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Newton-Evans Surveys Underway

Outlook Study for HV and MV Equipment Purchasing Plans
Newton-Evans Research is conducting a study of U.S. electric utility plans for T&D equipment purchases over the coming 36 months. If you work in power transmission or distribution and specify or procure equipment, you can help the utility community by participating in the study. In turn, we will share back the findings and provide an honorarium as well. Aggregated equipment demand levels will have an influence on prices and options for capital equipment used in power transmission and distribution.
Continue reading Newton-Evans Surveys Underway

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Study of Commercial Lab Testing of Medium and High Voltage Equipment

Newton-Evans Research Company is currently conducting a study of the market for laboratory testing of medium and high voltage electric power T&D equipment. The purpose of this study is to find out how electricity producers, T&D companies, industrial facilities and transit and rail companies handle testing of equipment such as: power transformers, load tap changers, switchgear, load interruptors, outdoor circuit breakers, fused cutouts, relays, capacitors, load break switches, reclosers and instrument transformers.

Some of the tests for these pieces of equipment that are routinely performed in a laboratory situation include: arc flash, internal arcing fault, load and capacitive switching, short circuit interruption and withstand, overload, interrupting current tests, switching tests and cable/line charging. These laboratory-based tests are sometimes performed in-house by electric utility staff, but more often an outside consultant, equipment manufacturer, university or commercial test lab is hired to perform these tests.

In an effort to better serve electric power utilities, generating companies and industrial facilities, test labs want to know: “If you had the opportunity to troubleshoot a technical problem “off the grid” using an independent lab, what are some of the problems or issues you would test in that situation?”

If you or someone you know is involved in equipment testing or maintenance planning and would like to take our survey and receive a report of findings from this study, and a stipend, send inquiries to or call 800-222-2856. A link to our survey, hosted by, is available here:

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Power Fuse Applications in the U.S. Electric Utility Industry

Earlier this year, Newton-Evans received 38 responses to a four page survey on the topic of power fuses, current limiting fuses and fuse links. Topics on the survey included number of power fuses, current limiting fuses and fuse links purchase annually; what brands are used; which current levels, voltage levels and speed ratings (K, E and DR) are used the most; what % of fuses are re-fillable vs. one-time use; and what % are used for indoor vs. outdoor applications.

What percent of power fuses being purchased are re-fillable power fuses (i.e. SM4, SM5) versus one time use (replaceable) power fuses (i.e. SMD20/SMU20, SMD40/SMU40)?

Newton-Evans Research found that most utilities either buy nearly all re-fillable power fuses or nearly all one time use power fuses. Among the sample, an average of 40% of power fuses are re-fillable, and an average of 60% are for one-time use. A frequency distribution of individual responses shows that the 2 largest portions are either 0% or 90-100% for either type.

What % of Power Fuses Are Refillable Vs. One-time Use?

What percent of power fuses are used for indoor applications (i.e. SM4Z, SM20) versus outdoor applications (i.e. SMD20, SMD40)

Overall findings from the surveyed utilities indicated that about 86% of power fuses are purchased for outdoor applications, and the remaining 14% for indoor applications. However, note that five survey respondents indicated that 70% or more of their power fuses were in fact for indoor applications.

What % of Power Fuses Are For Indoor Use Vs. Outdoor Use?

To download a sample .pdf of this report or to order online, see our reports page.

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Newton-Evans Research Study of Precision Timing Requirements For Substation Modernization and Synchrophasor Installations Underway

Newton-Evans is currently conducting a two-pronged study to determine the perceived importance and likely trends affecting substation timing and time synchronization requirements.

Survey completion time estimate: 10-15 minutes

For Transmission Asset Owners and ISOs/RTOs:
This survey requests information on timing references used by utilities and plans to implement IEEE 1588, IEC 61588, and Power Profile C37.238-2011. Time synchronization is becoming ever more important in the development of transmission networks making use of substation modernization, smart substations, and other substation automation upgrades.

Here is the survey link for use by qualified transmission and substation engineers who wish to participate in our important study.

For Substation Equipment and Intelligent Device Manufacturers:
This survey requests information on time references supported by substation devices, the role of GPS, support of PTP, and PTP adoption trends.
Here is the survey link for use by manufacturers of intelligent substation devices that require time synchronization.

Thank you for your interest in this important study. All interested participants will receive an Executive Summary of our findings from both surveys.

Respondent Confidentiality: Always Guaranteed by virtue of our membership of more than 20 years in the Council of American Survey Research Organization