The GlobeCore TOR-7 universal insulating fluid tester is designed to assess key condition indicators of insulating liquids used in transformers and other oil-filled electrical equipment. Depending on the configuration and the compatibility of its sensors, the instrument can be used to evaluate mineral oils and other insulating fluids, including natural ester-based insulating fluids.
The TOR-7 measures water activity and temperature, dissolved hydrogen concentration, and particulate contamination. These parameters provide useful information about moisture conditions, potential developing faults, and fluid cleanliness. Unlike dedicated dielectric test instruments, the TOR-7 does not directly measure breakdown voltage, dielectric dissipation factor (tan δ), or relative permittivity.
The tester combines several measurements in one system and presents the results to support fluid condition monitoring and maintenance decisions. Its automated operation and compact design make it suitable for use in electrical maintenance facilities and other locations where the instrument’s operating requirements can be met. Results should be interpreted against criteria appropriate for the particular fluid type; the suitability of each sensor for natural ester-based insulating fluids should be confirmed for the selected instrument configuration.
Natural Ester-Based Insulating Fluid Universal Tester TOR-7 Specifications
| № |
Item |
Value |
| 1 | Measuring cell volume, l |
1,2 |
| 2 | Oil sample volume, l | 0,5 – 0,7 |
| 3 | Maximum pressure in the device, Pa |
0,3 |
| 4 | Maximum leakage in the device, Pa |
26 |
| 5 | Inlet oil pressure, bar |
0,3 – 3 |
| 6 | Temperature of measured oil, ºС |
20 – 90 |
| 7 | Maximum power consumption, kW, no more |
1 |
| 8 | Electrical current parameters: – voltage, V – variable with frequency, Hz |
Customer request |
| 9 | Overall dimensions, mm, not more than – length – height – width |
465 530 375 |
| 10 | Weight, kg, not more than |
40 |
Oil measurement characteristics
| № | Item | Value | |
| Moisture measurement characteristics | |||
| 1 | Operating range, aw (water activity (aw)) | 0…1 | |
| 2 | Accuracy at 20 °C | ±0.02 aw (0…0.9 aw) ±0.03 aw (0.9…1 aw) | |
| 3 | Temperature measurement | yes | |
| 4 | Working environment temperature, °C | 0…55 | |
| Hydrogen measurement characteristics | |||
| 6 | Measuring range, ppm | 25-5000 | |
| 7 | Accuracy | 20% of measurement or 25 ppm | |
| 8 | Repeatability | 10% of measurement or 15 ppm | |
| 9 | Response time | <60 min (90% step change) | |
| 10 | Cross Sensitivity | Less than 2% cross-sensitivity to other gases (CO, CO2, Hydrocarbons) | |
| 11 | Working environment temperature, °C | 0…55 | |
| Contamination Measurement Characteristics | |||
| 6 | Measuring range, ppm | 25-5000 | |
| 7 | Accuracy | 20% of measurement or 25 ppm | |
| 8 | Repeatability | 10% of measurement or 15 ppm | |
| 9 | Response time | <60 min (90% step change) | |
| 10 | Cross Sensitivity: | Less than 2% cross-sensitivity to other gases (CO, CO2, Hydrocarbons) | |
| 11 | Working environment temperature, °C | 0…55 | |
| Characteristics of degree of purity or level of contamination | |||
| 12 | Acceptable viscosity range | 1 to 1000 mm²/s | |
| 13 | Measured variables |
ISO 99 (ISO 4406:1999) SAE (SAE AS 4059) or ISO 87 (ISO4406:1987) NAS (NAS 1638) |
|
| 14 | Measurement range |
Measurement from ISO class 9/8/7 (MIN) to ISO class 25/24/23 (MAX) Calibrated to ISO range from 11/13/10 to 23/21/18 |
|
| 15 | Accuracy | +/- ½ ISO class in calibrated range | |
| 16 | Working environment temperature, °C | 0 … +85 | |
