myElectrical Home

Time 2020-09-23 23:05:17

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International Electrotechnical Commission (IEC) National Electrical Code/Canadian Electrical Code (NEC/CEC) The different nature of the two systems make a direct comparison almost impossible. If you do need to work with......Read More.. By Steven McFadyen on Friday, March 9, 2012 Maxwell's Equations - Gauss's Electric Field Law Gauss's Electrical law defines the relation between charge ("Positive" & "Negative") and electric field.  The law was initially formulated by Carl Friedrich Gauss in 1835. In Gauss's law, the electric field is the electrostatic field.  The law shows how the electrostatic field behaves and varies depending on the charge......Read More.. By Steven McFadyen on Wednesday, September 4, 2013 Introduction to Current Transformers Current transformers (CTs) are used to convert high level currents to a smaller more reasonable level for use as inputs to protection relays and metering equipment.  Within electrical systems, current transformers are essential to ensure the correct functioning and control of equipment and for providing operational data......Read More.. By Steven McFadyen on Friday, February 8, 2013 Notes is a collaborative collection of electrical engineering information and educational material. Why not consider adding your knowledge and help make a better Notes for everyone. Have something interesting to share or some hidden knowledge why not add a post.Sharing your thoughts and ideas is a great way topass on knowledge.Who knows you may even become famous along the way. Learn More Questions Have a question. Care to help by using your expertise to answer. Contribute to our questions and build up your reputation. It's quick and easy to ask or answer questions. Why not give it a try. Learn More Understanding electric motor insulation & temperature Anyone specifying or using electric motors should have a basic understanding how the insulation is related to temperature. Three classes of insulation... How D.C. to A.C. Inverters Work Traditionally generation of electricity has involved rotating machines to produce alternating sinusoidal voltage and current (a.c. systems). With the development... Multimeter Multimeters are undoubtedly the most common item of electrical test equipment in use.  Often it is the first piece of equipment people will turn to when... Inductance When current flows within a wire, a magnetic field is created. The potion of this magnetic field perpendicular to the wire is called the magnetic flux... Understanding Circuit Breaker Markings IEC 60947 is the circuit breaker standard and covers the marking of breakers in detail. Any manufacturer following this standard should comply with the... Cost Performance and Time Often us engineers get so bogged down in equations, using software, producing drawings and writing specifications that this becomes the sole focus.   ... Cable Sheath and Armour Loss When sizing cables, the heat generated  by losses within any sheath or armour need to be evaluated. When significant, it becomes a factor to be considered... UPS - Uninterruptible Power Supply A UPS is an uninterruptible power supply.  It is a device which maintains a continuous supply of electrical power, even in the event of failure of the... Periodic Electrical Installation Inspection – How Often? How often installations are inspected is up to the owner of the installation, provided such durations do not exceed any regulatory maximums in force. ... Useful Motor Technical Information Sometimes it’s useful to be able to quickly lookup a piece of technical information.  This note is a collection of information related to motors, and in... myElectrical is an educational resource covering electrical engineering. The site provides electricalnotes, a question/answer section and calculation tools. If you have an something to share,specialist knowledge or want to ask a question, pleasecontribute. This will benefit everyone who visits. Steven McFadyensite owner

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