L34S400D15 Sensors, Transducers

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Current transducers are electrical instruments that measure current. They typically employ a current-sensing element, such as a transformer, an inductor, a resistor or a hall effect device, in order to generate a signal proportional to the measured current. This signal can be used for control and monitoring. The L34S400D15 current transducer is one such device, and in this article we will explore its application field and working principle.

The most typical application of current transducers is in industrial and commercial electric systems. A current transducer is often used to measure the current load on an electric power system, and then announce the data to a control or monitoring system. This type of current transducer can also be used to measure the current flowing through electrical lines or cables, which helps to prevent costly overloads or unsafe surges.

The L34S400D15 is designed for use in low frequency applications, including power distribution and protection, commercial lighting controls, motor control, and medical equipment. It has an input range of 0-200 A AC and is compatible with operating currents up to 400 A AC. It features a built-in overload protection and an current output of 4-20 mA, with a resolution of 0.1 mA. This current transducer is UL, CSA, and CE certified and compliant with IEC standards, making it a safe and reliable option.

In terms of its working principle, the L34S400D15 is based on a transformer principle. It is designed around a toroidal core wound with copper wire, which acts as the primary winding. A secondary winding is then wound around the core, forming an electrical transformer. A current is sent into the primary winding, and an AC voltage is generated in the secondary winding, which is proportional to the current in the primary winding.

This AC voltage is then sent through a rectification circuit, which converts it into a DC voltage. This DC voltage is then amplified and outputted as the current output signal, which is directly proportional to the input current. This makes it easy to measure and monitor the current in electric systems accurately and reliably.

In summary, the L34S400D15 current transducer is a valuable device for measuring and monitoring current. It features a wide input range and is designed with overload protection, making it safe and reliable to use. It is based on a transformer principle and works by generating an AC voltage that is proportional to the input current, which is then rectified and outputted as a current output signal. It is suitable for a variety of low frequency applications, making it a useful and versatile tool for electric systems.

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