1 Scope
This standard GB/T 25389 specifies the testing methods of low-speed permanent magnet synchronous generator for grid connected wind turbine.
This standard applies for testing for low-speed permanent magnet synchronous generator (hereinafter referred to as generator), other types of generators may reference this standard.
2 Normative References
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Test Requirements
4.1 Safety Measures
4.2 Testing Apparatus and Instruments
4.3 Test Preparation
5 Test items
5.1 Determination of Insulation Resistance
5.2 Determination of DC Resistance of Windings in Actual Cold State
5.3 Interturn Impulse Voltage withstand test
5.4 Voltage Withstand Test
5.5 Vibration Measurement
5.6 Noise Measurement
5.7 Determination of No-Load Voltage and Voltage Tolerance of Generator
5.8 Determination of No-Load Characteristic Curve of Generator in Cold State and Hot State (generator method)
5.9 Generator No-Load Characteristic Test (motor method)
5.10 Steady State Short Circuit Test
5.11 Excess Current Test
5.12 Excess Load Test
5.13 Overspeed Test
5.14 Heat rise test
5.15 Direct Determination Method of Efficiency
5.16 Indirect Determination Method of Efficiency
5.17 Determination of Generator Voltage Regulation rate δstu (only for pure resistive)
5.18 Generator Power Characteristic Test
5.19 Determination of Waveform Distortion Rate
5.20 Determination of Starting Resistance Moment
5.21 Sudden Short-circuit Test
5.22 Shaft Voltage Determination
5.23 Housing IP Test
5.24 Humidity and Heat Test
5.25 Salt Mist Test
5.26 Mould Test
