GB/T 21663-2019Specific requirements for small capacity cylindrical rotor synchronous machines (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 21663-2008 "Small-capacity energy-saving and environmentally-friendly hidden-pole synchronous generator technical requirements", and GB/T 21663- Compared to 2008, the main technical changes are as follows:

--- Revised the efficiency rating of some generators (see Chapter 4, Chapter 4 of the 2008 edition);

--- Increased corona test requirements (see Chapter 5);

--- Increased rotor overcurrent requirements (see Chapter 5);

--- Increased grid-connected, asynchronous operation requirements (see Chapter 5);

--- Increased maintenance measures during long-term downtime (see Chapter 5);

--- Increased the basic requirements information required by the purchaser, prime mover and generator supplier when ordering (see Appendix E).

1 Scope

This standard specifies the general requirements and technical requirements for small-capacity hidden-pole synchronous generators.

This standard is applicable to 50Hz small-capacity three-phase hidden-pole synchronous generators with a capacity of 10MVA and below. It is a supplement to GB/T 755. Charge. For motors with a rated frequency of 60 Hz, refer to the implementation.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 191 packaging storage and transportation icon

GB/T 755 rotary motor rating and performance

GB/T 1029 three-phase synchronous motor test method

GB/T 6075.1 Mechanical vibrations - Evaluation of vibrations of machines - Part 1. General

GB/T 7064 hidden pole synchronous generator technical requirements

GB/T 10069.1 Determination of noise and noise - Part 1

GB/T 10585 Basic technical requirements for excitation systems for small and medium-sized synchronous motors

GB/T 11348.1 Measurement and evaluation of radial vibrations of rotating shafts - Part 1: General

GB/T 20160 Rotating Motor Insulation Resistance Test

GB/T 20835 Generator Stator Core Magnetization Test Guide

GB 50150 Electrical installation engineering electrical equipment handover test standard

JB/T 6204 high voltage AC motor stator coil and winding insulation withstand voltage test specification

JB/T 7784 Turbine Synchronous Generator AC Exciter Technical Conditions

JB/T 8446 hidden pole synchronous generator rotor turn-to-turn short circuit determination method

JB/T 8991 Generator Tin Weld Head Detection Method

3 Terms and definitions

The following terms and definitions defined in GB/T 755 apply to this document.