W28-X1015-3.70

Circuit breakers are electrical devices designed to protect electrical circuits, preventing dangerous overloads and short circuits. The W28-X1015-3.70 is a type of circuit breaker that is suitable for medium-voltage line protection applications with rated voltage up to and including 12 kV. It is a three-pole, pole interval discrimination breaker with a rated current of 925 amperes.

Application

The W28-X1015-3.70 circuit breaker is typically used in medium-voltage applications such as switchgears, primary substation switchgear, and distribution switchgear. It is used to protect feeders, junction points, bus bars, or other high current-carrying circuits. It is also used for power factor protection, as well as for protection against external faults, lightning, and overvoltages. In addition, the W28-X1015-3.70 can be used in transformer applications to protect the transformer from overload.

Working Principle

When a fault such as an overload or short circuit occurs, the W28-X1015-3.70 circuit breaker senses the abnormal current and trips, automatically interrupting the flow of power in the circuit. The circuit breaker is designed with two cut-off mechanisms: mechanical and thermal. The mechanical cut-off mechanism is designed to trip when a certain current level is exceeded. The thermal cut-off mechanism is designed to trip if the circuit continues to draw abnormally high current for an extended period of time. If a fault or overload occurs, the circuit breaker\'s thermal overload characteristic will begin to kick in, allowing for a current path to the fault point that is only just large enough for the protection of downstream equipment.

The W28-X1015-3.70 also offers protection against reverse current and spurious currents. Its fixed-time overcurrent (FTCO) feature provides protection against reverse faults, minimizing the possibility of damage from single-fault pickups. The W28-X1015-3.70 also features a programmable auto-reclose voltage, which is designed to automatically apply a safe level of voltage following a fault trip. This feature allows for circuit protection that is both effective and reliable.

In addition, the W28-X1015-3.70 offers the advantage of a high interrupting rating, allowing it to be used for high-energy applications. Its compact design also allows for easy installation in existing systems, whether it is installed in indoor or outdoor environments.

Overall, the W28-X1015-3.70 is an ideal choice for medium-voltage application protection. It is designed to provide reliable protection and safety, as well as affordability, ease of installation and maintenance.