GB/T 3859.3-2013 (English Version) PDF

Standard No.: GB/T 3859.3-2013
Language: Chinese, Available in English version
Release Date: 2013
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 3859.3-2013
Replace: GB/T 3859.3-1993

Scope: This part of GB/T 3859 specifies the characteristics of converter transformers different from general power transformers. It should be noted that when the rectifier transformer is running, a non-sinusoidal current usually flows. In the single-shot connection, the current of each valve side winding contains a DC component, and special attention should be paid to it during design and test. In some cases, external short circuits and component failures can create abnormal stresses that necessitate special designs. Some types of transformers operate normally with voltage waveforms that are non-sinusoidal. Its core loss is determined with a sinusoidal voltage equal to the arithmetic mean value of the voltage half cycle and the fundamental frequency during operation. This part applies to the converter transformers and reactors used in conjunction with the power conversion equipment specified in GB/T 3859.1. In other aspects, if the national standard "Power Transformers" does not contradict this Part, the rules specified in it also apply to converter transformers.

GB/T 3859.3-2013 Referenced Document

GB/T 3859.1-2013 Semiconductor converters.General requirements and line commutated converters.Part 1-1:Specification of basic requirements
GB/T 3859.2-2013 Semiconductor converters.General requirements and line commutated converters.Part 1-2:Application guide

2013 GB/T 3859.3-2013 Semiconductor converters.General requirements and line commutated converters.Part 1-3:Transformers and reactors
1993 GB/T 3859.3-1993 Semiconductor convertors.Transformers and reactors