All electrical installations and equipment comply with insulation resistance specifications so they can operate safely. Whether it involves the connection cables, the sectioning and protection equipment, or the motors and generators, …
Continue ReadingDifference between Dielectric Testing & Insulation Resistance Measurement
As per IEC 60947, switchgears with rated voltages up to 1000 V ac and 1500 V dc are termed as low voltage switchgear. The term ‘switchgear’ is a generic term …
An analog instrument is one in which the output or display is a continuous function of time and bears a constant relation to its input. The analog instruments find extensive …
In this article, you will study what are electric potential, the potential difference (PD) and electromotive force (emf) and the difference between them. Just as a body raised above the …
Continue ReadingElectric Potential, Potential Difference and EMF
What is a Static Relay? There are two basic classifications of relays – Electromechanical Relays and Solid State Relays (Static relay). One main difference between them is electromechanical relays have …
What is Load Forecasting? Electrical energy cannot currently be stored in large amounts. It has to be generated whenever there is a demand for it. It is, therefore, imperative for …
Continue ReadingLoad Forecasting – Purpose, Classification and Procedure
The animated video below explains the working of a moving coil instrument.
The gas turbine power plant obtains its power by utilizing the energy of burnt gases and air, which is at high temperature and pressure by expanding through several rings of …
Swinburne’s test is the simplest indirect method of testing dc machines. In this method, the dc machine (generator or motor) is run as a motor at no-load and losses of …
Continue ReadingSwinburne’s Test of DC Machine (Generator and Motor)