Application of various relays used in the power system network depends upon various factors like the amount of fault current, protection methods, etc. We know that there are different types… Read more »
In this post operation of Directional current relay along with its settings explained. The detailed explanation about Directional relay settings with Characteristic angle, Maximum Torque angle and Polarisation voltages are… Read more »
The principle of operation of line differential protection is same as transformer differential protection. The only difference is transformer differential protection uses only one differential relay whereas line differential protection… Read more »
In this post, we can learn the working and configuration of the Numerical Under voltage [27] /Over voltage [59] protection relay. These relays measure either phase-to-phase (Ph-Ph) or phase-to-neutral (Ph-N)… Read more »
Differential Protective Relay is a protective relay that functions on a percentage or phase angle or other quantitative difference of two currents. Differential relaying provides selectivity by providing a zone… Read more »
Motor protection relays are used to provide various protections for the motors. These differ from the over current relays in terms of protections they offer. To understand the working of… Read more »