Vanguard Instruments EZCT-1200 for Rent
Current Transformer Test Set 1200 VAC

Order #: EZCT-1200-RENT1

Mfg #: EZCT-1200-RENT1

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Vanguard Instruments EZCT-1200 for Rent

Current Transformer Test Set 1200 VAC

Order #: EZCT-1200-RENT1

Mfg #: EZCT-1200-RENT1

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This product is available for shipping to the United States, Canada, and Puerto Rico only.

Product Highlights

The EZCT is a microprocessor-based, current-transformer test set. This rugged and portable test set can perform the current transformer (CT) excitation, CT current-ratio, and winding polarity tests. Current transformers can be tested in their field-mounted configuration, eliminating the need to remove bushings or current transformers from the host equipment.

Excitation Test

The CT excitation test is performed using the ANSI/IEEE C57.13.1, IEC 60044-1 test method. The EZCT applies an AC variable test voltage (up to 1,200 Vac) to the CT’s secondary windings. The EZCT records and displays the test voltage and excitation current applied to the current transformer during the excitation test. Once tests are completed, up to 10 excitation curves and knee-point voltages of the tests can be plotted on the built-in thermal printer. IEEE-30, IEEE-45, ANSI/IEC 60044-1 (10/50) knee point voltages are also calculated and printed on the test report.

CT Ratio and Polarity Tests

The EZCT determines the CT current-ratio using the ANSI/IEEE C57.12.90 measurement method. A test voltage is applied on the CT’s X terminals and the induced voltage is measured across the CT’s H1 and H2 terminals. The current-ratio is displayed on the screen and stored in memory. The current-ratio measuring range is from 0.8 to 5,000. Winding polarity is displayed as a “+” sign (in-phase) or “-” sign (out-of-phase) and is annotated with the phase angle in degrees.

  • 16.8”W x 12.6”H x 12”D (42.7 cm x 32 cm x 26.9 cm); Weight: 55 lbs (25 Kg)
  • 100 – 120 Vac or 200 – 240 Vac (factory pre-set), 50/60 Hz
  • ANSI/IEEE C57.12.90, IEC 60044-1 and ANSI/IEEE C57.13.1
  • 0 – 50 Vac @ 2A max; 0 – 200 Vac @ 2A max; 0 – 1200 Vac @ 1.5A max (5 min on, 10 min off)
  • 0 – 1,250 Vac; Accuracy: ±1.0% of reading, ±0.5 volt
  • 0 – 10A; Accuracy: ±1.0% of reading, ±0.01A
  • 0.8 – 99: ±0.5%, 100 – 999: ±1.0%, 1,000 – 5,000: ±2%
  • 0 – 360 degrees; Accuracy: ±1.0 degree
  • Back-lit LCD Screen (20 characters by 4 lines); viewable in bright sunlight and low-light levels
  • Built-in 4.5-inch wide thermal printer
  • One RS-232C port, One USB port
  • Windows® XP/Vista-based software is included with purchase price
  • Stores 128 test records. Each test record may contain up to 10 excitation and ratio data sets
  • Stores 10 test header records
  • Designed to meet UL 61010A-1 and CAN/CSA C22.2 No. 1010.1-92 standards
  • Operating: -10° to 50° C (15°F to +122° F); Storage: -30° C to 70° C (-22°F to +158° F)
  • 90% RH @ 40°C (104°F) non-condensing
  • 2,000m (6,562 ft) to full safety specifications
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