Metoda pomiaru napięć indukowanych w uzwojeniu twornika obciążonej maszyny prądu stałego

In the article a new measurment method of generated voltage in armature winding is presented. The method makes possibility to measure a generated voltage in d.c. loaded machines. The method is very convenient and needs only the simple testing in the motoring and generatoring mode. The generated voltage is the arithmetic mean of measured armature voltages on motor and generator operation by given armature and field current. An additional advantage by testing is any need to know an armature circuit resistances, The verification of the new method was made on d.c. shunt motor (P=1,5 kW, U=220 V, n=1450 rpm).