Principle of Rotor Testing
The Rotor tester uses the principle of electrical and magnetic effects caused by the circulation of induced currents into the bars of a rotor, which is made to turn at a....
The Rotor tester uses the principle of electrical and magnetic effects caused by the circulation of induced currents into the bars of a rotor, which is made to turn at a constant speed, with in a magnetic field produced by a permanent magnet. The induced magnetic field produced by permanent magnet, acts on one slot at a time. The direction of magnetic field is such that the turns of a moving rotor cut the lines of force normally. The induced currents, which are proportional to the field intensity (distance of magnet from the rotor, on the speed of rotation constant) & on the rotor characteristics, produce magnetic fields, the symmetry of which enable a clear observation of the turns in the short-circuited condition. A fixed probe subjected to the magnetic fields produced by the rotor under test, provides the signals, which after being amplified, are applied to the monitor. The synchronized sinusoidal wave pattern from the rotor bars is displayed on the monitor screen. The waveform identifies typically occurring faults in the rotor bars & there is a distant correlation between the result of the inductive test of the rotor bars & the starting torque of a motor.
Company Details
Jabbals is the leading manufacturer of Surge Comparison Tester in India for over 30 years. The cost-effective Surge Comparison tester developed by Jabbals has become a benchmark for testing of motors in India. The Surge tester has immensely improved the quality of motors and has become an important part and parcel of production lines across the country. All the equipments are designed and developed in-house and go through rigorous quality testing procedures. Over the years we have also developed new motor testing products in a simple and cost-effective manner. Jabbals is now quickly finding acceptance in the International market such as USA, Australia, Malaysia, Thailand, Europe, UK and many more countries. The feedback has been very positive and the appreciation from the current clients has resulted in many repeat orders.
Nature of Business Manufacturer / Exporter / Supplier / Retailer
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