Electrical

Electrical Engineering, Control Panels and Alternative Energy.

Electrical Engineering encompasses Everything in Electronics. Communications, Computers etc. are further specializations of Electronics. So it is best to Identify Electrical Circuits with Electrical Designs which excludes Active Devices. It can include Electronic Products in the form of wireable modules.

So House and Factory wiring, Appliances like Ovens, Toasters, Power Generation and management; all these are electrical. Motors, Generators, Connectors, Relays, Contacters and Circuit Breakers are Electrical Components.

See a diagram i made for a Sequential Process Control Unit, custom built for Vacuum Impregnation;

Sequential Process Control - Vacuum Impregnation

A Radio or Power Inverter is Electronic. When an Inverter or Electronic AC-DC Motor Drive is used in a Control panel or Power Supply system, that integration is shown as an Electrical Circuit. I feel Simple Consumer Electronic Circuits using Diodes, Transistors, SCR, Capacitors and Resistors can also be taken under electrical circuits; when they are used in Mains-Power or Household Appliances. Solar Energy related circuits also can be studied under Electrical Power Circuits.

In Electronics RF-Microwave and Communications is a specialization area, Computer Hardware, Software, Internet form another major domain. Networking and Wireless data communication overlaps both the above.

Power Electronics and Instrumentation are fundamental domains needed for many. Industrial Automation with Process Control Instrumentation is unique, but is supported by the fundamental domains. Many more finer areas like Robotics and Medical Electronics have a much sharper focus.

Basic Electrical Circuits – delabs

Hitachi is a highly diversified company with products and solutions in High Functional Materials & Components, Power Systems, Electronic Systems & Equipment, Automotive Systems, Digital Media…

Hitachi – Engineering and Technologies

Hitachi was founded in 1910 by electrical engineer Namihei Odaira. The company’s first product was Japan’s first 5-horsepower electric induction motor, initially developed for use in copper mining. Odaira’s company soon became the domestic leader in electric motors and electric power industry infrastructure

Hitachi J100 adjustable and Variable frequency drive

Hitachi J100 adjustable and Variable frequency drive. Photographed by C J Cowie

Hitachi at Wikipedia

Hitachi has contributed immensely to semiconductor and electronic manufacturing technologies.

  • 1958 Completed six-transistor miniature portable radio
  • 1959 Completed electronic computers based on transistors
  • 1966 Developed LTP processing technique for silicon transistors
  • 1978 Experimental color camera with solid-state miniature image device developed

Hitachi History

1976 Hitachi portable VTR, for Sony 1″ type C; the source and take-up reels are stacked for compactness.

HITACHI 1 Zoll-C-Maschine - Video tape recorder

HITACHI 1 Zoll-C-Maschine – Video tape recorder

In 1876, Thomas Alva Edison opened a new laboratory in Menlo Park, New Jersey. Out of the laboratory came arguably the most famous invention of all-a practical incandescent electric lamp. By 1890, Edison had organized his various businesses into the “Edison General Electric Company.”

General Electric Company – GE

General Electric 40W light bulb.

General Electric 40W light bulb.

“Charles Proteus Steinmetz, already a distinguished industrial scientist, was hard at work as GE’s chief consulting engineer. After years of persuasion, Steinmetz convinced the GE leadership that the company would need a research laboratory to maintain its edge in lighting and electricity and also finding new areas to grow.” – Heritage of Research

Charles Proteus Steinmetz

Charles Proteus Steinmetz He made ground-breaking discoveries in the understanding of hysteresis that enabled engineers to better design electric motors for use in industry.

Siemens is one of the world’s largest technology companies. Siemens has six major business divisions: Communication and Information, Automation and Control, Power Generation, Transmission and Distribution, Transportation and Automotive, Medical, and Lighting.

Siemens – Industrial Technology

Siemens & Halske was founded by Werner von Siemens and Johann Georg Halske on 12 October 1847. Based on the telegraph, his invention used a needle to point to the sequence of letters, instead of using Morse code. The company, then called Telegraphen-Bauanstalt von Siemens & Halske, opened its first workshop on October 12. – Wikipedia – Siemens

Analog Integrated Circuits 1976 – Siemens

Analog Integrated Circuits 1976 - Siemens

In 1999, Siemens’ semiconductor operations were spun off into a new company called Infineon Technologies.

In 1881, a Siemens AC Alternator driven by a watermill was used to power the world’s first electric street lighting in the town of Godalming, United Kingdom.

Siemens Console 1988

Siemens Console 1988

Siemens Industry Automation and Drives

Complete and integrated line of products, systems and solutions for production and process automation. Customized automation solutions based on Totally Integrated Automation (TIA) and Totally Integrated Power (TIP).