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CVT-765 |
Capacitor Voltage Transformer Tester |
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.
The Vanguard CVT-765 is a microprocessor-based, single phase, automatic, transformer turns-ratio tester. This portable test unit is specifically designed to measure the turns-ratios of Capacitor Voltage Transformers (CVT’s).
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).
