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Tap changers

Our test solutions for this highly important component of a transformer. This portfolio features advanced technologies such as one-touch OLTC testing and dynamic resistance measurements.

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All Transformers Dry-type Oil-filled Special xfmrs (phase-shifting, regulator, grounding xfmr, padmount, rectifier, arc furnace) Bushings Tap changers
  • Show discontinued products

Power transformer test van

Comprehensive, portable transformer testing
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MTO250

50 A transformer ohmmeter
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MTO210

Transformer ohmmeter
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TOS1

Transformer ohmmeter standard
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TRAX Multifunction transformer and substation test system

Portable and compact system packed with features that maximize asset condition awareness
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TTRU3 True three-phase transformer turns ratio tester

Megger's TTRU3 guarantees a transformer turns ratio accuracy of ±0.05 %
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MTO300 series

Automated six-winding transformer ohmmeters
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Bushing Accessories

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PowerDB Pro

Asset and test data management software
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TAU3 true three-phase transformer winding analyzer

Transformer diagnostics in a single instrument
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TTRU1 handheld transformer turns ratiometer

Handheld, battery-operated transformer turns ratiometer
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