4 ways to bolster the short-circuit withstand capability of HV transformers (in use)
There are many methods applied to bolster the short circuit withstand capability of the transformers: improvement of the materials, reforming of the design and good maintenance in the operation process… Read more
Jun 13, 2018 | Protection
MV/LV Power Substations Design and Schematics Notes (Network Supply and Enclosure Types)
Early consultation with the local Electricity Distributor is essential for agreement on a mutually approved MV/LV substation to act as the intake point for a particular site. This consultation is… Read more
Jun 11, 2018 | Low Voltage
Critical role of time synchronisation in IEC 61850 based digital protection systems
The needs and exact precision of time synchronization in IEC 61850 based digital protection systems have evolved. With new technologies and better distribution methods, most modern intelligent electronic devices (IEDs)…...
PREMIUM Membership Required
This page requires a Premium Membership. Get access to premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership that works best for you or your organization.You can purchase annually based Plus, Pro, or Enterprise membership.
Black Friday Offer!
20% on EEP Pro Premium Membership - use discount code BLACKFRIDAY20Log InSign Up
Jun 08, 2018 | Premium Content ♛
Why Raise the Power Factor? The Basics Every Electrical Engineer Should Understand.
A low power factor causes poor system efficiency. The total apparent power must be supplied by the electric utility. With a low power factor, or a high-kilovar component, additional generating… Read more
Jun 06, 2018 | Electric Motor
Communications in power system protection (medias, protocols and network topologies)
A communication system consists of a transmitter, a receiver and communication channels. Type of medias and network topologies in communications provide different opportunities to advance the speed, security, dependability, and… Read more
Jun 04, 2018 | Protection
Design of primary and secondary power distribution in car manufacturing plants (BMW, VW…)
When power supply systems for car manufacturing plant are planned, each individual problem can be faced in various ways: by means of technical solutions that feature specific technical advantages. This… Read more
May 30, 2018 | Low Voltage
Current heat losses produced by electrical operational equipment in LV switchgear
It is widely accepted by all manufacturers that accumulation of heat (leading to overheating of devices) in switchgear is one of the greatest risks that could shorten the life expectancy… Read more
May 28, 2018 | Energy and Power
How optical communication cables work and how they differ from other cables
In several previous articles I mentioned optical fibre in the context of substation automation, protection signaling, communication between electrical devices, LAN communications, etc. Now I will get into details of… Read more
May 23, 2018 | Cables
What’s really important to achieve in transmission line protection relaying?
As you already know, the real purpose of transmission line protection is to detect faults or abnormal operating conditions and to initiate corrective action. Protective relays must be able to… Read more
May 21, 2018 | Protection
Earthing In a Nutshell (Classification, Isolated Neutral, Methods Of Neutral Grounding)
The term earthing or grounding means connecting the non-current-carrying parts of the electrical equipment or the neutral point of the supply system to the general mass of earth in such…...
PREMIUM Membership Required
This page requires a Premium Membership. Get access to premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership that works best for you or your organization.You can purchase annually based Plus, Pro, or Enterprise membership.
Black Friday Offer!
20% on EEP Pro Premium Membership - use discount code BLACKFRIDAY20Log InSign Up
May 18, 2018 | Premium Content ♛
Lecture Notes In DC Electric Sources and Principles Of Electrical Circuits
DC sources refer to sources of electrical energy which are associated with constant voltages and currents. A DC power supply can be constructed as an electronic circuit operating from the… Read more
May 16, 2018 | Electrical Lectures
The essential physics behind transformer differential protection (You MUST know)
Transformers are important system components available in many different constructions. The range of HV transformers reaches from small distribution transformers (from 100 kVA) up to large transformers having several hundred… Read more
May 14, 2018 | Protection
Substation level data acquisition architecture and communication protocol (IEC 61850)
This technical article reviews substation level data acquisition architecture and communication protocol described in IEC 61850. IEC 61850 is the current international standard for substation automation (SA). The focus of… Read more
May 09, 2018 | Monitoring
The Most Used Outdoor Switchyard Layouts You Should Know About
The arrangement of outdoor switchgear layouts and installations is mostly influenced by economic considerations, in particular adaptation to the space available and the operational requirements of reliability and ease of… Read more
May 07, 2018 | Power Substation
High Voltage Cables In a Nutshell (Technology, Bonding, Installation and Service)
Differences between the electrical characteristics of overhead transmission lines and high voltage AC cables are fundamental and must be considered. This article gives a brief introduction to cable technology, with…...
PREMIUM Membership Required
This page requires a Premium Membership. Get access to premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership that works best for you or your organization.You can purchase annually based Plus, Pro, or Enterprise membership.
Black Friday Offer!
20% on EEP Pro Premium Membership - use discount code BLACKFRIDAY20Log InSign Up
May 04, 2018 | Cables ♛
