It is said that the groval warment has been much progressed these days, and the energy saving is taking position for it much greater then ever before.
At Nomachi Mill, the energy saving action programs in care of all employees have been annually taken and getting effective achievements. For an instance, in a year of 1997, it has been saved by 945 kW of electricity in a thirty activities, and 165 k
l/month of heavy fuel oil in two activities. With new facility installations, such as Oxygen reactor, and coater machine, it seems to be a very energy crisis with higher demand of energy consumption. The energy saving is tool for control of the environmental improvement at the higher demand of energy consumption, and taken in action of several programs in manners of the inverter control, flow improvement, high efficiency machine in use and alternative operation.
The inverter control system is most widely approved as the main tool of energy saving. So for, a low voltage converter was applied to control a high voltage motor in manner of low voltage regulated. But, presently the high voltage direct inverter control has been developed and come in handy with reasonable prices, and at Nomachi Mill, two high voltage direct inverters have been installed.
Following are for an application explanation.
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