CR5211-20 Datasheet/PDFCR5211-20 is a type of current transducer, which is a device that is capable of transforming a current signal into a proportional voltage signal output. It is a miniaturized transducer, low-cost and reliable, and is able to measure up to 15A with an accuracy of 1.0%.
Application Field
Typically, the CR5211-20 is used for AC current measurements; it is widely applied in electricity distribution systems, AC/DC drives, transformers, and electric motor operation as well. Its application field includes the measurement of low frequency AC currents with a wide range of applications from protection and control to power quality regulation systems.
Working Principle
The transducer works by detecting a current in the primary winding. When the current passes through, the hysteresis cycle generates a flux in the transformer, which in turn excites the secondary winding. When the secondary winding is excited, it generated a current into the primary winding, which is proportional to the current flowing in the primary winding. This generated current is then directed to the secondary rectifier which converts the AC signal to DC signal. Finally, the DC signal is sent to the auto-zero stage and a 1.0% accurate proportional output voltage is generated.
With its reliable performance, miniaturized dimensions and cost-effective design, the CR5211-20 is an ideal current transducer for general purpose AC measurements.