How to choose the switchgear that suits your needs ?

Are you looking for switchgear for your new project? But confused about how to choose the right product for your needs?

Today’s market offers a variety of styles, sizes, and designs that can be used to help meet your energy needs. Although it may seem complicated at first glance. Take the time to carefully compare each type of switchgear related to your specific application. It will ensure that you find the power product that meets your needs.

In this blog post, let’s explore the key factors in choosing switchgear. So that you can make an informed decision that is best for you. Read on to learn more!

1. What is a power transformer and what is its function?

A switchgear is an electrical device whose main function is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and energy conversion in the power system.

Switchgear is usually called a complete set of switches or complete sets of power distribution equipment. With the circuit breaker as the core, according to the requirements of the electrical primary main wiring diagram, high and low voltage electrical appliances (including control, protection and measurement appliances) as well as busbars, current-carrying conductors and insulators are assembled in a closed or open metal cabinet, thus forming a key device for receiving and distributing electric energy in the power system.

The switch cabinet realizes the opening and closing operations of the power system through devices such as circuit breakers to ensure the normal operation and safety of power equipment.

The switchgear is equipped with primary and secondary solutions to clarify its power aggregation, distribution, metering and protection functions to ensure the stable operation of the power system.

The switch cabinet has operating procedures and mechanical and electrical interlocking mechanisms, such as protection functions, which can effectively prevent the occurrence of power accidents.

The metal shell of the switch cabinet is grounded to prevent people from approaching live parts and touching moving parts, and to prevent external factors from affecting internal facilities.

2 . Different types of switchgear            

There are many options for switchgear, appearance and size, suitable for a variety of application sites and industrial purposes. According to the voltage level, it is divided into high-voltage switchgear, medium-voltage switchgear and low-voltage switchgear. According to the structure, it is divided into fixed switchgear and withdrawable switchgear. According to the purpose, it is divided into distribution switchgear, control switchgear and capacitor compensation cabinet.

It is mainly suitable for various occasions such as power plants, substations, petrochemical industry, metallurgy and steel rolling, light industry and textile, factories and mines, residential areas, high-rise buildings, etc.

3.How to choose the switchgear that suits your needs?

1. Electrical parameters

The rated voltage must match the grid voltage, and the rated current should be selected according to the load current, and at least 20%-30% should be reserved for future expansion needs. The short-circuit tolerance should ensure that the current can be safely disconnected in the event of a short-circuit fault.

2. Protection level (IP level)

IP20 is suitable for dry, dust-free indoor environments (such as distribution rooms) and places with low environmental requirements. IP54 and above are suitable for humid, dusty or outdoor environments (such as mines and chemical plants).

4.How to install or replace the switch cabinet?

Check the basic dimensions (error ≤ 2mm), hoist in place after power off, level and tighten. Connect the ground wire, busbar and control wire in sequence, and remove the secondary wire first when replacing. Test insulation (≥1000MΩ) and mechanical operation.

5. Precautions for maintaining switchgear

Switchgear is an important equipment in the power system and requires standard maintenance to ensure safe and reliable operation.

Regularly check the tightness of the terminals and test the safety of the protection device; pay attention to cleaning the dust on the surface of the insulating parts and maintain good ventilation and heat dissipation; focus on monitoring the contact temperature to prevent overheating and cause failures. Establish maintenance files to track changes in equipment status.

Through standardized maintenance processes, the service life of the switchgear can be significantly extended and the stable operation of the distribution system can be guaranteed.

6. Conclusion

Following standard maintenance measures is essential to keep your switchgear in good working order. Regular inspections for loose connections, component damage, and overheating are key maintenance steps.

In addition, be sure to remove dust that has accumulated inside the cabinet and ensure proper heat dissipation and ventilation. By performing these basic but important maintenance measures, you will significantly extend the life of your switchgear and ensure long-term stable operation!