EEP – Electrical Engineering Portal
Electrical Engineering Portal dedicated to el. engineers
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Latest posts
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220kV Busbar/Bus Coupler Control and Relay Panel Schematics (PDF Included)
This article provides a systematic technical analysis of the 220kV Busbar and Bus Coupler Control and Relay Panel (C&R Panel, designated as 204RP) schematics for the 220/132kV Substation, executed by General Electric. The analysis follows the logical progression of the... Read…
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Earthed vs. Unearthed Cables in LV and MV Applications
The selection between earthed and unearthed cables is not merely a material choice, but a fundamental system design parameter dictated by the network’s grounding topology. This distinction directly governs capital expenditure, ongoing operational reliability, and the physical…
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The Biggest Mistakes That Lead to Thermal Hazards within LV Switchgear
Operating at up to 1,000 volts AC, switchgear enclosures house the circuit breakers, fuses, contactors, busbars, and control instruments responsible for safely distributing power to industrial plants, commercial skyscrapers, and critical data centers. However, this continuous…
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Case Study of Harmonic Resonance and Mitigation in Power Factor Correction at an Industrial Facility
This technical article explores a real-world case study detailing the catastrophic consequences of applying standard power factor correction in a modern industrial facility dominated by non-linear loads. Industrial plants traditionally install shunt capacitor banks to improve…
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Analysis of 11kV Generator Protection Panel Drawings (PDF)
This article provides a comprehensive technical analysis of an 11kV generator protection relay panel designed to protect a 70MW, 3000RPM synchronous generator operating at a 0.8 power factor. The protection architecture is built upon a redundant, dual-channel philosophy…
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Troubleshooting LV Reactive Power Compensation On-Site
To be honest, troubleshooting low-voltage Power Factor Correction (PFC) banks on-site is not an exercise in academic theory; it is a highly physical, hazardous, and systematic process. When a facility manager reports a penalty on their utility bill, or a... Read more The post…
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Schematics Analysis of 13.8kV 100MVA Transformer Feeder
This technical article provides a detailed analysis of the schematic drawings for a 13.8kV, 100MVA Transformer Feeder. The source material for this analysis is attached drawing document (PDF), detailing an ABB UNIGEAR-ZS1 metal-clad switchgear panel designated as . The…
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Transformer Differential Protection: When Textbook Theory Doesn’t Fit Reality
The technical article provides a deep, technical analysis of the discrepancies between differential protection in theory and real-world grid relay operations. It includes customized vector graphics and schematics illustrating inrush waveforms, dual-slope restraint…
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Sheet-By-Sheet Analysis of 10kV Motor Control Centre (MCC) Technical Drawings in EPLAN
This comprehensive technical article provides an exhaustive, granular analysis of the EPLAN schematics and structural drawings for the 10kV Motor Control Centre (MCC), originally documented by EPLAN Software. The medium voltage switchgear assembly is designed to provide robust…
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Don’t Become Obsolete: The Definitive Guide to What’s Next in Power Engineering
Go a year or less without learning a new technology, and you’re out of the game. The power engineering industry is definitely one of those fields where innovation happens fast. This article will go through the 20 defining trends in... Read more The post Don’t Become Obsolete:…