Stainless steel braking/crowbar resistors deliver industry-high pulse energy capability to 3.46-MJ
Higher pulse load capacity versions built to customer specifications are also available.
The Vishay Draloric resistors released today are optimized as crowbar resistors for frequency converters for three-phase generators in wind power plants and pumped-storage hydro power stations. In addition, they serve as brake and chopper resistors for railways, elevators, and industrial systems. The ULDCR resistors feature a patented self-supported, robust, and compact modular design that is easily assembled into all of these applications. The resistors’ component materials are also resistant to salt water.
For a single pulse, the devices feature a typical temperature rise below 350°C. Offering high operating temperatures up to 375°C, the ULDCR series provides resistance values from 1 mΩ to several ohms, with available tolerances of ± 5% and ± 10% and a maximum expected change of resistance in service of less than ± 20%.
Manufactured without any organic compounds, the devices are RoHS-compliant and conform to Vishay ‘Green’ standards.
Samples and production quantities of the ULDCR resistors are available now, with lead times to 14 weeks for larger orders at competitive prices.
More information about the ULDCR resistors at www.vishay.com/doc?21026
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