by Michelle Osborne | Nov 18, 2025 | HV, Impulse Testing, Instrument Transformer Testing
When insulation systems, transformers, or cables are stressed with impulses, you don’t want guesswork; you want clarity. Enter the Haefely HiAS 744, a cutting-edge impulse analyzing system designed to capture, analyze, and make sense of high voltage phenomena with...
by Michelle Osborne | Oct 13, 2025 | HV, Instrument Transformer Testing, Transformer Testing
Transformers serve as critical components in electrical power systems, and their operational integrity is essential for maintaining uninterrupted service across residential, commercial, and industrial sectors. Failures in transformer units can result in significant...
by Michelle Osborne | Aug 12, 2025 | Instrument Transformer Testing, Transformer Testing
Haefely’s WA 2293 is an advanced automatic winding analyzer designed for comprehensive testing of power and distribution transformers. One of the available measurement applications that can be included with the WA 2293 allows operators to perform transformer turns...
by Michelle Osborne | Mar 17, 2023 | Instrument Transformer Testing, Transformer Testing
The large photovoltaic plants where solar power begins require transformers to step up the voltage for distribution once the DC voltage coming out of the photovoltaic systems has been converted to AC voltage. As the U.S. plans to add 54.5 gigawatts of new...
by Michelle Osborne | Dec 1, 2022 | Instrument Transformer Testing, Transformer Testing
In the world of electrical measurements, instrument transformers are indispensable equipment that forms the foundation for many critical devices that fall under the category generally known as instruments such as voltmeters, ammeters, watt-meters, protection relays,...
by Dominique | Mar 20, 2019 | Instrument Transformer Testing, Transformer Testing
Instrument transformers are electrical devices that isolate and transform currents or voltages from higher magnitudes to lower magnitudes to provide safety of an end user and to protect a measuring device being used, such as a current or voltage measuring bridge,...
