LPSR 6-NP

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LPSR 6-NP is a type of current transducer used to measure AC and DC currents and thus control and protect electrical circuits. The device works on the same principle as the more commonly-used current transformers, but instead of inductively coupling the examined current, the LPSR 6-NP uses several optical means to do so. This capability means that the transducer can be used with much higher accuracy, better efficiency, and in a variety of less demanding applications.

The optical current transducers have two main components – a tracking cell and an amplifier/comparator module. The tracking cell is essentially a photoelectrically-sensitive diode in a hermetic glass capsule which is inserted into the measured current circuit. As such, the optical cell is the “eye” of the transducer and it is through it that the current is “seen”. Its output is then converted into an electrical signal and then compared to an electrical reference signal to convert it to a proportional signal.

The amplifier/comparator module is the brain of the current transducer. It takes the output signal from the tracking cell and compares it with the reference signal to generate a signal proportional to the current in the circuit. This signal can then be used to control different aspects of the circuit, from current flow (via fuses or breakers) to current measurement. The module can also be used to measure the magnitude and polarity of the current as well as the frequency of the current.

The optical current transducer has several advantages over traditional current transformers. Firstly, the optical current transducers are much more accurate than current transformers. This is because, unlike current transformers, optical current transducers do not suffer from hysteresis, saturation, or insertion losses. This means that the current is accurately measured, regardless of its size or shape. Furthermore, optical current transducers can be used in a variety of application fields, from over-current protection to harmonic signal analysis.

Additionally, optical current transducers are much easier to install and maintain than current transformers. Since it uses light instead of magnetic fields, the optical current transducers do not require the installation of large and cumbersome transformers. This means that they can be used in circuit boards and other confined spaces, making them more suitable for various types of applications. The lack of maintenance also means that the optical current transducers do not incur any additional cost in the operation of the circuits.

The working principle of the optical current transducers is also very simple. The tracking cell senses the current, and this signal is then compared to a reference signal. This comparison generates a signal proportional to the actual current in the circuit, which can then be used by the amplifier/comparator module. The output signal from this module is then compared to the original current signal to generate a signal which is proportional to the measured current signal in the circuit.

Finally, the optical current transducers are also very reliable. Since the transducers use light instead of magnetic fields, they are immune to interference from external magnetic sources, unlike current transformers. Furthermore, the optical current transducers are also very accurate and precise, so they can be used to measure AC and DC current in a variety of applications.

In conclusion, the LPSR 6-NP optical current transducer is a versatile and accurate current transducer. It uses an optical means to measure both AC and DC currents and can be used in a variety of applications. Moreover, its installation and maintenance are much easier than traditional current transformers. Therefore, the LPSR 6-NP optical current transducer is a preferred choice for many applications requiring accurate and reliable current measurement.

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