Energy and Power
Installing a submarine transmission cable, how they do it
Installing a submarine transmission cable is a costly and challenging activity. The lifetime of a submarine cable might be tens of years and the technical interventions for its repairing in case of faults are also costly and difficult. Therefore the… Read more
Sep 11, 2017 | By Edvard Csanyi
Electric Motor
Specific capacitor installations & reactive compensation of asynchronous motors / transformers
Although in general, the calculation of the reactive power to be installed is initially carried out globally, it is advisable not to be swayed by the apparent simplicity of this process, and to look further for the optimum locations for… Read more
Aug 30, 2017 | By Edvard Csanyi
Energy and Power
Should transfer switch be equipped with contactors or circuit breakers? Manual or automatic?
Transfer switches support multiple operation modes (manual, automatic, non-automatic, bypass isolation, etc.) and feature a range of different switching mechanisms (contactors, circuit breakers). Transfer switches are used to protect critical electrical loads against loss of power. The load’s normal power… Read more
Aug 23, 2017 | By Edvard Csanyi
Energy and Power
Nine power generating units grouped by prime mover you should know about
Many types of power generating plants are in use and possible for the future, including steam plants fueled by coal, oil, or gas, nuclear plants, hydro plants and plants which use renewable energy. Most types of power generating units can… Read more
Aug 18, 2017 | By Edvard Csanyi
Energy and Power
5 special applications of residual current devices (RCDs)
Normally residual current devices (RCDs) are used for protection against direct and indirect contacts. An RCD can detect low leakage currents that could flow through the body of a person. It thus provides additional protection if the normal protection means… Read more
Aug 16, 2017 | By Edvard Csanyi
Energy and Power
The essentials of MV/HV magnetic voltage transformers
Magnetic voltage transformers are used to provide a secondary signal that is proportional to the actual prevailing primary value. These signals are used to supply measuring instruments, meters, relays and other similar apparatuses. The primary values measured are system currents… Read more
Aug 14, 2017 | By Edvard Csanyi
Energy and Power
Ten equipment you MUST recognize in every distribution substation
Distribution substation is a substation from which electric supply is distributed to the different users. In a substation there are numbers of incoming and outgoing circuits each having its isolator, circuit breaker, transformers etc. connected to bus-bar system. These equipment… Read more
Aug 11, 2017 | By Edvard Csanyi
Energy and Power
The most common methods of measuring the resistance of an earth electrode
When an earth electrode system has been designed and installed, it is usually necessary to measure and confirm the earth resistance between the electrode and “true Earth”. The most commonly used method of measuring the earth resistance of an earth… Read more
Aug 09, 2017 | By Edvard Csanyi
Energy and Power
Practical advice for positioning of circuit breakers inside LV switchboard
Mounting of the different mechanical and electrical components (enclosures, busbars, functional units – circuit breakers, etc.) which constitute the LV switchboard defined by the original manufacturer must be carried out in compliance with the instructions (technical catalogue/assembly instruction manual) of… Read more
Aug 07, 2017 | By Edvard Csanyi
Energy and Power
MV network diagrams for feeding secondary switchboards and MV/LV transformers
Let’s take a look at the main MV network diagrams and structures used to feed secondary switchboards and MV/LV transformers. The complexity of the diagrams differs, depending on the level of power supply security required. Note that there are many… Read more
Aug 04, 2017 | By Edvard Csanyi
Energy and Power
How to install a manual transfer switch for a backup system in 16 steps
A manual transfer switch is installed next to the main service panel to override the normal electrical service with power from a backup generator during a power outage. Manual transfer switches require an operator to change the power source, while… Read more
Aug 02, 2017 | By Edvard Csanyi
Energy and Power
With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
Good to know! - Save 50% on all video courses with Enterprise plan.
Upgrade
Reactive power and power factor measurement in industrial plant
A varmeter is used to measure the reactive power in an industrial plant that is supplied by an 8300-V, three-phase, four-wire line. The plant load is estimated to be 300 kVA at 0.8 pf. Design a suitable measuring system. The…...
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.
Good to know! - Save 50% on all video courses with Enterprise plan.
Upgrade
Already a member? Log in here
Jul 31, 2017 | By Edvard Csanyi
Energy and Power
20 Simple Questions to Check Your Overcurrent Protection Knowledge
As you already know, reliable overcurrent protective devices, such as fuses and circuit breakers, prevent or minimize costly damage to transformers, conductors, motors, equipment, and the other many components and loads that make up a complete electrical system. As an… Read more
Jul 31, 2017 | By Edvard Csanyi
Energy and Power
Unbalance protection of grounded & ungrounded wye shunt capacitor banks
The protection of shunt capacitor banks against internal faults involves several protective devices in a coordinated scheme. Typically, the protective elements found in a shunt capacitor banks (SCB) for internal faults are: individual fuses (not discussed here), unbalance protection to… Read more
Jul 26, 2017 | By Edvard Csanyi
Energy and Power
Three proven ways to reduce electrical energy losses in buildings
As savings in terms of costs are the main concern for the operators, the first approach is to try to reduce electrical energy losses in buildings. Also, the electricity supply network itself consumes energy. Moreover, if it is not suitably… Read more
Jul 24, 2017 | By Edvard Csanyi
