Rockwell soft opening coil current coil

Rogowski coils (Rockwell coil) the full name 罗哥夫斯基 coil, since no core, also known as hollow coil is wound on a uniform non-ferromagnetic material of the toroidal coil. The output signal is a current versus time differential. Via an output signal voltage integrating circuit, you can restore the true input current. Second, product characteristics: Compared with conventional transformers, Rogowski coil without a ferromagnetic material, so no hysteresis, no magnetic saturation phenomenon, we can test hundreds of amps without saturation, almost no phase difference, while no secondary open circuit dangerous. Response bandwidth 1Hz-1MHz Applications: Based on Rockwell coil with a current real-time measurement, fast response, not saturated, almost no features of the phase error, so it can be applied to the relay, thyristor rectifier, inverter speed, resistance welding and other serious signal distortion occasions. Rated current (rms) 1 ~ 20000Aac output 0-100mv (without integrators) 0 ~ 5Vac (with integrator) Rogowski coil length 20cm ~ 200cm optional lead shield wire leads, lengths isolation voltage 3500V Temperature range -25 ℃ to + 70 ℃ response bandwidth of 1Hz to 1MHz accuracy of ± 1% (flexible coil) ± 0.2%, ± 0.5% (rigid coil)