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Home | Products | Haefely-Hipotronics | Transformer Test Equipment | TTR 2796 Transformer Turns Ratio Meter

 

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Model TTR 2796 Transformer Turns Ratio Meter - Overview
 

Overview
A close collaboration with major transformer manufacturers has led to the new 2796 Transformer Turns Ratio Meter. The Transformer Test Equipment instrument combines mobility and user friendly handling with unmatched accuracy of up to 0.03%. The higher test voltage of 250 volts, together with the higher precision, assures authentic results especially on large power transformers. Advanced analysis features like trending allow the user to detect problems at an early stage.
 

Model TTR 2796 Transformer Turns Ratio Meter

 

Features

  • Fully automated three-phase measurement of turns ratio, voltage ratio, phase displacement, and excitation current.
  • Better transformer excitation due to higher test voltage.
  • Highest accuracy on the market - up to 0.03%.
  • Ratios of up to 50,000 can be measured.
  • Measurement of phase displacement transformers.
  • Quick setup with intuitive guide-through user interface.
  • Automatic Winding Connection Identification (AWCI) and automatic vector group detection supports quick and easy operation.
  • Remote tap changer switch.
  • Safety connection control feature: Proofs test setup before Appling regular test voltage.
  • Light-weight, rugged and compact design.
  • Built-in printer.
  • Free external application software allows data exchange, analysis and report generation.

Measurement Range and Accuracy

Ratio

at 250 Volts

at 100 Volts

at 25 Volts

0.8 to 100

0.03%

0.05%

0.05%

101 to 1000

0.05%

0.05%

0.05%

1001 to 2000

0.05%

0.05%

0.10%

2001 to 4000

0.05%

0.05%

0.20%

4001 to 13000

0.15%

0.25%

n/a

13001 to 20000

0.15%

n/a

n/a

20001 to 50000

0.60%

n/a

n/a

 

Specification

Measurement

Range

Resolution

Accuracy

Excitation Current

0 to 1A

0.1mA

1mA

Phase Angle

180

0.01

0.05

 

Please Note: at excitation voltage, values valid after a warm-up period of 30 minutes

 

Environmental Specifications

Operating Temperature

-10C to 55C

Storage Temperature

-20C to 70C

Relative Humidity

5% to 95% non-condensing

 

General Specifications

Display

5.2-inch dot matrix LCD, 240 x 128 module with backlight

Power Supply

95 Volts to 240 Volts AC. 50/60Hz, 1.3A maximum

Excitation Voltage

2.5V, 25V, 100V, and 250V; Automatic or Manual selectable

Excitation Current

1 Amp maximum

Memory

Stores up to 100 complete test results / test setups

Printer

Thermal strip printer, paper width 58mm

Interfaces

Computer: USB 2.0 client (with supplied adapter)
Tap Changer: 3-pole contact, -5C guaranteed

Dimensions

41cm (L) x 31cm (W) x 17cm (D)

Weight

8.8 kg excluding cables

 

Scope of Supply

Qty 1

TTR 2796 instrument in shell case, and cable bag

Qty 2

3-phase cable sets (5 meter spider and two sets of clamps)

Qty 2

Phase extension cable sets (10 meters)

Qty 1

Remote control

Qty 1

Data storage and report generation software

Qty 1

USB cable for remote operation

Qty 1

Mains cable

Qty 1

Operator manual

Qty 1

Calibration certificate
 

Ordering Information

Haefely Hipotronics TTR 2796

Transformer Turns Ratio Meter (includes Scope of Supply as above)

 

Optional Accessories

Haefely Hipotronics APS

Software Arbitrary Phase Shift - allows the TTR 2796 measure turns and voltage ratio, phase displacement and excitation current of special-type transformers with arbitrary phase shifts.

Haefely Hipotronics 2796/Tap

External Tap Test Start Switch - is used for convenient remote tap changer testing.

Haefely Hipotronics 2796/10

Additional two 3-phase extension cables (10 meters) - Used to extend the reach of the basic connection set by another 10 meters. (the final length results in total 25 meters (10+10_5) with this additional cable set)

   

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Macey's Electrical Pty. Ltd.
ABN 17 344 601 468
Unit 1, 49 Gavenlock Road, Tuggerah, NSW Australia 2259
Phone: +61 2 4353 4644    Mobile: 0412 678 925
Email: sales@maceyselectrical.com.au