Why voltage dips are the hotspot of power quality research

Short-circuit faults, large-capacity equipment startup or switching, lightning strikes, etc. are the most important causes of voltage dips. With the continuous development of the national economy, a variety of precision instruments and equipment put into use, the voltage requirements are getting higher and higher, the voltage drop in the relevant industries and equipment in the impact is shown below:

1, the automotive industry: in the automotive industry, a large number of industrial robots, controlled by robots on the metal parts of the drilling, cutting, and other precision machining or spraying equipment, if the voltage drop occurs event, it will cause the robot malfunction, resulting in product scrap.

2, semiconductor, precision electronics and other industries, the occurrence of voltage drop, if the equipment on the power supply voltage changes can not be made in time to take action, there can be triggered by failure. The equipment stops working and the quality of the produced products decreases. Can cause the entire product line to stop running, resulting in chips, motherboards are destroyed.

3, programmable controllers: when the voltage appears to drop, PLC stop working or cut off the action, resulting in equipment malfunction, causing the rate of defective products to increase in the light of the seriousness of the machine will cause failure, damage.

4, paper, plastics, glass, chemical fiber and other industries, is the frequency converter, servo system used more occasions, the motor will be due to voltage dips and quit running. Equipment out of operation will bring huge losses to the enterprise.

5, mobile communications, communication rooms, etc., when the voltage drop occurs, resulting in communication failures, severe cases will cause irreparable damage.

At present, the voltage drop problem has been to the domestic petrochemical, semiconductor, paper, chemical, pharmaceutical, textile and other industries has caused billions of dollars of annual direct economic losses, resulting in indirect losses is incalculable. So find out the root cause of the voltage drop, to carry out power quality control has been urgent.

As industrial users have more knowledge of power quality, companies are also paying more attention to power quality. For example, automotive industry, semiconductor, precision electronics and other extremely sensitive to power quality of the enterprise, are required to use online power quality monitoring devices such as Zhiyuan electronic E8000, E8300 for long-term monitoring of power quality. For some of the power quality problems, but not particularly sensitive business users, you can use the E6000 portable power quality analyzer to monitor the power quality of the enterprise power grid and equipment, and find the existence of power quality problems.