Five substation building services that usually lack of proper design (and make troubles later)
This technical article introduces five main principles involved with substation control building and switchyard services that make a lot of trouble to substation crew if poorly designed. The article covers…...
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Nov 20, 2019 | By Edvard Csanyi
Principles and applications of busbar protection schemes (you SHOULD know about)
In the olden days, the clearance of busbar faults was done by time-delayed distance relays or overcurrent relays, resulting in an extension of fault for a longer duration of time…. Read more
Oct 28, 2019 | By Edvard Csanyi
IED (Intelligent Electronic Device) advanced functions that make our life better
Intelligent electronic devices (IEDs) have been deployed extensively in power automation systems recently, and the shift from RTUs to IEDs is evident due to the integration and interoperability features of… Read more
Oct 16, 2019 | By Edvard Csanyi
Occurrence and detection of an earth fault in MV power systems with isolated neutral
The mode of operation of an MV industrial power system that is galvanically isolated from the public power supply is determined by the method of neutral earthing on the secondary… Read more
Oct 14, 2019 | By Edvard Csanyi
Medium voltage switches for isolation and earthing (applications & IEC 62271 ratings)
Medium voltage switches for use on 1-52kV indoor systems are predominantly used for isolation and earthing. Although the majority of these switches are air insulated, gas insulated (SF6) combination switches… Read more
Oct 09, 2019 | By Edvard Csanyi
The art of achieving selectivity between incoming feeders connected in parallel
Calculating selectivity between incoming low voltage feeders connected in parallel is never an easy task. In parallel operation of two, three and more transformers on a common busbar, the partial… Read more
Oct 07, 2019 | By Edvard Csanyi
Good practice rules for electromagnetic compatibility (EMC) of LV conductors
The search for an overall optimization of the installation with regard to electromagnetic compatibility (EMC) and its ability to function without suffering or emitting excessive interference, comes via a set… Read more
Sep 30, 2019 | By Edvard Csanyi
Operating centralized automatic compensation systems when supplying linear loads
For energy-efficient operation of decentralized multiply-fed industrial networks, each load-centre substation must have its own centralized reactive-power compensation system for automatic PF correction. The automatic reactive-power compensation systems used for… Read more
Sep 16, 2019 | By Edvard Csanyi
Interference and noise affecting transmission media in protection signalling
The transmission media that provide the communication links involved in relay protection signalling are private pilots, rented pilots or channels, power line carrier, radio and the newest and the most… Read more
Sep 09, 2019 | By Edvard Csanyi
The facts about modern rotary and static uninterruptible power systems (UPS)
This technical article covers the brief explanation of the power quality issues with the reference to the past as well as two main types of modern UPS systems – rotary… Read more
Sep 04, 2019 | By Edvard Csanyi
Case study: Failure of a transformer & switchgear buses due to a ferroresonance event
First of all, it’s good to know that the possibility of a transformer ferroresonance condition rapidly increases as the transformer is closer to generator zone. This condition may occur when…...
Premium Membership Required
This technical article/guide requires a Premium Membership. You can choose an annually based Plus, 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.Check out each plan’s benefits and choose the membership plan that works best for you or your organization.
Limited time offer! - Save 15% on Pro Membership Plan with discount code LRN15
Log In »Purchase »
Aug 23, 2019 | By Edvard Csanyi
Practical implementation of the six most common transformer protection principles
This technical article relies on the previously published article (6 alarms coming from a substation transformer you MUST take very seriously), but is much more dedicated to the implementation of… Read more
Jul 24, 2019 | By Edvard Csanyi
6 alarms coming from a substation transformer you MUST take very seriously
Transformers are the most expensive piece of apparatus in a power substation and therefore must have appropriate protection equipment installed to guard against various faults. This technical article explains a… Read more
Jul 22, 2019 | By Edvard Csanyi
Critical aspects of a distance non-unit relay protection (you should understand)
Non-unit protection consists of circuits that measure and compare the voltages and currents at the relaying point. It is able to determine the location of the fault from these values…. Read more
Jul 15, 2019 | By Edvard Csanyi
Issues with distributed generation protection (bulk power and distributed generators)
Besides a number of benefits, there are some technical problems with relay protection of distributed generators. It turned out to be one of the most problematical technical issues since its… Read more
Jul 10, 2019 | By Edvard Csanyi