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Vanguard’s new TRI-PHASE is a true 3-phase transformer turns ratio tester designed to conform to the IEEE C57.12.90 measurement method. The TRI-PHASE outputs a 3-phase excitation test voltage to the three transformer primary windings. The induced 3-phase secondary voltages are sensed and the transformer turns ratio is calculated. The TRI-PHASE is capable of measuring turns ratios from 0.8 to 15,000. The 3-phase excitation current, phase angle readings along with the turns ratios are displayed on the built-in LCD. Since a 3-phase voltage is used to excite the transformer windings, the TRI-PHASE can detect and measure turns ratios of any transformer type. The TRI-PHASETM can easily measure the turns ratio of phase-shifting transformers where other 3-phase transformer ratio testers cannot.

• Generates its own 3-phase transformer test voltage from single-phase AC or DC Power input
• Capable of detecting 130 different 3-phase transformer types defined by ANSI, IEC, and Australian standards plus phase shifting transformers
• 64 x 128 graphic LCD screen
• Store up to 128 transformer test-plans in Flash EEPROM
• Store up to 112 test records in Flash EEPROM
• Built-in USB Flash Drive Interface
• Computer Interface (RS-232C and USB Port)
• 4.5 Inch thermal printer
• Built-in transformer load tap changer
• Powered from a single phase 100-264 Vac 50/60 Hz

Tri-Phase	Cables
Cable Part Number [8000-0005] USB Cable [ 6' (1.83m) ] 8000-0005 [8000-0006] RS-232C Cable [ 6' (1.83m) ] 8000-0006 [8000-0009] H Single Phase Cable [ 15' (4.57m) ] 8000-0009 [8000-0010] H Extension Cable [ 25' (7.62m) ] 8000-0010 [8000-0011] X Single Phase Cable [ 15' (4.57m) ] 8000-0011 [8000-0012] X Extension Cable [ 25' (7.62m) ] 8000-0012 [8000-0013] H 3-Phase Cable [ 15' (4.57m) ] 8000-0013 [8000-0014] X 3-Phase Cable [ 15' (4.57m) ] 8000-0014 [8000-0015] LTC Control Cable [ 15' (4.57m) ] 8000-0015 [8000-0016] Power + Ground Combination Cable 8000-0016

Tri-Phase	Technical Specifications
TYPE True three-phase transformer turns-ratio tester PHYSICAL SPECIFICATIONS 21”W x 9”H x 17”D (53 cm x 24 cm x 43 cm); Weight: 35 lbs (15.8 Kg) INPUT POWER 3 amps, 100 – 240 Vac, 50/60 Hz MEASUREMENT METHOD ANSI/IEEE C57.12.90 TURNS-RATIO MEASURING RANGE 0.8 – 15,000 (5-digit resolution) TURNS-RATIO ACCURACY 0.8 – 999: ±0.1%, 1000 – 1599: ±0.2%, 1600 – 9999: ±1%, 10,000 – 15,000: 1.5% @ 8 Vac 0.8 – 999: ±0.1%, 1000 – 1599: ±0.2%, 1600 – 9999: ±1%, 10,000 – 15,000: 1.5% @ 40 Vac 0.8 – 999: ±0.1%, 1000 – 1599: ±0.2%, 1600 – 9999: ±1%, 10,000 – 15,000: 1.5% @ 100 Vac TEST VOLTAGES Three-phase, 8 Vac @ 1 Amp, 40 Vac @ 0.2 Amps, 100 Vac @ 0.1 Amp EXCITATION CURRENT READING RANGE 0 – 1 Ampere; Accuracy: ±0.1 mA, ±2% of reading (±1 mA) PHASE ANGLE MEASUREMENT 0 – 360 degrees; Accuracy: ± 0.2 degree (± 1 digit) DISPLAY Back-lit LCD screen (64 x 128 dot graphic display); Viewable in bright sunlight and low-light levels PRINTER Built-in 4.5-inch wide thermal printer EXTERNAL DATA STORAGE One USB Flash drive interface port; Up to 999 transformer test records can be stored on a USB Flash drive (not included). COMPUTER INTERFACES One RS-232C port, One USB port PC SOFTWARE Windows? XP/Vista-based Transformer Turns-Ratio Analyzer application is included with purchase price INTERNAL TEST RECORD STORAGE Stores up to 112 transformer test records. Each record holds the test record header and up to 33 readings. INTERNAL TEST PLAN STORAGE Stores up to 128 transformer test plans. Test plans can be transferred to the unit from the PC via the RS-232C/USB port or via the USB Flash drive interface LOAD TAP CHANGER CONTACT 240 Vac, 1 Amp SAFETY Designed to meet UL 61010A-1 and CAN/CSA C22.2 No. 1010.1-92 standards ENVIRONMENT Operating: -10° to 50° C (15°F to +122° F); Storage: -30° C to 70° C (-22°F to +158° F) CABLES One 15-foot single-phase set, One 15-foot three-phase set, One 25- foot extension set, One ground cable, One USB cable, One RS-232C cable, power cord, cable bag OPTIONS Transportation case WARRANTY One year on parts and labor Specifications are valid at nominal voltage and ambient temperature of +25?C (+77?F).