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 […]

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 […]

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 […]

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 […]

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 […]

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 […]

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 […]

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 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. […]