Earthing Studies
Earthing is one of the most complex and poorly understood aspects of power system engineering, with many engineers regarding it as a ‘black art’ or ‘alchemy’. In truth it is not an easy subjective, and one that is not overly intuitive, but there are some key ideas that are worth taking the time to understand. […]
Power System Studies – An Overview
Power System Studies Power system studies, or power system analysis is a critical part in the design process of any HV power system. If the system has not been designed correctly, formal computer analysis will identify any problems before construction starts, allowing redesign to be affected at minimal cost and any potential safety risks to […]
Power System Analysis Software
Power System Analysis Software – Overview A question that we are asked fairly regularly is ‘What power system analysis software package should I buy / use?’ This seemingly innocuous question, actually covers a huge topic that is worthy of a whole technical paper on its own. The important point before answering this question is to […]
Power System Design
Power System Design Power system design from first principles can be a daunting process. This blog has been prepared by Aurora to provide a simple, high level technical resource to describe, in simple terms, the process, rationale and criteria for designing large electrical power systems. This guide is based on practical experience and industry standard […]
Reformatting
Just a short post to advise that over the next few weeks and months we will be updating and reformatting a lot of our blog section. This will involve adding more technical content and diagrams to the existing posts, and reordering them slightly, as well as adding several more detailed technical topics. This is all […]
Energy Storage Summit – February 2018
One of our engineers recently attended the Energy Storage Summit, held in Victoria Plaza Hotel, London and thought it would be interesting to give people an overview of the summit. The first, and most important point, was that the summit was very much about the wider future of energy storage projects, market trading, legal issues, […]
Earthing Studies and ENA 41-24 v. BS EN 50522
Carrying out an earthing study is usually of key importance to any new installation project and is usually a mandatory requirement. It is important to recognise that while the phrase ‘earthing study’ may sound very specific it actually covers a very wide range of activities and issues, so it is essential to agree with any […]
IEC 60909 / G74 Study – Short Circuit Calculation
The Short Circuit Study IEC 60909 / ENA G74 An IEC 60909 / G74 short circuit study refers to the process of determining the fault levels (commonly called short circuit levels) in an electrical power system. The IEC 60909 standard for short circuit calculations in three phase AC systems, is a well known and commonly […]
Arc Flash Study – What Are They And Why Do I Need To Do One ?
An interesting development over the last decade or so, is the rising importance of arc flash studies. There is a variety of reasons for this, but it is mainly due to the recognition that arcing faults present a particular hazard to operational staff, that is frequently overlooked – potentially putting personnel in danger. Arcing faults […]