Vanguard ATRT-03 S2 Three-Phase Transformer Turns Ratio Tester

Manufacturer part number: ATRT-03-S2

The ATRT-03 S2 can be used as a standalone unit or can be computer-controlled.

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Overview
Specifications
Documentation
Standards
Video

Key Features and Functions

The Vanguard Instruments ATRT-03 S2 is the third generation, microprocessor-based, automatic, three phase, transformer turns-ratio tester. This light weight, rugged, portable unit is designed for transformer testing at utility power substations.

The ATRT-03 S2 determines the transformer turns ratio using the IEEE C57.12.90 measurement method. The ATRT-03 S2 outputs an excitation test voltage to the transformer primary windings. The induced secondary voltage is sensed and the transformer turns ratio is calculated. The ATRT-03 S2 is capable of measuring turns ratios from 0.8 to 15,000. The transformer turns-ratio, excitation current, and phase angle readings are displayed on the large LCD. The automatic transformer type detection feature allows the ATRT-03 S2 to detect and test 130 transformer types defined by ANSI, CEI/IEC and Australian standards.

Ratio range: 0.8 ¬ 15,000 : 1
3 test voltages: 8Vac, 40Vac, and 100Vac
Phase angle and excitation current measurement
RS-232C and USB PC interfaces
Optional 4.5” wide thermal printer

*TYPE*	Portable, lightweight, automatic, 3-phase transformer turns-ratio meter
*PHYSICAL SPECIFICATIONS*	18”W x 7”H x 15”D (45.7 cm x 17.8 cm x 38.1 cm); Weight: 20 lbs (9.0 kg)
*OPERATING VOLTAGE*	100 – 240 Vac, 50/60 Hz
*MEASUREMENT METHOD*	ANSI/IEEE C57.12.90
*TURNS-RATIO MEASURING RANGE*	0.8 – 15,000
*TURNS-RATIO ACCURACY*	0.8 – 1,999: ±0.1%, 2,000 – 3,999: ±0.25%. 4,000 – 15,000: ±1% @ 8 Vac 0.8 – 1,999: ±0.1%, 2,000 – 3,999: ±0.20%. 4,000 – 15,000: ±1% @ 40 Vac 0.8 – 1,999: ±0.1%, 2,000 – 3,999: ±0.15%. 4,000 – 15,000: ±1% @ 100 Vac
*TEST VOLTAGES*	8 Vac @ 1Amp, 40 Vac @ 0.2 Amp, 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 (Optional)
*COMPUTER INTERFACES*	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 with purchase price
*INTERNAL TEST RECORD STORAGE*	stores 112 complete transformer test records, each record holding the test record header and up to 99 readings
*INTERNAL TEST PLAN STORAGE*	Can store 128 transformer test plans internally. 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, 2 Amps
*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)
*CABLES*	One 15-foot Single-phase set, One 15-foot 3-phase set, One 25-foot extension set, One safety ground, One USB, One RS-232C, cable bag
*OPTIONS*	Transportation Case

Data Sheet

UL 61010A-1
CAN/CSA C22.2 No. 1010.1-92 standards

Description

Key Features and Functions

Ratio range: 0.8 ¬ 15,000 : 1
3 test voltages: 8Vac, 40Vac, and 100Vac
Phase angle and excitation current measurement
RS-232C and USB PC interfaces
Optional 4.5” wide thermal printer

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