Voltages have long been monitored as a key component of automation and control. But today, with the continued emergence of IIoT concepts, there is also increased awareness of the value of the data as it relates to both predictive maintenance and power consumption optimization.
Traditional millivolt AC transducers are very susceptible to errors due to their poor insulation and are only designed for pure sinewave measurement. The VariTrans P41000 TRMS, however, has been developed to also accurately process distorted input signals.
The requirements on operational and safety-related circuits are continuously growing. This also affects the technical requirements on components. Often, functional safety can only be increased with much effort and at the expense of availability. Our ProLine P 22400 passive signal isolator demonstrates that high safety standards and high availability can go hand in hand.
To monitor the temperature of high-voltage motors, insulated temperature sensors are installed between the windings of each motor phase. Often, these motors are operated for decades. Transient overvoltages from the power supply, voltage surges caused by reflection, or continuous mechanical and thermal loads can damage the insulation. In that case, the high motor voltage will be transmitted via the sensor line.