Sizing a Sync Motor Field Discharge Resistor

[SictEng]

Does anyone know of a good resource for sizing a field discharge resistor for a 1000hp, 2.2kV synchronous motor? It's 100+ years old so manufacturers data is non-existant. I've found some references of 3x - 6x the field resistance, but I have nothing to back this up. Any suggestions?

 

[electricpete]

ANSVIEEE C37.18-1979 - IEEE Standard Enclosed Field Discharge Circuit Breakers for Rotating Electric Machinery (there is probably a newer revision)
Section 9.3 Selection of Field Discharge Resistor


=====================================
(2B)+(2B)' ?

 

[SictEng]

Thanks! Exactly what I was looking for.