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
Instrumentation
Basic Types of Switchgear Components
Before learning about different switchgear components, let us understand what is switchgear. The apparatus used for switching, controlling and protecting … Continue Reading
Swinburne’s Test of DC Machine (Generator and Motor)
Swinburne’s test is the simplest indirect method of testing dc machines. In this method, the dc machine (generator or motor) … Continue Reading
Parallel Operation of Single Phase Transformers
By parallel operation of single-phase transformers, we mean two or more transformers are connected to the same supply bus bars on … Continue Reading
Air Blast Circuit Breaker – Construction, Working and Types
Air blast circuit breaker employs a high-pressure air blast as an arc quenching medium. The construction and working of different … Continue Reading
Steam Power Stations – Arrangement and Working
Steam power stations convert the heat energy of coal combustion into electrical energy. A steam power station basically works on the … Continue Reading
Speed Control of DC Motor (Shunt, Series and Compound)
Speed control of dc motor is achieved using different methods. There are three types of dc motors. For each of … Continue Reading