|  | | | | | This article is part of a multi-part series on how to identify, monitor, diagnose, and deal with harmonics in electrical power systems. Last month’s article discussed how to determine if current and/or voltage distortion levels were sufficiently high to classify a power quality issue as a harmonic problem. This month, we’ll review how to take the data... |
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| | | General Motors Co. recently announced a collaboration with Tesla to integrate the North American Charging Standard (NACS) connector design into its EVs beginning in 2025. Additionally, the collaboration will expand access to charging for GM EV drivers at 12,000 Tesla Superchargers, and growing, throughout North America. |
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| | | Electric vehicles (EVs) have taken off across the entire United States in 2022, with public interest at an all-time high. With this demand comes an increased interest in available rebates and incentives for installing charging stations for these EVs. BriteSwitch reveals which states have the most action when it comes to electric vehicles and charging... |
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| | | In Episode 14 of “EC&M Asks,” a video series featuring subject matter experts (SMEs) answering reader-submitted questions regarding popular electrical topics, Ron Widup, vice chairman, board of directors, and senior advisor of technical services for Shermco Industries covers bus duct basics. He addresses the basic construct of a bus duct, how to avoid... |
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| | | Just how well do facility managers understand power surges and surge protective devices (SPDs), otherwise known as transient voltage surge suppressors (TVSSs)? According to a survey conducted by the Electrical Safety Foundation International (ESFI) and National Electrical Manufacturers Association’s (NEMA) Low Voltage Surge Protective Devices Section... |
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| | | In Episode 27 of “EC&M Tech Talk,” Randy Barnett reviews the purpose and methods used for measuring the quality of electrical insulation on conductors and equipment. Insulation testing is the commonly used method for several reasons. Performing a spot reading test gives a quick evaluation of the condition of the insulation. This test can identify if... |
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| | | Selecting the proper voltage sag mitigation option for high-current equipment can be tricky. Most of the mitigation technologies available today are designed for lower current applications (e.g., control circuits). In most power quality cases, the control systems are the most sensitive to voltage sags in the electrical system. However, manufacturer... |
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| | Advertisement | For your next project, learn how lightweight fiberglass conduit offers the most cost-efficient option while providing a strong, durable, easy-to-install electrical conduit across a variety of applications. |
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| | | Most facilities are aware of the electrical disturbances that occur on the electric utility side of the meter, as they are the recipients of these events. Voltage transients are caused by electric utility capacitors switching on or off, reclosers testing in and out, and foreign objects briefly brushing the power lines. |
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| | Advertisement | With a variety of educational courses to choose from, the Facilities Expo offers electrical professional expertise and insights into the latest technologies and solutions to keep your building operating smoothly – all for free. Register today! |
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| | | The plant electrical engineer of a local manufacturing plant has reached out to your electrical services firm for technical help with a political problem. This quiz is drawn from an actual case history in which a similar situation existed with the plant manager effectively reporting to the HR manager by deferring to him and ceding authority to him.... |
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| | | Members Webinar: Identifying and troubleshooting the most common issues with switchgear condition and how they relate to arc flash hazards |
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| | | This year's Top 40 Electrical Design Firms exceeded expectations on basically all fronts. Reporting a combined electrical design revenue total of $3.918 billion in 2022 (the full year of data that the 2023 survey results are based on), respondents managed to come in 22.2% higher as a collective group than the year before. |
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| | | Vote between now and midnight CST on June 23, 2023 to pick the product you believe should be named 2023's Product of the Year. |
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| | | In last month’s column, I addressed the question of what harmonics is and why you should care. In this installment of our multi-part series on power quality topics, we’ll move on to how to identify, monitor, diagnose, and deal with harmonics in electrical power systems. |
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| | | Case study demonstrates the importance of looking before you leap when investigating PQ problems. The operator of a large solar farm was experiencing nuisance interruptions, causing significant downtime. Read on to see what the power quality investigation uncovered. |
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| | | One of the most often mentioned and misunderstood power quality issues we see with commercial, industrial, and power-generating electrical equipment is harmonics. This is Part 1 of a multi-part series to discuss how to identify, monitor, diagnose, and deal with harmonics in large electrical systems. |
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| | | Take this quiz about grounding/bonding basics and enter for a chance to win a $25 gift card to Amazon, iTunes, or Cabela’s! |
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