Technical Specification Of 11 kV SCADA Controlled Indoor Switchgear (With Interlocking Diagrams)
This is an example how to describe your requirements for 11 kV switchgear which is SCADA controlled. Switchgear consist of 11kV busbar, fixed type circuit breakers, disconnectors and associated control… Read more
Dec 13, 2017 | By Edvard Csanyi
Seven Bad Effects Of Corona On Transmission Lines
All the diverse ionization processes involved in producing corona discharges in the highly stressed regions near the conductors of transmission lines, as well as the creation and movement of charged… Read more
Dec 08, 2017 | By Edvard Csanyi
Current Systems (AC/DC) And Voltage Levels Basics You Must Never Forget
There are many electrical engineering basics you really must know at any time, even in the middle of the night! The basics we will discuss here are current systems and… Read more
Nov 29, 2017 | By Edvard Csanyi
How To Choose System’s Earthing Point And What Is The Practice Throughout The World
Normally in directly earthed and effectively earthed systems, every available neutral point is earthed. Deviations from this occur when the transformer’s neutral points are left unearthed. This is done to… Read more
Nov 27, 2017 | By Edvard Csanyi
Differential Protection Of Feeders For Transformers And Tee-Offs (Tapped Lines)
On transformer feeders, the transformer and line or cable are connected in series and form a unit. In this manner, one CB can be saved. On feeders with tee-offs, transformers… Read more
Nov 20, 2017 | By Edvard Csanyi
Course on AC machines, transformers, rectifiers and inverters, electrical drives and UPS
Power has two distinct effects in our lives: On one hand we have to produce it, transmit it and receive it in a way that is affordable, reliable, and with… Read more
Oct 30, 2017 | By Edvard Csanyi
Commissioning Numerical Protection and Procedure For Carrying Out Performance Tests
Numerical protection is based on a number of microprocessors that can be programmed to reproduce virtually any type of protection and relay. It represents important advantages in reliability, space and… Read more
Oct 30, 2017 | By Edvard Csanyi
How bad harmonics influence the work of motors and generators, transformers, capacitors etc.
The distortion in the waveform in the load current of any nonlinear device causes similar changes in the voltage waveform relative to the harmonic impedance of the source network. This… Read more
Oct 25, 2017 | By Edvard Csanyi
Designing a new IEC 61850 substation architecture and solving encountered issues
The primary role of Substation Automation System (SAS) is to provide safe, secure, and reliable local/remote control and monitoring of high-voltage AC distribution and transmission stations. Historically, the Substation Automation… Read more
Oct 23, 2017 | By Edvard Csanyi
Troubleshooting three basic hardwired control circuits used in starting electric motor
Generally speaking, basic control circuits are used in starting, stopping, sequencing, and safety automatic interlocking of equipment and machines. The control circuit consists of relays, relay contacts, contactors, timers, counters,… Read more
Oct 23, 2017 | By Edvard Csanyi
Differential protection of transformers, machines, busbars, lines and feeders
Differential protection is very useful method of protection that can be applied to the protection of any network component, such as transformers, machines, busbars, lines and feeders. The differential relay… Read more
Oct 16, 2017 | By Edvard Csanyi
Seven design diagrams that every HV substation engineer MUST understand
A substation engineer should have a good understanding of the electrical equipment and layout of HV power substation. It’s also important to understand relationship between protection and the other equipment… Read more
Oct 04, 2017 | By Edvard Csanyi
How to choose a form of separation for LV switchboard and how to classify them
By form of separation it is meant the type of subdivision provided within the switchboard. Separation by means of barriers or partitions (metallic or insulating) may have several functions. And… Read more
Sep 25, 2017 | By Edvard Csanyi
Specific capacitor installations & reactive compensation of asynchronous motors / transformers
Although in general, the calculation of the reactive power to be installed is initially carried out globally, it is advisable not to be swayed by the apparent simplicity of this… Read more
Aug 30, 2017 | By Edvard Csanyi
5 special applications of residual current devices (RCDs)
Normally residual current devices (RCDs) are used for protection against direct and indirect contacts. An RCD can detect low leakage currents that could flow through the body of a person…. Read more
Aug 16, 2017 | By Edvard Csanyi