August 2015
Beginner to intermediate
1061 pages
31h 28m
English
Content preview from Electric Power Distribution Engineering, 3rd Edition
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Chapter 3
Application of Distribution Transformers
Now that I’m almost up the ladder,I should, no doubt, be feeling gladder,It is quite fine, the view and such,If just it didn’t shake so much.
Richard Armour
3.1 Introduction
In general, distribution transformers are used to reduce primary system voltages (2.4–34.5 kV) to utilization voltages (120–600 V). Table 3.1 gives standard transformer capacity and voltage ratings according to ANSI Standard C57.12.20-1964 for single-phase distribution transformers. Other voltages are also available, for example, 2400 × 7200, which is used on a 2400 V system that is to be changed later to 7200 V.
Table 3.1
Standard Transformer Kilovoltamperes and Voltages
Kilovoltamperes |
High Voltages |
Low Voltages ... |
|---|
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