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HV/EHV Power Cables Can Now Be Field Tested On Site With VLF PD and TD Diagnostic Test Techniques

Nov. 4, 2009

COPAKE, NY – High Voltage, Inc. Field HV Withstand/ Proof Tests with on–site Partial Discharge and Tan Delta Diagnostics is now possible for HV Power Cable classes such as 69 / 110 /132/ 220 kV. By using a High Voltage, Inc. VLF -200CMF (0 to 200 kV AC , .1 Hz Sinewave Hipot) coupled with Power Diagnostix GmbH ICM Flex PD/TD Measurement Systems, useful diagnostic cable integrity evaluations can be made.

By using a VLF source instead of power frequency or resonant technology, tremendous test equipment cost savings and on-site labor savings are possible while obtaining crucial information on these critical power delivery circuits. Cable loads up to 3.75 Microfarads can be tested utilizing one of three test frequencies - .1 Hz., .05 Hz. and .02 Hz.

VLF PD & TD diagnostics can provide cable system infrastructure assessments in terms of quantitative values for cable age related problems, installation damage, manufacturing defects, future reliability indicators such as water tree assessments and future performance conclusions to make critical decisions on replacement, rejuvenation or the need for new cable leg and splice segments.

Contact High Voltage, Inc.

31 County Rt. 7A, Copake, NY 12516

Phone: 518-329-3275

Fax: 518-329-3271

E-Mail: [email protected]

Web site: www.hvinc.com

Agency Contact:

Walter Hearn Associates LLC

Design for Marketing

1099 Deerfield Dr. NW

Blacksburg, VA 24060

Phone: 540-951-2853

Fax: 540-951-0591

E-Mail: [email protected]

Web: http://www.whearn.com

About the Author

Amy Fischbach | Field Editor

Amy Fischbach is the field editor for the Electric Utility Operations section of Transmission & Distribution World. She worked for Prism Business Media (now Penton) for eight years, most recently as the managing editor of Club Industry's Fitness Business Pro magazine. She is now working as a freelance writer and editor for B2B magazines. Amy earned her bachelor's and master's degrees in journalism from Kansas State University in Manhattan, Kansas. She serves as the national vice president of the American Society of Business Publication Editors. She can be reached at [email protected].