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Sorensen elgar raytheon dc power supply dcr 300VDC 1.5A


Raytheon Sorensen Elgar Model DCR 300-1.5b
This power supply has the over voltage protection (OVP) option. This option protects the power supply from external sources of voltage and is wired across the output terminals. You can see it's adjustment pot screw behind the back panel in the center.
It is housed in a 3.5 inch (2U) high, 19 inch wide rackmount chassis and is 19 inch deep. It has Two operational modes, voltage Mode (constant voltage) and Current Mode (constant current). The power supply weighs about 50 pounds and is very well built. It has tape marks, old stickers, scratches, scrapes, rust, corrosion and wear marks as a result of being moved around the lab and into the field for the last 20 plus years. Look closely at the photos below to see the external condition of the power supply. If you want additional photos please email me. This power supply sold new for over $1500 and is considered to be the top of the line in power supplies.
This power supply was built by Raytheon Company before the Sorensen product line was broken off from Raytheon. Sorensen was eventually purchased by Elgar.
DCR-B Series high power programmable DC power supplies have input SCR pre-regulator topology plus regulation and transient response performance suitable for all test and measurement applications.
* Series and Parallel Operation
* Remote voltage or resistance programming in voltage or current modes
* 50 or 60 Hz operation, without de-rating
* 0.03% line and load regulation (typical)
* over voltage protection crowbar circuit option is installed
* 120 volt single phase input standard on models
Voltage: 120 volt, single phase @ 9 amps (103-127 vac)
Isolation Voltage: 1000 volt DC input to output
Regulation: 0.03% in voltage mode for a 100% load change and full line voltage change combined
Noise Ripple: 65 mV to 1200 mV , depending on model
Transient Response: 50mS typical for a 50% load change
Operating Temperature Range: 0 - 70 C, (derate power 1.67%/ C above 40 C)
Remote Programming: Resistance and voltage programming via rear terminal strip.
V/I Crossover: Automatic between voltage and current
Ambient Cooling: Convection cooled
Dimensions: 19"w x 20.25"d; Height - 3.5"
Weight: Maximum: 45 lbs. (22 kg)
View the Datasheet, operation and service manual at the following links:
Spec Sheet for the DCRB series click link below
Operation and service manual for DCRB series click link below
DCR300-1.5b manual.pdf with additional pages:
Operation and service manual for DCRB series model by clicking link below
I have included specs and manuals for the newer DCRB2 series because they are nearly the same and have a good troubleshooting section.
Newer model DCRB2 operation manual click link below
DCR300-1.5b2 operation manual.pdf:
newer model DCRB2 service click this link
DCR300-1.5b2 service manual.pdf
http://web.archive.org/web/20060312004408/ /pdfs/datasheets/dcrb2.pdf
You will not receive any manuals with the power supply so I suggest you save copies of the manuals above on your computer and print these manuals because these links may stop working in the future.
If you have any problems with the item, please email me so we can resolve the problem.
Output and programming terminal block
Sorensen Sorenson Raytheon test equipment elgar dcrb2 dcrb rack mount



Sorensen elgar raytheon dc power supply dcr 300VDC 1.5A