High Voltage
Circuit configurations (single line diagrams) for HV and MV switchgear installations
The starting point for planning a switchgear installation is its single line diagram. This indicates the extent of the installation, such as the number of busbars and branches, and also their associated apparatus. The most common circuit configurations of high… Read more
Jan 22, 2018 | By Edvard Csanyi
Power Substation
What is what in outdoor HV substation? How to identify elements by shape and function?
It’s not always an easy task to explain what is what in high voltage substations. Shapes of the major elements are mostly similar through substations, but there are also combinations of two and more elements with integrated functions. This technical… Read more
Jan 10, 2018 | By Edvard Csanyi
Power Substation
HV Transmission Line Components (Towers, Conductors, Substations, ROWs and Roads)
The towers and conductors of a transmission line are familiar elements in our landscape. However, on closer inspection, each transmission line has common components with unique characteristics, beginnings and ends. In this article, we list main transmission line components and… Read more
Jan 08, 2018 | By Edvard Csanyi
Electric Motor
Protection Of Industrial Power Supply Systems (Fuses, MCCBs and Overcurrent Relays Settings)
As industrial operations processes and plants have become more complex and extensive, the requirement for improved reliability of electrical power supplies has also increased. The potential costs of outage time following a failure of the power supply to a plant… Read more
Jan 02, 2018 | By Edvard Csanyi
Power Substation
3 Bad Conditions That Cause False Differential Current In Power Transformer
When applying differential protection of power transformer, three bad conditions must be considered which can lead to unbalance to the currents applied to the relay (compared with the expected currents when power flow into the transformer is equal to the… Read more
Dec 27, 2017 | By Edvard Csanyi
Power Substation
Important Factors In Design Of Distribution Substations
Distribution substation design must be a combination of reliability and quality of the power supply, safety, economics, maintainability, simplicity of operation, and functionality. Safety of life and preservation of property are the two most important factors in the design of… Read more
Dec 20, 2017 | By Edvard Csanyi
Power Substation
What does a good grounding of the power substation and switching station really mean?
Provision of adequate grounding in a substation and switching stations are very important for the safety of operating personnel as well a electrical devices do not rise above tolerable thresholds and that the earth connection is rugged to dissipate the… Read more
Dec 18, 2017 | By Edvard Csanyi
Maintenance
Troubleshooting Transformer In Power Substation And Detailed Failure Investigation
Failure of transformer in power substation is not a sudden phenomenon, for that matter each and every failure will take place only after alerting through some pre-signs. If they went unnoticed or unattended will result in failure. Therefore it is… Read more
Nov 06, 2017 | By Edvard Csanyi
High Voltage
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 in the substations and the distribution system. Beside this, it’s… Read more
Oct 04, 2017 | By Edvard Csanyi
Power Substation
Substation ownership demarcation between the utility and the plant (considerations & issues)
The substation ownership demarcation between the utility and the plant is very important and should be determined carefully. Specific ownership of the substation and associated equipment may be a complicated issue that may be determined by a number of conditions… Read more
Sep 18, 2017 | By Edvard Csanyi
Medium Voltage
How to specify real service conditions for LV/MV equipment inside a substation
The various service conditions for the MV equipment inside substation are linked to the design of the installation, the design of the operating room, the site and the application surrounding the installation, and finally, the seasons. The combination of these… Read more
Sep 13, 2017 | By Edvard Csanyi
Energy and Power
The essentials of MV/HV magnetic voltage transformers
Magnetic voltage transformers are used to provide a secondary signal that is proportional to the actual prevailing primary value. These signals are used to supply measuring instruments, meters, relays and other similar apparatuses. The primary values measured are system currents… Read more
Aug 14, 2017 | By Edvard Csanyi
Energy and Power
Ten equipment you MUST recognize in every distribution substation
Distribution substation is a substation from which electric supply is distributed to the different users. In a substation there are numbers of incoming and outgoing circuits each having its isolator, circuit breaker, transformers etc. connected to bus-bar system. These equipment… Read more
Aug 11, 2017 | By Edvard Csanyi
Energy and Power
The most common methods of measuring the resistance of an earth electrode
When an earth electrode system has been designed and installed, it is usually necessary to measure and confirm the earth resistance between the electrode and “true Earth”. The most commonly used method of measuring the earth resistance of an earth… Read more
Aug 09, 2017 | By Edvard Csanyi
Energy and Power
Practical advice for positioning of circuit breakers inside LV switchboard
Mounting of the different mechanical and electrical components (enclosures, busbars, functional units – circuit breakers, etc.) which constitute the LV switchboard defined by the original manufacturer must be carried out in compliance with the instructions (technical catalogue/assembly instruction manual) of… Read more
Aug 07, 2017 | By Edvard Csanyi
