Energy and Power
Grounding of mine power distribution systems
The application of electricity to the mining industry is a distinctive area of both mining engineering and electrical engineering. The difficult environment, the dynamic power loads, the cyclic and mobile operation and stringent safety requirements that characterize mining, all place… Read more
Nov 07, 2022 | By Edvard Csanyi
Low Voltage
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A case study of fault level calculations for a MV/LV network using direct method
This technical article represents the case study of fault level calculations for an MV/LV network using the direct method. There are many advantages of the direct approach, and the main of them is that it directly uses the system single…...
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Jul 19, 2020 | By Sivakumar K
Energy and Power
Twelve doubts in ground testing that make electrical engineers pretty confused
Ground testing is often misunderstood by electrical engineers and technicians who do not perform such testing often and regularly. It seems that there are a lot of questions and doubts on testing the ground. This technical article, based on Transcat’s… Read more
May 06, 2020 | By Edvard Csanyi
Energy and Power
Measurements and Calculations Of Earth Electrode Systems (BS 7430)
System earthing involves the provision of a connection to the general mass of earth. This connection should have a resistance not greater than that required to operate safety mechanisms to isolate the electricity supply from a fault situation. Second important… Read more
Feb 26, 2018 | By Edvard Csanyi
Energy and Power
Did you test your electrician’s skills recently? Take the quiz. It’s time!
It’s always a good idea to put the sparks into your memory and shed light on things you have learned years ago. Whether you are a rookie in a field of electrical engineering or a professional electrical engineer or electrician,… Read more
Jun 07, 2017 | By Edvard Csanyi
Industrial Automation
9 rules for correct cabling of the Modbus RS485 communication systems
The cabling of the industrial communication systems (Modbus RS485) is different in some ways from the cabling used for power cabling and the electrician may experience some difficulties if he is not an expert in Modbus communication networks. A Modbus RS485 connects a… Read more
Dec 07, 2016 | By Edvard Csanyi
Electric Motor
Practical tips for installation and using of thermistor motor protection
Thermistor is a small non-linear resistance sensors, which can be embedded within the insulation of a motor winding, to provide a close thermal association with the winding. It’s made from a metal oxide or semiconductor material. The relationship between resistance… Read more
Oct 14, 2016 | By Edvard Csanyi
Electrical Lectures
Basic measuring of resistance, voltage and current using digital multimeter
Digital multimeter has generally replaced the analog-type multimeter as the test device of choice for maintainers because they are easier to read, are often more compact and have greater accuracy. Digital multimeter performs all standard analog-meter measurement functions of AC and DC…. Read more
Aug 15, 2016 | By Edvard Csanyi
Energy and Power
First, identify ground faults and status of the neutral and then protection…
To identify ground faults in a network and therefore carry out effective protection, it is necessary to know in detail how the neutral is run. Identification of ground faults is made by means of voltage and/or homopolar current measurements and therefore… Read more
Aug 05, 2016 | By Edvard Csanyi
Electrical Lectures
How do you become a master electrician?
There are a number of differences between the Journeyman test and the Master electrician exam. Generally speaking, the test for the Master electrician’s exam has more questions, lasts longer and includes more advanced electrical fundamentals and formulas. I have already briefly… Read more
Jul 05, 2016 | By Edvard Csanyi
Electrical Lectures
What Is The Energy, But For Real?
Energy is best defined as “the capacity for doing work”. Electricity is but one of many forms of energy. Other familiar forms of or descriptions of energy are thermal or heat, light, mechanical, and so on. Energy is also described… Read more
Apr 08, 2016 | By Edvard Csanyi
Energy and Power
How electricians test continuity of protective conductors
For all protective conductors, including main and supplementary bonding conductors, electricians must perform continuity test using a low-reading ohmmeter. For main equipotential bonding, there is no single fixed value of resistance above which the conductor would be deemed unsuitable. Each… Read more
Feb 06, 2016 | By Edvard Csanyi
Electrical Lectures
Basic measuring devices explained through cute simple schemes
In this technical article, you should gain a basic understanding of the desirable properties of practical devices for the measurement of electrical parameters. The measurements most often of interest are those of current, voltage, power, and resistance. In analogy with… Read more
Oct 21, 2015 | By Edvard Csanyi
Energy and Power
4 Things Soil Resistivity Depends On
Though the ground itself being a very large body can act as an infinite sink for currents flowing into it and can be considered to be having very low resistance to current flow, the resistance of soil layers immediately adjacent to the… Read more
Oct 17, 2015 | By Edvard Csanyi
Energy and Power
Calculating the short circuit heating of busbars
Like all electrical circuits, busbars need to be protected against the effects of short-circuit currents. The open construction of busbars increases the risk of faults, e.g. by the ingress of foreign bodies into air gaps, and the risk of consequent… Read more
May 01, 2015 | By Edvard Csanyi
