March, 2018 issue
March, 2018 issue
": business of the harmonics II - report a special feature" Product number:2018年3月号 No.784 |
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The special feature called harmonics outflow calculation and yard measures" is made in this magazine September, 2015 issue. Therefore "the point of the revision, a circuit classification and a conversion factor, the greatest rate of operation, the correction coefficient by the scale of the building, the commentary of the check and yard problem and measures are included in contents by the process of the first edition establishment of the harmonics restraint measures technique guideline (JEAG 9702). But it is commentary-like contents and may be puzzled when I apply it in the real spot only by reading. Therefore I included calculation examples in the material as the practice-like contents which could perform a more practical report with the actual situation of the harmonics failure by the influence this time after having let the reader of the young person engineer be conscious of the need of the measures. It is said to have a young person engineer understand the mechanism of the calculation based on a concrete number about the commentary quantity of 1-generating of the check of the special feature, a 2-measures part in the last time.
In addition, I sell it about the reason and measures because the issue of harmonics may occur in the yard when I meet the standard of the harmonics spillage.
This magazine editing specialty committee Miku Murata, Naohiro Imamura, Shigeyoshi Sakai
1.With the harmonics
Fourier series expression of the 1-1 switching wave pattern
This magazine editing specialty committee Miku Murata
Difference of 6% of 1-2 series reactive coil and 13%
㈱SHIZUKI ELECTRIC Yoshinori Kataoka
Arm of a river model this magazine editing specialty committee Miku Murata of 1-3 harmonics
Recent tendency (obstacle outbreak example) of 1-4 harmonics
Nissin Electric Norihisa Nagasaki
2.Structure of the harmonics outflow electric current check (1)
This magazine editing specialty committee Miku Murata
3.Structure of the harmonics outflow electric current check (2)
The detailed calculation of the 3-1 harmonics outflow electric current and additional measures at the time of the measures judgment required
㈱SHIZUKI ELECTRIC Yoshinori Kataoka, Yuya Tamaru, Takuya Okada
Addition measures 2 in case of the 3-2 measures judgment required
SUMITOMO DENSETSU Yuichi Yoshida
Addition measures 3 in case of the 3-3 measures judgment required
SUMITOMO DENSETSU Yuichi Yoshida
4.Examination of the harmonics inflow to kamaenaisusumiso condenser facilities
Harmonics dosis tolerata standard of 4-1 susumiso condenser facilities
A document offer: NICHICON㈱
Calculation of the harmonics inflow to 4-2 susumiso condenser facilities
SUMITOMO DENSETSU Yuichi Yoshida
The choice of susumiso condenser facilities when I surpassed 4-3 dosis tolerata
㈱KANDENKO Hideo Sakamoto
5.Harmonics monitoring apparatus and measuring instrument
㈱KINDEN Koji Ishimatsu