The PATTR-03A determines the transformer turns-ratio using the IEEE C57.12.90 measurement method. The PATTR-03A generates and outputs an excitation test voltage to the transformer’s three primary windings. The induced secondary voltage is sensed and the transformer turns ratio is calculated. The PATTR-03A can measure turns-ratios from 0.8 to 15,000. The transformer turnsratio, excitation current, and phase-angle readings are displayed on the unit’s LCD screen. The built-in transformer type detection feature allows the PATTR-03A to detect and test 130 transformer types defined by ANSI, CEI/IEC and Australian standards.
OPERATING VOLTAGE | 100-240 VAC, 50/60 HZ |
BATTERIES | Two lead acid batteries (12 V, 2 A) provide up to 3 hours of operation |
MEASUREMENT METHOD | ANSI/IEEE C57.12.90 |
TURNS-RATIO MEASURING RANGE | 0.8 – 15,000 |
TURNS-RATIO ACCURACY | 0.8 – 1999: ±0.1%, 2,000 – 3,999: ±0.25%, 4,000 – 15,000: ±1% @ 8 VAC 0.8 – 1999: ±0.1%, 2,000 – 3,999: ±0.20%, 4,000 – 15,000: ±1% @ 40 VAC 0.8 – 1999: ±0.1%, 2,000 – 3,999: ±0.15%, 4,000 – 15,000: ±1% @ 100 VAC |
TEST VOLTAGES | 8 VAC @ 350 mA, 40 VAC @ 70 mA, 100 VAC @ 20 mA |
EXCITATION CURRENT READING RANGE |
0 -2 A; Accuracy: ±0.1 mA, ±2% of reading (±1 mA) |
PHASE-ANGLE MEASUREMENT | 0- 360°; Accuracy: ±0.2° ( ±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 |
COMPUTER INTERFACE | One RS-232C port, one USB port |
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) |
PC SOFTWARE | Windows® XP/Vista-based Transformer Turns-Ratio Analyzer application is included |
INTERNAL TEST RECORD STORAGE |
The unit can store 112 transformer test records. Each record holds the test record header and up to 33 readings. |
INTERNAL TEST PLAN STORAGE | The unit can store 128 transformer test plans. Test plans can be transferred to the unit from the PC via the RS232C/USB port or via the USB Flash drive interface |
LOAD TAP CHANGER CONTACT | 240 VAC, 1A |
SAFETY | Designed to meet UL 61010A-1 and CAN/CSA C22.2 No. 1010.1-92 standards |
ENVIRONMENT | Operating: -10° to 50° C (15° to +122° F); Storage: -30° C to 70° C (-22° to +158° F) |
HUMIDITY | 90% RH @ 40°C (104°F) non-condensing |
ALTITUDE | 2000 m (6,562’) to full safety specifications |
DIMENSIONS & WEIGHT | 20”(508 mm)L x 15½”(394 mm)W x 7½”(191 mm)H; Weight: 27 lbs (12 kg) |
CABLES INCLUDED | One 15’ (4.5 m) single-phase set, One 15’ (4.5 m) 3-phase set, One 25’ (7.6 m) extension set, One safety ground, One USB, One RS-232, One LTC cable, One cable-carrying duffel bag |
Comments are closed.