IEC 60076-10-1:2016 电力变压器 - 第10-1部分:声级测定 - 应用指南

标准编号：IEC 60076-10-1:2016

中文名称：电力变压器 - 第10-1部分:声级测定 - 应用指南

英文名称：Power transformers - Part 10-1: Determination of sound levels - Application guide

发布日期：2016-03-24

标准范围

IEC 60076-10-1:20 16提供支持信息，帮助制造商和购买者应用IEC 60076-10中描述的测量技术。除了介绍一些基本的声学知识外，还描述了变压器和电抗器声音的来源和特点。给出了测量的实际指导，并讨论了影响方法精度的因素。本应用指南还说明了为什么在工厂测量的值可能与在使用中测量的值不同。本应用指南适用于变压器和电抗器及其相关的冷却辅助设备。与上一版相比，此版本包括以下重大技术变更:a)提供关于声场的扩展信息；b)绕组中电流谐波的影响；c)提供了关于测量方法声压和声强的最新信息；d)给出有关测量程序的支持信息，并逐点给出；e)澄清所提供的A-权重；f)给定频带的新信息；g)提供的关于测量距离的背景信息；h)引入了关于绕组中谐波电流引起的声音积累的新附件。本出版物应与IEC 60076-10:20 16一起阅读。

IEC 60076-10-1:2016 provides supporting information to help both manufacturers and purchasers to apply the measurement techniques described in IEC 60076-10. Besides the introduction of some basic acoustics, the sources and characteristics of transformer and reactor sound are described. Practical guidance on making measurements is given, and factors influencing the accuracy of the methods are discussed. This application guide also indicates why values measured in the factory may differ from those measured in service. This application guide is applicable to transformers and reactors together with their associated cooling auxiliaries. This edition includes the following significant technical changes with respect to the previous edition:
a) extended information on sound fields provided;
b) effect of current harmonics in windings enfolded;
c) updated information on measuring methods sound pressure and sound intensity given;
d) supporting information on measuring procedures walk-around and point-by-point given;
e) clarification of A-weighting provided;
f) new information on frequency bands given;
g) background information on measurement distance provided;
h) new annex on sound-built up due to harmonic currents in windings introduced.

This publication is to be read in conjunction with IEC 60076-10:2016.

标准预览图