The VariTrans P 40000 series from Knick enables reliable voltage measurements from ±50 mV to ±3600 V and current measurements from ±100 mA to ±20 kA. The proven series from the ProLine has now been expanded to include the transducer P42000D2, which measures voltages up to 2200 V DC in a compact housing for Din rail mounting.
Photovoltaic (PV) array degradation is an important aspect to consider for system design and installation. Over time, factors such as weather and UV exposure contribute to solar cell performance decline. By better understanding degradation effects and contributors, safeguards and technology enhancements can potentially be considered for performance improvements.
The requirements placed on railway vehicles have increased significantly in recent years. Products for rolling stock need to ensure a higher level of functional safety than ever before to make the travel experience more comfortable, safer and reliable for the end user – the railway customers. New technologies must be developed to meet future application requirements as well. Based on these points, Knick decided to fundamentally redesign one of its core product groups.
The P27000 is a Universal Isolation Amplifier that offers the ability to take non-standard output signals produced by devices such as shunt resistors, batteries, and current transducers and convert them to the more standard units and ranges typically needed by PLCs and DCS systems.
There are numerous features that make the P50000 series of high-voltage and current transducers a great choice for deployment within critical rail systems. What are they?
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.