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Megger Transformer Ohmmeter MTO106 Series


The MTO106 transformer ohmmeter is an easy-to-use instrument for safe and accurate measurement of winding resistance in distribution transformers, reactors, instrument transformers, motors, and generators. It can also be used to check wiring and all types of connections. The test current can be manually set in five different ranges to fit transformers of various sizes.

A single switch selects test current and a single button activates the test cycle. The instrument is supplied with test leads fitted with Kelvin clamps. The test leads are 10 m (33 ft) in length to allow for easy testing of pole-mounted transformers. An automatic discharge function de-energizes the transformer winding at the end of every test. The discharge function is passive so it also functions if there is an inadvertent loss of power or if the test or mains leads are accidentally pulled

  • 2 channels with max 6A current output
  • 48V test voltage for fast saturation of transformer
  • Intuitive multimeter-like operation
  • ±0.25% measurement accuracy
  • Automatic passive discharge circuitry
  • Rugged IP67 case
Megger MTO106 Series Transformer Ohmmeter Specs

Catalog Page 173b                             Megger-MO106 Datasheet


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Item # Description
ME/BN-19090MTO106 Ohmmeter with leads & carry bag
ME/BN-19000MTO106 Ohmmeter without leads or bag
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