The Three Phase Reference Standard Meter (TPRS-1107) is portable equipment from SANDS. The main objective of this device is to calibrate the errors in three-phase and single-phase energy meters i.e. the meter under test (MUT). The TPRS supports both static and electro-mechanical types of meters. It can also be used to compute the voltage, current, energy, power factor etc of the meter under test. It has an LCD display, an alphanumeric keypad that makes it easy for the user to operate the TPRS. It can be interfaced with the PC for data analysis. It has the capability of storing up to 8000 test results.
| TPRS-1107-H | TPRS-1107-L | TPRS-1107-LH | TPRS-1107-H+ | TPRS-1107-L+ | TPRS-1107-LH+ | |
|---|---|---|---|---|---|---|
| Applications | HT Meters | LT-CT operated meters | HT Meters | HT Meters | LT-CT operated meters | HT Meters |
| LT-Whole current meters | LT-CT operated meters | LT-Whole current meters | LT-CT operated meters | |||
| LT-Whole current meters | CT Ratio test forLT-CT operated meters | LT-Whole current meters | ||||
| CT Ratio test for LT-CT operated meters | ||||||
| Direct Mode | ||||||
| Current | 10mA-10A | 10mA-10A | 10mA-10A | NA | NA | NA |
| Accuracy | 0.2S / 0.2 | 0.2S / 0.2 | 0.2S / 0.2 | |||
| Clamp-on Mode/Primary current Measurement | ||||||
| Current | NA | 500mA-100A* | 500mA-100A* | 14 | 10 | 10 |
| Accuracy | 0.5S / 0.5 / 0.2S / 0.2 | 0.5S / 0.5 /0.2S/0.2 | 14 | 10 | 10 | |
| Secondary Current Measurement | space | |||||
| Current | NA | NA | NA | 50mA-10A | 50mA-10A | 50mA-10A |
| Accuracy | 0.2S | 0.2S | 0.2S | |||
| Display Resolution & Parameters | ||||||
| Volage | 0.01 V | |||||
| Current | 0.0001 A | |||||
| Power Factor | 0.001 | |||||
| Frequency | 0.001 Hz | |||||
| Energy | 0.00001 Wh | |||||
| Error Percentage | 0 | |||||
| Waveforms | ||||||
| To analyse the waveform distortion | ||||||
| To identify cases of CT saturation | ||||||
| Available for both Voltage and Current channels | ||||||
| Harmonics | ||||||
| Voltage and Current Harmonic Distortion | ||||||
| Analysis upto 21 st Harmonic | ||||||
| Instantaneous Measurement | ||||||
| Simultaneous display of all Instantaneous parameters | ||||||
| Phase-wise – Voltage, Current, Active & Reactive Current and Power Factor | ||||||
| Phase wise active, Reactive and Apparent Power | ||||||
| Average Power Factor and Frequency | ||||||
| Mechanical | ||||||
| Dimension | 275 x 210 x 110 mm (not exceeding) | |||||
| Enclosure | ABS FR (V-O) (High Strength Moulded) | |||||
| Operating Temp | -10 to 50 Deg C | |||||
| Storage Temp | -25 to 70 Deg C | |||||
| Rel. Humidity | 95% non-condensing | |||||
| Phasor | ||||||
| Phasor diagram to visualise the phase sequence and lead/lag conditions | ||||||
| Identification of CT reversal, Phase Sequence reversal, CT / PT interchange, Low Power factor | ||||||
| Standards | ||||||
| IEC 60687 | ||||||
| IS 14697 | ||||||
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