Commissioning substation busbars in an efficient and modern way
The commissioning procedure of substation busbars for differential protection and other busbar protection schemes involves a large number of input and output circuits that require a verification check in both… Read more
Jun 13, 2017 | Testing and Commissioning
Four most popular PLC programming languages for implementation of control diagrams
PLCs from different manufacturers can be programmed in various ways. Popular programming languages for PLCs are ladder diagrams, Function Block Diagrams (FBD), and statement list. With a few exceptions, a… Read more
Jun 12, 2017 | Industrial Automation
Transformer protection systems and their primary switching arrangements
The protection of power transformers is not just a question of detecting faults within the windings, cores, or tank. It’s very often a question of how the transformer is integrated…...
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Jun 12, 2017 | Premium Content ♛
Philosophy of a good relay protection settings for machines and plants
The objectives of the protection system are: to limit damage to people and to the plant, permit different service conditions, guarantee maximum service continuity for the plant not affected by faults and activate the automatisms… Read more
Jun 09, 2017 | Monitoring
Did you test your electrician’s skills recently? Take the quiz. It’s time!
It’s always a good idea to put the sparks into your memory and shed light on things you have learned years ago. Whether you are a rookie in a field… Read more
Jun 07, 2017 | Energy and Power
How backup protection is used to improve fault-clearing system in HV networks
All elements in the fault-clearing system do not always operate correctly. Protection relays may fail to operate or may operate unwantedly. Switching devices may fail to interrupt the fault current…....
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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.Log InSign Up
Jun 05, 2017 | Premium Content ♛
3 earthing fault typologies and connection of the CB poles in a DC network
In order to break a short-circuit current in a d.c. system, it is necessary to connect the circuit breaker (CB) poles in a suitable way. To carry out this operation,… Read more
Jun 05, 2017 | Energy and Power
Low voltage ride through in grid connected hybrid renewable energy systems
Researches so far shows that, by 2020, around 20% of the total energy production worldwide will be generated from renewable energy. But the major problem with the standalone system is… Read more
Jun 02, 2017 | Renewable Energy
12 installation tips for implementing a good residual protection
All installations have an earth leakage current that is mainly due to the conductor’s capacitive leakage and to anti-parasitic or EMI filtering capacitors, for example class I equipment. The sum… Read more
Jun 02, 2017 | Energy and Power
8 typical transformer protection schemes with correctly selected relays
This technical article shows application hints for typical transformer protection schemes where SIPROTEC 4 relays are used. Let’s see the most typical transformer applications and their protection schemes: Small transformer infeed… Read more
May 31, 2017 | Protection
Generation of high voltages in the lab (AC/DC, switching and lightning impulse)
Benjamin Franklin – The man who dared to fly his kite in a thunder storm! In this technical article laboratory tests and test equipment needed to assess the performance of… Read more
May 29, 2017 | High Voltage
Generator stability and what happens when it’s out of step
Generators can really be described as the reason for being a power station. The operation of the turbine-generator system is second in criticality only to the operation of the nuclear…...
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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.Log InSign Up
May 27, 2017 | Premium Content ♛
Recommended maintenance practice for electric motors and generators
Motors are inherently highly reliable, requiring little routine maintenance. This remains true for most duties but may not be so where environmental conditions are aggressive, the starting duty is onerous,… Read more
May 25, 2017 | Electric Motor
Selecting the suitable frequency converter and motor for these 3 applications
The motor is selected according to the basic information about the process. Speed range, torque curves, ventilation method and motor loadability give guidelines for motor selection. Often it is worth… Read more
May 24, 2017 | Electric Motor
4 medium voltage switching equipment for primary substation installations
This technical article covers the medium voltage switching equipment intended mainly for primary substation installations. The target is to give some basic knowledge and difference between 4 main piece of… Read more
May 22, 2017 | Medium Voltage
