DESCRIPTION
The MTO250 Transformer Ohmmeter is a line-operated, field- portable instrument designed specifically to measure the resistance of all types of magnetic windings safely and accurately. It tests transformers, shunt reactors, rotating machine windings and performs low resistance measurements on connections, contacts and control circuits.
Capable of testing transformers up to 1000 MVA
■■ DC test current up to 50 A maximum
■■ Integrated demagnetization feature
■■ Computer control and internal data storage
■■ Validates proper operation of on-load tap-changers
■■ Protected against accidental current lead disconnection (through potential leads)
