CO-ORDINATION PROCEDURE Correct overcurrent relay application requires knowledge of the fault current that can flow in each part of the network. Since large-scale tests are normally impracticable, system analysis must…
Control Control, as applied to control circuits, is a broad term that means anything from a simple toggle switch to a complex system of components which may include relays, contactors,…
Unit of a capacitor bank is normally called capacitor unit. The capacitor units are manufactured as single phase unit. These single phase units are connected in star or delta to…
What is Mobile Substation? Sometimes it is required to supply power to a particular place in fully temporary basis. Such as at civil contraction or other construction places where huge…
PID control stands for proportional plus derivative plus integral control. PID control is a feedback mechanism which is used in control system. This type of control is also termed as…
Due to the rapid advances in technology, all industrial processing systems, factories, machinery, test facilities, etc. turned from mechanization to automation. A mechanization system needs human intervention to operate the…
What do they do? Capacitors are components that can store electrical pressure (Voltage) for long periods of time. When a capacitor has a difference in voltage (Electrical Pressure) between its…
Abbreviations are frequently used in control circuits. The following list identifies a few commonly used abbreviations: - MTR Motor MN Manual NEG Negative NEUT Neutral NC Normally Closed NO Normally…
Current Electricity is the flow of free electrons in a conductor from one atom to the next atom in the same general direction. This flow of electrons is referred to…
Before I introduce you the theory of control system it is very essential to know the various types of control systems. Now there are various types of systems, we are…