Skip to Main Content
Newnes Circuit Calculations Pocket Book
book

Newnes Circuit Calculations Pocket Book

by Thomas J. Davies
April 2016
Intermediate to advanced content levelIntermediate to advanced
384 pages
12h 56m
English
Newnes
Content preview from Newnes Circuit Calculations Pocket Book
Transformers 239
calculate: (i) the maximum permissible primary and secondary
currents, (ii) the number of primary turns.
400 x 10
3
VA
(i) Maximum primary current = = 50 A
Y J
8000V
400 x 10
3
VA
Maximum secondary current =
7
200 V
= 2000 A
100 x 8000
= 4000 turns
200
400 kVa is the rating of the transformer. This means that the
product of the voltage and current must not exceed 400 x 10
3
.
10 PRINT "PROG 207"
20 PRINT "SOLUTION TO EXAMPLE 16"
30 INPUT "ENTER TRANSFORMER RATING" ; KVA
40 INPUT "ENTER PRIMARY VOLTAGE" ; VP
50 INPUT "ENTER SECONDARY VOLTAGE" ; VS
60 INPUT "ENTER SECONDARY TURNS" ; NS
70 LET IP=KVA/VP
80 PRINT "PRIMARY CURRENT = ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Power Supplies for LED Driving, 2nd Edition

Power Supplies for LED Driving, 2nd Edition

Steve Winder

Publisher Resources

ISBN: 9781483101132