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
Power System
What is a FUSE and How it Works?
A fuse protects an electrical circuit or device from excessive current when a metal element inside it melts to create an … Continue Reading
Insulating Materials for Power Cables
We have already discussed the construction of underground cables in the previous article. In this article, we will discuss the … 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
IEC 61850 – Features and Advantages
IEC 61850 is a standard for the design of electrical substation automation. It has been defined in cooperation with manufacturers … 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
Solid State Relays (Static Relays)
What is a Static Relay? There are two basic classifications of relays – Electromechanical Relays and Solid State Relays (Static … Continue Reading
Zones of Protection in Power Systems
Think of a protective shield around each part of a power system. These protective shields are called “Zones of Protection,” … Continue Reading
All Day Efficiency of Transformer
Definition The ratio of output in kWh to the input in kWh of a transformer over a 24-hour period is … Continue Reading