8508050256

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8508050256 is an electronic switch used for the control and protection of large electric power systems. The device is used in various segments, such as the protection and control of power plants, transmission lines, substations and small industrial plants. It has been designed to measure and control parameters such as current, voltage, and power in electric power systems. The device also helps in detecting abnormalities in the system and providing alarm and control signals for operations.

The 8508050256 device comprises a three-phase control, indication and protection module and a single-phase control, indication and protection module. The three-phase portion of the device comprises three protection circuits, each comprising five terminals and five output relays. The single-phase portion of the device comprises two three-phase power terminals, two single-phase power terminals, and two protection circuits, each having two output relays. The device also includes a power supply module, a circuit protection unit, and an input interface.

The applications of the 8508050256 include : Monitoring and controlling power plants, transmission lines, substations and other electric power systemsPreventing electric power system accidents and faultsProtecting the system from power outages and system damageDetecting outages and automatically switching circuit breakersProviding alarm and control signals for operations

The working principle of the 8508050256 is based on the omni-directional, four-quadrant measurement principle. This allows the device to measure and sense voltage, current, and power in each of the two quadrants. The device utilizes four opto-coupled signal transformers for sensing the currents and two opto-coupled voltage transformers for sensing the voltages. Additionally, a three-phase protection relay, which is an analog detector cum comparator element, is also employed. This relay is used to detect any difference in potential between the power sources and provide the necessary control signals.

The 8508050256 also uses a control loop which receives input signals from the signal transformers/relays and controls the actuation of the output relays. The control signal is generated by the three-phase protection relay, based on the fault type and system power conditions. When an abnormality is detected, the output relay is energized and the alarm signals are propagated to the program controller.

The 8508050256 device is advantageous to various systems due to its bidirectional power flow measurement, fault detection capability, precise fault detection and protection, low power consumption, and easy installation and maintenance. It enables protection and control engineers and technicians to supervise the system parameters without being physically present in the system. Moreover, its functions can be adjusted using the SCADA software.

In conclusion, the 8508050256 is a sophisticated electronic switch used for monitoring and controlling various electric power systems. It comprises three-phase and single-phase protection circuits, a power supply module, a circuit protection unit, and an input interface. The device enables protection engineers and technicians to supervise the system parameters without being physically present. The device utilizes the omni-directional, four-quadrant measurement principle and a control loop to measure and sense voltage, current, and power in each of the two quadrants and provide the necessarycontrol signals.

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