Kaiyong pharmaceutical

Status analysis

1, the main load in the field is large power equipment. The harmonic current exceeds the standard seriously, there are 3, 5, 7, 9, 11, 13 harmonics, among which 3 and 5 harmonics are the most serious.
2, reactive power compensation equipment operation noise is larger. The total compensation capacity is 720kvar and is equipped with a reactor with a reactance rate of 7%.
3, the harmonic current of the 1# transformer is up to 158.7 amperes, and the harmonic current of the 2# transformer is 55.6 amperes.
The data collected on the spot are as follows:
1# transformer

2# transformer

Governance measures
According to the above data, and in combination with the various factors in the field, our plan is as follows:
To keep the existing equipment unchanged, replace the damaged capacitors. A three-phase four wire filter product is installed between the 1# transformer and the 2# transformer load and capacitance cabinet, which is installed at the end of the outlet cabinet.
The load of 1# transformer is large and the content of harmonic is high, and the YBYAPF1-200 type product is used. The load of 2# transformer is light and the content of harmonic is relatively low, and the YBYAPF1-100 type product is used.

Treatment effect
When the load is run, the total current distortion rate decreases to less than 7%. The noise is obviously reduced and the compensation equipment works well.