It’s happened to nearly everyone. You go to use a simple electrical device…a flashlight, a voltmeter, a TV remote, or a child’s toy…and the battery is dead. It has become exhausted and must be replaced. Or worse, you open the device to find that the battery has corroded, possibly damaging or even destroying the contacts. In some critical respects, essentially …
In gas-insulated substations (GIS), the high-voltage elements, including conductors, circuit breaker interrupters, switches, current transformers (CTs), and voltage transformers, are encapsulated in SF6 gas inside grounded metal enclosures.[1] For that reason, direct access to circuit breaker (CB) main circuit terminals for testing purposes is not possible. The inaccessibility of main circuit terminals requires several actions to be taken before conducting …
The objective of protective relays and protective schemes is to protect electrical equipment such as transformers, lines, cables, bus bars, etc. during abnormal system conditions. Hence, protective relaying demands the utmost attention and diligence. However, when dealing with relay protection, protection engineers may inadvertently focus only on the relays. Engineers talk about selecting appropriate relays, applying correct settings, checking out …
In the Spring 2022 edition of NETA World, Part 1 of this article provided a brief history and evolution of electrical safety over the past 50 years. It was during this period that OSHA was formed and NFPA began developing the 70E standard. We also reviewed some of the key changes from the original 2002 edition of IEEE 1584 to …
ANSI/NETA ETT–2022 REVISION COMPLETED ANSI/NETA ETT, Standard for Certification of Electrical Testing Technicians, has completed an American National Standard revision process. ANSI administrative approval was granted January 7, 2022. The new edition will be released in March 2022 and supersedes the 2018 edition. ANSI/NETA ETT establishes minimum requirements for qualifications, certification, training, and experience for the electrical testing technician. It …
With the global pandemic continuing, the IEEE Transformer Committee was forced to conduct the fall meeting virtually. Despite the inability to meet together, the IEEE Transformer Committee remains very active and is committed to developing stronger guides to help the power industry. INSULATING FLUIDS SUBCOMMITTEE C57.146 Within the Insulating Fluids Subcommittee, the working group for C57.146, IEEE Guide for Interpretation …
The second draft of the NFPA 70B document, which is being rewritten as a standard, closed on February 9, 2022. The Second Draft report is scheduled to be posted on November 2, 2022. The Second Draft meeting is anticipated to take place in the spring of 2022. This will depend on many factors, as COVID continues to disrupt schedules to …
On September 29, 2021, NETA and the electrical testing industry had to say goodbye to a giant, Charles K. Blizard Sr. — Charlie to his friends — who left a legacy of lives and careers he touched, an industry he helped mold, and the indelible mark he made on this association. In marking Charlie’s retirement in 2008, former NETA Director …
NETA representatives recently met with military service members to provide insight to service members on the benefits provided by being part of the NAMO program. Ken Bassett presented to members of the 249th Engineer Battalion, Charlie Company at Fort Belvoir, Virginia, in August 2021. Ron Widup and Earl Wilcox presented to soldiers in the 249th Battalion’s Bravo Company at Fort …
CHK POWER QUALITY www.chkpowerquality.com.au Miro PQ45-1k Power Quality Logger and Analyzer Measures up to 1,000 V ACRMS. Ideal for the renewable energy sector, where output voltages are typically higher than 600 V, e.g., typical wind turbine generator output is 690 V The ideal instrument for all your power quality analysis, compliance checks, voltage investigations, and asset monitoring One-touch auto-generation of …