Over current/Earth fault Relays [50/51]:
Over current/Earth fault relays are the basic protection relays. Used for protection of transformers and feeders from over current and earth faults. When excessive current flows in a circuit, it… Read more »
Working of Numerical Relays:
Numerical Relays working explained in this post with the help of a Numerical relay used in industrial applications. Brief Introduction about Relay: RELAY: A Relay is a protection device that… Read more »
Auto Changeover Scheme:
Auto Changeover Scheme Introduction: In this post the Auto Changeover Scheme for two incomers and one Bus-coupler system is explained. In Industries for distribution of electrical power with reliable supply… Read more »
High Impedance Restricted Earth Fault Protection: [64H]
In this post, we are going to see, how the High Impedance Restricted Earth fault protection scheme works by using Metrosil and Stabilizing Resistors. Why REF protection is required while… Read more »
Single Line Diagram of Power Plant
In this post the Single Line Diagram of the typical Power plant is explained, it covers the Bus Transfer methods also. Single Line Diagram-SLD gives information about how the Electrical… Read more »
Vector Groups of Transformer:
VECTOR or PHASOR GROUPS: Vector or Phasor groups of transformers are used to denote different connection methods for polyphase transformers. This knowledge is required for connecting the poly-phase transformers in… Read more »