Featured

12Jan 20206 Dec 2020

Basic Questions to Ask About Control Panels

By Jerry Smith Electrical control panels are designed and used to control mechanical equipment. Each one is designed for a…

24Jul 201928 Feb 2021

Introduction to Relays

A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple…

11May 201914 Feb 2021

Line and Load Reactors Basics

Reactors can protect both motors and variable frequency drives (VFDs) from harmful current and voltage spikes. Reactors also help reduce…

How Do I Choose The Right Sensor?

20 Jun 202120 Jun 2021

All applications have certain specific needs, but, in general, the following steps will help you choose the correct sensor for your application: Step 1: What is the sensing distance required?…

Proximity Sensors Frequently Asked Questions

4 Apr 20215 Jun 2021

How do inductive proximity switches work? An inductive proximity sensor can detect metal targets approaching the sensor, without physical contact with the target. Inductive proximity sensors are roughly classified into…

Selecting the Appropriate Materials for Industrial Enclosures

21 Feb 20215 Jun 2021

Selection Criteria Environmental Considerations In order to select the appropriate enclosure for an application, the environment to which the enclosure will be exposed must be considered. Most installation atmospheres will…

Fuses

Consolidating Inventory Reduces Costs and Upgrades Safety – The Fuse Protection Review

31 Jan 20215 Jun 2021

Downsizing. Layoffs. Budget cuts. Belt-tightening. These are all-too-familiar phenomena. The persistently sluggish economy is driving industry to protect profitability by trimming costs while maintaining target productivity and product delivery levels.…

Fuses

Motor Overcurrent Protection

31 Jan 20215 Jun 2021

Overcurrent protection of motors is a threefold problem involving normal starting currents, stalled rotors, and running overloads. Many motors draw starting currents several times their full-load ratings, and because of…

Why it Often Pays to Choose Custom Rather than Standard Sensors

29 Dec 20205 Jun 2021

Sam Drury, Sales & Marketing Director at Impress Sensors & Systems Ltd, explains why some engineers prefer custom pressure sensors over standard, off-the-shelf versions. A standard, off-the-shelf pressure sensor refers…

How Silicon Pressure Sensors Work

The historical problems associated with silicon oil-filled pressure sensors are well documented. However, recent advances in sensor design has led to improved versions that overcome many of these disadvantages, says…

Motors

Fault Finding – Three Phase Induction Motors

6 Dec 202027 Feb 2021

All electric motors have their predetermined life span, typically ranging from 30,000 to 40,000 hours. However, this is dependent on proper maintenance - without which they are likely to break…

Fault Finding – Single Phase Motors & Standard Controllers

6 Dec 202011 Apr 2021

ProblemPossible Cause'ACO" (and 'MCO') Does not Close when Start is Called for.Fault with supply. Power supply absent at terminals L1, L2 and N. External control circuit is blocking operation. Thermal…

Motors

Choice of Correct Type of Motor

30 Nov 202030 Nov 2020

We will now consider the various types of motors that are available and relative merits of each. THE SQUIRREL CAGE ROTOR MOTOR. This is the most common of motors that…