Powertek Rogowski Coils
The CWT Miniature current probes utilize a Rogowski Coil sensor thin enough (typical cross section 3.5mm) to fit in very confined spaces – often between the legs of a semiconductor power switching device. With high frequency bandwidths up to 20MHz, the CWT miniature Rogowski coil is ideal for measuring switching transients or pulsed currents starting at 300mA up to 300kA in power electronic equipment.
The CWT miniature Rogowski probe is a clip around flexible coil current probe based on the Rogowski principle to achieve high bandwidth measurement and faithful conversion of current to voltage, intended for use with oscilloscopes, data loggers, power meters and power analysers. Available with a 100mm or 200mm length clip-around coil, ensuring easy current monitoring even where access is limited.
A wide range of rugged clip around flexible coil current probes using Rogowski Coil technology for wide bandwidth measurement and faithful conversion of current to voltage, intended for use with oscilloscopes, data loggers, transient recorders, power meters and power analysers is available. Based on the Rogowski principle, these probes give very high bandwidth performance and measurement of very high currents (10A-300kA). The small coil profile (typically 8mm dia), means the coil can be retrospectively installed without disruption to an active power system. As standard, the coil is insulated at 10kVrms, insulation can be increased if required.
Models are available with a variety of clip-around coil sizes to suit most conductors,
allowing easy current monitoring even where access is limited.