A PMMC instrument with FSD of 50 µA and Rm = 1700 N is used in the half wave rectifier voltmeter circuit shown in figure. The silicon diode (D1) must have a minimum (peak) forward current of 100 µA when the measured voltage is 20 % of FSD. The voltmeter is to indicate 50 Vrms at full scale. Calculate the values of R, and Rsh- R, \ISH IF Im Vm RSH D2 PMMC instrument

A PMMC instrument with FSD of 50 µA and Rm = 1700 N is used in the half wave rectifier voltmeter circuit shown in figure. The silicon diode (D1) must have a minimum (peak) forward current of 100 µA when the measured voltage is 20 % of FSD. The voltmeter is to indicate 50 Vrms at full scale. Calculate the values of R, and Rsh- R, \ISH IF Im Vm RSH D2 PMMC instrument

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter59: Motor Startup And Troubleshooting Basics

Section: Chapter Questions

Problem 12SQ: How is a solid-state diode tested? Explain.

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