Per-Unit Method Short Circuit Calculation
I. Introduction In a previous post, the Impedance Method of Short-Circuit Calculation has been presented. To provide a comparative analysis on the accuracy of each calculation, the example provided in …
Grounded Conductors and Bonding Jumpers for Alternating-Current Systems – Philippine Electrical Code 2017
Grounded System In a grounded system, the primary function of the main bonding jumper and of the system bonding jumper is to create the link for ground-fault current between the …
Low Voltage Three Phase AC Motors Protection – Part 4
This is Part 4 of the series of articles about three (3) phase Ac motor protection. Links to others parts could be found in below links: Part 1; Part 2. …
Low Voltage Three Phase AC Motors Protection – Part 3
This is Part 3 of the series of articles about three (3) phase Ac motor protection. Part 1 could be found here and the link for Part 2 is here. …
Low Voltage Three Phase AC Motors Protection – Part 2
This is Part 2 of the series of articles about three (3) phase Ac motor protection. Part 1 could be found here. Overload Protection Overload protection permits the motor to …
Low Voltage Three Phase AC Motors Protection – Part 1
This article will be divided into several sections to discuss the control of three (3) phase AC motors including protective features available for the control of starting and operating this …