How Ground Fault Interrupter (GFI) is used as a Safety Device

4 years ago

The function of a ground fault interrupter (GFI) is to disconnect the power if a current leakage to ground is…

Features of Stepper Motors & How they are applied in Industrial Control

4 years ago

A stepper motor is a permanent magnet or variable reluctance DC motor that has the following characteristics: It is able…

Single-phase and Three-phase Power Systems

4 years ago

Single-phase Power System To help us understand single-phase power system, consider the sine wave shown in figure 1(a) below of…

Types of Resistors

4 years ago

Resistors perform two basic functions in a circuit: they limit current flow and set voltage levels within a circuit. We…

How Servo Motors are used in Process Control

4 years ago

Servo motors are continuous motion mechanisms that use feedback signals to provide position and velocity control in a closed loop…

How to Tune the PID Controller

4 years ago

Before we discuss how to tune the PID controller, let’s look at some basic facts about PID Controller. Basic Facts…

Methods of Protecting Instruments from Explosive Atmospheres

4 years ago

The protection method used in a specific hazardous location depends on the application, the technology available and the specific explosive…

Hazardous Locations Classifications

4 years ago

A hazardous location is defined as a location where fire or explosion hazards exist due to the presence of flammable…

Functional Safety in Instrumentation Systems (SIS, SIF & SIL)

4 years ago

Functional safety is the risk reduction provided by the functions implemented to ensure the safe operations of the process. The…

Alternating Currents and Voltages

4 years ago

Alternating current generator Let’s consider a signal turn coil rotating freely at a constant angular velocity symmetrically between the poles…