Technical Guide: Basic Calculations for LV and HV Electrical Networks

This guide is intended to provide a general overview of the main electro-technical calculations carried out in engineering studies on electrical systems at all voltage levels.It deals more with the operation of devices and installations in electrical systems.

This document will help owners, designers and operators understand the importance of these calculations in ensuring correct use of the electrical network and their impact on the total cost of ownership.

Contents

1 Introduction

2 Life of an electrical network

2.1 Life cycle of an electrical network

2.2.Electrical phenomena in networks

2.3 Types of networks and their operation

2.4 Necessary calculations

2.5 Summary table

3 Study prerequisites

3.1 Method

3.2 Role of the expert

4 Electrical-network calculations

4.1 Dependability

4.2 Steady-state conditions

4.3 Short-circuit

4.4 Protection

4.5 Stability

4.6 Harmonics

4.7 Overvoltages

4.8 Electromagnetic compatibility

4.9 Measurements for audits

5 Summary - Main risks for users - Answers provided by studies

6 Conclusion

Appendix 1. History

Appendix 2. Software

Appendix 3. Necessary data

Bibliography 

Click here on the link to start download