Power Substation
Why Community Acceptance Is Important for Planning, Design and Construction of Substation?
Community acceptance generally encompasses the planning, design, and construction phases of a substation as well as the in-service operation of the substation. It takes into account those issues that could influence a community’s willingness to accept building a substation at… Read more
Sep 30, 2013 | By Edvard Csanyi
Power Substation
Do Your Substation Devices Speak IEC 61850? They Should, It’s Time.
Since being published in 2004, the IEC 61850 communication standard has gained more and more relevance in the field of substation automation. It provides an effective response to the needs of the open, deregulated energy market, which requires both reliable… Read more
Sep 27, 2013 | By Edvard Csanyi
Energy and Power
5 Most Common Offshore Oil and Gas Production Facility Types (You Can See Today)
Offshore, depending on size and water depth, a whole range of different structures are used. In the last few years, we have seen pure sea bottom installations with multiphase piping to shore and no offshore topside structure at all. Replacing… Read more
Sep 25, 2013 | By Edvard Csanyi
High Voltage
Five special transformers for industrial applications you should know about
A number of industry applications require specific industrial transformers due to the usage of power (current) as a major resource for production. Electric arc furnaces (EAF), ladle furnaces (LF) and high-current rectifiers need a specific design to supply the necessary… Read more
Sep 23, 2013 | By Edvard Csanyi
Electric Motor
Testing and commissioning procedure for electric motors
It should be noted that the scope of motor testing depends upon the motor type and size, this being indicated on the inspection forms. Motor vibration shall be measured in a tri-axial direction, i.e.: Point x axis – side of… Read more
Sep 20, 2013 | By Edvard Csanyi
Energy and Power
An Overview Of Control (Ice Cube) Relays
An electromechanical relay is an electrical switch actuated by an electromagnet coil. As switching devices, they exhibit simple “on” and “off” behavior with no intermediate states. The electronic schematic symbol for a simple single-pole, single-throw (SPST) relay is shown here:… Read more
Sep 18, 2013 | By Edvard Csanyi
Energy and Power
Comparison Of Neutral Earthing Methods
Neutral earthing systems are very similar to circuit breakers in that they do nothing until something in the system goes wrong! There are several methods for system earthing which can be generally divided into three main categories: Insulated earthing, Solid… Read more
Sep 16, 2013 | By Edvard Csanyi
Energy and Power
Lightning And Surge Protection For Cable Networks And Antennas For TV (Part 2)
Continued from part one: Lightning And Surge Protection For Cable Networks And Antennas For TV (Part 1) If an antenna is protected by isolated air-termination systems it means: – That in the area of flat roofs an air-termination rod will be… Read more
Sep 13, 2013 | By Edvard Csanyi
Electric Motor
Sizing The DOL Motor Starter Parts (Contactor, Fuse, Circuit Breaker and Thermal Overload Relay)
In this technical article we’ll calculate the size of each part of DOL motor starter for the system voltage 415V, 5HP three phase household application induction motor, code A, motor efficiency 80%, motor RPM 750, power factor 0.8 and overload… Read more
Sep 11, 2013 | By Jignesh Parmar
Energy and Power
Lightning And Surge Protection For Cable Networks And Antennas For TV (Part 1)
IEC 60728-11 complies with the state of the art and offers easy, standardized and effective protective mechanisms against the effects of lightning strikes into antennas. Antennas installed according to this standard do not increase the probability of lightnings to strike… Read more
Sep 09, 2013 | By Edvard Csanyi
Cables
Selection Of Number Of Cable Cores With Emphasis On Sizing Parameters
The selection of number of cable cores basically depends on the type of system where it is going to be installed. Generally we have two types of systems: A perfectly balanced system and A system with some degree of unbalance… Read more
Sep 06, 2013 | By Chirag Singhal
Energy and Power
Determining the soil resistivity to design a good substation grounding system
It is essential to determine the soil resistivity and maximum grid currents to design a substation grounding system. The touch and step voltages are directly proportional to these values. Overly conservative values of soil resistivity and grid current will increase… Read more
Sep 04, 2013 | By Edvard Csanyi
Electrical Lectures
Electrical Thumb Rules You MUST Follow (3)
Continued from second part: Electrical Thumb Rules You MUST Follow (Part 2) For Motor Size of Capacitor = 1/3 Hp of Motor ( 0.12x KW of Motor) For Transformer < 315 KVA 5% of KVA Rating 315 KVA to 1000… Read more
Sep 02, 2013 | By Jignesh Parmar
