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GB/T 15548-2023: General specification for three-phase synchronous generators driven by reciprocating internal combustion engine Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 15548: Historical versions
Similar standardsGB/T 15548-2023: General specification for three-phase synchronous generators driven by reciprocating internal combustion engine---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT15548-2023 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 29.160.20 CCS K 21 Replacing GB/T 15548-2008 General Specification for Three-phase Synchronous Generators Driven by Reciprocating Internal Combustion Engine Issued on: NOVEMBER 27, 2023 Implemented on: JUNE 1, 2024 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 5 2 Normative References... 5 3 Terms and Definitions... 6 4 Basic Parameters and Dimensions... 7 5 General Requirements... 8 6 Technical Requirements... 9 7 Test Methods... 18 8 Inspection Rules... 20 9 Marking, Packaging and Warranty Period... 22 General Specification for Three-phase Synchronous Generators Driven by Reciprocating Internal Combustion Engine1 ScopeThis document specifies the basic parameters and dimensions, general requirements, technical requirements, test methods, inspection rules, as well as marking, packaging and warranty period of three-phase synchronous generators driven by reciprocating internal combustion engine. This document is applicable to the manufacture of three-phase synchronous generators driven by reciprocating internal combustion engine.2 Normative ReferencesThe contents of the following documents constitute indispensable clauses of this document through the normative references in the text. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 191-2008 Packaging - Pictorial Marking for Handling of Goods GB/T 755-2019 Rotating Electrical Machines - Rating and Performance GB/T 997-2022 Classification of Types of Construction, Mounting Arrangements and Terminal Box Position (IM Code) for Rotating Electrical Machines GB/T 1029-2021 Test Procedures for Three-phase Synchronous Machines GB/T 1096-2003 Square and Rectangular Keys GB/T 1958-2017 Geometrical Product Specifications (GPS) - Geometrical Tolerance - Verification GB/T 1971-2021 Rotating Electrical Machines - Terminal Markings and Direction of Rotation GB/T 1993-1993 Cooling Methods for Rotating Electrical Machines GB/T 2820.6-2009 Reciprocating Internal Combustion Engine Driven Alternating Current Generating Sets - Part 6.Test Methods GB/T 4772.1-1999 Dimensions and Output Series for Rotating Electrical Machines GB/T 4772.2-1999 Dimensions and Output Series for Rotating Electrical Machines - Part 2. Frame Numbers 355 to 1,000 and Flange Numbers 1,180 to 2,360 GB/T 4942-2021 Degrees of Protection Provided by the Integral Design of Rotating Electrical Machines (IP code) - Classification GB/T 10068-2020 Mechanical Vibration of Certain Machines with Shaft Heights 56 mm and Higher - Measurement, Evaluation and Limits of Vibration Severity GB/T 10069.1-2006 Measurement of the Airborne Noise Emitted by Rotating Electrical Machines and the Noise Limits - Part 1.Method for the Measurement of Airborne Noise Emitted by Rotating Electrical Machines GB/T 10069.3-2008 Measurement of the Airborne Noise Emitted by Rotating Electrical Machines and the Noise Limits - Part 3.Noise Limits GB/T 12665-2017 Requirements of Damp-heat Testing of Electrical Machine for Service in General Environmental Condition GB/T 12975-2021 General Specification for Synchronous Generator in Ships GB/T 14048.1-2023 Low-voltage Swithgear and Controlgear - Part 1.General Rules GB/T 14711-2013 General Requirements for Safety of Small and Medium Size Rotating Electrical Machines GB/T 22714-2008 Test Specifications of Interturn Insulation of Form-wound Winding for AC Low-voltage Electrical Machines GB/T 22715-2016 Impulse Voltage Withstand Levels of Form-wound Stator Coils for Rotating a.c. Machines GB/T 22717-2008 Test Specifications of Interturn Insulation of Field Pole Coil and Field Winding for Electrical Machines GB/T 22719.1-2008 Interturn Insulation of Random-wound Winding for AC Low-voltage Electrical Machines - Part 1.Test Methods GB/T 22719.2-2008 Interturn Insulation of Random-wound Winding for AC Low-voltage Electrical Machines - Part 2.Test Limits3 Terms and DefinitionsThis document does not have terms or definitions that need to be defined.4 Basic Parameters and Dimensions4.1 Basic Parameters 4.1.1 The enclosure protection degree of the three-phase synchronous generators driven by reciprocating internal combustion engine (hereinafter referred to as the generators) shall be agreed upon by the user and the manufacturer in accordance with GB/T 4942-2021. 4.1.2 The cooling method of the generators shall be agreed upon by the user and the manufacturer in accordance with GB/T 1993-1993. 4.1.3 The structure and installation type of the generators shall be agreed upon by the user and the manufacturer in accordance with GB/T 997-2022. 4.1.4 The generator quota is a continuous quota based on the continuous working system (S1). 4.1.5 The rated frequency of the generators is 50 Hz or 60 Hz, the rated voltage of the generators is 400 V, 450 V, 600 V, 690 V, 3,150 V, 3,300 V, 6,300 V, 6,600 V, 10,500 V, 11, 000V or 13,800 V, the armature winding is a star connection with or without a lead wire at the neutral point, and can also be determined in accordance with the user agreement. 4.1.6 The rated power factor of the generators is 0.8 (lagging). 4.1.7 The rated frequency and rated speed of the generators are as specified in Table 1. 4.1.8 The recommended rated power of the generators shall be in accordance with the provisions of Table 2. 4.2 Dimensions 4.2.1 The installation dimensions and tolerances of the generators shall comply with the provisions of GB/T 4772.1-1999 or GB/T 4772.2-1999. 4.2.2 The shaft extension keys and tolerances of the generators shall comply with the provisions of GB/T 1096-2003. 4.2.3 The corresponding relations among the generator power, speed and center height shall be specified by the product standard.5 General Requirements5.1 The generators shall comply with the requirements of this document and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 5.2 Under the following altitudes, ambient air temperatures and ambient air relative humidity conditions, the generators shall be able to maintain the rated operation. a) The altitude does not exceed 1,000 m. b) The maximum ambient air temperature varies with the seasons, but does not exceed 40 C. c) The minimum ambient air temperature is 15 C, except for the following motors, the ambient air temperature shall not be lower than 0 C. 1) Rated output greater than 3,300 kW (or 4,125 kVA), speed greater than or equal to 1,000 r/min; 2) With sliding bearings; 3) Use water as primary or secondary cooling medium. d) The average maximum relative humidity of the wettest month at the operating location is 90%, and the average minimum temperature of the month is not higher than 25 C. e) When the generators are used for ships, the environmental requirements shall comply with the provisions of GB/T 12975-2021. If the operating conditions do not comply with the above-mentioned provisions, then, the deviation shall be corrected in accordance with the provisions of GB/T 755-2019. 5.3 The generators shall be able to output rated power at rated speed and rated power factor when the voltage changes between 95% ~ 105% of the rated value. When deviating from the rated operation, the performance is allowed to be different from that specified in the Standard, but when the above-mentioned voltage change reaches the limit and the motor is in continuous operation, the maximum value that is allowed to be exceeded by the temperature rise limit is 10 K. 5.4 The generator and its excitation system shall be able to perform reliable excitation. 5.5 It is advisable to consider many factors that may affect the torsional vibration of the shaft system after the generators and the internal combustion engine are grouped. When necessary, the generator manufacturer shall provide the internal combustion engine manufacturer with the rotor size and rotational inertia and other parameters of the generators, which will be calculated and determined by the internal combustion engine manufacturer. 5.6 Unless measures are taken to ensure that there is no danger, the 3,150 V or higher leading- out terminals and low-voltage leading-out terminals in the generators cannot be in the same leading-out box.6 Technical Requirements6.1 The mechanical inspection items of the generators include. a) Bearing inspection. when the generators are running, the bearings shall be stable and light, and without stagnation; b) Surface quality inspection. the paint on the surface of the generators shall be dry and 6.31 The electromagnetic compatibility of the generators shall comply with the provisions of GB/T 755-2019.When the generators are used for ships, the electromagnetic compatibility shall comply with the provisions of GB/T 12975-2021.7 Test Methods7.1 The appearance, assembly quality, external surface paint and various markings of the generators shall be inspected by visual inspection; the rotating shaft and bearing operation inspection shall be carried out by manual rotation. The inspection of motor dimensions shall be carried out in accordance with the provisions of GB/T 4772.1-1999, GB/T 4772.2-1999 and GB/T 1958-2017. 7.2 The determination of insulation resistance between the generator winding and the frame and between the windings, phase sequence inspection, voltage setting range determination, steady- state voltage regulation rate determination, short-time voltage rise test, voltage withstand test, overspeed test, voltage deviation determination when the generators are working under asymmetric load, shaft voltage determination, efficiency determination, thermal test, accidental overcurrent test, overload test, waveform distortion rate determination, harmonic voltage factor determination, and sudden short-circuit mechanical strength shall be carried out in accordance with the provisions of GB/T 1029-2021. 7.3 The interturn insulation impulse voltage withstand test of the generator windings shall be carried out in accordance with the provisions of GB/T 22719.1-2008, GB/T 22714-2008, GB/T 22715-2016, and GB/T 22717-2008. 7.4 The transient voltage regulation rate and recovery time determination, short-circuit current holding capacity, and short-circuit current test shall be carried out in accordance with the provisions of GB/T 12975-2021. 7.5 The parallel operation test of the generators shall be carried out when the product design is finalized or the design parameters and excitation system are changed. It can also be tested after the generators are matched with the internal combustion engine to form a unit. The test method shall comply with the provisions of GB/T 2820.6-2009, or the test methods specified in various product standards. 7.6 The impact voltage withstand test of the generator windings, terminal blocks and other insulating parts to the enclosure (ground) shall be carried out in accordance with the provisions of GB/T 14711-2013. 7.7 The determination of generator vibration shall be carried out in accordance with the provisions of GB/T 10068-2020.When the control box is exactly at the specified measurement point position, the measurement point configuration shall be specified by the product standards of the generators. 7.8 The determination of generator noise shall be carried out in accordance with the provisions of GB/T 10069.1-2006. 7.9 The enclosure protection degree test shall be carried out in accordance with the provisions of GB/T 4942-2021. 7.10 The 40 C alternating damp heat test shall be carried out in accordance with the provisions of GB/T 12665-2017. 7.11 The safety performance of the generators shall comply with the provisions of GB/T 14711- 2013. 7.12 The measurement of the electrical clearance and creepage distance between the generator leading-out terminals shall be carried out in accordance with the provisions of Appendix G in GB/T 14048.1-2023. 7.13 When the generators are used for ships, the electromagnetic compatibility performance test shall be carried out in accordance with the provisions of GB/T 12975-2021. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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