The Sorensen SGA60/250D-1DAAAS is a 15 kW programmable DC power supply built on modular 5 kW power blocks, designed for demanding test, measurement, and industrial applications requiring high power density and stable output. The SGA analog control variant delivers 0–60 V and 0–250 A with exceptional load transient response and low noise output. Its modular architecture supports single-chassis configurations from 5 kW to 30 kW, with paralleling capability extending system power to 150 kW across multiple units. The unit operates from three-phase AC input at 208/220 VAC, 380/400 VAC, or 440/480 VAC, 47–63 Hz, with passive power factor correction typical of 0.9 at full load. Variable-speed, temperature-controlled cooling fans enable direct stacking without forced clearance.
Technical Specifications
• DC Output: 0–60 V, 0–250 A (15 kW full power down to 20 VDC)
• AC Input: 208/220 VAC, 380/400 VAC, or 440/480 VAC (3-phase, 3-wire + ground); 47–63 Hz
• Power Factor: Passive PFC, typical 0.9 at full load across all input voltages
• Output Float Voltage: ±300 V referenced to chassis potential
• Transient Response: Exceptional load transient response with protection against voltage excursions
• Cooling: Temperature-controlled variable-speed fans, front air intake, stackable without clearance requirements
• Modular Design: Configurable with one to six 5 kW modules per chassis; supports up to 150 kW when paralleled
• Parallel Operation: Units function as single supply; beyond five units in parallel, current set accuracy degrades 0.3% per additional unit
– Key Features
• Analog control with 10-turn potentiometers for voltage and current adjustment
• 3½-digit LED display for output monitoring
• Front-panel over-voltage protection (OVP) preview, adjustment, and reset
• Standard non-isolated remote analog control; optional GPIB, Ethernet, or isolated remote interfaces
• Low ripple and noise output
• Low audible noise operation
– Typical Applications
• Research and development testing
• Industrial power supply systems requiring high current at moderate voltage
• Multi-unit parallel configurations for extended power requirements
– Compatibility & Integration
Remote control options include standard non-isolated analog, GPIB, Ethernet, and isolated analog interfaces. Output float capability supports floating applications within ±300 V of chassis ground.
