Harmonic Analysis – What if Utility Data Changes? (What Could Possibly Go Wrong?) https://youtu.be/d5JJHBivp7c?si=yMLi8Z0MhpROPhlb When the source inductance interacts with power factor correction capacitors, a resonance can result creating many […]
https://youtu.be/dt3e8SMJhrw This video provides a short overview of the 6 PDH/ 0.6 CEU On-Demand Training Program: Coordination Studies by Jim Phillips, P.E. A coordination study, sometimes known as protective device […]
Achieving perfect coordination may seem as elusive as spotting a unicorn. In order to obtain perfect coordination, overcurrent devices are selected and set so that only the device nearest a […]
Coordination Studies – Preview to the On-Demand Class https://youtu.be/dt3e8SMJhrw This video provides a short overview of the 6 PDH/ 0.6 CEU On-Demand Training Program: Coordination Studies by Jim Phillips, P.E. […]
Coordination Studies | Determining Device Priority | Training Module 15 https://youtu.be/6IkNnbp-bgs Achieving perfect coordination may seem as elusive as spotting a unicorn. In order to obtain perfect coordination, overcurrent devices […]
What do you do if the short circuit data is unavailable from the electric utility company? Can you use an “infinite source” calculation? Many say an infinite source is not […]
Why Horizontal Electrode Configuration? Although not the most common electrode configuration that is used when performing an arc flash study, using the Horizontal Conductors/Electrodes inside a metal box/enclosure (HCB) produces […]
This video is a preview of the 16 hour class: How to Perform an Arc Flash Study – IEEE 1584. In the full class, Jim Phillips, P.E. takes you through […]
NFPA 70E states that retraining in safety-related work practices and applicable changes in this standard shall be performed at intervals not to exceed 3 years. This time frame is […]
In this five-part video series, Jim Phillips, P.E. provides an overview of the major changes for the 2021 edition. First published in 1979, the 2021 edition places a greater emphasis […]
Jim Phillips continues his discussion of the major changes to the 2021 Edition of NFPA 70E. In Part 2 he covers changes and a major reorganization to Article 110 […]
The most important element of electrical safety is eliminate the hazard and risk. In Part 3 of this 5 part series about the 2021 Edition of NFPA 70E, Jim […]
In Part 4, Jim Phillips discusses major changes to the 2021 Edition of NFPA 70E Article 130 Work Involving Electrical Hazards and the addition of NEW Article 360 Safety-Related […]
Jim Phillips wraps up the discussion of the 2021 Edition of NFPA 70E with Part 5 of 5: Informative Annex D Incident Energy and Arc Flash Boundary Calculation Methods, […]
Wondering what a live streaming class is like? Check out this preview video. The course: Medium Voltage Power Systems IS a live interactive presentation complete with Jim discussing the topic […]
Jim Phillips explains the upcoming live streaming of his classes. Read more for details.
This is the first of a three part series where Jim Phillips talks about alternative arc flash labeling strategies to simplify the process. He points out that some labels can […]
Jim Phillips discusses the new exception added to the 2018 Edition of NFPA 70E. 130.5(H) Exception No. 2 provides an alternative method for arc flash labeling of complex systems that […]
Jim Phillips describes his method for simplifying arc flash labeling and possibly eliminate the need to re-label when there are system changes. Use a standardized arc flash boundary and the […]
Jim Phillips answers people’s questions that are sent during an on line program about arc flash studies. Questions include: What to do for a circuit breaker between a generator and […]
The Second Edition of IEEE 1584 – IEEE Guide for Arc Flash Hazard Calculations Studies was 16 years in the making. In this 1-hour video, Jim Phillips takes you through […]
Learn about the major changes to the 2018 Edition of NFPA 70E on your own schedule – for FREE! This video is based on Jim’s 2018 NFPA 70E changes […]
SAMPLE VIDEO CLIP NEW FOR 2017! 4 DVD training program taught by Jim Phillips, P.E. $199. Learn how to perform short circuit analysis / calculations and equipment adequacy […]
One line diagrams that are used as part of an arc flash study must be up to date. NFPA 70E 120.1 Verification of an Electrically Safe Work Condition, requires checking […]
Per Unit System and Symmetrical Components are used for many short circuit calculations. Electric Utility Data is also often provided in terms of Per Unit and Symmetrical Components. Watch this […]
Webinar – Utility Short Circuit Current Data, Arc Flash Studies and Change by Jim Phillips, P.E. [See more about Jim Phillips] It goes up, it goes down, sometimes it is […]
Arc Flash Study data collection usually requires a tremendous effort. What is the typical effort for data collection? Jim Phillips conducted a survey at ArcFlashForum.com and asked what percentage of the entire arc […]
The Electro Mechanical Protective Relay was once the backbone of higher voltage electrical power distribution systems. Although digital relays are used today, there remains a high percentage of older equipment […]
Arc flash calculations assume the door is open. This arc flash video shows why. Although not an extreme amount of short circuit current for this test, it is enough to […]
A substation next to a swimming pool created grounding and electrical safety questions for Jim Phillips as he and his wife were on a road trip between Los Angeles and […]
A 2 second maximum arc flash duration is a reasonable cut off based on IEEE 1584-2002. This is provided there is room for a person to escape during an arc […]
Power System Harmonics are multiples of a fundamental frequency typically 60 Hz. or 50 Hz. Non-linear loads are the biggest source of harmonics that can create serious problems on an […]
Arc flash studies should be simple. Jim Phillips shows how to use the incident energy to validate an arc rating selection of PPE. His approach is to perform the arc […]
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