HV Test Equipment

Why Net-Zero is Cheaper for the UK

The United Kingdom has set an ambitious target to achieve net-zero greenhouse gas emissions by 2050. This goal necessitates a comprehensive transformation of various sectors,…
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Latest Electrical Industry News

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Dielectric Voltage Testing – Standard Methods

There are two standard methods from ASTM International: D877, Standard Test Method for Dielectric Breakdown Voltage of Insulating Liquids Using Disk Electrodes, and D1816, Standard…
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Circuit Breaker Time and Motion Testing

Determining mechanical condition of high-voltage circuit breakers BY JOZEF LEVI, Doble Engineering Company Life expectancy of a newly installed high-voltage circuit breaker is approximately 40…
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Line Leakage Testing: Is It Right For Your Application

The Line Leakage test (LLT for short) is most often specified to be performed as a type test in a design or engineering laboratory or…
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Partial Discharge & Circuit Breaker Asset Management

Detecting and avoiding preventable failures BY JAY GARNETT, Doble Engineering Company While metal clad switchgear can be very reliable, sometimes operating for over 50 years,…
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MV HV cable partial discharge measurement

Cable Testing Comes of Age - One Cycle at a Time

Field Testing of MV and HV cables has come a long way in recent decades. Gone are the days of old, when the traditional DC…
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PFT – 503CM

High Voltage Testing with AC Power Frequency

High Voltage, Inc. is a small design and manufacturing company located in the Hudson Valley region of New York State. Although small, we are a…
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Calculation of Capacitance Matrix in Electrical Systems

In typical electrical systems, the capacitance between multiple conductors is of primary interest. To facilitate calculations, it is possible to arrange the mutual capacitances of…
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HV Test Equipment Articles

Why calibrate test equipment

Why calibrate test equipment

You’re serious about your electrical test instruments. You buy top brands, and you expect them…
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Insulation Resistance Test

Insulation Resistance Test

Insulation Resistance (IR) test, often called Megger test, is more than 100 years old and…
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The Role of Cable Rejuvenation in Addressing the Maintenance of Aging Underground Cables

The Role of Cable Rejuvenation in Addressing the Maintenance of Aging Underground Cables

Aging underground residential distribution (URD) cables is a growing problem in communities around the world, disrupting customers…
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IR Inspection Windows for Electrical System Reliability

IR Inspection Windows for Electrical System Reliability

An Infrared Inspection Window is used to separate environments of differing pressures or temperatures while…
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Solving Underground Cable Problems with Partial Discharge Testing

Solving Underground Cable Problems with Partial Discharge Testing

How to prevent failure with partial discharge testing BY HENNING OETJEN, Megger Partial discharge (PD)…
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