Megger MTO210 transformer ohmmeter

Key features of Megger’s MTO210 transformer ohmmeters: 

• Dual channel operation saves time
• Bidirectional current output capabilities allow users to use existing magnetisation in the winding core to aid rapid current stabilisation
• Provides fast, dependable indication of pitted or misaligned contacts when used to check contact resistance of make-before-break tap changes and voltage regulators
• Built-in discharge circuit safely discharges the specimen when test is completed, if lead accidentally disconnects or if power is lost
• Offers facilities for demagnetising winding cores before or after resistance testing is carried out
• Can also be used as a standalone core demagnetiser
• Four user-selectable output current ranges, ranging from 10 mA up to 10 A
• High-contrast large alphanumeric displays can be viewed in bright sunlight
• User-selectable maximum current range ensures protection of small transformers
• Safety interlock circuit provided for users who choose to create an external interlock safety perimeter  
• Remote trigger switch provided for testing transformers with tap-changers
• Ruggedised Kelvin clamps with 4-inch jaws are provided, eliminating the need for bushing adapters
• Wide resistance range
• Large LCD display for test results
• Test results can also be stored in the instrument’s internal memory for printing or downloading
• Fully compatible with Megger’s PowerDB Lite software for test result analysis and reporting
• Weighs less than 30 lbs
• Built into a rugged case with a hinged lid and handle for use onsite or in the workshop

Megger MTO210 applications: 

• Verify factory test readings
• Part of a regular maintenance program
• Help locate the presence of defects in transformers such as loose connections
• Check the ‘make-before-break’ operation of on-load tap-changers