Which type of residual current device (RCD) you should use for protection?
It is not quite clear when and by whom the first residual current device (RCD) was developed, but it certainly appeared on the market in the 1950s and was initially… Read more
Jul 28, 2016 | By Edvard Csanyi
How standby generators work and how to dimension them?
Standby generators are used in order to provide consumers in the system entitled to standby service in the event of breakdown or shutdown of the normal power supply. They consist… Read more
Jul 26, 2016 | By Edvard Csanyi
Challenge your electrician skills with these 15 questions
Whether you are professional or a novice in a field of electrical engineering, it’s always a good idea to challenge your electrician skills from time to time. This is your… Read more
Jul 25, 2016 | By Edvard Csanyi
Earthing in DC distribution systems similar to the AC systems
This technical article shows earthing of a specific pole of a two-wire DC distribution systems. The decision whether to earth the positive or the negative pole shall be based upon… Read more
Jul 20, 2016 | By Edvard Csanyi
Electricity and water do not form a happy partnership, do they?
Electricity and water do not form a happy partnership and so it is often necessary to “dry out” insulation. This may be done to remove surface moisture or perhaps to… Read more
Jul 13, 2016 | By Edvard Csanyi
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… Read more
Jul 05, 2016 | By Edvard Csanyi
Why is Good Grounding Important And What Can You Do About It?
The transient nature of lightning with its associated fast rise times and large magnitude currents mean that special consideration needs to be given to the good grounding, for lightning protection… Read more
Jul 04, 2016 | By Edvard Csanyi
Power Distribution Network Explained To Electrical Engineers (Beginners)
In the UK, voltages of 132 kV, 110 kV, 66 kV, 33 kV and 11 kV are typically used to provide primary distribution, with a 380–415 V three-phase and neutral… Read more
Jun 28, 2016 | By Edvard Csanyi
4 Main Types Of Distribution Feeder Systems To Recognize
Let’s take a look at the four most common distribution feeder systems applied nowadays. There are few other variations, but we will stick to the basic ones. It’s very important to… Read more
Jun 23, 2016 | By Edvard Csanyi
31 Common Household Circuit Wirings You Can Use For Your Home
The circuit wirings in this article show the most common wiring variations for typical electrical devices. Most new wiring you install will match one or more of the wirings shown. Find… Read more
Jun 14, 2016 | By Edvard Csanyi
31 Common Household Circuit Wirings You Can Use For Your Home (2)
1st part | 2nd part | 3rd part The list of the next ten household circuit wirings: Double receptacle circuit with shared neutral wire (receptacles alternate circuits) Double receptacle small-appliance… Read more
Jun 14, 2016 | By Edvard Csanyi
31 Common Household Circuit Wirings You Can Use For Your Home (3)
1st part | 2nd part | 3rd part The list of the last eleven household circuit wirings: Three-way switches & light fixture (fixture at start of cable run) Three-way switches… Read more
Jun 14, 2016 | By Edvard Csanyi
6 Adjustable Tripping Settings of a Circuit Breaker You MUST Understand
There are (at least) six basic adjustable tripping settings (functions) you really should understand in order to fully understand how circuit breaker actually works. All these adjustable functions actually shape… Read more
Jun 10, 2016 | By Edvard Csanyi
Few Tips For Correct Protection Against Indirect Contact In TT System
An earth fault in a TT system originates the circuit represented in Figure 1. The fault current flows through the secondary winding of the transformer, the line conductor, the fault… Read more
Jun 03, 2016 | By Edvard Csanyi
Power distribution configurations with three 3-phase hot power lines
Power leaves the substation on three, three-phase “hot” power lines that are strung adjacent to highways or along local roads to points of use. All three phases share a single… Read more
Jun 01, 2016 | By Edvard Csanyi