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Technical Articles

Protection

Secondary Distribution Networks In Urban Areas

A high level of interconnection, either ring or mesh, to ensure a high degree of availability of supply to the consumer, characterises secondary distribution networks in urban areas. Domestic, industrial… Read more

Nov 04, 2015 | By Edvard

Secondary Distribution Networks In Urban Areas
Energy and Power

Protection of A.C. Electrified Railways

Many regional, urban and high-speed inter-urban rail networks worldwide are electrified, to provide the motive power for trains (Figure 1). The electrification system serves as the contact interface for current… Read more

Oct 30, 2015 | By Edvard

Protection of A.C. Electrified Railways
Energy and Power

Eight Most Common Schemes To Supply MV Switchboard

Medium voltage networks are made up of switchboards and the connections feeding them. Let’s take a look at the eight different supply modes of these medium voltage switchboards. We’ll start with… Read more

Oct 23, 2015 | By Edvard

8 Schemes To Supply MV Switchboard
Energy and Power

Phases and wires in distribution of AC power

AC power transmission is always at high voltage and mostly by 3-phase system. The use of single-phase system is limited to single-phase electric railways. Single-phase power transmission is used only… Read more

Oct 19, 2015 | By Edvard

Phases and wires in distribution of AC power
Energy and Power

4 Things Soil Resistivity Depends On

Though the ground itself being a very large body can act as an infinite sink for currents flowing into it and can be considered to be having very low resistance to current… Read more

Oct 17, 2015 | By Edvard

4 Things Soil Resistivity Depends On
High Voltage

7 Methods To Avoid Insulator Flashovers

Contamination caused insulator flashovers produce frequent outages in severely contaminated areas. Lines closer to the ocean are in more danger of becoming contaminated. Several countermeasures have been proposed to improve… Read more

Oct 14, 2015 | By Edvard

7 Methods To Avoid Insulator Flashovers
Energy and Power

Testing Challenges in Large Ground Systems

Large ground systems, such as those found in substations and power stations, are an important part of the protection of the electricity supply network. They ensure that fault current will… Read more

Oct 12, 2015 | By Edvard

Testing Challenges in Large Ground Systems


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