슈퍼마켓 빌딩은 오래 전에 지어 졌기 때문에, 당시 전원 시스템 구성에서 고조파 문제가 고려되지 않았습니다.. When designing the distribution system, N- 상 케이블의 직경은 A/B/C 3 상 케이블의 직경보다 작았습니다..
At present, the distribution circuit on the first floor of the building has serious N-phase heating and excessive current problems.
분포 시스템 다이어그램 및 주요 고조파 하중
거기 있습니다 4 load outgoing cabinets in the on-site power distribution room, and the power consumption of the supermarket on the first floor is drawn from the 3# 그리고 4# 피더 캐비닛.
In the on-site power distribution structure, the power supply upstream of the 3# 그리고 4# 피더 캐비닛은 이중 전원 스위치입니다, which is a 4P switch.
The typical harmonic source equipment at this site is LED indicator lights. The initial manifestation of the problem was that the N-phase shell of the dual power switch was hot.
Harmonic Data Testing and Analysis
The incoming line cabinet behind the transformer was selected for testing to gain an overall understanding of the power quality issues on site.
Harmonic Compensation Solution
Because it is necessary to solve the heating problem of N-phase cables and switches in the supermarket on the first floor, and the main harmonic source equipment is in the supermarket on the first floor, a local control solution is selected to specifically control the harmonics of the 3# 그리고 4# feeder cabinets and reduce the N-phase current at the dual power switch position to solve the heating problem of N-phase here.
해결책: Choose our company’s active harmonic filter (AHF) equipment and install it in the distribution room for local treatment.
장비 선택: 활성 고조파 필터 (AHF)
장비 모델: 코포 APF/200-0.4-D
거버넌스 방법: 지역 치료
설치 용량: 200에이
설치 방법: 랙 유형
설치 위치: 발전실
Compensation Effect
After harmonic compensation by CoEpower AHF Active Harmonic Filter Equipment:
1. 시스템의 현재 파형이 크게 향상되었습니다, 원래 왜곡 파형에서 일반 사인파 파형으로;
2. The N-phase current dropped significantly from the original 251.4A to 17.2A, so the N-phase cable heating problem was solved;
3. The total harmonic distortion rate of the system dropped from 47.2% 에게 4.6%, 고조파 제어 효과는 중요했습니다.
태그: CoEpower AHF, 활성 고조파 필터, AHF 활성 고조파 필터, Harmonic Compensation Solution, 공급 업체, 제조업체, 공장, 모조리, 구입하다, 가격, 인용, 대부분, 판매용, 회사, 재고, 비용.
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