Electrical Machines
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Batteries Wiring Connections and Diagrams
Batteries Wiring Connections and Diagrams Series, Parallel and Series-Parallel Connection of Batteries How much Watts Solar Panel We need for our Home Electrical appliances? How To Wire Two 24V Solar…
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Solar Panel Wiring Diagram and Installation Tutorials
Photovoltaic Solar Panel, Module String & Arrays Wiring & Installation Diagrams Solar Panel Wiring and Installation Diagrams Different Types of Solar Panel and Which one is the best PV Panel?…
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Three-Speed, One-Directions, 3-Phase Motor (Multispeed) – Power & Control
How to Control a 3-Phase Motor for 3-Speed and 1-Direction using Dahlander Connection? In applications where multi-speed control and one-direction rotation are needed, a specialized configuration utilizing both Dahlander connection…
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Why is a Motor Rated in kW instead of kVA?
Why are Electric Motors Rated in kW or Horsepower (hp) and Not in kVA? We already know that transformer ratings may be expressed in kVA instead of kW. The same…
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Why is a Battery Rated in Ah (Ampere hour), Not in VA?
Why are Batteries and Cells Rating in Ah (Ampere hour) and not in VA or Watts? A battery stores charge in the form of chemical energy and then converts it…
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Battery Capacity Calculator
Battery Capacity in milli-Amp-Hour (mAH) Calculator Formula and Equations for Battery Capacity Calculator Battery Capacity in mAh = (Battery life in hours x Load Current in Amp) / 0.7 Battery…
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Battery Life Calculator
Formula and Equations for Battery Life Calculator Battery life = (Battery Capacity/ Load Current) × 0.7 Battery Life = (Ah rating of Battery / Amp) x Run Time % Where;…
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The Dot Convention and Dot Notation in a Transformer Phasing
Transformer Phasing: The Dot Convention and Dot Notation for Transformer Polarity The Dot Conversion (also known as the Dot Notation) is a polarity marking in a Transformer Phasing which is…
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Efficiency of Transformer – All Day Efficiency & Maximum Efficiency
Transformer’s Efficiency: All Day Efficiency & Condition for Maximum Efficiency Efficiency of Transformer Similar to other electrical machines, (e.g. motors, alternator/generators etc.) the transformer’s efficiency on specific load and power…
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How to Connect a Portable Generator to the Home Supply – 4 Methods
How to Wire a 1-P & 3-P Portable Generator to the Home Supply using Changeover & Without Changeover or Transfer Switch (ATS & MTS) for 230V/400V & 120V/240V We all…
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