Power Transmission – Distribution

Hitachi was established in 1910, and shipped its first power transformer the same year, a small 5kVA single phase model. Since then, Hitachi has developed the technology to meet the increased demand for electric power, regularly manufacturing and delivering units with power capacity up to 3,000MVA and voltage up to 1,000 kV, all over the world.

Hitachi has taken the challenge to meet not only capacity and voltage needs, but the wider needs of a changing society as well.

Hitachi power transformers feature higher quality and reliability, lower loss and operating noise, shorter delivery time, lighter transport weight and smaller installation area than ever before. Additionally, we are developing transformers that will meet the needs of new systems such as the HVDC (High Voltage Direct Current) power system.

Hitachi is also devoting a great deal of attention to various environmental issues, developing low-noise transformers that operate harmoniously with the natural environment. For our efforts, Hitachi was awarded the coveted ISO 14001 certificate.

Today, confident in our role as one of the world's leading manufacturers of power transformers, Hitachi takes great pains to manufacture products that will consistently satisfy the changing needs of our customers and society all over the world.

A consistent power supply is crucial to the smooth operation of an electrical power plant. As even a moment's interruption in this supply can be harmful, Hitachi Kokubu power protection and control systems ensure complete power continuity. With advanced digital, algorithmic, engineering, and optical communication technologies, these systems meet the requirements of even the most complex, large-scale electrical power plants.

To ensure stable, high quality power, plant systems connections must be flawless. We therefore develop and manufacture stationary reactive power compensators, frequency converters, and DC power delivery systems that guarantee optimum connections. Our electrical systems, moreover, feature highly advanced digital protection and control technologies.

With Conventional high voltage synchronization systems the generator is directly connected to the main transformer. All of its operations including output synchronization are then controlled by the high voltage side circuit breaker. Furthermore, to start from the high voltage transmission network specifically, the special starting transformer which is controlled by the high voltage circuit breaker.

Low voltage synchronization systems greatly simplify upon this concept. For example, switching equipment, installed between the generator and main transformer, control synchronization operations. This type of system offers the following primary advantage:

Gas Circuit Breakers (GCB) and Gas-Insulated Switchgear (GIS) are two technologies which exploit sulfur hexafluride's (SF Gas) superior insulating and arcquenching properties. Although both have been in practical use for over 30 years now, GIS has become the prevailing standard due to the following outstanding characteristics:

Gas Circuit Breakers (GCB) and Gas-Insulated Switchgear (GIS) are two technologies which exploit sulfur hexafluride's (SF Gas) superior insulating and arcquenching properties. Although both have been in practical use for over 30 years now, GIS has become the prevailing standard due to the following outstanding characteristics:

Since their development in 1964, Hitachi Metal-Clad Switchgear, using vacuum circuit breaker technology, have been supplied to and are in use in electric power facilities the world over. Providing rapid and safe interruption even of heavy fault currents, these switchgears have earned their reputation for reliability, safety and easy maintenance. They continue to prove themselves in applications throughout the world, satisfying users who demand the highest standards of performance.

Hitachi, Ltd. was initially founded in 1910 as an electric repair shop. Hitachi was the first to manufacture electric motors in Japan in 1914. Today, Hitachi manufactures state-of-the-art motors and motor products ranging from the smallest micro motors to the largest motor and generator sets available anywhere in the world.

Submersible pump motors: A complete range of submersible pump motors ranging in size from 6 inches through 14 inches and in ratings of 5 hp through 300 hp is available through Sun-Star Electric, Inc., web site at http://www.sunstarusa.com

Motors Less than 250 hp: Hitachi general purpose motors less than 250 hp are not available from Hitachi Canada, Ltd. For further information on general purpose and other motors not listed on this page please visit the product locator on the Hitachi, Ltd., web site at: http://www.hitachi.co.jp

Motors greater than 250 hp: A complete line of Hitachi motors above 250 hp are available through Hitachi Canada, Ltd.