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TTRM 302

TTRM 302

SCOPE introduces state of the art precision three phase Transformer Turns Ratio Meter (TTRM ) designed for fi eld testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. Along with turns ratio, this light weight and reliable instrument measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single as well as three phase transformers in charged switchyard condition. The instrument has facility to automatically detect vector group of all majority configurations available. The diff erant AC voltage selection off ers high accuracy in measurement.

Instrument has in-built TFT display with touch screen and thermal printer. The user friendly, simple instrument makes the testing more easy. With the touch keypad it is possible to enter required DUT information. The ratio results of all the phases are displayed in tabular form with % error. Internal non volatile memory gives the provision of storing test results. Further data can be downloaded to PC or copied to memory stick through USB port provided. The CTrans-TTRM software, gives the flexibility to download the stored results to PC and do the further analysis and report generation.

Features

  • Diff erent voltage ranges provided for more accurate results
  • 5.7” TFT display with touch screen and simple menus to operate TTRM
  • Facility to configure transformer ID and details
  • Automatic OLTC operation for tap change
  • Date and time stamping to results
  • In-build memory to store the test results
  • Thermal printer to take quick print out for record
  • Ethernet port for PC interface to transfer records to PC Software
  • Mass storage device (USB 2.0) interface for copying records in pen drive
  • Lightweight,portable instrument household in rugged moulded case

 

Specifications

  Parameter Display      Range     Resolution Accuracy
1 Turns Ratio 1.9999 : 1 0.8-20000 : 1 5 Digit

0.8 - 100: ± 0.05% @ 10V

101 - 1000: ± 0.05% @ 10V

1001 - 1500: ± 0.05% @ 10V

1501 - 2000: ± 0.10% @ 10V

2001 - 4000: ± 0.20% @ 10V

 

0.8 - 100: ± 0.05% @ 40V

101 - 1000: ± 0.05% @ 40V

1001 - 1500: ± 0.05% @ 40V

1501 - 2000: ± 0.05% @ 40V

2001 - 4000: ± 0.05% @ 40V

4001 - 13000: ± 0.25% @ 40V

 

0.8 - 100: ± 0.03% @ 100V

101 - 1000: ± 0.05% @ 100V

1001 - 1500: ± 0.05% @ 100V

1501 - 2000: ± 0.05% @ 100V

2001 - 4000: ± 0.05% @ 100V

2001 - 4000: ± 0.05% @ 100V

13001 - 20000: ± 0.20% @ 100V

2 Excitation Current 0.1mA to 1.999A 0-2A 0.1mA ± 1mA
3 Phase Deviation 0.05 Deg to +179.95 Deg ± 180 Deg 0.05 Deg ± 0.05 Deg

 

Parameters TTRM 302
No of channels Three HV channels and three LV channels
Test Voltages 10V, 40V and 100V AC selectable voltages
Measurements Ratio, Ratio error, Phase angle deviation, Excitation current, vector group
OLTC Control Raise and Lower control to operate OLTC
Test Results Display (TFT) display, Thermal Printer.
Test Leads Suitable to test EHV Transformers
Paper Thermal, 58 mm wide roll form
Memory Inbuilt memory, can store 1000 records, with date and time stamping. USB port to copy record in pen drive
Power 90V – 265V, 50/60 Hz, 100VA approx.
Communication Port Ethernet port.
Housing Fitted in moulded case
Environment 0 to 50 C, 95% RH (non-condensing) Electrical noise normally found in charged EHV switchyards
Dimensions 435 X 315X 175 mm. (Max.)
Weight 10 Kg Approx
Read 2418 times Last modified on Wednesday, 11 January 2017 09:49
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