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This test rig has been designed and locally fabricated. It essentially consists of a three phase induction motor driving an 4 speed automobile gearbox (donated by M/s Hindustan Motors Ltd.) coupled to a dc generator for electrical loading through a resistance bank. This setup is used for our premier study on the use of motor current signature analysis for detection of gear box faults. The rig has an electrical control panel, where hall effect sensors are mounted for measuring the input current drawn by the three phase induction motor under the various loading (fault conditions) and speeds of the gearbox.

	7. MOTOR-GEARBOX-GENERATOR TEST RIG



	This test rig has been designed and locally fabricated. It essentially consists of a three phase induction motor driving an 4 speed automobile gearbox (donated by M/s Hindustan Motors Ltd.) coupled to a dc generator for electrical loading through a resistance bank. This setup is used for our premier study on the use of motor current signature analysis for detection of gear box faults. The rig has an electrical control panel, where hall effect sensors are mounted for measuring the input current drawn by the three phase induction motor under the various loading (fault conditions) and speeds of the gearbox.