A-RENT – Booth 515 www.a-rent.com Powering Growth: Phoenix Expansion The Phoenix, Arizona market is booming with solar, BESS, semiconductor fab, and data center investments. To serve our local customers’ test equipment needs, A-Rent established a new Phoenix location in 2024, and we’re upsizing to a 13,000-square-foot facility in Chandler, Arizona during Q2 2025. Our AZ locations offer our complete fleet …
IEEE PES ICC Committee Report
The IEEE Power and Engineering Society (PES), Insulated Conductor Committee (ICC) met on October 21–23, 2024, in Bonita Springs, Florida. This committee creates standards for low-, medium-, and high-voltage power distribution cables. Our NETA standards heavily reference the IEEE standards to provide guidance on voltage test levels, durations, and acceptable criteria. It is important to not only be up to …
ANSI/NETA Standards Update
ANSI/NETA ATS–2021 SCHEDULED FOR RELEASE AT POWERTEST 2025 AND PRE-SALE IN THE NETA BOOKSTORE ANSI/NETA ATS, Standard for Acceptance Testing Specifications for Electrical Power Equipment & Systems, 2021 Edition, is currently being revised following the ANSI consensus process. An additional 14-day Recirculation Ballot began December 6, 2024, and ended December 20, 2024, with the Public Comment period extended to January …
CAP Spotlight: AVO Training Institute: Commitment to Quality
NETA Corporate Alliance Partners (CAPs) are industry-leading companies that have joined forces with NETA to work together toward a common aim: improving quality, safety, and electrical system reliability. In this ongoing NETA World series, we focus on the thought leadership behind these successful companies. This issue’s CAP Spotlight features an interview with Greg Richmond, Director of Training Operations at AVO …
Ground Grid Continuity and Integrity Testing
The continuity and integrity test is one of the relevant techniques for assessing the condition of substation grounding systems. This article explains how to detect inconsistencies in the grounding grids, including poor connection of HV equipment to the ground grid and deterioration of the grid itself, and suggests suitable field tests and appropriate equipment for detecting those inconsistencies. The test’s …
Guide to Transformer Windings & Coils
Transformer windings are coils of copper or aluminum wrapped around a transformer’s core (Figure 1). They determine what voltage is produced and whether that voltage is stepped up or down. This article looks at the parts of a transformer’s windings as well as specific transformer winding designs. PARTS OF TRANSFORMER WINDINGS Transformer coils have two main parts: a primary winding …
Eliminating Electrical Leakage to Ground on Standby Backup Batteries
Out of sight, out of mind is a common aphorism, but when it’s applied to standby backup batteries, it can — and does — become catastrophic. Standby battery banks support production lines, hospitals, computer rooms, and entire facilities to provide an alternate power source should utility power fail. The standby battery is the interface between a smooth transition and total …
Partial Discharge
Partial discharge in electrical equipment insulation can lead to catastrophic failure. NETA Certified Technicians must understand the reasons partial discharge may occur and how to properly detect, diagnose, and correct it. 1. What is partial discharge within an insulating system?a. A brief short circuitb. A voltage spikec. A small explosiond. A small electrical discharge 2. How frequently might partial discharge …
Better Questions = Better Outcomes
For great leaders, safety is typically not their number one priority; it is an unwavering core value. Priorities change, while values remain constant in all situations. Great leaders also typically want to have success….operational success, individual success, and especially safety success. SAFETY SUCCESS How do you define safety success? Have you achieved safety success if you have zero recordable …
Improvements to REF Protection for Low-Resistance Grounded Systems
A restricted earth fault (REF) protection element provides sensitive detection of ground faults near the neutral of a transformer wye-connected winding. The sensitivity gains from the REF element are especially more valuable if the equipment is low-impedance grounded. Security of the REF element may be jeopardized by external faults, such as a phase-to-phase-to-ground or an evolving fault with CT saturation. …









