Rotor Testing and Inspections

Recurrent Surge Oscillography (RSO) Test Explained

Recurrent Surge Oscillography (RSO) Test Explained

INTRODUCTION The rotor (field) winding of a large utility generator is subject to severe mechanical, thermal,…

Charles J. Wolfe 6 Min Read
Generator Rotor Pole Drop Test: Procedure & Interpretation

Generator Rotor Pole Drop Test: Procedure & Interpretation

Introduction The rotor (field) winding of a large utility generator consists of multiple poles connected in…

Charles J. Wolfe 6 Min Read
500 Volt Megger & Polarization Index Test on Generator Rotors

500 Volt Megger & Polarization Index Test on Generator Rotors

Introduction The rotor (field) winding of a large utility generator operates at relatively low DC excitation…

Charles J. Wolfe 7 Min Read
AC Impedance Testing for Generator Rotors Explained

AC Impedance Testing for Generator Rotors Explained

Introduction The rotor (field) winding of a large utility generator is a critical component that must…

Charles J. Wolfe 6 Min Read