PRODUCTS OFF-LINE TESTING & ASSESSMENT Circuit Breaker Power Supplies UPS S3

UPS S3

Portable AC/DC Power Supply

The Vanguard UPS S3 is an AC/DC adjustable output power supply designed to operate substation circuit breakers. The UPS S3’s AC and DC voltage sources can supply up to 10 Amperes during the circuit breaker coil energization and circuit breaker charging motor operation. Powered by a single phase 90-120 Vac voltage source, the UPS S3 provides an isolated adjustable AC/DC voltage source. Output voltages are variable via the front panel control knob.

The unit’s variable AC output voltage source (10-140 Vac) is rated at 140 Vac @ 9A continuous. It is also full-wave rectified and filtered to provide an isolated DC voltage source. The DC voltage source (10-200 Vdc) is rated at 180 Vdc@9A (2 seconds) or 180 Vdc @ 2A continuous. Both AC/DC voltage source outputs are protected by a circuit breaker.

A built-in dual volt meter displays both AC and DC voltage simultaneously on a back-lit LCD screen (128 x 64 pixels) that is viewable in bright sunlight and low light levels. Both AC and DC voltage displays range from 0-200 Vrms. The UPS S3 is housed in a plastic enclosure (17.5” x 12.5” x 11.7”) and weighs 45 lbs. (20.4 Kg). A power cord, safety ground cable and voltage connection leads are included.

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FEATURES & BENEFITS

AC/DC adjustable output power supply designed to operate substation circuit breaker
Can supply up to 10 A during the circuit breaker coil energization and circuit breaker charging motor operation
Variable AC output voltage source (10-140 Vac) rated at 140 Vac @ 9 A continuous
DC voltage source (10-200 Vdc) rated at 180 Vdc@9 A (2 seconds) or 180 Vdc @ 2 A continuous
Both AC & DC voltage source outputs protected by a circuit breaker

TECHNICAL SPECIFICATIONS

*PHYSICAL SPECIFICATIONS*	Dimensions: 17”W x 11.7”H x 12.5”D (44.5 cm x 30.0 cm x 31.8 cm); Weight: 45 lbs (20.4 Kg)
*INPUT POWER*	100 – 120 Vac, 50/60 Hz
*OUTPUT VOLTAGES*	DC: 10 – 200 Vdc AC: 10 – 140 Vac
*OUTPUT CURRENTS*	9 A max @ 140 Vac (20 min on, 30 min off) 9 A max @ 140 Vdc (2 sec), 2 A (continuous)
*DISPLAY*	Back-lit LCD screen (128 x 64 pixels); viewable in bright light and low light levels
*SAFETY*	Designed to meet the UL 61010A-1 and CAN/CSA C22.2 No 1010.1-92 standards
*TEMPERATURE*	Operating: -10° to 50° C (15°F to +122° F); Storage: -30° C to 70° C (-22°F to +158° F)
*HUMIDITY*	90% RH @ 40°C (104°F) non-condensing
*ALTITUDE*	2,000 m (6,562 ft) to full safety specifications
*CABLES*	Power cord, ground cable, 10′ (3.05m) test leads
*OPTIONS*	Shipping case
*WARRANTY*	One year on parts and labor
Specifications are valid at nominal voltage and ambient temperature of +25˚C (+77˚F). Last updated on February 13, 2009