A latching relay is an electromagnetic switch that stays in either the “open” or “closed” position until it is moved to the opposite position by an external trigger. Unlike a regular relay, which has a spring-loaded mechanism that returns the switch to its original position when power is removed, a latching relay stays in the …
What is an amp (A)? An amp, or ampere, is the basic unit of electric current. It is defined as the flow of electrons through a conductor at the rate of one coulomb per second. In terms of SI units, an amp is equal to one coulomb per second, or amperes. The term “amp” can …
All performance information for a motor is based on the motor being supplied by the power at the potential difference and frequency stated on the nameplate. A motor rating consists of the power output, speed, potential difference, and current specified by the manufacturer. A typical motor nameplate is shown below. It includes the following information, …
Definition Geographically speaking earth is the planet habituated by mankind. What then can earthing mean? In layman’s language, is it connecting non-current carrying conductive parts of equipment or an installation to the earth using a conductor. It also refers to connecting the neutral conductor of an electrical system to the earth. Earthing is widely used …
You may have heard of the word ‘mega’ in the measurement of various engineering parameters. One of those parameters is resistance, when it is in the range of millions of ohms it is called megaohms is its simplest definition a megger is a mega-ohmmeter, that is an instrument used to measure high resistance values. As …
One of the broad categories in engineering disciplines is instrumentation. Electrical, mechanical, and civil engineering heavily depend on instruments to control and monitor operations. One of the key parameters in engineering is temperature. Many devices have been invented to measure temperatures and one of them is a Pyrometer. A device is used to measure temperature …
Outline A battery is an electrical device that stores chemical energy which can be converted to electrical energy. It is an energy storage device that produces electricity by connecting its terminals to an electrical gadget, appliance or machine. Two broad categories of batteries are; rechargeable and non-rechargeable types. It is key to note that a …
A relay is an electrical switch that controls a high voltage circuit using a low voltage source. Effectively. A relay electrically separates a low voltage circuit from a high voltage circuit. Most relays are actuated by sensors and hence commonly used in the control system. Buchholz relay is a special device that detects faults inside …
The motor is indisputably one of the primary machines in electromechanical engineering. It is a machine that converts electrical energy into mechanical energy. When you see a moving system that uses electricity, the power to move is provided by a motor. Depending on the type of electrical power, there are AC motors and DC motors. …
Potential Difference If electrons have greater potential energy at one place than at another, then a potential difference is said to exist between the two places. Potential difference is the difference in potential energy per unit of charge, between two points.In the metric system, potential energy is measured in joules. The charge is measured in …