Protection
Three basic principles of differential protection you SHOULD properly understand
The three basic principles of differential protection explained in this article, which has been known for decades, are still applicable and independent of the specific device technology. The differential protection compares the measured values with regard to magnitude and phase…. Read more
Mar 29, 2021 | By Edvard Csanyi
Power Substation
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Spring Gift! - 20% Off on Pro Membership Plan with coupon 110KVAC
Upgrade
The mystery of nuisance tripping incidents in transformer protection that worry engineers
This technical article deals with transformer failure incidents due to nuisance tripping caused by various design flaws, operational conditions, or improper protection relay settings. The focus is on differential protection and ground protection, as they account for a considerable number…...
Membership Upgrade Required
This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Spring Gift! - 20% Off on Pro Membership Plan with coupon 110KVAC
Upgrade
Already a member? Log in here
Feb 22, 2021 | By Salem Alshahrani
Power Substation
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Spring Gift! - 20% Off on Pro Membership Plan with coupon 110KVAC
Upgrade
Mastering GIS control circuits: AC/DC auxiliary circuits and circuit breaker closing circuit
A gas-insulated substation (GIS) is usually utilized in high voltage applications in which all conductive parts are encapsulated in sealed cylinders with SF6 as the insulating medium. The air-insulated substation (AIS), on the other hand, has air as an insulating…...
Membership Upgrade Required
This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Spring Gift! - 20% Off on Pro Membership Plan with coupon 110KVAC
Upgrade
Already a member? Log in here
Jan 11, 2021 | By Salem Alshahrani
Power Substation
Four ways of ensuring proper selectivity in MV/HV electrical network protection
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 important selectivity principles in a simple manner. It’s important to… Read more
Jan 04, 2021 | By Edvard Csanyi
Electrical Lectures
The facts about numerical relays that every electrical engineer should know
The first protection devices based on microprocessors were employed in 1985. The widespread acceptance of numerical technology by the customer and the experiences of the user helped in developing the second generation numerical relays in 1990. Modem power system protection… Read more
Dec 23, 2020 | By Edvard Csanyi
Protection
Exciting and inrush currents in transformers that often make protection relays go crazy
If normal voltage is impressed across the primary terminals of a transformer with its secondary open-circuited, a small exciting current flows. This exciting current consists of two components, the loss component and the magnetizing component. The loss component is in… Read more
Dec 07, 2020 | By Edvard Csanyi
Protection
Ohmic relay applications for protecting power system, lines and generators
This class of relays was originally used to protect transmission lines and were believed to measure the distance from the relay location to a fault. Currently, several types are applied to power systems for protecting lines during faults, generators during… Read more
Nov 09, 2020 | By Edvard Csanyi
Electric Motor
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Spring Gift! - 20% Off on Pro Membership Plan with coupon 110KVAC
Upgrade
Mastering Motor Control Center (MCC): Wiring diagrams and equipment from zero to hero
This article explains the standard MCCs components using the single-line and wiring diagrams to interpret the functionality of each component and the integral MCC function. The single line and the wiring drawings are a language of pictures that require comprehension…...
Membership Upgrade Required
This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Spring Gift! - 20% Off on Pro Membership Plan with coupon 110KVAC
Upgrade
Already a member? Log in here
Nov 02, 2020 | By Salem Alshahrani
Power Substation
The facts about switchyards, incoming and outgoing feeder connections, CTs and VTs
What do you need to know about designing a switchyard? Well, to simplify, you need a lot and it’s not that simple. Switchyards need to be designed with respect to the foreseeable voltage stress, switching, breaking and short-circuit withstand capability,… Read more
Oct 21, 2020 | By Edvard Csanyi
Protection
How primary feeder, distribution transformer, fuses and service operate in radial networks
As we already know, distribution transformers step down from the distribution or primary feeder voltage to the utilization voltage. They are connected to the primary feeder, sub-feeders, and laterals through primary fuses or fused cutouts. The primary fuse disconnects its… Read more
Oct 12, 2020 | By Edvard Csanyi
Power Substation
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Spring Gift! - 20% Off on Pro Membership Plan with coupon 110KVAC
Upgrade
13 terms concerning relaying, measurements, and breakers used by protection engineers
It’s not unusual to see graduates and engineers from other disciplines experience difficulties in properly interpreting the terminology used in applying relays, analyzing their performance, and designing protection systems. Actually, this is normal, but during the project, this lack makes…...
Membership Upgrade Required
This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Spring Gift! - 20% Off on Pro Membership Plan with coupon 110KVAC
Upgrade
Already a member? Log in here
Oct 07, 2020 | By Edvard Csanyi
Medium Voltage
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Spring Gift! - 20% Off on Pro Membership Plan with coupon 110KVAC
Upgrade
Learn how to analyze MV switchgear wiring diagrams and single line diagram
The capability of reading different types of drawings is an essential skill to perform almost all of the engineering tasks. The engineering drawings form the building blocks of industry method to convey detailed information to implement, gather, troubleshoot, maintain, and…...
Membership Upgrade Required
This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Spring Gift! - 20% Off on Pro Membership Plan with coupon 110KVAC
Upgrade
Already a member? Log in here
Oct 05, 2020 | By Salem Alshahrani
Energy and Power
Eight fuse characteristics you must consider when designing protection circuits
Fuses were the first type of protection to be used, and they still have a place in numerous applications. Although they do not have the flexibility of adjustment and resetting capacity of a circuit breaker, they are nevertheless reliable, high… Read more
Sep 16, 2020 | By Edvard Csanyi
Protection
Protection impacts in the intentional islanding of Distributed Generation (DG)
Distributed Generation can potentially increase the distribution system reliability and provide additional technical and economical benefits by allowing intentional islanding or so called micro-grid operation of DGs. The current IEEE Standards (old IEEE 929 and new IEEE 1547) and UL… Read more
Sep 02, 2020 | By Edvard Csanyi
Energy and Power
Earth fault protection in a solidly (effectively) earthed high voltage power systems
The fault statistic shows that earth faults are the dominating fault type and therefore the earth fault protection is of main importance in a network. The type of earth fault protection used is dependent of the system earthing principle used…. Read more
Aug 24, 2020 | By Edvard Csanyi
