Switchgear

What is Switchgear?

Switchgear is used both to de-energize equipment to allow work to be carried out and to protect the electrical system from damage caused by overcurrent or faults on the system.

Switchgear is an important part of any electrical power system as it provides the means to ensure that the system can be operated safely and reliably.

Different Types of Switchgear

There are many different types of switchgear, each with its own specific purpose.

Some of the most common switchgear used in electrical power systems include:

• Circuit breakers: Circuit breakers are used to protect electrical circuits from damage caused by overcurrent or faults on the system. Circuit breakers are designed to automatically trip, or open, when the current flowing through them exceeds a predetermined level.
• Disconnect switches: Disconnect switches are used to de-energize equipment so that work can be carried out. Disconnect switches are not designed to interrupt current, so they must be opened before any work is carried out on the circuit.
• Fuses: Fuses are another type of overcurrent protection device. Fuses are designed to blow, or open, when the current flowing through them exceeds a predetermined level. Fuses are a one-time use device, so they must be replaced after they have blown.

Applications of Switchgear

Switchgear is used in a wide variety of applications, including: