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Motor Starting Calculation (MS Excel Spreadsheet)
A motor starting case study for any given electrical network can be performed by reducing the network to a smaller equivalent network consisting of a source (generator/grid), the starting motor… Read more
Design of 33kV switchyard (equipment, SLD, and layout) for small hydro-power plant
Major considerations for the selection of an economical and suitable main single line diagram and switching scheme for a substation are voltage level, site limitation and general and special considerations…. Read more
CT saturation in industrial applications – Analysis and application guidelines
It is possible that relatively low-ratio CTs are applied for protective relaying of small loads fed from switchgear and motor controllers of relatively high short-circuit capacity. Assume the worst-case scenario… Read more
AC/DC motors installation, principle of operation, troubleshooting and repair
A motor-branch circuit is a wiring system extending beyond the final automatic overload protective device. Thermal cutouts or motor overload devices are not branch-circuit protection. These are supplementary overcurrent protection…. 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… Read more
Substation automation and communications for controlling primary equipment (switches, breakers, etc.)
For many years, Remote Terminal Unit (RTU) has been the automation system’s traditional heart. RTU has been a backbone of distributed automation and SCADA systems. This paper focuses on substation… Read more
Design guide for upgrading existing secondary substations to be smart and intelligent
The system architecture here describes the generic conceptual model for the understating of the structure and functions of the system. The emulation imitates the behaviour of the system elements in… Read more
Design process for the new primary substation (structure selection and calculations)
The scope of this document is to study and develop methodology by which techno/economical dimensioning of primary substation in power system can be done. The document considers existing power supply… Read more
Handbook on EHV overhead lines and underground cables
This book is a guide to the protection regulations for extra-high-voltage (EHV) overhead lines and underground cables for contractors, consultants, strategic partners, as well as anyone who is working on… Read more
Connecting LV micro grids to distribution automation
DA (Distribution Automation) means managing, protecting, using and controlling of electricity distribution networks. Automation includes different type of control and measurements functions, transferring of status of devices and alarms etc…. 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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