2210-S221-P1T1-H111-6A

Circuit Breakers

A circuit breaker is an electrical switch designed to interrupt the flow of an electrical current in the event of an overload, short circuit, or other ground fault detected in the circuit. The 2210-S221-P1T1-H111-6A series is a SF6 insulated medium voltage circuit breaker used primarily in industrial applications. It is an essential piece of equipment for electric power systems and is used for fault current limitation, overcurrent protection, and in some cases, other power system protections.

2210-S221-P1T1-H111-6A Application Field and Working Principle

The 2210-S221-P1T1-H111-6A circuit breaker is mainly used in the medium voltage range (up to 24 KV), in industrial and transmission & distribution (T&D) systems. It can be used in low voltage applications, too, though most applications of this type have already been replaced by more efficient circuit breakers such as vacuum circuit breakers. In any case, one of the main advantages of this circuit breaker is its low operating cost and long life expectancy, due to the successively improved and extremely durable SF6 insulation.

As far as the working principle of the 2210-S221-P1T1-H111-6A circuit breaker is concerned, the introduction of a medium such as sulfur hexafluoride (SF6) between the contact poles makes it possible to interrupt the flow of current even at very low values. This is due to the fact that SF6 has an extremely low dielectric power factor, which means that it can be compressed to create a virtual arc between contacts (even after arcing has initiated), providing for quick and reliable arc extinction.

The working mechanism is designed to operate in three distinct phases; the first is pre-arc, where the circuit breaker is closed and no current flows; the second is the arc phase, where an arc is created due to the contact pressure; finally, the post-arc phase is where the contacts are cooled and separated to interrupt the current.

The 2210-S221-P1T1-H111-6A circuit breaker also utilizes specialized standardization features, such as built-in safety devices which reduce the chances of a catastrophic failure. These features include short circuit protection, reducing the possibility of damage to the entire system due to high current flow, and power interruption in the event of an overload. In addition, the circuit breaker offers the ability to rapidly diagnose faults in the system, typically in less than 10 milliseconds.

The 2210-S221-P1T1-H111-6A circuit breaker is highly reliable and efficient, providing operators with the ability to save energy and long-term operation costs. The combination of its flexible design, impressive reliability, and expansive features make it an excellent choice for industrial and transmission and distribution systems.