True 3-Phase Automatic Transformer Turns Ratio Tester
True 3-Phase Automatic Transformer Turns Ratio Tester

True 3-Phase Automatic Transformer Turns Ratio Tester

AC DC Hipot Test Set - 100KV HVTS-HP Mobile High-Power High-Voltage AC-DC Hipot Test System
Capacitor Voltage Transformer (CVT) Turns Ratio Tester Capacitor Voltage Transformer (CVT) Turns Ratio Tester

$18,283.07

Manufacturer: Vanguard Instrument

Model: Tri-Phase

P/N: 9008-UC

SKU: AMA-5127-08
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Description

True 3-Phase Automatic Transformer Turns Ratio Tester

True 3-Phase Automatic Transformer Turns Ratio Tester

Description of True 3-Phase Automatic Transformer Turns Ratio Tester

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

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).
Last updated on February 16, 2009

Transformer Test Voltages

The Tri-Phase generates three-phase transformer test voltages from a single-phase AC or DC power source. Three test voltages (8 Vac, 40 Vac, 100 Vac) allow the Tri-Phase to test CT’s and PT’s, as well as power transformers.

Auto-Detect Transformer Configuration

The Tri-Phase can automatically detect 130 specific vector groups for different transformer types defined by ANSI, CEI/IEC, and Australian standards, as well as phase-shifting transformers.

Internal Test Record Storage

Up to 112 test records can be stored in the Tri-Phases’s Flash EEPROM. Each test record may contain up to 99 turns-ratio, excitation current, phase angle, and nameplate voltage readings. Test records can be recalled locally or transferred to a PC via the available interfaces (RS-232C port, USB port, USB Flash drive port).

Transformer Test Plans

The Tri-Phase can store up to 128 transformer test-plans in its Flash EEPROM. A test-plan is comprised of the transformer nameplate voltages for each tap setting. The calculated turns-ratio based on the nameplate voltages is compared with the measured turns-ratio to derive the percentage error and Pass/Fail results. By recalling a test plan, a transformer can be quickly tested and turns-ratio Pass/Fail reports can be reviewed. Test plans can be created with the PC software and can be transferred to the Tri-Phase via the available interfaces (RS-232C port, USB port, USB Flash drive port).

User Interface

The Tri-Phase features a back-lit LCD screen (128 x 64 pixels) that is viewable in both bright sunlight and low-light levels. The test results screen displays the transformer turns-ratio, excitation current, phase angle, and percentage error. The unit is controlled via a rugged, 16-key, membrane keypad and a digital rotary switch.

Computer Interface

The Tri-Phase can be computer-controlled via the RS-232C or USB port using the Windows®-based Transformer Turns-Ratio Analyzer Series 2 (TTRA S2) software provided with each Tri-Phase. The software can be used to run a test and to store test results on a PC. Test results can also be exported to Excel, PDF, and XML formats for further analysis.

Built-in Thermal Printer

The Tri-Phase features a convenient built-in 4.5” wide thermal printer that can be used to print test results.
Transformer Load Tap Changer Control
Voltage regulator or LTC tap positions can be changed remotely using the unit’s built-in transformer load tap changer. This feature eliminates the need to manually raise or lower tap positions from the transformer control panel.

Input Power Sources

The Tri-Phase can be powered from a single-phase 100-240 Vac 50/60 Hz power source. A built-in safety ground detection circuit can detect and display any ground fault problems with the AC input source.

USB Flash Drive Interface

A built-in USB Flash drive interface provides a convenient method for transferring test plans and test records to or from a USB Flash drive. The user can store up to 999 transformer test plans and test records on a USB Flash drive, and the supplied PC software can be used to view the test records.

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