Contents 1 Scope 2 Normative References 3 Test Preparation 4 General Test Items 4.1 Determination of Insulation Resistance 4.2 Determination of DC Resistance of the Winding at Actual Cold State 4.3 Determination of Shaft Voltage 4.4 Determination ofNo-load Characteristics 4.5 Detennination of Steadystate Shortcircuit Characteristics 4.6 Test ofExciter 4.7 Overspeed Test 4.8 lntelturn Short-circuit Test ofNon-salient Pole Generator Rotor 4.9 Determination ofVibration 4.10 Inspection on Sealing State and Determination of Hydrogen Leakage 4.11 Inteltum Impulse Withstand Voltage Test 4.12 Short Time Voltage Rising Test 4.13 Power-frequency Withstand Voltage Test 4.14 DC Leakage Current Test and DC Withstand Voltage Test of the Insulation of Armature Winding 4.l5 Determination ofVo1tage Waveform Sinusoidal Distortion Factof 4.16 Noise Determination 4.17 Determination ofTelephone Harmonic Form Factor (THF) 5 Efficiency Determination 5.1 Direct Determination Method of Efficiency 5.2 lndirect Determination Method of Efficiency 5.3 Calorimetric Method 5.4 Determination ofLosses Corresponding to the Rated Load 5.5 Retardation Test 5.6 Calculation ofEfficiency under other Loads |