Online Moisture Monitoring In Transformer and Reactor Oil
3-In-1 Sensor Transformer Moisture Sensor
The existence of moisture lowers the breakdown voltage of insulating oil, increases the dielectric loss and accelerates the degradation of polymer insulation aging. Thus reducing the performance of the insulation system and even cause insulation breakdown and partial discharge.
Measures water activity, water content and temperature.
Water Activity :
0～1 aw (0-100%)
Measurement accuracy:
0-0.6 ± 0.02aw
0.6-0.9 ± 0.03aw
Water Content :
Moisture in oil range: 0-500 ppm applicable to mineral transformer oil
Response time: < 3 minutes
Measurement accuracy : ±10%
Temperature :
-40 to 120°C
Measurement accuracy : at +25 °C ± 0.2°C
Operating Temperature : ‐40 to 85 °C
Fluid Temperature : ‐40 to 120°C
RS485 MODBUS RTU and 4~20 mA outputs
Pressure Range : max 100bar
Probe Material : 316 Stainless steel
IP Rating : IP66
Supply VoltageDC : 9V‐36V
Cable : 2m
Standards : CE authentication EN 61326‐1 EN 61326‐2‐3 ICES‐003 B degree
6-In-1 Sensor
Measures density, viscosity, temperature, water activity (aw) , moisture (ppm) and oil quality (Dielectric constant) of oil.
Density :
0.6g/cm³~1.25 g/cm³ or
600 kgm³~1250
Accuracy：0.0001g/cm³ or 0.1 kg/m³ (Take the larger value)
Viscosity :
25~400mPa·s (1-500cSt)
Accuracy : ±5% or ±1mPa·s (Take the larger value)
Temperature range:
0～100 °C
Accuracy: ±0.3℃
Water activity
0～1 aw
Accuracy: 3%
Water Content :
0-30000 ppm (or customizable testing range)
Accuracy: ±10% or ±10ppm (Take the larger value)
Oil Quality : (Dielectric constant, oil aging state)
1-6 level
Accuracy: ±5%
Output: RS485 MODBUS RTU
Power supply : 12V-32V
1.5m cable
Standards : CE, ASTM1657