High Voltage Test Equipment - Electricity Today

Cable Testing

Energy Ottawa's State-of-the-Art, Non-Destructive Cable Measurement System for Medium Voltage Distribution Cables

Energy Ottawa offers a state-of-the-art, non-destructive cable measurement system for the dependable assessment of medium voltage distribution cables. We have partnered with National Research Council Canada (NRC), the Government of Canada’s premier research and technology organization, to...

Solving Underground Cable Problems with Partial Discharge Testing

How to prevent failure with partial discharge testing BY HENNING OETJEN, Megger Partial discharge (PD) measurements are increasingly used as a reliable and non-destructive diagnostic method to detect weak spots in the insulation of underground cables. Routinely, partial discharge measurements are...

Transformer Testing

Pennsylvania’s Yaw Bill

In a significant move for Pennsylvania’s energy sector, State Senator Gene Yaw has introduced a transformative piece of legislation aimed at modernizing the state's approach to power plant development and capacity management. The bill, which has been the subject of considerable discussion,...

ACCELERATING TOWARDS GREATER TESTING EFFICIENCY - A true transformer test van

Test lead management, including quality of connection and correct lead placement, is an important part of testing. Poor or incorrect connections can be the culprit for nonrepresentative results that ultimately lead to longer test times and, in some cases, wasteful investigations...

Breaker Testing

Vacuum Interrupter Testing for Circuit Breakers

How to predict field life using vacuum interrupters BY FINLEY LEDBETTER, Group CBS Utilities have widely replaced older air-magnetic and oil interrupters for circuit breakers rated at one kilovolt (kV) or higher with vacuum interrupters (VI) due to higher interrupt capability. Vacuum interrupters...

Power Factor Testing of Circuit Breakers

Detecting contamination and deterioration in SF6 breakers to ensure longevity BY LINDA NOWAK, Doble Engineering Company The purpose of “Doble testing”, or power factor testing, SF6 (sulfur hexafluoride) circuit breakers is to detect the presence of contamination and/or deterioration of the...

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Zensol new instrument for OLTC testing

According to CIGRE A2.34, the dynamic resistance measurement or DRM (OFFLINE) is a test that offers diagnostics for several diverter or selector switch malfunctions such as: contact problems, broken springs, broken transition resistors, poor contact pressure, inadequate transition time, momentary open circuit, and synchronism motion issues.

Zensol’s DRM principle

Tap windings are powered with a DC voltage source. The current fluctuations are recorded during the switching process. The schematic below shows the principle of the...

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Cable Testing

Energy Ottawa's State-of-the-Art, Non-Destructive Cable Measurement System for Medium Voltage Distribution Cables

Solving Underground Cable Problems with Partial Discharge Testing

Transformer Testing

Pennsylvania’s Yaw Bill

ACCELERATING TOWARDS GREATER TESTING EFFICIENCY - A true transformer test van

Breaker Testing

Vacuum Interrupter Testing for Circuit Breakers

Power Factor Testing of Circuit Breakers

HV Test Equipment

Zensol new instrument for OLTC testing

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FERC Approves Interconnection for Talen Energy, Amazon Data Center

Ground Tester Section Criteria

Dielectric Voltage Testing – Standard Methods

Cable Testing Comes of Age - One Cycle at a Time

Circuit Breaker Time and Motion Testing

Dynamic Resistance Measurement

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ULTRAChecker for Operator Driven Reliability

ON-GUARD Automated Lubrication System

Bearing Toolbox for Advanced Bearing Failure Analysis

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PT17 Series

SDT340

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Electrical Equipment Testing & Maintenance Vol. 6

Electrical Testing & Maintenance Handbook Volume 5

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Smart Grid Network Best Practices

Microgrids: Moving Away From Central Power

Selecting Substation Medium-Voltage Switchgear: GIS vs. AIS

Wireless Networks and Substation Automation

Substation Focused on Environmental Design

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