PDV16-3,81-H-K

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The PDV 16-3,81-H-K is an electromechanical device able to provide cost-efficient, reliable, and safe overcurrent/overvoltage protection to AC circuits and systems for medium and long distance power lines. This versatile device works on both single-phase and three-phase power lines and can be powered with either AC or DC voltage. The device is designed for use in industrial equipment, power lines, residential facilities, commercial locations, and anywhere that requires overcurrent and overvoltage protection.

The PDV 16-3,81-H-K has three main components: the main module, an auxiliary module, and the control/indication module. The main module is the primary overcurrent protection. It consists of a phase adjustable thermal-magnetic overcurrent interruption element, and a forced disconnection system which isolates the main module from a potential fault and serves as a backup protection if the primary element fails. The auxiliary module is designed to provide very high short-circuit current withstand for very short times. It operates on two different principles: the short-circuit protection element and a drill-off isolating system.

The control/indication module consists of a manual gate controller, analog indication, a pulse triggering device, and digital and transformer-coupled output relays. The manual gate controller allows the user to manually adjust the trip current, the overvoltage settings, and the hysteresis time of the overcurrent circuit. The analog indication provides the user with a visual indication of the current, voltage, or frequency of the incoming signal and the digital and transformer-coupled output relays indicate the status of the main module and the auxiliary module.

The working principle of the PDV 16-3,81-H-K is based on the principle of overcurrent/overvoltage detection. The main module is designed to provide overcurrent protection for single-phase or three-phase AC power lines. When the input current exceeds the predetermined trip current, the thermal-magnetic overcurrent interruption element will open the circuit, stopping the current flow. The auxiliary module is designed to provide very high short-circuit current withstand for very short times. When the input current reaches the predetermined trip current, the overvoltage setting will trip the integrated short-circuit protection element and the drill-off isolating system will open the circuit. The control/indication module provides the user with easy operation, reliable information, and efficient protection.

The PDV 16-3,81-H-K is a versatile device which provides reliable, cost-efficient, and safe overcurrent/overvoltage protection for AC circuits and systems. Its main module provides overcurrent protection, while its auxiliary module provides very high short-circuit current withstand. Its control/indication module provides the user with easy operation, reliable information, and efficient protection. With its versatile design, the PDV 16-3,81-H-K is a great choice for medium and long distance power lines, residential facilities, commercial locations, and anywhere that requires overcurrent/overvoltage protection.

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