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Pull the switch and enter the 2016! Engineers, Happy New Year!
What we did in 2015… When I think of this year 2015… well it was a pretty busy year in general. A lot of published technical articles and various released electrical guides, tons of your comments....
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2 approaches to analyse and solve series parallel networks
Series Parallel Networks A firm understanding of the basic principles associated with series and parallel circuits is a sufficient background to begin an investigation of any single-source DC network...
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5 good circuit schemes to avoid HV substation outage
Circuit schemes High voltage substations are points in the power system where power can be pooled from generating sources, distributed and transformed, and delivered to the load points. Substations are...
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Electrical Distribution Architecture In Water Treatment Plants
Water treatment plants For both drinking water and wastewater treatment, 4 different sizes of plants have been distinguished. The size of plants can be expressed in quantity of treated water per day,...
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8 tips to avoid ground loops when dealing with signal level circuits
Ground loops and signal noise General recommendation is to properly design and implement the facility’s grounding system to avoid unwanted involvement of ground loops with the operation of the...
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Guidelines To Inspection Of Molded Case Circuit Breakers (MCCB)
NEMA AB 4 and MCCB maintenance The need for inspection of molded case breakers (MCCB) will vary depending on operating conditions. Suggested inspection and testing is defined in ANSI/NEMA AB 4,...
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Underground substations – Out of sight, out of mind
Underground substations // Underground substations help to bring high voltage electricity directly into the city center. The stations are environmentally friendly, almost unnoticeable, and have none of...
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9 Reasons For Automation Of Manufacturing Processes
Manufacturing automation Automated manufacturing systems operate in the factory on the physical product. They perform operations such as processing, assembly, inspection, or material handling, in some...
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Identify these 4 things and lower facility’s electricity bill
Electricity bill and energy losses // The world is more energy conscious these days. But unlike you, most of the world doesn’t pay electricity bill that rivals the cost of a four bedroom home. You...
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Protection Schemes For Generators and Motors
Protection schemes // It is difficult to define precisely the protection schemes that should be adopted for an electricity distribution system, given the large number of valid alternatives for each...
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Setting the generator protective relay functions
Protective relay functions and data This technical article will cover the gathering of information needed to calculate protective relay settings, the setting calculations for the various protective...
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Wiring practices to provide future load growth in buildings
Electrical wiring practices in buildings Electrical wiring is often installed without consideration for how the use of the space may change over time, particularly in residential building. This article...
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When You Ground Ungrounded System With Grounding Transformer
Wye-Zigzag Grounding Transformer The common grounding assumes a wye-connected neutral to ground. As this is not always the case, and in some cases it is not a three-phase system that it is desired to...
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Measurement of residual currents on a distribution feeder
Residual currents (earth fault) The measurement of the earth fault or residual currents on a distribution system feeder can be done by the so-called summation connection, where the three current...
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5 conditions for perfect parallel operation of single phase transformers
Parallel operation of transformers // In perfect parallel operation of two or more transformers, current in each transformer would be directly proportional to the transformer capacity, and the...
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10 questions to test your electrician skills
Let’s test your electrician skills // These are not-so-easy, but also not-too-hard questions for you to try to answer and test your electrician skills. Whether you are a novice in a field of electrical...
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Harmonics. What are they? What do they do?
What are harmonics? The harmonics allow to represent any periodic waveform. In fact, according to Fourier’s theorem, any periodic function of a period T may be represented as a summation of: A sinusoid...
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Important points about grounding of electronic equipment
Safety grounding // Grounding electronic equipment for personal safety and clearing of faults is no different than that of any other equipment. Safe grounding requires fast opening of circuit breakers...
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Why I Prefer Busbar Trunking Systems More Than Cables
Planning concept for power supply // When a planning concept for power supply is developed, it is not only imperative to observe standards and regulations, it is also important to discuss and clarify...
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Where Do Electrical Faults Occur The Most?
Causes of electrical faults // A fault is not a natural occurrence. It is an unplanned event which occurs unexpectedly. Electrical faults in an electrical installation or piece of equipment may be...
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