HARTING has launched a new range of current transformers specifically designed for wind energy system development. The new window type current transformers can be used anywhere where high-precision current measurements are required, e.g. to measure the feed from decentralised power generation plants for billing activity with the network operator.
The transformers have been developed in close collaboration with key companies in wind energy plant construction to specifically meet key ‘alternative energy industry’ requirements.
The product development has been focused on good functional reliability, and high mechanical stability. The result is accurate feed control with high levels of precision, according to the firm.
The new transformers are distinguished by their simple assembly, and the transducer has a rectangular shape with a cut that is selected so that it fits perfectly onto a DIN rail.
Measuring range from 2,000 A to 10,000 A, both versions transform the measuring current to 5 A at rated current.
The included mounting accessories enable simple and safe installation with standard tools, while the accuracy class of 0.5 and 0.2 enables precise current measurement over a wide range.
If needed, the transducers can be calibrated from the factory by a nationally recognised testing laboratory in order to make them acceptable for billing purposes.
To enable the transformers to be used in thermally critical environments such as bus bars in wind and solar plants, they are designed to operate over a broad temperature range of -25°C to +55 °C.