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Common
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Standard Features
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1ø to 3ø programmable (TW 5250 only)
WaveForm trigger output (1 M Load Drive)
SYNC OUT
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Programmed Settings
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The Sync out selections are:
Even Cycle A phase (on)
None (off)
When change in programmed parameters occur (event)
External Summing Node 0 to 5 Vrms provides 0 to 100% output
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Interface
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IEEE-488.2 interface and RS-232
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Protocol
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SCPI protocol
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Certifications
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CE marked and FCC compliant
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Calibration Interval
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1 year
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Input
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Voltage Ranges
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Factory configured 187 to 264 Vrms, 3ø L-L (3 wire). A chassis ground is also required.
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Power Factor
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0.6 (0.99 with input PFC option, 0.35 for European rectifier input)
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Frequency Range
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47 to 63 Hz
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Efficiency
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70% min, at full load
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Ride Through
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3 ms, min for rectifier input; 10 ms, min, with PFC option
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Output
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Power
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1750 VA, 3500 VA or 5250 VA
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Phase
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1750 VA, 1 phase; 3500 VA, 1 or 2 phase; 5250 VA, 1, 2 or 3 phase
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AC Output Voltage
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0 to 156 Vrms L-N low range
0 to 312 Vrms L-N high range
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DC Output Voltage
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0 to 207V low range
0 to 414V high range
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Current Per Phase
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13A to 135V in 156V range; 6.5A to 270V in 312V range (per 1750 VA module); 16A to 115V in low range; 8A to 230V in high range (per 1850Va module)
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Power Factor of Load
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0 lagging to 0 leading
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Crest Factor
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4.0 (peak output current to rms output current)
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Frequency Range
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45 Hz to 500 Hz
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Max Total Harmonic Distortion
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0.3% max (Full Linear Load or No Load)
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AC Noise Level
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60 dB rms below full output voltage
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Amplitude Stability With Remote Sense
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±0.1% of full scale over 24 hours at constant line, load and temperature
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Line Regulation
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0.05% of full scale for a ± 10% change in line voltages
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Load Regulation
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0.15% of full scale
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Voltage Accuracy
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± 0.1% of full scale
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Voltage Resolution
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0.03% of full scale
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Frequency Resolution
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0.1 Hz
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Phase Accuracy
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Phase-to-Phase Balanced Linear Resistive Load: ±1°
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Phase Angle Resolution
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0.1°
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Remote Output Voltage Sense
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5 Vrms total lead drop, max
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Environmental
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Operating Temperature
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0°C to 45°C (32°F to 113°F)
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Storage Temperature
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-40°C to 70°C (-40°F to 158°F)
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Cooling
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Air is drawn in primarily from the front, but also from the top, bottom, and sides and exhausted through the rear.
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Humidity (Non-condensing)
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0 to 85%, 31°C (88°F); derate to 50% at 40°C (104°F)
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Altitude
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Operating 6,500 ft. Non-operating 40,000 ft
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Physical
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Dimensions
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Width: 19"" (483 mm)
Height: 8.75"" (222 mm)
Depth: 24.1"" (613 mm)
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Weight
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TW 1750 - 60 lbs. (27.3 kg), TW 3500 - 83 lbs. (37.7 kg), TW 5250 - 108 lbs. (49 kg)
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Shipping Weight - US
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TW 1750 - 130 lbs. (59 kg), TW 3500 -153 lbs. (69.5 kg), TW 5250 - 178 lbs. (80.9 kg)
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Measurement Accuracy All at 25° ± 5°C
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Power
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2.5% of full scale
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Voltage
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0.3% of full scale + 0.2% of reading
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Shipping Weight
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12.7 lbs. (5.8 kg)
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Current
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0.3% of full scale + 0.5% of reading
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Apparent Power
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2.5% for output > 200 VA
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Frequency
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0.25%
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Phase
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0.5°
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Protection and Safety
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Overvoltage Shutdown
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Programmable for 20V to 255V peak, 156V range; 40V to 510V peak, 312V range
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Programmable Current Limit Shutdown
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Settable to 1% of range (0.5A to 13A for 156V range; 0.5A to 6.5A for 312V range)
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Programmable Current Limit
with Timed Shutdown
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Settable to 1% for range; the timeout is settable from 10 ms to 10s
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Programmable Constant Current
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Settable to 1% of range (0.5A to 13A for 156V range; 0.5A to 6.5A for 312V range). For all current accuracies, add ± 1.5%/ kHz above 500 Hz. For paralleled amplifiers, add ± 1%.
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Over temperature Shutdown
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Automatic, not programmable
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