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Electrical systems within a nuclear power plant (NPP) deserve significant design considerations. The availability of on-site as well as off-site power plays a crucial role in nuclear power plant safety… Read more
Apr 29, 2019 | Edvard
Ultra-high voltage (UHV) AC gas insulated switchgear (GIS) can corrctly work only if all its internal components are properly assembled and the metal enclosure is filled with SF6 gas at…...
Apr 25, 2019 | Edvard
The AC secondary network system is the system that has been used for many years to distribute electric power in the high-density, downtown areas of cities, usually in the form… Read more
Apr 24, 2019 | Edvard
This technical article provides three examples of the application of modern relays to transformer protection. As there are many modern protection relays nowadays that provide advanced software to simplify the… Read more
Apr 22, 2019 | Edvard
This technical article describes single line diagrams of two typical power substations 66/11 kV and 11/0.4 kV and their power flow, principles of incoming lines (incomers) and outgoing lines (feeders),… Read more
Apr 17, 2019 | Edvard
High voltage substations are pretty complex to understand since they have a way too many elements and each element is complex for itself and it depends on many system parameters… Read more
Apr 15, 2019 | Edvard
Single line diagrams are used in common engineering practice as graphical representation of electrical switchboard or assembly containing more sections, i.e. cubicles. Basically, they are simplified and digest picture of…...
Apr 12, 2019 | Miodrag Kokotovic
It’s extremely important to work on selective coordination of circuit breakers in the design phase of a system. After switchboards, distribution panels, MCCs, lighting switchboards, etc. are installed, there typically… Read more
Apr 10, 2019 | Edvard
Distribution systems are basically insecure – failure of a major component always leads to customer interruptions. So, what can be done? Reliable distribution systems minimize this impact by allowing faults… Read more
Apr 08, 2019 | Edvard
This technical article briefly describes seven very important tests you should perform during commissioning of a dry-type transformer. Usually tests are performed in the factory where transformers are produced. The… Read more
Apr 03, 2019 | Edvard
Due to the critical nature of the care being provided at healthcare facilities and their increasing dependence on electrical equipment for preservation of life, they have special requirements for the… Read more
Apr 01, 2019 | Edvard