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20314000102 Current Transducers

Current transducers are devices used to measure, transmit and control electric currents. They are mainly used to measure AC current, but may also be used to measure DC current. They have different types based on the output signal, such as analog signal, digital signal, relay signal or PLC signal. In addition, some current transducers are also available with RS485 interface and/or Modbus protocol.

20314000102 are voltage-output current transducer. The primary component of 20314000102 is a low-saturation core transformer, which takes the current to be measured as the input primary, while the secondary provides a voltage output that is proportional to the input current. This voltage signal is transformed into a linear photocoupler or isolation amplifier output signal through a special circuit. This output signal directly reflects the magnitude and current waveform of the input current.

To better understand the working principle of 20314000102, we take an example of a AC current transducer. During the normal state, the AC current fed into the primary of the transformer generates an AC voltage in the secondary, which is proportional to the current. This output voltage is rectified by a diode, which is filtered by a RC circuit. This filtered voltage is then fed into a low-saturation voltage-stabilized amplifier (LM393), where the voltage signal is precisely amplified and a fixed output voltage of 5V is obtained. This 5V output voltage is then fed into a photocouple IC, which drives an LED in the secondary circuit and produces an isolated output signal, which is in fact a voltage signal proportional to the AC current.

The unique feature of the 20314000102 current transducer is that, being a voltage output type, the output signal of the transducer is isolated from the primary current. This feature effectively eliminates the risk of current backflow or unwanted secondary equipment. In addition, it also eliminates the possibility of short circuits, thereby ensuring the safety of both the measuring circuit and the secondary equipment. As a result, it can be used in negative isolation, electrical isolation, electrical grounding, zero current grounding and other occasions.

The 20314000102 current transducers are widely used in applications such as power plants, petrochemical industry, solar panel systems, offshore oil and gas platforms, aerospace, and laboratory and other applications. With its compact size, high accuracy, good linearity, and reliable working performance, the 20314000102 are suitable for the measurement and control of single-phase and three-phase AC currents. In addition, the 20314000102 also feature wide temperature range and high common-mode rejection, thereby making them ideal for applications in harsh industrial environments.

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