프로젝트 개요
The equipment installation site is a large shopping mall, 쇼핑몰 광고판과 같은 다양한 전시 및 판매 영역으로 나뉩니다., 조명, 슈퍼마켓, 전시회 카운터, 등. A large number of single-phase loads and LED lighting and LED advertising display light equipment are used. These equipment generate a large number of The third harmonic of the system is superimposed in the N-phase cable of the system, causing a huge current in the N-phase cable of the system and causing cable heating.
배포 시스템 다이어그램
거버넌스 효과 분석
현재 데이터
Before the active harmonic filter is turned on, the load current waveform at the lower end of the incoming line switch deviates from the sinusoidal waveform. The effective value of the A/B/C three-phase current is about 170A, and the N-phase current is about 270A.
Before the active harmonic filter is turned on, the load current waveform at the lower end of the incoming line switch is processed and restored to a sinusoidal waveform. The effective value of the A/B/C three-phase current drops to about 150A, and the N-phase current drops to about 30A.
Before the active harmonic filter equipment is turned on, the total harmonic current distortion rate of the load current at the lower end of the dual power switch is about 65%, and the main harmonic distortion orders are 3/5/7 고조파 전류 왜곡.
After the active harmonic filter is turned on, the total harmonic current distortion rate of the load current at the lower end of the switch drops to about 5%, and the 3/5/7 major harmonic distortion times all drop significantly.
After installing our active harmonic filter (AHF), the harmonic current distortion rate of the load at the lower end of the 0.4KV low-voltage side switch in the shopping center has been significantly improved. The current flowing through the N phase has increased from about 270A to the initial level. , down to 30A, which greatly ensures the safety and stability of the system and reduces the occurrence of N-phase cable heating, insulation aging, and fire hazards.
태그: AHF, 활성 고조파 필터, active harmonic filter equipment, 공급 업체, 제조업체, 공장, 모조리, 구입하다, 가격, 인용, 대부분, 판매용, 회사, 재고, 비용.
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