voltage Rating: Operates up to 220 kV (customizable for higher systems).
Capacity Range: From 100 kVA to 250 MVA, depending on application.
Frequency: Standard 50 Hz or 60 Hz as per system requirements.
Tap Positions: Typically 17–33 steps (±10% voltage regulation in 1.25% or 2.5% increments).
Short-Time Current: Withstands up to 40 kA for 3 seconds.
Cooling Type: ONAN/ONAF/OFAF (Oil Natural or Oil Forced cooling).
Insulation Level: Impulse withstand voltage of 850 kV BIL for higher ratings.
Switching Operations: Designed for over 500,000 switching cycles for reliable performance.
