TRV02

TRV02 instantaneous voltages output Rogowski coil current sensor

The combination of the rogowski coil and integrator can achieve 90° phase shift compensation and frequency equalization, so that the output of rogowski coil is in the same phase as the primary current and is frequency independent, which is suitable for more application scenarios. TRV02 series integrators are instantaneous voltages that output proportional to primary current and are usually used with power analyzers, oscilloscopes, ammeters, data loggers, data acquisition cards and other devices.

Features include:

Fully isolated measurement
Insulated plastic housing, UL94-V0
Certified CE and RoHSIII compliant
DIN rail mounting
Small size

Applications:

Power analyzers
Oscilloscopes
Data loggers
Aata acquisition cards
Ammeters

What is the Rogowski coil?

Rogowski coil is also called differential current sensor. It is an “air core” toroidal coil arranged around a conductor, so the alternating magnetic field generated by the current induces a voltage in the coil. The coil is actually a mutual inductor coupled to the conductor being measured, and the voltage directly output from the coil is proportional to the rate of change of the current, such as: @50Hz/1kA Vout=85mV, @60Hz/1kA Vout=85*60/50=102mV. If you want to obtain a current waveform or a current value that is independent of frequency, you need to add an integral circuit to achieve 90° phase shift compensation and frequency balance.