Knee Point Voltage of Current Transformers: Knee point voltage parameter is very important for Protection current transformers especially for Class-PS that is Special purpose current transformers. First of all, we… 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 »
These three terms Torque angle, Power angle and Load angle are associated with Synchronous machines that are synchronous generator and synchronous motor. They named as Synchronous machines as they revolve… Read more »
Nowadays Ring Main units are widely used in Metro cities and smart cities for providing reliable supply to the consumers. It is essential for Electrical Engineers to know the working… 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 Numerical Under voltage [27] /Over voltage [59] protection relay. These relays measure either phase to phase (Ph-Ph) or phase… Read more »
Core Balance Current Transformer-CBCT: Core-Balance Current Transformer CBCT also called as Zero Sequence CT. In this type of CT a single ring or rectangular shaped core of magnetic material, encircles… Read more »
Potential or Voltage Transformer: The purpose of the Potential Transformer is to provide an isolated secondary voltage that is in-phase and exact proportionate representation of primary voltage. Potential Transformers are… Read more »
Electrical Interview Questions-Series-4 In this series of Interview questions we will learn about the major differences in Electrical Engineering. Major Differences in Electrical Engineering: 1. What are the major differences… 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 »