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Keentel Engineering Newsletters

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Blog and Updates

PRC-028 PRC-029 and PRC-030 NERC IBR compliance guide
By SANDIP R PATEL • October 3, 2026
Engineering guide to PRC-028 disturbance recording, PRC-029 ride-through and PRC-030 event detection for inverter-based resources.
Keentel Engineering graphic showing damped and undamped subsynchronous oscillations.
By SANDIP R PATEL • October 3, 2026
A practical guide to SSO classification, SSR, PEDI, Wind-SSCI, EMT analysis, mitigation and protection based on CIGRE TB 909.
On-site generator testing in ERCOT
By SANDIP R PATEL • October 6, 2026
Learn ERCOT generator testing for PFR, MOD-025 and MOD-026/027, including staged tests, capability verification, dynamic models and field testing.
PV String I-V Curve Testing for Solar Performance Loss
By SANDIP R PATEL • October 3, 2026
Learn how PV string I-V curve testing identifies hidden solar performance losses, including soiling, shading, mismatch, degradation, and wiring faults.
Active harmonic filter reducing VFD current harmonics and grid THDi.
By SANDIP R PATEL • October 3, 2026
Learn how active harmonic filters work, how to size AHF systems, reduce VFD harmonics, calculate losses, and meet IEEE 519 TDD limits at the PCC.
PEDI CI-N and CI-D power system interaction diagram
By SANDIP R PATEL • October 3, 2026
Learn power electronic device interactions (PEDI), including CI-N and CI-D, weak-grid stability, SCR, EMT studies, impedance analysis and mitigation for IBRs.
Coolant distribution unit for data center cooling
By SANDIP R PATEL • October 3, 2026
Learn how data center coolant distribution units (CDUs) work, including FWS and TCS loops, heat transfer, sizing, redundancy and liquid cooling for AI data centers.
Data Center Tiers I to IV: An Electrical Engineer's Guide to Redundancy, Maintainability and Fault T
By SANDIP R PATEL • October 3, 2026
Compare Data Center Tiers I–IV, including redundancy, uptime, Tier III concurrent maintainability, Tier IV fault tolerance, UPS, generators and power design.
BESS grid stability with frequency response and POI interconnection.
By SANDIP R PATEL • October 3, 2026
Learn how BESS supports grid stability through fast frequency response, voltage support, oscillation damping, black start, grid-forming controls and EMT studies.
Data Center Digital Twins, BIM & Agentic AI Guide
By SANDIP R PATEL • October 3, 2026
Learn how data center digital twins combine BIM and agentic AI to optimize power, cooling, maintenance, capacity, resilience and facility operations.
Motor Protection & Relay Coordination TCC Guide
By SANDIP R PATEL • October 3, 2026
Learn motor protection and relay coordination using TCC curves, IEEE standards, transformer damage limits, CTI settings and a 138/13.8 kV example.
NERC and ERCOT compliance guide for natural gas power plants showing power system diagram and grid c
By SANDIP R PATEL • September 30, 2026
Learn NERC and ERCOT compliance requirements for natural gas power plants, including GO/GOP obligations, O&P standards, GADS reporting, and audits.
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