LIRT24A

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LIRT24A is a type of monitor, current/voltage with relay output, designed for over/under voltage, frequency and phase failure monitoring, current or voltage parameters, as well as mABS, n ABS, or mCPS, nCPS, and mV/nV operation modes. It can be used in industrial, commercial, and residential applications involving electric power, energy monitoring, and control systems.

The device has three types of relays comprising an over-under-current/voltage relay, a frequency relay, and a phase-failure relay. The current relay is set up using a "set current" switch, which is located at the bottom of the relay, and can be adjusted from 0.1A - 32 A. The voltage relay is set up using a "set voltage" switch, which is also located at the bottom of the relay, and can be adjusted from 0.1V - 32V. The frequency relay is set up using a "frequency set" switch, which is located at the top of the relay, and can be adjusted from 45-65 Hz. The phase-failure relay is set up using a "phase-off" switch, which is also located at the top of the relay, and can be adjusted from 0-30s.

The LIRT24A also has two independent current/voltage measuring inputs to monitor any two of the following parameters: current, voltage, wattage, and phase failure. The device can measure up to 2000A current in 2mV resolution, and up to 600V in 2V resolution. It has an input galvanic isolation to protect the measurement from interference from EMI/RFI signals.

The device is designed to provide reliable performance, and it has a wide operating temperature range from -20°C ~ +75°C. It is also designed with an advanced self-diagnostic feature to check the reliability and accuracy of the measurements every second. The device comes with comprehensive software and user interface design, which make it easy to set up and operate.

The LIRT24A has a variety of applications in electrical and power systems. It can be used in power measuring applications for over/under voltage protection, over/under-current protection, frequency monitoring, phase failure monitoring, current or voltage parameters, and mABS/n ABS/mV/nV operation modes. It can also be used for energy monitoring and control applications such as load shedding and energy management systems.

The working principle of the device is relatively simple. It consists of two inputs for the current/voltage measurements, a digital signal processing unit, and three relays. The current/voltage measuring inputs are connected to the power supply, and the readings are processed by the DSP unit. The relays are activated when the current/voltage readings exceed or fall below the predetermined thresholds. The device also has been designed to provide accurate and reliable measurements, and to protect against EMI/RFI interference.

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