It is this magazine editing specialty committee member Miku Murata, Shigeyoshi Sakai in a special feature

The item which was defined as quality of the one chapter electricity

This magazine editing specialty committee member Miku Murata

A factor and a principle to reduce quality judging from the supply side of the two chapters electricity and measures

About a 2-1 voltage change and a frequency change

[1] Frequency change to occur by disproportion of the supply and demand

Central Res. Inst. of Electric Power Industry Hiroyuki Amano

　　[2] Voltage control by the reactive power in the distribution system

Central Res. Inst. of Electric Power Industry Satoshi Uemura

[3] Characteristic change of the induction motor when the voltage, a frequency fluctuated

Yasukawa automation drive Takeshi Sakamoto, Yaskawa Electric Corp. Odo group way

It is Nichicon Corp. about a 2-2 voltage distortion

It is Tokyo Electric Power power grid about a 2-3 second voltage drop

Flicka outbreak mechanism with the 2-4 PV system

Sumitomo Densetsu Co.,Ltd.　 Yasuhisa Gomi

An outbreak principle and influence of the 2-5 voltage disequilibrium

Toenec Corp. Yu Fujita, Hiroshi Kobayashi

Influence and measures by the quality aggravation judging from the consumers side of the three chapters electricity

Influence on 3-1 control equipment Omron Corp. Michihiro Yamamoto of the power supply quality deterioration

It is Sumitomo Densetsu Co.,Ltd. Yuichi Yoshida about 3-2 voltage dip shops well

About 3-3 voltage disequilibrium

[1] Characteristics Chubu University Hiroshi mound success of the ministry of three induction motor under the disequilibrium voltage

[2] Measures example to the voltage disequilibrium  　　　Toenec Corp. Yu Fujita, Hiroshi Kobayashi

Influence on lighting equipment this magazine editing specialty committee member Miku Murata of 3-4 Flicka

Outbreak and the antenna effect of the four chapters noise and measures

It is Fujita professional engineer office Yoshimi Fujita with the antenna effect of the 4-1 electrical conductor

A 4-2 noise disorder and measures example (a noise trouble and measures of the X-rays CT device)

 denkenseikikenkyushoheidengenni

It is Fujita professional engineer office Yoshimi Fujita with the 4-3 electromagnetic environmental compatibility (EMC)

A shield (cover) and twist line as 4-4 noise measures

Fujita professional engineer office Yoshimi Fujita

Noise measures Fujita professional engineer office Yoshimi Fujita of the cable wiring for the 4-5 electricity instrumentation

Usage Fujita professional engineer office Yoshimi Fujita of a noise and the filter of the 4-6 power supply line

Fujita professional engineer office Yoshimi Fujita of a 4-7 LAN wiring standard and the construction concerned  

Technical promotion

I hold all Toenec Corp. 28th company technology research presentations

Toenec Corp. Mio Takatsu 

Exhibition report

From LIGHTING FAIR 2019 (the 14th international lighting synthesis exhibition)

Manabe professional engineer office Shizuo Manabe, Miyata energy management person office Shigekazu Miyata

On seeing SECURITY SHOW 2019 (the 27th security, safety management synthesis exhibition)

Manabe professional engineer office Shizuo Manabe 

Serialization

The spare time witty saying 432nd cherry blossoms and coat (the flower gets cold)

Committee member diver specialized in this magazine editing

- - 27 that I get the qualification even if busy that I did it this way and got a qualification

Kandenko Co.,Ltd. Kiyoshi Kaneko

―The article third to become - mind that an editing committee member chose

Introduction example of solar power plant wind damage measures

Hokuriku Electrical Construction Co.,Ltd. Kazuki Imai, ubikoki

Academic conference, the association introduction third Japan snow Japan Federation of Engineering Societies

Tohoku Electric Power Co., Inc., Japanese snow Japan Federation of Engineering Societies Shinji Okuda 

Essay

Starting farming for the year of electric facilities archeology grounding and the thunder protection

The law in conjunction with the lightning rod of the Episode 6 Meiji era

Nippon Chiko Takashi Shoda person

Is the electric facilities memoirs 205th late-blooming?

Moriyama professional engineer office Shigeru Moriyama

Look at the building walk whole country of the cultural heritage, and walk; 66

Yamagata Prefectural museum education museum (former Yamagata normal school Main Building)

A.S gijutsushijimushokaku* 

 

 

A cover photograph: Omron Corp., Toenec Corp., denkenseikikenkyusho, photo library offer