John Mulindi

AC to AC Power Converters with Intermediate DC Link: Types, Features & Applications

This category of AC drives that is often referred to as “Variable Frequency Inverters” is one of the most extensively…

5 months ago

Instrumentation Systems Installation: Precautions to Take

Analog systems are normally based on low voltages and as a result, they are vulnerable to electrical noise. In most…

5 months ago

Vacuum Circuit Breakers: Features, Operation & Applications

In vacuum circuit breakers, vacuum typically at pressures ranging from 10-9 to 10-6 bar is used as the quenching medium.…

5 months ago

DC to DC Power Converters: Function, Types, Operation & Applications

DC to DC power converters also referred to as choppers provide the means to change one DC voltage to another.…

5 months ago

Basic Facts about 4-20 mA current loop in Process Instrumentation

The 4-20 mA current loop, like the one shown in the diagram below is a typical way of transmitting sensor…

5 months ago

What are Supercapacitors?

Supercapacitors (double-layer or ultracapacitors) are devices that store extremely large amounts of charge (from 0.022 F to 55 F) much…

6 months ago

Digital Voltmeters: Basic Features, Operation & Applications

The digital voltmeter (DVM) displays measurement of ac or dc voltages as discrete numbers instead of a pointer deflection on…

6 months ago

Equipment Grounding vs. System Grounding

Grounding or earthing an electrical system is the process of connecting all metalwork/frame of electrical equipment i.e. the non-current carrying…

6 months ago

Sweep Frequency Generator: Function, Features & Applications

Function & Features of a Sweep Frequency Generator A special type of signal generator which generates a sinusoidal output whose…

6 months ago

Switchgear Terminology & IEC Standards

Switchgear generally refers to the switching devices and their combinations, with the related control, measuring, protective and regulating equipment. The…

6 months ago