Test Instruments for Testing in Place The following test instruments can be used to troubleshoot the ninelead three-phase motor in place: clamp-on volt/ ammeter, ohmmeter, megohmmeter, tachometer, induction-based test instruments, and infrared gun. The digital clamp-on type of volt/ammeter is capable of capturing instantaneous lockout amperes. The lockout feature records the locked rotor ampere reading. […]
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