ETC "Joule" blog - recent posts
PFC cabinets using conventional electromagnetic contactors are considerably limited in speed for reactive power regulation. A capacitor stage just disconnected from the mains cannot be reconnected again before the residual voltage on it drops to a certain level. Therefore, the PFC controller limits the switching frequency of the steps, which makes conventional installations unsuitable for compensating rapidly changing reactive power in devices like welding machines, crane motors, CNC machines, etc. In such cases, thyristor contactors and special high-speed controllers for PFC, manufactured by the Czech company BMR, help out
Algodue not only uses Rogowski coils as current sensors for its power analyzers, but also offers use them for any devices with a unified measuring input
ETC "Joule" offers power factor correction units of УКРМ 04 series for reactive power compensation in LV networks of its own production, made of high-quality components using effective modern technologies. For УКРМ 04 assembly, capacitors by HYDRA (Czech Republic), contactors by Rade Koncar (Macedonia), thyristor contactors and PFC controllers BMR (Czech Republic) are used.
MBS AG introduces new series XCTB of current measuring transformers, which are capable to measure harmonics up to 20 kHz. With their help, it becomes possible to accurately measure True RMS values in heavily distorted power networks that have become commonplace in recent times