The CBCT is a variable voltage DC power supply designed specifically to test substation circuit-breaker Open and Close coils. The CBCT uses the substation’s DC power supply to electronically generate a programmable output voltage from 5% to 95% of the source voltage. The CBCT can maintain up to an 80A test current while maintaining 2% or better voltage regulation during the circuit breaker coil operation.
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One continuous and one pulse DC output
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Back-lit LCD screen (20 characters by 4 lines)
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Output voltage programmable from 5% to 95% of the input voltage
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Built-in, single channel timer
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CBCT
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Technical Specifications
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TYPE
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Programmable DC Power Supply
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PHYSICAL SPECIFICATIONS
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19”W x 7”H x 15”D, (48 cm x 17 cm x 38 cm); Weight: 25 lbs (11.3 kg)
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INPUT VOLTAGE
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20 – 300 Vdc, 20A fuse
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OUTPUT VOLTAGE
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5% – 95% of input voltage with 2% regulation at max current (up to 80A)
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OUTPUT VOLTAGE CHANNELS
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One continuous and one pulse DC output
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OUTPUT VOLTAGE PROTECTION
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Shutdown if current exceeds 80A or if current drawing time exceeds 500 ms @ 80A
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VOLT METER RANGE
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Input/output meters, 0 – 300 Vdc; Accuracy: 1% of reading, ±0.2V
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TIMER DISPLAY RANGE
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0.0000 – 999.999 seconds; Accuracy: 0.01%, ±0.5 ms
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TIMER START INPUT
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Internal (coil initiation), wet-contact input (20 – 240 Vac/dc), or dry-contact input (1 – 200 ohms)
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TIMER STOP INPUT
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Wet-contact (20 – 240 Vac/dc) or dry-contact (1 – 200 ohms)
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DISPLAY
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Back-lit LCD screen (20 characters by 4 lines); viewable in both bright sunlight and low-light levels
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SAFETY
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Designed to meet UL 6101A-1 and CAN/CSA C22.2 No 1010.1-92 standards
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ENVIRONMENT
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Operating: -10°C to 50°C (+15°F to +122°F); Storage: -30°C to70°C (-22°F to +158°F)
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CABLES
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Two 6-foot (#8 AWG) DC cable sets, Two 10-foot timer cable sets, One ground cable, one cable bag
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OPTIONS
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Transportation case
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WARRANTY
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One year on parts and labor
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Specifications are valid at nominal voltage and ambient temperature of +25?C (+77?F).
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