Megger MTO106 – Transformer Ohmmeter

• Measures transformer winding resistance with up to 6 A test current
• Dual-channel operation for efficient field testing
• ±0.25% measurement accuracy for reliable results
• 48 V test voltage for faster transformer saturation
• Simple single-switch operation with one-button testing
• Automatic passive discharge for enhanced operator safety
• Compact, lightweight design with rugged IP67 transport case

The Megger MTO106 Transformer Ohmmeter delivers fast and reliable winding resistance measurements for power and distribution transformers. Designed for field engineers, it combines straightforward operation with precise performance, allowing technicians to verify factory results, carry out routine maintenance checks and identify potential faults such as high contact resistance in tap changers or connections. Its dual-channel capability, adjustable current ranges and high test voltage help speed up transformer saturation and reduce testing time. Despite its powerful performance, the instrument remains compact and easy to transport, housed in a rugged case built for demanding substation environments. Contact us to see how the MTO106 can simplify transformer resistance testing in your maintenance programme.