Doble Ensures Enhanced Asset Performance with Latest Addition to Calisto® Condition Monitor Platform, Calisto N1
September 6, 2023Calisto N1 enables confident asset management decisions with access to critical health data from multiple sensors across assets
Moving From Command & Control to Coaching & Collaboration: Matthew Carrara Of Doble Engineering On How Leaders and Managers Can Become Better Coaches
March 22, 2023Matthew Carrara, President of Doble Engineering and ESCO Utility Solutions Group (USG), had the opportunity to interview with Authority Magazine for their series called “Moving From Command & Control to Coaching & Collaboration; How Leaders and Managers Can Become Better Coaches”.
Transformer Resiliency to Forge Clean Energy Future
January 17, 2023As the U.S. prepares to ramp up production of transformers and other grid components, the focus must be on quality and not just quantity.
Doble Engineering Appoints Matthew Carrara as President
December 7, 2022Esteemed energy industry veteran joins leading provider of power grid diagnostics solutions to propel the company into its next phase of growth
Doble’s INSIDEVIEW® 6 Delivers Predictive Maintenance and Intelligence for the Enterprise
December 5, 2022Latest version of Doble’s diagnostic software includes dramatically improved workflows, speed, configurability and reporting to drive enterprise-level deployments and accelerate ROI
Doble Releases Calisto Cable Condition Monitoring Solutions for High Voltage and Medium Voltage Cable Systems
November 1, 2022Power and utility teams gain critical cable-health insights and monitoring capabilities to boost safety, reliability, and profitability across their cabling assets.
Doble Releases PowerBase Web Viewer Feature for Access to Asset and Test Data Anytime, Anywhere
September 29, 2022New web-based PowerBase™ viewer streamlines office-to-field processes and expands team access to critical maintenance and engineering records.
Doble Simplifies Long-term Accurate Dissolved Gas Monitoring with Calisto® R9
August 29, 2022Next generation online monitor combines infrared gas measurements with automated on-board calibration using water vapor
Doble Equips Utilities to Embrace Substation Automation with F6880 Digital Network Analyzer
May 24, 2022Easy-to-use, compact and lightweight instrument helps engineers confidently overcome the challenges of troubleshooting IEC 61850 digital substation
Doble Test Assistant 8 Delivers Greater Diagnostic Power and Instrument Support for Comprehensive Field Testing and Analysis
March 7, 2022Latest version of DTA software is now compatible with Vanguard Turns Ratio products and adds exciting current components for testing with the M7100 and M4100.
Turning the corner on cyber-secure protection testing
December 6, 2021Matters of NERC PRC and NERC CIP compliance intersect during protection system testing on substation networks. In the modern regulatory environment, the benefits of computer-based relaying are challenged by the costs of cyber security and disrupted or insufficient relay testing practices. The way forward demands interconnected data and the ability to track critical metrics automatically. Organizations can modernize while ensuring compliance readiness by implementing systems that integrate protection and cyber domains into scalable management platforms.
Is it safe?
November 16, 2021When primary station equipment trips out, it is often the substation maintenance engineers who must review the situation, get the data needed to make an informed decision, and then ‘make the call’…
Investigation and Teardown of OIP Bushings
October 15, 2021As an integral part of the electric delivery system around the world and the interface between the transformer and overhead bus, bushings failures have a significant negative impact. Because of this, there is a special focus on determining the root cause of the failure. A bushing teardown investigation is employed in cases where there is a need to determine the failure mechanism. This paper is a brief synopsis of how companies perform a bushing teardown.
Determining Cellulose Degradation in Transformers Using Indirect Tests
August 31, 2021The design life of a transformer is usually about 20 to 25 years. In the United States, estimates show the average age of a transformer is currently around 42 years, which means a number of even older units are still in service. As with all things, transformers age and degrade over time. Transformer failures can come from a variety of sources including through faults, faulty crimps and brazes, corrosive sulfur, poor design, water intrusion, collateral damage from a bushing or load tap changer (LTC) failure, incorrectly sized leads, and a host of other issues. Overall, however, the demise of a transformer from normal aging is linked directly to the condition of the solid insulation (i.e. paper, cellulose).
Condition Monitoring Realities: Dealing with the Unexpected
August 15, 2021We should have expectations when applying condition monitoring to transformers. If we know what to expect then we can identify measurements which are unexpected or anomalous and worthy of deeper investigation.