GB4A0808I

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Part Status:	Active

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GB4A0808I is an industrial relay used in six-phase grounding protection systems. It is often used in industrial automation, power distribution systems, and is suitable for single-phase AC/DC power lines and DC systems.The GB4A0808I relay has a wide range of application fields, such as in large power distribution systems, 3-phase unbalanced load protection, three-phase overload protection, 3-phase short-circuit protection, and other protection applications. It can also be used for single-phase overcurrent protection or to protect other sensitive electrical systems, such as lighting systems.The working principle of the GB4A0808I relay is based on its core sensing ability, which is the ability to detect an imbalance in the load current or the relative voltage of the selected three-phase lines. The core sensing can detect whether a fault exists in the system such as a short-circuit or an overload condition and relay a signal to the controller when it detects an imbalance of more than 30%. When the controller receives the signal, it can trigger the required action to protect the system and the load from any potential damage caused by the fault.The GB4A0808I relay also has a built-in time delay which allows it to reject any transient signals it receives from the power line. This feature is essential for power systems as even slightly high levels of transient signals could be misinterpreted as a fault and thus the system could be shut down unnecessarily. The relay also helps reduce losses associated with ground faults on the system as it is designed to detect and isolate the fault quickly.The relay also has other features such as adjustable time-delay selection and adjustable pickup current selection which are customizable according to the requirements of the system. Additionally, the relay has a latching function which allows it to remain in a defined state until it is reset manually or electronically. This allows the relay to be used in a range of applications, such as protection from voltage dips and overvoltages, motor running protection, and transformer protection.Overall, the GB4A0808I relay is an essential component for many electrical and power systems, due to its wide range of application fields, its core sensing ability, and its many additional features. Its robust design ensures that it can withstand temperature and humidity conditions found in some industrial environments and allows the system to operate safely and reliably.

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