IEGBX111-34231-1-V

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Circuit breakers are essential components in electrical systems, and are designed to protect electrical systems from overload and short circuit damage. IEGBX111-34231-1-V, or simply EGBX1, is one such circuit breaker. While it can be found in various applications, the specifics of its field of application and working principle will be discussed in this article.

The EGBX1 is primarily used in medium voltage switchgear and associated accessories, essentially operating as a high-speed pole mounted circuit breaker, where use of bushings or cable terminations is required. Depending on the application, it is suitable for ratings of 12KV to 40.5KV, though some variants may be used for up to 72.5KV. This circuit breaker requires a 3-phase system with 4-conductors – the 1st and 3rd phases being in parallel, operating at a frequency of 50/60 Hz.

The breaker\'s working principle is based on the use of a single pole-operated interrupter unit. This unit contains a gas-filled tank, a pair of contacts, an electromagnetically operated plunger, and a nitrogen pressure differential device. When the contacts are closed, electrical current can flow. However, when power overload or short circuit faults occur, the current flowing through the system trips the interrupter, causing the magnet to abruptly move and open the contacts. This opens the circuit, thus providing protection to the system.

The EGBX1 also has a number of safety features that make it ideal for use in medium voltage power systems. For instance, it has a motorized operating mechanism for closing, which prevents violent operation when closing the breaker and makes the operation smoother. In addition, digital indicating lamps indicate the stations status, as well as lamp test and manual override facility to enable manual operations if necessary.

The EGBX1 is also versatile, and can be used for various functions, such as transfer, isolation, switching, grounding, and continuity monitoring. It has several other advantages as well, such as excellent dynamic performance, minimal maintenance, and providing reliable service under severe operating conditions.

To sum up, the EGBX1 is an ideal circuit breaker for use in medium voltage switchgear and accessories, providing protection, safety features, and versatility. It works on a simple yet reliable principle, and its dynamic response and minimized maintenance make it a popular choice for many electrical systems.

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