CR4120-5

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Current transducers, such as the CR4120-5, are used in a variety of applications, such as building automation, industrial automation, transportation and communications systems. These transducers are devices that measure the current in a circuit and generate a representative measurement signal. The CR4120-5 is a high performance, microprocessor based transducer, which can be used in three-phase circuits.

The main components of the CR4120-5 are the primary and secondary windings, opto-isolation, and signal detection circuits. The primary winding is used to measure the current in a three-phase AC or DC circuit. The secondary winding is used to convert the AC voltage into a signal suitable for further signal processing. Opto-isolation is used to ensure the transducer is isolated from external interference and to protect the system from the effects of stray magnetic fields. The signal detection circuit is used to detect the signal at the output of the secondary winding and convert it into a suitable digital signal.

The CR4120-5 is designed to monitor the current in a three-phase system. It has a high accuracy of 0.1% and a frequency bandwidth of 40kHz. The transducer can be used as a real-time current sensing device, with an update rate of 250kHz. It is also capable of detecting changes in the current as small as 0.001%. Furthermore, it offers high accuracy and stability for long-term monitoring of power quality and electrical networks.

This transducer can be used in a variety of applications, including motor protection, power factor monitoring, motor control, monitoring of field trips, over current protection and protection against interactions with other components in the system. It can also be used in the detection of ground faults. The transducer can measure up to 16 times the peak current with a maximum range of 200amps. The signal output is proportional to the current and independent of the wire length.

The working principle of the CR4120-5 transducer is based on the principle of induction. In the primary winding, when current passes through the conductor, a magnetic field is induced which is proportional to the current in the coil. This induces a voltage in the secondary winding, which is proportional to the rate of change of current in the primary winding. The voltage is then processed electronically to give an accurate output signal.

The CR4120-5 can be used in a wide range of applications, from small to large circuits, due to its high accuracy, speed and stable operation. Its design makes it suitable for use in harsh environments. Thanks to its compact size, the transducer can be easily installed in confined spaces and can be easily connected to a wide range of controllers and control systems. Furthermore, the transducer is equipped with a digital display for easy monitoring of parameters.

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