Overview
Sorensen SG Series Overview
The Sorensen SG Series (hereafter SG Series) represents the next generation of high power programmable DC power supplies. The SG Series is designed for exceptional load transient response, low noise and the highest power density in the industry. With a full 15 kW available down to 20VDC output in a 3U package the SG Series leads the industry in power density. The power density is enhanced by a stylish front air intake allowing supplies to be stacked without any required clearance between units.
At the heart of the SG series is a 5 kW power module. Depending on the output voltage, one to six modules can be configured in a single chassis to deliver 5 kW to 30 kW of power. Combinations of these chassis can then be easily paralleled to achieve power levels up to 150 kW. Paralleled units operate like one single supply providing total system current. Available in two control versions, the SGA has basic analog controls, while the SGI provides intelligent control features.
SGI: Advanced Intelligent Control
(Sorensen General purpose Intelligent) The SGI combines onboard intelligent controls with the outstanding power electronics common to all SG family supplies. These controls enable sophisticated sequencing, constant power mode and save/recall of instrument settings. Looping of sequences makes the SGI ideal for repetitive testing. An impressive vacuum fluorescent graphical display in eight languages, context sensitive “soft” keys and front panel keyboard simplify programming of the SGI.
SGA: Outstanding Value - Analog Control
(Sorensen General purpose Analog) The SGA, with its industry leading performance, is available for customers requiring simple front panel analog controls or external control. With the same high performance power electronics as the SGI, the SGA provides essential features like 10- turn potentiometers for setting voltage and current, 3 ½ digit LED readout plus front panel over-voltage protection (OVP) preview/adjustment and reset.
| Common | |
| Remote Sense | Terminals are provided to sense output voltage at point of load. Maximum line drop 5% of rated voltage per line for 40-100V models, line drop 1V of rated voltage per line for 10-20V models, 1.5V for 30V models, 2% of rated voltage per line for models 160V and greater. (Greater line drop is allowed, but output regulation specifications no longer apply). |
| Parallel Operation | Up to 5 units may be paralleled for additional current within the power supply single-unit specifications, with exception of the DC output current set accuracy. Additional paralleled SG units will add 0.3% inaccuracy per unit. To parallel more than 5 units, contact factory. |
| Series Operation | Up to 2 units (see Output Float Voltage) |
| Input | |
| Nominal Voltage 3 phase, 3 wire + ground | 208/220 VAC (operating range 187 - 242 VAC) 380/400 VAC (operating range 342 - 440 VAC) 440/480 VAC (operating range 396 - 528 VAC) |
| Frequency | 47 – 63Hz , 400Hz ( 400Hz @ 208VAC, for 6U units is optional modification and does not carry CE, UL or CSA markings ) |
| Power Factor | >0.9 typical for 10V - 30V, 50V, 1000V and other models with optional “PF” modification. >0.75 typical for 208/220 VAC input (40V, 60V - 800V models, 0.9 available with modification “PF”) >0.72 typical for 380/480 VAC input (40V, 60V - 800V models, 0.9 available with modification “PF”) >0.69 typical for 440/480 VAC input (40V, 60V - 800V models, 0.9 available with modification “PF”) |
| Protection ( typical ) | ½ cycle ride-though , typical, on all three phases, 3 cycle ride through on single phase; missing phase shutdown ( 800V model 6.4 msec on all 3 phases ) |
