As we all know, all substation equipment (should) have a metal plate with its “name” on it. Here we’ll discuss power and distribution transformers and information that their nameplates carry.... Read more
The post Learn how to interpret transformer nameplate information appeared first on EEP - Electrical Engineering Portal.
Selectivity study of a power system is usually considered as an advanced job for advanced engineers, mostly relay protection engineers. This article will try to get close to a few... Read more
The post Four ways of ensuring proper selectivity in MV/HV electrical network protection appeared first on EEP - Electrical Engineering Portal.
An auxiliary DC power system that consists of a charger, battery bank, DC distribution system, and monitoring system is a critical part of the primary/secondary substation. It is directly associated... Read more
The post Sizing of 110V DC charger for MV panels – Auxiliary power supply in power substations appeared first on EEP - Electrical Engineering Portal.
Switchgear is an integral part of the electrical protection system, which is used for isolating the faulty parts as well as de-energizing the downstream equipment during maintenance or any other... Read more
The post My advice in operating an unknown energized LV switchgear appeared first on EEP - Electrical Engineering Portal.
Each piece of electrical equipment on a distribution system has a probability of failing. When first installed, a piece of equipment can fail due to poor manufacturing, damage during shipping,... Read more
The post The most common failure modes of electrical equipment in distribution systems appeared first on EEP - Electrical Engineering Portal.
Typically, protecting an electrical system, low-voltage, medium-voltage, or high-voltage, whichever it is, does not entirely depend upon a single component. The protection system is often a coordinated combination of multiple... Read more
The post Dos and don’ts in operating LV/MV circuit breakers, relays, disconnectors and fuses appeared first on EEP - Electrical Engineering Portal.
Relay protection is nowadays completely digitalized and very sophisticated; there is no doubt about that. But, do electrical engineers really understand what they do when setting parameters and navigate through... Read more
The post The essentials of overcurrent protection you are not allowed to forget (types and principles) appeared first on EEP - Electrical Engineering Portal.
The electrical earthing system is designed to provide safe and correct operation of the network under normal, earth fault, and transient conditions. During earth fault conditions, large fault currents may... Read more
The post Distribution earthing systems in LV/MV networks (design instructions and precautions) appeared first on EEP - Electrical Engineering Portal.
Communication systems of electric utilities have become increasingly critical to electric system protection, operation, and maintenance. For fast tripping and clearing of system faults, communication-aided relaying has become a common... Read more
The post Schematics and docs needed for communication systems of substation protective relaying system appeared first on EEP - Electrical Engineering Portal.
The distribution substation is one of the most important yet arguably the most troublesome section of the power system. Prolonged operation and frequent switching make distribution substations more prone to... Read more
The post Troubleshooting operation of MV/LV distribution substation (most common problems) appeared first on EEP - Electrical Engineering Portal.
At a casual look, a capacitor seems to be a pretty boring and unsophisticated device, that is, two metal plates separated by a dielectric insulating material. Couldn’t be simpler than... Read more
The post The difference in how series and shunt capacitors regulate the voltage and reactive power flows appeared first on EEP - Electrical Engineering Portal.
This technical article we will go through a number of existing applications for conducting a wide range of electrical studies. However, the practice says that studies involving load flow and fault... Read more
The post Eleven most important calculations you can perform with power system analysis software appeared first on EEP - Electrical Engineering Portal.
The installation of a new MV/LV electrical substation is often part of a more global project, and it is not always the subject of very detailed attention. However, the consideration... Read more
The post Thoughtful considerations to design MV/LV distribution substations for extended service life appeared first on EEP - Electrical Engineering Portal.
This article aims to shed some light on the so-called physical engineering activity in switchyard design in conjunction with some engineering computations. The physical layout engineering tackles the plot plan... Read more
The post The art of the transmission switchyard design: The physical layout engineering (Case study included) appeared first on EEP - Electrical Engineering Portal.
This technical article addresses some of the most important reasons, dos and don’ts in making the substation design choices between designing a new modern and digital substation or retrofitting the... Read more
The post Substation design choices and reasons for a new modern vs retrofit and upgrade an old one appeared first on EEP - Electrical Engineering Portal.
Voltage transformer supervision, often referred to as VT fuse fail supervision relay, plays a pivotal role in safeguarding electrical systems. Its primary objective is to detect any potential failure within... Read more
The post A comprehensive guide to voltage transformer (VT) circuit supervision techniques appeared first on EEP - Electrical Engineering Portal.
First, let’s say a word or two about the essentials of power distribution systems for our young electrical engineers. An electric distribution system, or distribution plant as it is sometimes... Read more
The post The loop electrical distribution system used to supply bulk loads (industrial plants and buildings) appeared first on EEP - Electrical Engineering Portal.
As we delve deeper into this article, we will explore the various types of interlocking mechanisms used for Gas-Insulated Substation (GIS), their applications in substations, power plants, and electrical installations,... Read more
The post Mastering Interlock Logic and Schemes for a Gas-Insulated Substation (132 kV GIS Example) appeared first on EEP - Electrical Engineering Portal.
This article aims to provide a comprehensive analysis of the essential inspection and testing processes, emphasizing their importance in the effective functioning of medium-voltage switchgear. The inspection and testing standards... Read more
The post Prepare yourself for successful inspection and testing of MV metal-clad switchgear appeared first on EEP - Electrical Engineering Portal.
The auxiliary DC control power system is considered the most crucial element of a protection, control, and monitoring system. The failure of the direct current (DC) control power can result... Read more
The post Auxiliary DC power system used for fault detection, trip coils and remote operation appeared first on EEP - Electrical Engineering Portal.
