IEC 60145:1963 pdf download 无功电能表

IEC 60145:1963 Var-hour (reactive energy) meters,无功电能表.

1.SCOPE
The present recommendations apply only to newly manufactured induction type var-hour meters
for the measurement of reactive energy of frequency between 40 and 60 Hz (c/s)，of an accuracy
class of 3.0 for ordinary usage and to their type tests.
They do not apply to special types of var-hour meters except multi-rate meters.
They do not apply to instrument transformers,even when used in conjunction with the meters
covered by these recommendations.
2. UNITS
The units employed in these recommendations are those adopted by the International Electrotechnical Commission.
3. DEFINITIONS
Some of the following terms have been taken from those given in the International Electrotechnical
Vocabulary,Group 20(Publication 50(20)(1958)。In such cases the appropriate I.E.V.reference is given.Some other terms or their definitions have been added especially for these recommendations.

1.范围
本建议仅适用于新制造的感应式无功时计
用于测量频率在40和60Hz（c/s）之间的无功能量，精度为3.0级，用于普通用途及其类型测试。
除多费率表外，它们不适用于特殊类型的无功小时表。
它们不适用于仪表变压器，即使与仪表一起使用这些建议涵盖的范围。
2.单位
这些建议中采用的单位是国际电工委员会采用的单位。
3.定义
以下一些术语取自《国际电工技术》
词汇，第20组（出版物50（20）（1958））在这种情况下，会提供适当的I.E.V.参考。特别为这些建议增加了一些其他术语或其定义。