Description: Ratio tester model TRM-11 is a new, fully automatic tester that measures transformation ratio of single phase and three phase transformers using modern electronic techniques. TRM-11 is a microcontroller-operated user- friendly, accurate, reliable, small, lightweight and reliable tester. TRM-11 incorporates a large LCD screen for display of menu and results. The results can be stored and printed on built-in printer after the test is over. TRM-11 incorporates breakthrough technology and design that gives accurate and reliable results, again and again. This is a new generation, fully automatic ratio tester designed for measuring ratio and ratio error of single and three phase transformers. The entire test is done automatically and quickly. The test parameters are entered and the TRM-11 takes over and carries out the tasks of powering up the voltage, balancing the bridge, taking the readings, and displaying the results on the LCD screen. Prints of test results are through its built-in printer. A key feature of the TRM-11 is its automatic measure transformer connection which takes over during wrong phase sequence and incorrect connections. LV and HV windings are automatically isolated once the measurement is over. True portability is achieved by the lightweight (only 10 kg), single unit design housing the unit. The TRM-11 is encased in an aluminium alloy cabinet.
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