The use of Excel for calculating and plotting hyperbolic and sinusoidal functions requires that the variables be expressed in radians. The approach taken in this work, namely calculation first using generic time before conversion to real time, lends itself well to using Excel because generic time, being related to frequency, is expressed in radians. Where the original equation is in real time, however, an initial conversion to radians is necessary. In the following, a range of calculations and plots will illustrate the methodology.
I.2 Underdamped Series RLC Circuit
The pu voltage equation for an underdamped series RLC circuit with a precharged capacitor is
and taking ds = 0.2 v becomes
The plotting of this equation is shown in steps in Figure I.1a–d.
Figure I.1 Series RLC circuit: (a) Exponential function calculation, (b) Cosine function calculation, (c) Per unit voltage calculation, (d) Plot per unit voltage versus generic time.
I.3 T100 TRV Calculation for 245 kV Circuit Breaker
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.
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
