Recent Posts
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Motors
Part 10 – Overcurrent Protection for Motor Control Circuits
How to Size Short Circuit and Overload Protective Devices for Motor Control Circuit Conductors? According to 430.75(A), motor control circuit…
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Motors
Part 9 – Sizing Motor Overload Protection and OCPDs
How to Size Overload Protection for 3-Phase Motors? NEC Article 430, Part III provides guidelines for sizing overload protection devices…
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Motors
Part 8 – Sizing Motor Feeder Protection and OCPD’s Devices
How to Determine the Size of Feeder Protection Supplying Several Motors? In the previous section, we discussed sizing feeder conductors…
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Motors
Part 7 – Sizing Motor Branch Circuit Protection and OCPDs
How to Select OCPDs and Right Size Breaker / Fuse for Motor Overcurrent Protection? Sizing Branch Circuit Protection for Motors…
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Batteries
How to Calculate the Right Size Battery? Battery Bank Size Calculator
Determine the Suitable Size of Battery Bank Capacity for Solar, Home & General Applications – Example & Calculator Direct usage…
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Motors
Part 6 – Sizing Motor Feeder Conductors and Cables
How to Determine the Correct Wire Size for Feeder Supplying Multiple Motors? In previous sections on motor circuit calculations, we…
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Electrical Wiring
How to Size a Branch Circuit Conductors with Protection?
Sizing of Branch Circuits and Conductors with Protection Supplying from OPCD to the Final Load Point Branch Circuit According to…
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Power System
Why are Capacitors Connected in Series in Power Lines?
Why are Capacitors Connected in Series with Power Transmission Lines? While capacitors are often associated with shunt applications for power…
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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…
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LED
Why Do LED Indicator Lights Glow Even When Switched OFF?
Why Does the Indicator Light in Some Electrical Appliances Not Turn Off Immediately After the Switch is Turned OFF? You…
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Power & Control
Must Know
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Solar Power
How Many Panels, Batteries, Charge Controller and Inverter Do I Need?
A Complete Guide About Solar Panel Installation. Step by Step Procedure with Calculation & Diagrams Below is a DIY (do…
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Transformer
How to Size a Single Phase and Three Phase Transformer in kVA? Calculator
How to Calculate the Rating of Single Phase & Three Phase Transformers in kVA We know that a transformer is always…
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Batteries
How to Calculate the Battery Charging Time & Battery Charging Current – Example
How to Calculate the Charging Time and Charging Current for Battery Charging? Easy Battery Charging Time and Battery Charging Current…
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Electrical Wiring
Automatic UPS / Inverter Connection Diagram to the Home Panel Board
Automatic UPS System Wiring Circuit Diagram (One Live Wire & Ordinary Wiring) Automatic UPS / Inverter Connections In case of…
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Electrical Energy
How To Calculate Your Electricity Bill. Electric Bill Calculator with Examples
Calculate Your Electricity Bill in 1 Minute with a Simple Calculation or by Using an Electric Energy Bill Calculator Calculating…
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Electrical Wiring
How to Find the Proper Size of Wire & Cable In Metric & Imperial Systems
How to Determine the Suitable Size of Wire and Cable or Electrical Wiring Installation? Examples in Imperial and Metric Systems…
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