Open Electrical: About
From Open ElectricalOpen Electrical is a free, independent electrical (power systems) engineering design resource for industry practitioners. It is aimed at bridging the gap between what is taught at engineering school and what is needed to practice effectively in industry.
Industry practitioners are normally busy people and when they need information, it's usually for something related to what they are doing right then and there. However, their requirements will depend on how deep or broad they need the information to be. For example, one engineer may need to know something very specific, like what PETP stands for, while another may require something broader, like how to perform a touch and step potential calculation.
The philosophy of Open Electrical is to provide all of this information using a layered "onion" approach. The top layer (e.g. the guide to electrical cables) is very broad and provides general information about a topic with links to more specific articles. It's good as a starting point on a topic. But as you peel back the layers, the articles become deeper and more specialized.
Contents
1 Introduction I
1.1 Why do the calculation?
1.2 When to do the calculation?
2 Calculation Methodology
2.1 Step 1: Collect list of loads
2.2 Step 2: Collect electrical load parameters 2.3 Step 3: Classify the loads
2.3.1 Voltage Level
2.3.2 Load duty
2.3.3 Load criticality I
2.4 Step 4: Calculate consumed load
2.5 Step 5: Calculate operaÆŸng, peak and design loads
2.5.1 Operating load
2.5.2 Peak load
2.5.3 Design load
3 Worked Example
3.1 Step 1: Collect list of loads
3.2 Step 2: Collect electrical load parameters
3.3 Step 3: Classify the loads
3.4 Step 4: Calculate consumed load
3.5 Step 5: Calculate operaÆŸng, peak and design loads
4 Operating Scenarios
5 Computer Software
6 What Next?
