This part specifies the main types, basic parameters and dimensions, technical requirements, test methods, inspection rules, inspection and test items as well as marking, packaging and transport requirements of asynchronous generator of grid-connected wind turbine generator systems (with speed-increasing gearbox).
This part is applicable to grid-connected single-speed or double-speed asynchronous generator (with speed-increasing gearbox; hereinafter referred to as generator); for generators of other types, it may apply for reference.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 191 Packaging - Pictorial Marking for Handling of Goods (eqv ISO 780: 1997)
GB 755 Rotating Electrical Machines - Rating and Performance (idt IEC 60034-1: 1996)
GB/T 997 Symbols for Types of Construction and Mounting Arrangements of Rotating Electrical Machinery (neq IEC 60034-7: 1972)
GB/T 1993 Cooling Methods for Rotating Electrical Machines
GB/T 4942.1 Classification of Degrees of Protection Provided by Enclosures of Rotating Electrical Machines (IP Code) (idt IEC 60034 5: 1991)
GB 10068-2000 Mechanical Vibration of Certain Machines with Shaft Heights 56mm and Higher - Measurement, Evaluation and limits of Vibration (idt IEC 60034-14: 1996)
GB/T 10069.1 Measurement of Airborne Noise Emitted by Rotating Electrical Machinery and the Noise Limits - Engineering Method for the Measurement of Airborne Noise (neq ISO 1680-1: 1986)
GB/T 10069.2 Measurement of Airborne Noise Emitted by Rotating Electrical Machinery and the Noise Limits - Survey Method for the Measurement of Airborne Noise (neq ISO 1680-2: 1986)
GB 10069.3 Measurement of Airborne Noise Emitted by Rotating Electrical Machinery and the Noise Limits - Noise Limits (neq IEC 60034-9)
GB/T 12665-1990 Requirements of Damp-Heat Testing of Electrical Machine for Service in General Environmental Condition
GB/T 19071.2 Asynchronous Generator for Wind Turbine Generator Systems - Part 2: Test Method
JB/T 9615.1 Test Methods of the Interturn Insulation on Random Wound Winding for AC Low-voltage Machines
JB/T 9615.2 Test Limits of the Interturn Insulation on Random Wound Winding for AC Low-voltage Machines
JB/T 5811 Test Method and Limits of Form-wound Winding for Alternating Current Low-voltage Electrical Machines
3 Type, Basic Parameter and Dimension
3.1 Generator shell protection grade shall not be inferior to IP44 specified in GB/T 4942.1.
3.2 There shall be reliable cooling mode for generators; if the ventilation cooling mode is adopted, it shall be ensured that the introduced air do not cause harm to the generator; if water cooling mode is adopted, there shall be no water seepage or leakage.
3.3 Structure and mounting mode of generator shall meet the requirements of IMB3 specified in GB/T 997.
3.4 Rating of the generators is continuous duty system (S1)-based continuous rating.
3.5 Single-speed generators are generally manufactured according to the following rated power (kW): 150, 200, 250, 300, 400, 500, 600, 660, 750, 1,000, 1,320 or 1,500.
3.6 As for the single-speed generator, the rated frequency is 50Hz, the synchronous speed is 1,500 r/min, the rated voltage (V) is 400, 690, 1,000 or 1,500 (the user may negotiate with the manufacturer if having special requirements).
3.7 Double-speed generators shall be manufactured according to the following rated power (kW): 600/1251), 660/180 or 750/220 (the user may negotiate with the manufacturer if having special requirements).
GB/T 19071.1-2003 The following standards are cited：
