Suttons active power filters can be widely used in industrial, commercial and institutional distribution grids, such as: electric power systems, electrolytic plating enterprises, water treatment equipment, petrochemical companies, large shopping malls and office buildings, precision electronics companies, airports / harbors power supply system, medical institutions. Depending on the application object, the application of HTAPF-I active power filter will play a role in guaranteeing the reliability of power supply, reducing interference, improving product quality, increasing equipment life and reducing equipment damage.
■Communication industry
In order to meet the operational needs of large-scale data center server room, communication power distribution system in the use of UPS capacity in a substantial increase. According to the survey, the main harmonic source equipment of communication low-voltage distribution system is UPS, switching power supply, inverter air conditioner and so on. The harmonic content of their generation are high, and the displacement power factor of these harmonic source equipment is extremely high. Through the use of active filters can improve the stability of the communication system and power distribution system, prolong the service life of communication equipment and power equipment, and make the power distribution system more in line with the design specifications of the harmonic environment.
■Semiconductor industry
Most of the semiconductor industry's 3rd harmonic is very serious, mainly due to the use of a large number of single-phase rectification equipment in the enterprise. 3rd harmonic belongs to the zero-sequence harmonic, with the characteristics of the convergence of the neutral line, resulting in excessive pressure on the neutral line, and even the phenomenon of fire, there is a great production safety hazards. Harmonics also cause circuit breaker tripping, delaying production time. 3rd harmonic in the transformer to form a loop current, accelerating the aging of the transformer. Severe harmonic pollution is bound to have an impact on the efficiency and life of the equipment in the distribution system.
■Petrochemical industry
Because of the production needs, the petrochemical industry, there are a large number of pump loads, and many pump loads are equipped with frequency converters. The large number of applications of frequency converter makes the harmonic content in the power distribution system of petrochemical industry increase greatly. At present, the vast majority of inverter rectifier link is applied to 6 pulse will be converted to dc, so the harmonics generated by the 5th, 7th, 11th mainly. The main hazards are the harm to the power equipment and the deviation in metering. The use of active filters can be a good solution to this problem.
■ Chemical fiber industry
In order to significantly increase the melting rate, improve the quality of glass melting, as well as to extend the age of the furnace, energy savings, in the chemical fiber industry is often used in the electric heating equipment, with the help of electrodes to the electric power fed directly into the fuel-heated glass kiln. These devices generate a large number of harmonics, and the spectrum and amplitude of the three-phase harmonics vary considerably.
■ Iron and steel / medium frequency heating industry
Intermediate frequency furnaces, rolling mills, arc furnaces and other equipment commonly used in the iron and steel industry will have a significant impact on the power quality of the grid, so that the capacitor compensation cabinet overload protection action is frequent, the transformer and the power supply line heating is serious, the fuses are frequently fused, and so on, and even cause the voltage dips, flashover.
■Automobile manufacturing
Welding machine is an indispensable equipment in the automobile manufacturing industry, due to the randomness, rapidity and impact of the characteristics of the welding machine, the use of a large number of welding machines caused by serious power quality problems, resulting in unstable quality of welding, automation of high degree of robots can not work due to unstable voltage, reactive power compensation system can not be used normally, and so on.
■ DC motor harmonic control
Large DC motor sites are required to rectifier equipment to convert AC power to DC power, due to the load capacity of such projects are large, so there is a serious harmonic contamination in the AC side, resulting in voltage distortion, which can cause accidents in serious cases.
■Automated production lines and precision equipment
In the case of automated production lines and precision equipment, harmonics can affect their normal use, causing failures of intelligent control systems, PLC systems and so on.
■Hospital system
Hospitals have very strict requirements for the continuity and reliability of power supply, class 0 places automatic recovery of power supply time T ≤ 15S, class 1 places automatic recovery of power supply time 0.5S ≤ T ≤ 15S, class 2 places automatic recovery of power supply time T ≤ 0.5S, the voltage of the total harmonic distortion rate of THDu ≤ 3%, X-ray machines, CT machine, nuclear magnetic **** vibration are loads with very high harmonic content.
■Theater/Stadium
Silicon controlled dimming systems, large LED equipment, etc. are harmonic sources, in the process of operation will produce a large number of third harmonic, not only cause the power distribution system of the electrical equipment is inefficient, but also cause the light strobe, communication, cable television and other weak electrical circuits to produce a murmur, and even generate failures.