EEP - Electrical Engineering Portal
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Analysis and detection of potential security threats to a digital substation
The rapid pace of change in the electric power grid creates a challenging environment for asset owners and operators of an electricity infrastructure to monitor the activities of industry and standards organizations, develop an understanding of the security impacts of… Read more
MV Feeder Earth-fault Protection
This chapter contains a description of the earth-fault protection of MV feeders. A feeder may consist of: An overhead line with bare conductors, An overhead line with covered conductors, An aerial cable, An underground cable or A combination of such… Read more
The essence of understanding and analyzing distribution power systems
The distribution system shown below illustrates many of the features of a distribution system making it unique. The voltage level of a distribution system can be anywhere from about 5 kV to as high as 35 kV with the most… Read more
AC grid vs DC grid: HV AC transformers vs power electronics and DC/DC converters
In the early years of electrical power distribution, Direct current (DC) was the standard current. However, due to flaws in Edisonβs DC system, AC became the current standard due to its ability to step up low voltage into high voltage… Read more
Trip and control circuit schemes of signaling between relays and circuit breakers
Modern microprocessor relay has a power supply that transforms the station voltage into a suitable processor and controls voltages for the relay’s internal electronics. The power supplies generally draw only a few volt-amperes of load from the supply. Therefore, they… Read more
100 PLC Application Exercises For Electrical Engineers
PLC Application Exercises includes most common applications in automation control, such as parking lot entry/exit control, material mixing, stock monitoring, level monitoring, traffic lights control, and conveyer belt control. This manual explains methods for applying basic instructions as well as… Read more
Audit report for 40 years old 3.3kV and 11kV switchboards (incl. condition photos)
This audit report summarizes the existing condition of the 35-40 years old Siemens’s 3.3 and 11kV switchboards and system at the time when the audit was performed. Charts, diagrams and graphics in this report are merely illustrations to summarize and… Read more
MV Feeder Short-circuit Protection
A short circuit is a serious incident that affects power system components. It is therefore very important that the protection system detects short circuits and trips the associated switching equipment. The terms overcurrent relay and overload relay will be used… Read more
A Practical Guide To Earth Resistance Testing
The simplest and somewhat misleading idea of a good ground for an electrical system is a section of iron pipe driven into the earth with a wire conductor connected from the pipe to the electrical circuit (Figure 1). This may,… Read more
Practical handbook for substation operation & maintenance engineers
This handbook consists of two parts. The first one deals with preventative maintenance of substation equipment and protective switchgears. Second part deals with preventative maintenance of transmission lines. The emphasis has been given to include the operation and maintenance procedures… Read more
General
Engineering Guides
Engineering Guides
Becoming the good electrical engineer requires a lot of passion, training and commitment. This comprehensive section is prepared as a resource for individuals and professionals interested in the electrical engineering career path.
In this section you will find very usefull books and guides related to electrical science in general, AC/DC electrical circuits, network protection, electrical installations, lighting etc.
BrowsePower Substation
Handbooks
Handbooks
Substation engineers nowdays are involved in projects from design and conceptualization to maintenance. Because of the wide range of industries using electrical engineers, many engineers specialize in some of the sub-discipline of electrical engineering.
Depending on background and expertise, projects can include systems such as energy transmission and distribution, protection and control etc.
BrowseMS Excel Spreadsheets
(XLS, XLSX)
(XLS, XLSX)
This section is dedicated to tools every electrical engineer can use in daily work. These spreadsheets developed by enthusiasts will make your job much more easier, alowing you to shorten the time used for endless calculations of power cables, voltage drop, power factor, circuit breakers, capacitors, cable size, power transformers etc.
Just to mention that all calculation spreadsheets are FREE for download!
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