Learn how to solve step-down autotransformer problems on the Power PE Exam even though the Reference Handbook is missing information on this topic!
Table of Contents:
1:11 - Step up autotransformer (Boost)
2:23 - Turns ratio (N1:N2) for step-up autotransformer
4:31 - Primary (IL) vs secondary (IH) current for step-up autotransformer
5:24 - Step up autotransformer current relationships and KCL
7:01 - Step down autotransformer (Buck)
7:26 - Turns ratio (N1:N2) for step down autotransformer
9:19 - Step down autotransformer current relationships and KCL
11:19 - Common current (IC) for both step up and step down autotransformer
12:30 - Input-output power formulas (SIO)
16:15 - Winding power formulas (Sw)
20:58 - Transformer turns ratio formula
23:16 - Set up autotransformer turns ratio formula
26:03 - Set down autotransformer turns ratio formula
Watch out!
The NCEES® Reference Handbook does not include reference material for the step-down autotransformer.
Instead, it only includes material for the step-up autotransformer.
Are you confident that you'll be able to answer step-down autotransformer questions on the PE exam without formulas or a circuit diagram?
This is a short video taken from the February 2022 Transformers Live Class to show you exactly how to solve step-down autotransformer problems, even though the Reference Handbook does not include any information on it.
Click the links below to learn more about the fastest growing online class for the NCEES® Electrical Power PE Exam located at www.electricalpereview.com
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Негізгі бет Autotransformers: Step up, Step Down, Boost, and Buck for the CBT Power PE Exam 2022
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