AMREL's Test Solutions

AMREL's Zero Volt Load (ZVL) regulates up to 40Adc in a half-rack 4U box and 80Adc in a full-rack 4U box with 60/150Vdc and 100/200/300Watt ratings. Customized ZVL ratings are available for single cell design testing applications. For higher currents, AMREL's BST plus eLoad solution provides 300Adc in a full-rack 4U space; additional BST can be paralleled for high-current testing paired with an equivalent current-rated eLoad.

The eLoad line has one of the lowest compliance voltage to maximum current rating ratios. Its water-cooled (PLW)/air-cooled (PLA) programmable loads provide dissipation of thousands of amps < @0.4Vdc. The cost-effective, ultra-low voltage (FEL) series provides dissipation at 50Adc@ <0.4Vdc in a 60/150W package and 100Adc@ <0.4Vdc in a 300W package.

Since impedance measurement (IM) and EIS are becoming standard in fuel cell testing for R&D and production, AMREL has introduced a line of cost-effective and flexible solutions. Its FRA design uses digital correlation to filter harmonics/noise, tests stacks up to 500Vdc, provides both PSTAT (CV) and GSTAT (CC with eLoad) controls and displays IM in Bode/Nyquist plots for multi-frequency tests and real/imaginary and gain/phase formats for single-frequency monitoring. The FRA plus eLoad solution allows high-current IM up to thousands of amps, and constant-current control (GSTAT) allows user-configured ac/dc current levels to prevent current overload of the stack/cell. Customized FRA plus eLoads are tailored to meet fuel cell test system requirements. For large/medium power fuel cell stack systems, the PLA/PLW line also offers built-in current interruption capability.

Contact AMREL, 3445 Fletcher Ave., El Monte, CA 91731, phone: 1-800-654-9838 or visit www.amrel.com.