In the August 2023 issue of Corporate Vision magazine, RHM International was recognized as one of the outstanding organizations in the world of business as a developer of innovative, high-voltage and extra high-voltage dry type insulated products for the global power transmission industry. These innovative products offer the power industry dry type alternatives to oil […]
First BIIT™ Bushings Have Been Purchased by a State-Owned Utility in Europe
In late 2023 the first BIIT™ bushings will be delivered to a large state-owned utility in Europe. These bushings were ordered with the following technical parameters: Maximum voltage of equipment:170 kV Rated Line to ground:98 kV Rated frequency:50Hz Rated Current Ir:1600 A Rated lightning impulse withstand voltage 1.2 / 50μs:550 kV Rated power frequency withstand […]
Final Acceptance Testing of HV Dry Type Current Transformers Performed at RHM International’s Hudson, New Hampshire Test Lab
In early 2020 RHM International signed a long-term supply agreement with a major North American utility for the design, manufacturing and delivery of 10 different ratings of dry type HV current transformer for the utility’s 72.5 kV, 145 kV, 170 kV, 245 kV and 330 kV power grid requirements. Shortly after the award of the […]
Integrating Condition Monitoring into the Product: Economical, Accurate and Hassle-Free
A recent generation of dry type insulation technologies has changed the economics for real-time insulation condition monitoring. This article discusses integrated condition monitoring solutions that can be built into the primary condenser cores of transformer bushings, current transformers and cable accessories (terminations and joints). These solutions include monitoring of capacitive current in the primary condenser […]
230kV and Below RIF® Transformer Bushing Designs – Seismically Qualified to IEEE-693-2018 High Performance Level
In 2015 two 230 kV RIF® bushings were seismically qualified by shake table testing according to IEEE 693-2005. This testing was performed at the Structural Engineering & Earthquake Simulation Laboratory (SEESL) at the University of Buffalo. The test samples were two identical 230 kV RIF® bushings. One bushing was tested for the normal IEEE 693-2005 […]
RHM International HV Dry Type Current Transformers Successfully Pass a Major Utility’s Homologation Type Testing Program
In early 2020 RHM International signed a long term supply agreement with a major North American utility for the design, manufacturing and delivery of dry type HV current transformers for the utility’s 72.5 kV, 145 kV, 170 kV, 245 kV and 330 kV power grid requirements. The supply agreement included an extensive homologation testing program […]
RHM International is Named a Top Transmission & Distribution Solution Provider
The June edition of Utilities Tech Outlook magazine released its annual Top 10 list of the best solution providers for the industry. Like 2019, RHM International made the list and was recognized as a true innovator and solution provider for power utilities; at the forefront of achievements, RHM’s unique capability and experience to provide like-for-like […]
Maintaining The Old While Building The Future Digital Network – The Challenge For Manufacturers And Electric Utilities In The 21st Century
Over the past number of years power grids around the world have been facing a two-headed challenge: maintaining the old and building the new. This is putting additional pressure on manufacturers to provide the right digital technologies and utilities to maintain a work force with the right technical skills to meet this challenge. Maintaining the […]
First 600 kV AC Dry Type Current Transformers Put Into Service in North America
600 kV Dry Type Transformers Energized in the MMTP Transmission Project On June 1, 2020 the first ever 600 kV AC dry type current transformers installed in North America were energized and put into service in the Province of Manitoba, Canada. Manitoba Hydro, the publicly-owned electric and natural gas utility for the Province of Manitoba […]
Live Stream Video Witnessing of RHM International Product Testing
Live Stream Quality Assurance Video At RHM International, we are acutely aware of the impacts Covid-19 and its mutations have had, and are continuing to have, all around the world. The awareness of infection spreading during in-person visits in an enclosed environment, together with restrictions and quarantine requirements during international travel, have impacted us directly. […]
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