LT & HT Motors
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Motors
Part 5 – Sizing Motor Branch Circuit Conductors and Cables
How to Determine the Correct Wire Size for Motor Branch Circuit? Sizing Motor Branch Circuit Conductors Sizing the conductors for motor branch circuit is selected at 125% of the motor…
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Motors
Part 4 – Calculating Locked Rotor Current (LRC) for Motors
How to Determine the Value of Locked-Rotor Current (LRC) for Induction Motors? What is Locked-Rotor Current (LRC)? Locked-rotor current (LRC) is the maximum starting current drawn by an electric motor…
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Motors
Part 3 – Understanding NEMA Motor Nameplate Data and Marking
How to Read NEMA Motor Nameplates Data Printed on It for Motor Circuits? What is NEMA? NEMA (National Electrical Manufacturers Association) is a U.S.-based trade association that develops and publishes…
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Motors
Part 2 – NEC Requirements for Motor Circuits
General Requirements for the Design, Installation, and Protection of Motors, Motor Circuits, Controllers, and Disconnects – 2023 NEC Article 430 As discussed in part 1, motor circuits differ significantly from…
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Motors
Part 1 – Motor Load Circuits: NEC Terms and Terminologies
NEC Terms and Basic Terminologies Used in Motor Load Circuits Before designing an effective motor circuit that operates as expected based on analysis and calculations, it is important to understand…
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Motors
Cable Size Calculation for LT & HT Motors
How to calculate the Cable size for LT & HT Motors? Selecting the right cable size for the motor is an important parameter for the Industry whether it’s during Installation…
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