CELPK1111-1REC4-33388-180 Circuit Protection

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Circuit breakers are essential safety components in power systems for protection against short-circuits and over-current. They are responsible for interrupting fault currents quickly to prevent damage to the devices within the system and to contain further hazard. CELPK1111-1REC4-33388-180 circuit breaker is a specific type of medium voltage circuit breaker suitable for various applications. This article explains its application field and working principle.

Application Field

CELPK1111-1REC4-33388-180 circuit breaker is mainly applicable to distribution systems of rated voltage 12KV or secondary distribution networks of power plants and substations. It is suitable for operation in indoor and outdoor locations and for distribution power up to 4000A. This circuit breaker is applicable for protection for short-circuit and over-load, also suitable for lighting load main power and motor control.

Working Principle

A CELPK1111-1REC4-33388-180 circuit breaker has several main components which work together to do its job. When a fault occurs, a sensitive current transformer detects the fault and a trip coil is activated. The trip coil causes the trip bar to move and engages with a trip release mechanism. The trip release mechanism triggers the vertical drive and the breaker contact is opened using the power spring or closing spring. When it’s time to clear the fault, a reset coil is activated and the trip bar is released. The power spring or closing spring then quickly moves the contact and the breaker is reset.

CELPK1111-1REC4-33388-180 circuit breaker utilizes arc-extinguishing technology in order to switch off power in the presence of an overload or short circuit. The circuit breaker has an arc-extinguishing chamber which, when an arc is generated from the contacts, the arc will be guided into the chamber and extinguished by the arc-extinguishing medium. This type of circuit breaker is more suitable for high speed operation than traditional circuit breakers as it features a superior arc-extinguishing performance.

In addition, the circuit breaker has anti-pumping and anti-coupling functions for protection. Anti-pumping functions will delay the single and three successive operations if they are activated within a certain period of time, while the anti-coupling function will prevent double Frequent pairing operations.

CELPK1111-1REC4-33388-180 circuit breaker is features a robust design and reliable performance which make it one of the most popular circuit breakers in its class. Its extensive application field, superior arc-extinguishing performance, anti-pumping and anti-coupling features make it both reliable and economical. With proper installation and regular maintenance, this circuit breaker can provide years of trouble-free operation and safety to ensure the safe operation of the power system.

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