Differential busbar protection is the most common and reliable scheme for the bus bar protection. Earlier there was no other option to use only conventional over current relays for busbar protection. But it is desirable that fault in any feeder or transformer connected to the busbar system should not disturb overall busbar system. Due to… Read More »
Kirchhoff’s Voltage Law states that net voltage gain and net voltage drops along a closed loop are equal. Kirchhoff’s Current Law states that at any point in the circuit the total current enters, is exactly equal to the total current leaves the point. There are some simple relationships between currents and voltages of different branches of an… Read More »
LED is the acronym for Light emitted Diode, when a suitable amount of current is made to pass through the LED, it activates the LED to release the energy in the form of light. From the days of Adam to the days of atom, one thing that has aided human beings to work is a… Read More »
You can find below a comprehensive switchgear testing and commissioning procedure. If you need to learn and understand the switchgear testing and commissioning procedure then this article is enough. But if you want to submit to client/consultant the method statement for switchgear testing and commissioning then you can download full document with ITP, checklists and… Read More »
In order to understand the usage of different types of capacitors in transmission lines we must first look in different way first the effect of power factor on the power system. Because the subject is related to the power factor correction. The power factor formula of an AC electric power system clearly indicates that this… Read More »
Both short circuit and open circuit tests are conducted to measure the core and winding losses of transformers. As we know that there are mainly two major parts of transformers i.e. core and winding, which are made of two type of materials, which are iron and copper. The core of a transformer is made of… Read More »