The TTRU1 is the latest handheld transformer turns ratiometer from Megger. In addition to routine polarity validation and turns ratio tests, the TTRU1 can measure short-circuit impedance (leakage reactance) with the same one-time connection.
Guided by colour-coded leads, clamps, and customisable on-screen vectors that match the transformer nameplate under test, the easy-to-follow setup ensures the right result the first time.
Perform up to 1000 turns ratio tests on a single NiMH AA battery charge. When it’s time to recharge the batteries, connect to any standard USB wall charger, or connect to your PC. When connected to the PC, TTRU1-EXP results can be downloaded, and the user guide and data sheet can also be accessed.
The MTOU3 uses a safe, one-time connection for complete winding resistance assessment of power, distribution, and instrument transformers with automatic adaptive demagnetisation, eliminating the risk of tripping system protection when the transformer is put back into service.
Perform vector confirmation, winding resistance, and demagnetisation tests with the same one-time lead connection.
Guided by color-coded leads and extendable clamps with on-screen vectors that match the transformer nameplate, the easy-to-follow setup ensures the right result the first time - just click start!
Auto vector confirmation before every test ensures that the proper transformer vector is selected.
The MTO106 transformer ohmmeter is an easy-to-use, line-operated instrument specifically designed for safe and accurate field measurement of winding resistance in smaller transmission and distribution transformers. It has dual channels with a measurement range and accuracy suited to providing accurate information about the vast majority of power transformers, reactors, and instrument transformers. The test current can be manually set in five different ranges to fit transformers of various sizes.
The instrument is exceedingly simple to use, which minimises the need for training. It has a single selector switch for test current and a single button to activate the test cycle. The instrument is also supplied with test leads fitted with Kelvin clamps that allow for a single, one-time connection to the unit under test. The test leads are 10 m (33 ft) in length to allow for easy testing of pole-mounted transformers.
The compact and lightweight instrument is housed in a rugged plastic case for true portability. When closed, the case is rated IP67, which means your instrument will always arrive safely to the testing location even in the harshest conditions.
Additionally, you are protected by an automatic discharge function that de-energises the transformer winding at the end of every test. The discharge function is passive and thus also functions if there is an inadvertent loss of power or if the test or mains leads are accidentally pulled.
