Hand Protection

Paul Chamberlain, American Electrical Testing Co., LLC Columns, Safety Corner, Winter 2021 Columns

Workers’ hands are the most commonly injured body part. Whether the hazard comes from rotating machinery, pinches between two materials, heat, chemicals, or electricity, your hands are under constant attack. Without them, every task would be difficult to perform. This article identifies the common hazards and risks to a worker’s hands as well as ways to mitigate injuries and promote …

MCC Catastrophic Failure at a Client Facility

Adam Murray, Advanced Electrical Services Ltd. Columns, In the Field, Winter 2021 Columns

AES personnel were dispatched to a gas plant in northern Alberta, Canada, for emergency repair of a failed 600 v MCC bus. Before the technicians arrived, the 600 v bus components had already been disassembled by facility personnel to prepare for installation of a new MCC section. For our client, getting the facility back up and running was more critical than …

Analysis of Generator Protection Operations

Steve Turner, Arizona Public Service Company Columns, Relay Column, Winter 2021 Columns

This article analyzes several protection operations for large combustion turbine generators. Generator protection trips tend to be rare, so any major event is always of interest. EVENT 1: CLOSE-IN THREE-PHASE FAULT A large gas combustion turbine generator experienced a close-in three-phase fault during a rainstorm. The generator terminal voltage is rated 13.8 kV line-to-line, and the machine is high-impedance grounded. The …

Fault On Feeder M1A: Planning Recovery Using NFPA 70E

Ron Widup, Shermco Industries NFPA 70E and NETA, Columns, Winter 2021 Columns

Previously, we discussed a 15 kV feeder fault at a manufacturing plant and how NFPA 70E is an important tool for the electrical worker to use in the field as they troubleshoot, repair, and restore the equipment to get the facility up and running. To recap, here’s what happened: The main circuit breaker in one of the plant’s three medium-voltage substations …

NERC and NETA

Eric Beckman, National Field Services, NETA President President's Desk, Columns, Winter 2021 Columns

NETA has been setting standards that pave the way for the minimum requirements to ensure an electrical system operates reliably and safely since 1972. As a result of several widespread blackouts compromising the electric grid, the North American Electric Reliability Council (NERC)was appointed in 2006 by the Federal Energy Regulatory Commission (FERC) to develop various standards to aid in the …

Luke Leifeste: When Troubleshooting Is Mission-Critical

NETA World Staff Winter 2021 Insights & Inspiration, Insights & Inspiration

Chief Petty Officer Luke Leifeste is a MUSE Technician (Mobility Utility Support Equipment) deployed by the U.S. Navy to create, secure, and repair electrical power supply systems in Africa. With nearly 18 years in the military, he says the intrigue of troubleshooting in the field keeps him inspired for the next challenge. NW: How would you describe the nature of …

NERC PRC-027-1 Overview and Implementation

Maysam Radvar, PEng, PE, and Casey Whitt, Ready Technologies, a division of Shermco Cover Story, Winter 2021 Cover Story

As generation is connected to the grid, the available short-circuit current is evolving, increasing in areas where synchronous resources are installed and decreasing in areas where inverter-based resources, such as solar and wind power, are installed. With the U.S. Department of Energy’s recent plan to drastically increase the amount of solar connected to the grid over the coming decades, one …

Turning the Corner on Cyber-Secure Protection Testing

Bryan Gwyn, Sagar Singam, and Joe Stevenson, Doble Engineering Company Features, Winter 2021 Features

Matters of NERC PRC and NERC CIP compliance intersect during protection system testing on substation networks. In the modern regulatory environment, the benefits of computer-based relaying are challenged by the costs of cyber security and disrupted or insufficient relay testing practices. The way forward demands interconnected data and the ability to track critical metrics automatically. Organizations can modernize while ensuring …

Quick Guide to Discharge Testing

Sanket Bolar, Megger Features, Winter 2021 Features

Batteries serve as the main source of power in a substation in the event of an AC outage. They power critical loads and equipment like relays, indicator lamps, circuit-breaker control, motor operators, SCADA, event recorders, etc. As the battery is truly put to the test only during an outage, it is important to monitor battery health on a regular basis …

What Is This NERC?

Kyle Heron, Premier Power Maintenance Features, Winter 2021 Features

We find ourselves in a time where everyday life has become principally reliant on the uninterrupted supply of electricity. Powering our homes, sustaining mass transit infrastructure, and keeping the lights on at our healthcare facilities are prime examples of the importance reliable power holds to our way of life. But as our demand for electric power is ever-growing, our requirement …