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...

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 and causing business challenges for utility providers. But in most cases, the traditional remedy for URD cable failure—taking the impacted...

Substation Testing

CONDITION MONITORING IN AN AGE OF MODERNIZATION How (and Why) to Adapt

The widespread application and use of electricity, which may now seem like a simple commodity, is considered one of the greatest technical developments of all time. However, keeping up with today’s demand for power is anything but simple: a vast amount of resources goes into maintaining a...

Digital Twins for Substations: Bridging the Physical and Digital Worlds

In the rapidly evolving landscape of power grid management, digital twin technology is emerging as a game-changer for substations. By creating virtual replicas of physical assets, digital twins bridge the gap between the physical and digital worlds, enabling enhanced operational efficiency and...

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...

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 years. Throughout its life, under normal circuit conditions, the circuit breaker will operate less than...

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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

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

Substation Testing

CONDITION MONITORING IN AN AGE OF MODERNIZATION How (and Why) to Adapt

Digital Twins for Substations: Bridging the Physical and Digital Worlds

Breaker Testing

Vacuum Interrupter Testing for Circuit Breakers

Circuit Breaker Time and Motion Testing

HV Test Equipment

Zensol new instrument for OLTC testing

HV Test Equipment Articles

FirstEnergy Explores Alternatives to PJM Capacity Market

Why Net-Zero is Cheaper for the UK

The Dissolved Gas Analysis Toolkit

Dynamic Resistance Measurement

The End of the Road for Transmission Incentives

Cable Testing Comes of Age - One Cycle at a Time

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SDT340 Ultrasound Data Collector

Bearing Toolbox for Advanced Bearing Failure Analysis

ON-GUARD Automated Lubrication System

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Electricity Today T&D Magazine - HV Electrical Testing January&February 2020 Special Edition

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Electricity Today T&D Magazine - Reliable Power Testing January&February 2021 Special Edition

Zero-Trust Substations: How CIP Is Shifting from Perimeter Defense to Continuous Vendor and Supply-Chain Risk Management

Ethernet Cable Selection for Utilities

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Understanding the IEC 61850 Protocol in Substation Automation

Properly Grounded Substations

SCADA for Substations

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