FP3LDLD04M2

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Part Status:	Active

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FP3LDLD04M2 is a type of a three-phase current sensor, which is mainly used to detect and measure the current of three phases in the AC power system. It uses non-contact magnetic principle to measure the current of each phase. Because the product adopts contactless non-magnetic structure, it is not affected by any short circuit or surge and other abnormalities in the system. In addition, the product has the advantages of small size, simple installation, high precision, stability and reliability.Conventional current sensing methods such as series / shunt resistors and current transformers all use contact methods to convert current into voltage or other parameters. However, FP3LDLD04M3 adopts a non-contact method, which can accurately and reliably measure current through automatic gain adjustment, and has the characteristics of fast response, high linearity, and high interface output accuracy. The main components of the FP2LSD04M3 three-phase current sensor include three-phase power lines, phase sequence detection circuit, rotation detection circuit, error detection circuit, current detection circuit, and output circuit.Among them, the current detection circuit is mainly composed of a three-phase current sampling resistor, a 3-phase A-D conversion chip and a calibration circuit. The 3 phase A-D conversion chip is composed of four PS50L625 3-channel precision A-D conversion chips. These chips convert the measured current signal into a linear digital signal, and output the signal for further current calculation after the calibration circuit.In addition, FP2LSD04M3 also has a built-in phase sequence detection and rotation detection circuit, which can detect and judge the phase sequence and rotation direction of the three-phase power supply accurately and quickly. At the same time, the product uses a hall effect sensor to sense current, which can accurately and quickly measure the magnitude of current on each phase. This can help more electrical equipment to achieve current protection.In conclusion, FP2LSD04M3 is a reliable and safe three-phase current sensing instrument. The application field of this instrument is mostly used in places without pressure and explosive dangerous places to detect three-phase power lines. It is used to measure and protect the current of three-phase power lines accurately and quickly. Its working principle is mainly based on the automatic gain adjustment, which can accurately and reliably measure the current through hall effect sensors.

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