# Archive: Category «Electrical Lectures»

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# What is grounding and why do we ground the system and equipment?

The term grounding is commonly used in the electrical industry to mean both “equipment grounding” and “system grounding”. Equipment grounding means the connection of earth ground to non-current carrying conductive… Read more

Sep 14, 2016 | Edvard

# Answer 20 questions correctly and prove you are good electrician

It’s not easy to be a good electrician, that’s for sure. Things you studied hard (or still studying) are gradually being forgotten, especially electrical formulas. Well, these 20 questions tend… Read more

Sep 02, 2016 | Edvard

# 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…. Read more

Aug 15, 2016 | Edvard

# 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 | Edvard

# The essentials of AC power transformers for students and beginners

AC power transformers are one of the keys to allowing widespread distribution of electric power as we see it today. Transformers efficiently convert electricity to higher voltage for long distance… Read more

Jul 15, 2016 | Edvard

# The basics of power in alternating current circuits (you MUST NEVER forget)

In a DC circuit, the power is equal to the voltage times the current, or P=V×I. This is also true in an AC circuit when the alternating current and voltage… Read more

Jul 08, 2016 | Edvard

# 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 | Edvard

# 12 Basic Motor Types Used For Industrial Electric Drives

Almost all modern industrial and commercial undertakings employ electric drive in preference to mechanical drive because it possesses the following advantages : It is simple in construction and has less… Read more

Jun 21, 2016 | Edvard

# 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 | Edvard

# 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 | Edvard

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