Posts tagged as motor

Hand-held multifunctional motor tester

The new Megger Baker MTR105 hand-held motor tester is designed for multifunctional tests on motors, making it an all-in-one device. This dedicated static motor tester includes Megger’s tried and trusted suite of insulation resistance tests plus the traditional features of Megger’s testers. The device, which incorporates DLRO four-wire Kelvin low-resistance test, inductance and capacitance tests […]

Winding resistance testing of motors

Winding resistance measurements detect various faults in motors and transformers: shorted turns, loose connections, broken strands and malfunctioning tap changer mechanisms. Winding resistance measurements detect problems in motors which other tests may not find. These problems include partial or fully shorted coils, poor crimps or connections, imbalance between phases (improper turns on phases) and incorrect […]

DC traction motor test rig

PPE and African Traction Systems worked together to build a system for traction motor load testing for PRASA. The system is completely automated, allowing the operator to monitor the system and input test parameters. The system will be able to perform multiple tests required by the end user, as well as automatically generate reports based on the tests. Safety […]

Sugar mill alternator rewind

  Marthinusen & Coutts recently repaired the rotor of the 20 MW salient pole synchronous alternator at Tongaat Hulett’s Xinavane mill in Mozambique. The task, which involved the complete rewind of the rotor, with a cruciform-type winding configuration, was carried out at the company’s Cleveland, Johannesburg facility in just over three months. Craig Megannon, the company’s general manager, […]