International Library of Technology · Scranton, International Textbook Co. · leaf 83
voltmeter V to the terminal t^ of the field coil. If that coil is grounded,the voltmeter will show a deflection about equal to theE. M. F. of the circuit C C^, but if the insulation is intact,it will show little or no deflection. The wire connecting thevoltmeter with the terminal t^ may be… … 96. If the machine tests out clear of grounds, it shouldbe shut down after the proper length of time and thevarious parts of the machine felt over to locate any excessiveheating. If accurate results are wanted, thermometersshould be used, placing the bulb on the various parts (arma-ture, field…
Electrical engineering
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