IEC 60076-21:2018-电力变压器 - 第21部分:步进电压调节器的标准要求术语和测试代码-国家数字标准馆

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Power transformers - Part 21: Standard requirements, terminology, and test code for step-voltage regulators 电力变压器 - 第21部分:步进电压调节器的标准要求术语和测试代码

发布日期： 2018-12-07

IEC 60076-21:20 18描述了液浸式、单相和三相、50 Hz和60 Hz、自风冷和强制风冷、配电、架空和变电站、1 000 kVA（单相装置）或3 000 kVA（三相装置）及更小、34 500伏及以下（最低2 400 V）及其相关控制的电气、机械和测试要求。给出了与IEC或IEEE上下文相关的要求、参考文献和定义，并在第4条中描述了它们的使用。本出版物作为IEC/IEEE双标识标准发布。第二版取消并取代了2011年发布的IEC 60076-21和IEEE标准C57.15-2009。本版本包括以下与IEC 60076-21:20 1/IEEE Std C57.15-2009相关的重大技术变更:
a)更新的IEC和IEEE标准和参考书目列表及其相关文本；b)更新了首选评级表，以纳入？最大系统电压（Um）、标称系统电压和额定电压（Ur）；
c)包括可选风扇冷却额定值、外部介电间隙和声压级的表格；
d)配电和变电站电压调节器短路要求的修订；
e)在控制外壳和设备之间包括通用接口；
f)包括？分接开关常规和型式测试；
g)包括可听声压发射测试程序；
h)包括储罐外壳完整性类型测试程序；
i)控制环境IEC参考测试标准的更新。
关键词:阶跃电压调节器

IEC 60076-21:2018 describes electrical, mechanical and test requirements of liquid-immersed, single- and three-phase, 50 Hz and 60 Hz, self and forced-air cooled, distribution, overhead and substation, step-voltage regulators, 1 000 kVA (single-phase units) or 3 000 kVA (three-phase units) and smaller, 34 500 volts and below (2 400 V minimum) and their associated controls. Requirements, references and definitions relevant to either IEC or IEEE contexts are given and their use is described in Clause 4. This publication is published as an IEC/IEEE Dual Logo standard. This second edition cancels and replaces IEC 60076-21, published in 2011, and IEEE Std C57.15-2009. This edition includes the following significant technical changes with respect to IEC 60076-21:2011/IEEE Std C57.15-2009:

a) updated list of normative and bibliography IEC and IEEE references and their associated text;

b) updated tables of preferred ratings for inclusion of？ maximum system voltage (Um), nominal system voltage and rated voltage (Ur);

c) inclusion of tables for optional fan-cooled ratings, external dielectric clearances and sound pressure levels;

d) revision of short-circuit requirements for distribution and substation voltage regulators;

e) inclusion of an universal interface between control enclosure and apparatus;

f) inclusion of？ tap-changer routine and type tests;

g) inclusion of audible sound pressure emissions test procedures;

h) inclusion of tank enclosure integrity type test procedures;

i) update of control environmental IEC reference test standard.

Keywords: step-voltage regulators