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This technical article explains six most common bus configurations used for distribution, transmission, or switching substations at voltages up to 345 kV. Presented single line diagrams and layouts are generalized… Read more
Mar 18, 2019 | Edvard
Pilot schemes simultaneously measure and monitor system parameters at all terminals of a transmission line, local and remote, and then respond according to their predetermined functions. These schemes require the… Read more
Mar 13, 2019 | Edvard
Nowadays, the control house is one of the main parts in every modern HV switchyard and substation. Why? Simply, because substations have grown in complexity and equipment such as circuit… Read more
Mar 11, 2019 | Edvard
Primary distribution systems consist of feeders that deliver power from distribution substations to distribution transformers. A feeder usually begins with a feeder breaker at the distribution substation. Many feeders leave… Read more
Mar 06, 2019 | Edvard
One may wonder why are everybody talking more and more about automation in power distribution. Aren’t we already automated? Well, we are not. It can always be better, faster, with…...
Feb 28, 2019 | Edvard
Recognizing the type of transmission & distribution pylons and their equipment is kind of hard if you don’t know where to look for. There are many variations that look similar… Read more
Feb 20, 2019 | Edvard
A three-phase service can be supplied by one three-phase transformer unit or by interconnecting three single-phase transformer units. One three-phase unit is smaller than an equivalent size bank consisting of…...
Feb 08, 2019 | Edvard
Short-term exposures to electric fields produced by AC transmission lines and stations can be pretty serious and may be classified according to the type of effect causing a sensation in… Read more
Jan 30, 2019 | Edvard
A transformer-feeder include a transformer directly connected to a transmission line circuit without the intermediation of a HV switchgear. The saving in HV switchgear so achieved is unfortunately lowered by… Read more
Jan 28, 2019 | Edvard
Series capacitors are connected in series in the circuit and therefore carry the full transmission line current. The series capacitor is actually a negative reactance in series with a transmission… Read more
Jan 23, 2019 | Edvard
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