GB/T 14481-2008Test procedure for single-phase synchronous machines (English PDF)

Foreword

This standard replaces GB/T 14481-1993 "single-phase synchronous motor test methods", compared to the previous version mainly was amended as follows.

--- Define the scope of this standard.

--- Normative references.

a) All references to new domestic and international standards (IEC ) standard;

b) increase the reference standard.

--- Measuring instrument accuracy class requirements.

a) electricity meter of not less than 0.2 (formerly 3.2.1 requires 0.5);

b) a torque of not less than 0.2 meter (formerly 3.2.1 requires 1.0).

--- Load characteristics and short-circuit characteristics GB/T 1029-2005 coordination.

--- Withstand voltage test according to the requirements of GB 755 amendments.

--- Withstand voltage test tripping current assessment increases when the withstand voltage test in accordance with the requirements of GB 14711-2006.

--- Cancellation measured voltage sinusoidal waveform distortion, according to GB 755 requirements, measure the harmonic voltage factor HVF.

--- Heat test according to the provisions of GB/T 1029-2005 and GB 755 be revised so that coherence between standards.

--- Rewrite efficiency measured winding temperature conversion reference GB/T 1029-2005 and GB/T 1032-2005 revised method, press

"Temperature + 25 °C" or according to a predetermined reference temperature thermal rating calculation to determine the efficiency of the winding temperature.

--- Transient voltage regulation rate increase and recovery measurement time.

--- Increase measurement terminal radio interference level.

Appendix A of this standard is an informative annex.

1 Scope

This standard specifies the test methods for single-phase synchronous motor.

This standard applies to power 200kW and below, voltage 690V and below single-phase synchronous motors (generators and motors), does not apply

No current excitation winding single-phase synchronous motor (permanent magnet motor, reluctance motor, etc.).

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB 755 rotary motor fixed and performance (GB 755-2008, IEC 60034-1.2004, IDT)

GB 4343.1-2003 Electromagnetic compatibility appliances, electric tools and similar apparatus - Part 1. Emission (CISPR 14-1.2000, IDT)

GB 4343.2-1999 Electromagnetic compatibility appliances, electric tools and similar apparatus - Part 2. Immunity product Standard class (CISPR14-2.1997, IDT)

GB 4824-2004 industrial, scientific and medical (ISM) radio-frequency equipment - Electromagnetic disturbance characteristics - Limits and methods of measurement (CISPR 11.2003, IDT)

GB/T 6113.101 ~ 6113.105-2008 radio disturbance and immunity measuring apparatus and methods -

GB 10068 measuring shaft heights 56mm and higher mechanical vibration of the motor, evaluation and limits (GB 10068- 2008, IEC 60034-14.2007, IDT) Rotary motor noise measurement method. GB/T 10069.1-2006 motor rotation method and measurement noise limits - Part 1 (ISO 1680.1999, MOD) Room Windings insulation test method JB/T 9615.1-2000 AC low-voltage motors fitted scattered

JB/T 9615.2-2000 AC low-voltage motors embedded scattered among Windings insulation test limits

IEC 60034-22.1996 Reciprocating internal combustion engine driven alternator 3 main symbols, terms and units Power factor cosphi --- I --- Current, A --- Like speed, r/min P --- power, W