RFSY

RFSY series is a flexible current sensor based on Rogowski coil principle, which is in small size, light weight and easy to install and
offers a choice of different sizes, which can also be customized design of the customer requires a special order. It has no magnetic
saturation and a shielding layer to resist the influence of external magnetic field, so stable measurements can be achieved in the
range of low current to hundreds of kA. The flexible rogowski coil is an extremely comfortable solution for current measurement,
particularly suited to current monitoring and electrical retrofitting, can be used in many cases where a traditional current
transformer (CT) is not available, or can replace it.Systems that use an ADC chips(ADS131M04) or a power metering ICs(ADE7753)
that support the Rogowski coil principle are even more advantageous.
We provide 4-20mA DC, 0-5V DC, 0-100mA AC,0-1A AC, 333mV AC and other integrators suitable for more usage scenarios.

Introduce

Isolation measurement CATIII
Insulating plastic case recognized under UL94-V0
Complied with CE and RoHSIII
Protection degree IP67

Features

Light, flexible and easy to install
Bandwidth range widely
No hysteresis lag, no saturation
The secondary open circuit no danger
Excellent linearity
Multiple sizes can be customized

Applications

Measuring instrument, laboratory instrument
Power monitoring system
DC ripple measurement
Harmonic and transient monitoring
Power meter, power analyzer sensor

popularization of science

Rogowski coil also called differential current sensor, it is a “hollow” circular coil, arranged around the conductor, so that an
alternating magnetic field generated by the current induces a voltage in the coil. The coil is actually a transformer coupled to
the conductor under test, and the voltage directly output from the coil is proportional to the rate of change of current, e.g.
@50Hz/1kA Vout=50mV, @60Hz/1kA Vout=50*(60/50)=60mV. If you want to obtain the current waveform or current value
that doesn’t matter to frequency also need to add the integral circuit to achieve 90° phase shift compensation and frequency
equalization.