High-Power DC Supplies
The AL3000 series programmable DC power supplies span 5 kW to 500 kW (up to 4 MW in parallel) with voltages from 10 V to 1000 V, offering constant-voltage, constant-current, constant-power and internal-resistance-simulation modes with fast slew rates.
Bidirectional & Regenerative Supplies
The AL3000R series are bidirectional DC power supplies that both source and sink power with line regeneration, recovering energy from the load — ideal for battery and energy-storage test applications.
Precision Current Sources
The GIS series programmable AC/DC current sources reach up to 5000 A / 200 kVA in single- and three-phase configurations, supplying stable current at variable frequencies to 2500 Hz for instrument-transformer and production testing.
Calibration & UK Support
Zenone systems are available from Caltest Instruments with UK support; DC/AC voltage and current parameters can be calibrated in our UKAS-accredited laboratory (No. 4432, ISO/IEC 17025:2017) — contact us to confirm coverage.