Industrial Automation
3 Conditions That Can Damage Your PLC
In certain applications, the operating environment may have extreme conditions that require special attention or otherwise can seriously damage PLCs. These adverse conditions include excessive noise and heat and nuisance line fluctuations. This article describes these conditions and provide measures… Read more
Aug 31, 2015 | By Edvard Csanyi
Electric Motor
19 Essential Information You Can Find On Motor Nameplate
Motor nameplate is normally located on all produced electric motors. Understanding motor nameplate details can be hard sometimes, but is essential. In most countries it is a requirement for manufacturers to display all information on the motor’s nameplate, but often… Read more
Aug 29, 2015 | By Edvard Csanyi
Industrial Automation
Few Good Tips For Estimating and Optimizing Pumping Energy Costs
To help estimate pumping energy costs: To compare different system and pumping equipment proposals and make an intelligent choice, three facts will need to be established: Will the process require varying flow rate, and, if so, must it be continuously variable… Read more
Aug 28, 2015 | By Edvard Csanyi
Cables
Electrical Design Project Of a Small Bakery
A small bakery with just a counter and storage areas is simple to design. The electrical design follows the layout for a house, but care must be taken on loading factors if direct-acting electric heaters are switched on all day. These days,… Read more
Aug 26, 2015 | By Edvard Csanyi
Electrical Lectures
PLC Latch (Flip-Flop) Logic Function – Like a Sticky Switch!
More complex systems cannot be controlled with combinatorial logic alone. The main reason for this is that we cannot (or choose not to) add sensors to detect all conditions. In these cases we can use events to estimate the condition… Read more
Aug 24, 2015 | By Edvard Csanyi
Energy and Power
Things About MCBs That Every Low Voltage Electrician Should Know
Miniature circuit breaker – MCB is a thermo-magnetic device, meaning that it has two methods of circuit interruption. A thermal mechanism, usually a bi-metallic strip, provides protection against moderate overcurrent. The heating action of the current causes the bi-metallic strip… Read more
Aug 22, 2015 | By Edvard Csanyi
Industrial Automation
Installing Sensors Incorrectly As a Mistake #2 In Instrumentation
Generally speaking, there are four ‘Poors’ that can lead to incorrectly installing instrumentation sensors: Poor placement Poor control Poor protection Poor grounding Each of above sensor ‘poors’ are described below, and by the way… have you read what is the mistake No.1… Read more
Aug 21, 2015 | By Edvard Csanyi
Electrical Lectures
Kirchhoff’s Laws For Electrical Engineers – Beginners
Two extremely important principles in electric circuits were codified by Gustav Robert Kirchhoff in the year 1847, known as Kirchhoff’s Laws. His two laws refer to Voltages and Currents in electric circuits, respectively. Kirchhoff’s Voltage Law states that the algebraic… Read more
Aug 19, 2015 | By Edvard Csanyi
Industrial Automation
Selecting Wrong Sensor As a Mistake #1 In Instrumentation
Despite ongoing advancements in measurement technology, instrumenting a process for feedback control remains a technical challenge. Today’s sensors are certainly more sophisticated than ever before, and fieldbus technology has simplified many installation issues considerably. Nonetheless, much can still go wrong… Read more
Aug 17, 2015 | By Edvard Csanyi
Industrial Automation
4 Steps To Follow During Commissioning of a PLC System
Yes, PLC programs are never final, it is always possible to make corrections and subsequent adaptations to new system according the customer requirements. Even during commissioning, program changes are often necessary. The commissioning of a system can be divided into… Read more
Aug 15, 2015 | By Edvard Csanyi
Electrical Lectures
Few advice for improving integrity of protective conductor
Most modern electronic equipment uses switched mode power supplies (SMPS) which draw pulses of current from the mains supply rather than a continuous sinusoidal current. The fast rise time edges of the current waveform contain high frequencies that can cause serious radio frequency… Read more
Aug 14, 2015 | By Edvard Csanyi
Electric Motor
Comparison of Soft Starting and Frequency Converter Motor Starting
A soft starter is, as you would expect, a device which ensures a soft starting of a motor. A softstarter has different characteristics to the other starting methods. It has thyristors in the main circuit, and the motor voltage is… Read more
Aug 12, 2015 | By Edvard Csanyi
Energy and Power
10 Common Causes Of Arc-Flash and Other Electrical Accidents
The most common cause of Arc Flash and other electrical accidents is carelessness. No matter how well a person may be trained, distractions, weariness, pressure to restore power, or overconfidence can cause an electrical worker to bypass safety procedures, work… Read more
Aug 10, 2015 | By Edvard Csanyi
Energy and Power
What parallel redundancy does to the power distribution system?
Redundancy is a useful method of increasing reliability and optimising the balance between operation effectiveness and expenditure. In the context of reliability, redundancy signifies that a system will continue to function satisfactorily in spite of the failure of some of… Read more
Aug 07, 2015 | By Edvard Csanyi
Metering
Resistance measurement of non-conductive walls and floors
There are certain situations where it is desirable for a room to be totally isolated from the Protective Earth conductor (e.g. for conducting special tests in a laboratory etc.). These rooms are regarded as an electrically safe area and the walls… Read more
Aug 05, 2015 | By Edvard Csanyi
