Why Do We Use Transmission Switching in Electricity Supplies?
A transmission switching system is an essential component of the electricity supply network. It enables electricity transmission from one line … Continue Reading
Electrical Relays
How RCCB/ELCB Protects You from Death?
Earthing does not guarantee that humans will be safe when they come into contact with live conductors. Although relays may … Continue Reading
Classification or Types of Protective Relays
The IEEE defines protective relays as: “relays whose function is to detect defective lines or apparatus or other power system conditions … Continue Reading
What are Motor Control Centres?
The Motor Control Centre is used in general to describe combinations of enclosures, busbars, circuit breakers, power contactors, power fuses, … Continue Reading
Overcurrent Relays for Transmission Line Protection
The use of overcurrent relays is the simplest and cheapest type of line protection. Three types of overcurrent relays are … Continue Reading
Introduction to Gas Insulated Substations / Switchgears (GIS)
Gas-insulated substations (GIS) have been used in power systems over the last three decades because of their high reliability, easy … Continue Reading
Low Voltage Switchgear
Low voltage switchgear, according to IEC 60947, refers to switchgears with rated voltages up to 1000 V AC and 1500 … Continue Reading
Instantaneous, Inverse Time and Definite Time Lag Relays
In this post, we will explain Instantaneous, Inverse Time and Definite Time Lag Relays and their characteristics. An important characteristic of … Continue Reading
Substation Earthing System Design
We have already given an introduction to substation earthing system in an article published earlier. Today we are going to … Continue Reading
Basic Relays – Electromagnetic Attraction and Induction Relays
Most of the relays used in the power system operate by virtue of the current and/or voltage supplied by current … Continue Reading