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ProductsThe basic parameters include: the core of the transformer, the ground current of the clamp, the neutral ground current, the top oil temperature, the bottom oil temperature, the oil level, the pressure, the pressure of the oil Release valves, gas relays and other transformer conditions information. Core ground current monitoring can be found inside the box body, the internal insulation damp or damage, tank deposition sludge, core multi-point grounding and other types of failure, so early detection of latent risks, early warning, to avoid accidents.
Number | Participation quantity | Sampling method | Technical Specifications / Uncertainty | |
1 | Main tank gas pressure | Pressure Sensor | 0~1MPa,1.5% | |
2 | Oil level | Oil level gauge | Switch | |
4~20mA,1cm | ||||
3 | Gas accumulation and oil flow rate | Gas relay | Light gas | Switch |
Heavy gas | Switch | |||
4 | Top oil temperature | Pt100 | -40~ 150℃,±1℃ | |
5 | Bottom oil temperature | Pt100 | -40~ 150℃,±1℃ | |
6 | Winding hot spot temperature | Pt100 | -40~ 150℃,±1℃ | |
7 | Ambient temperature | Pt100 | -40~ 80℃,±1℃ | |
8 | Core, clamp ground current | Current sensor | 10mA~10A, ±2.5mA(Less than100mA) ±2.5%(not less than100mA) |