LESR 50-NP

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Current transducers are devices that are used to measure current and related properties of an electrical system. A current transducer typically contains a primary separator and a secondary transformer to detect and transform the current signal into a corresponding output. These current transducers are widely used in industrial applications, energy systems and safety systems.

A LESR 50-NP is a unique type of current transducer which is capable of measuring both AC and DC current. The device is comprised of a rectifier, a voltage divider to lower the output voltage, and a precision resistive load circuit. It does not require a shunt or a sense winding. It is used for current monitoring in industrial applications and comes with a sensing range from 2.5 to 50Amps.

The working principle of the LESR 50-NP current transducer is based on the Hall effect principle. This principle states that when a magnetic field is applied to a semiconductor material, the charges within the material are displaced to one side due to the Hall effect. This displacement of the charges leads to an electric field and a voltage difference across the semiconductor. The voltage difference is used to measure the current. In the LESR 50-NP, the magnetic field is generated by a ferrite core, which is wrapped by an external secondary voltmeter winding and a primary current transformer winding.

The device has two outputs – an AC output and a DC output. The AC output measures the AC current while the DC output measures the DC current. The AC output is measured using a rectifier which rectifies the AC signal and a voltage divider which reduces the output voltage. The DC output is measured using a precision resistive load circuit.

The LESR 50-NP is a versatile current transducer which can be used in a variety of industrial applications. It is typically used in electric motors, DC motors, HVAC systems, and in energy harvesting systems. It has a relatively low cost and is easy to install and maintain. Furthermore, it provides accurate measurements and is capable of withstanding harsh environmental conditions.

In conclusion, the LESR 50-NP is a reliable and robust current transducer suitable for a variety of industrial applications. It uses the Hall effect principle to measure AC and DC current and is relatively easy to install and maintain. It has a low cost and provides accurate measurements even in harsh environmental conditions.

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