1300900073

1300900073 application field and working principle

The 1300900073 type belongs to the field of power control switchgear. It is a 12-pole enclosed switchgear, suitable for three-phase alternating current 50 Hz power distribution, with a rated voltage of AC 690V and power distribution in places with frequent operation requirements. This type of switchgear can also be used in places where hazards are present when properly applied.

The 1300900073 switchgear is composed of two main parts. The control part is composed of low-voltage switchgear panels, including circuit breakers, contactors, motor starters, etc .; the power part is composed of high-voltage switchgear panels, including isolating switches, grounding switches, vacuum contactors, and associated protection components. The two are connected by a control line.

The 1300900073 switchgear adopts a closed box structure, which has strong dustproof and moisture-proof performance. It also includes protection and control functions such as under-voltage protection, over-voltage protection, short circuit protection, etc., which can protect the safe operation of systems. It has good mechanical, electrical and thermal characteristics, and its insulation performance meets the relevant standards. In addition, its long service life, convenient maintenance and low operating and maintenance cost make this switchgear more and more popular in the industry.

In order to ensure reliable operation of the 1300900073 switchgear, its working principle is mainly based on the mechanical principle, supplemented by electromagnetically-controlled devices. When the electric current removes, the main contacts of the switch act together, breaking the current circuit. At the same time, the main contacts and the fixed contacts separate, making it impossible for the current to flow from the main contacts to the fixed contacts. When the electric current passes through, the two winding coils of the electromagnetic contactor are magnetized at the same time, and the main moving parts (roller and rod) of the drive mechanism are attracted to the coil and act against each other. Simultaneously, the main contact and the fixed contact migrate, allowing the current to flow through.

The 1300900073 switchgear is widely used in the industrial and mining industries, national defense industry, transportation departments, petrochemical plants, oil depots, electric power plants, manufacturing plants, energy and power systems, and other places that require power distribution and control. In these places, the switchgear plays an important role in controlling the power system, protecting equipment from damage, and ensuring the normal operation of the equipment.