美國vanguard CVT-765電容式電壓互感器測試儀

The CVT-765 determines the transformer turns-ratio using the IEEE C57.12.90 measuring method. It uses a 7440 Vac excitation voltage source to accurately measure the turns-ratio of Capacitor Voltage Transformers with a rating of up to 765KV. The transformer turns-ratio is determined by precisely measuring the voltages across the unloaded transformer windings.

• Standalone or computer-controlled
• Can test CVT's rated up to 765 KV
• Displays turns-ratios from 75-15,000
• Calculates turns-ratio percentage error when nameplate voltages are provided

CVT-765	Cables
Cable Part Number [8000-0016] Power + Ground Combination Cable 8000-0016 [8000-0113] X Cable [ 15' (4.57m) ] 8000-0113 [8000-0114] H Cable [ 50' (15.24m) ] 8000-0114

CVT-765	Technical Specifications
TYPE Portable, automatic, CVT turns-ratio tester PHYSICAL SPECIFICATIONS 19.5" x 12" x 17" D (49.5 cm x 30.5 cm x 43.2 cm) INPUT POWER 100 – 120 Vac or 220 – 240 Vac (selectable), 50/60 Hz MEASUREMENT METHOD ANSI/IEEE C57.12.90 RATIO-MEASURING RANGE 75 – 15,000 (5 digit resolution) TURNS-RATIO ACCURACY 75 - 4,999: ±0.25%, 5,000 – 9,999: ±0.35%, 10,000 - 15,000: ±0.5% PHASE ANGLE READING 0-360 degrees, ±0.2 degree accuracy POLARITY In-Phase or Out-of-Phase indication TEST VOLTAGE 7440Vac @ 50ma DISPLAY Back-lit LCD (128 x 64 pixels), viewable in direct sunlight and low light levels COMPUTER INTERFACE RS-232C PC SOFTWARE Windows XP/Vista/7 Transformer Analysis Software (included with purchase) INTERNAL TEST RECORD STORAGE 128 test records. Each record contains 33 readings. EXTERNAL TEST RECORD STORAGE Up to 999 test records on external USB Flash drive. SAFETY Designed to meet IEC 61010A-1 and CAN/CSA C22.2 No. 1010.1-92 Standards ENVIRONMENT Operating: -10oC to 50oC (15oF to +122oF) Storage: (-30oC to 70oC (-22oF to +158oF) HUMIDITY (MAX) 90% RH @ 40? C (104? F) non-condensing ALTITUDE (MAX) 2000m (6562 ft) to full safety specifications CABLES One 50 ft. H cable, one 15 ft. X cable, one power cable, one safety ground cable WARRANTY One year on parts and labor Specifications are valid at nominal voltage and ambient temperature of +25?C (+77?F).