Scope TTRM 302
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Scope TTRM 302
TTRM 302
SCOPE introduces state of the art precision three phase Transformer Turns Ratio Meter (TTRM ) designed for field 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 differant AC voltage selection offers 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 C Trans-TTRM software, gives the flexibility to download the stored results to PC and do the further analysis and report generation.
FEATURES
- Different voltage ranges provided for more accurate results
- 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
- Light weight, 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 4001-13000: ± 0.15% @ 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 and Magnetic balance (optional) |
| OLTC Control | Raise and Lower control to operate OLTC |
| Test Results Display | 5.7” touch-screen (TFT) display, thermal printer |
| Test Leads | Suitable to test EHV Transformers |
| Paper | Thermal, 58 mm wide roll form |
| Memory | Up to 50000 records inbuilt memory, with date and time stamping |
| Power | (110V ± 15%) / (60Hz ± 10%) OR (230V ± 15%) / (50Hz ± 10%), 75VA. |
| Communication Port | Ethernet port for PC Communication, USB port for data downloading to pen-drive |
| Housing | IP 65 rated moulded case |
| Operating Environment | -20°C to +55°C, 95%RH (non-condensing) |
| Storage Environment | -40°C to +60°C, 95%RH (non-condensing) |
| Dimensions | 435 X 315X 175 mm. (Max.) |
| Weight | 10 Kg Approx |