No. 1023
The present situation and the progressive trend of environmental conformity techniques for transformer
Investigating Committee on the progress of environmental conformity techniques for transformer
With regard to the power transmission equipment in urban area, the conditions of location are restricted highly in both the complicated society and the overpopulation. As the needs to non-inflammability and low noise increase socially, the concern about the environment for transformer has become gradually important.
There are dirt, pollution, vibration, noise, loss, environmental load, view, and so on, as the influences and problems to the environment for transformer. Many techniques have been developed and practiced to make the transformer conform to these problems.
About SF6 gas, KYOTO PROTOCOL (COP3) had been held at KYOTO in Dec., 1997. SF6 gas emission was regulated at COP3, therefore many countries began to obey this regulation.
On the one hand, the policies of decreasing environmental load such as “freedom of buying and selling electric power” , “law on promoting green purchasing” , and “law on RPS (Renewables Portfolio Standard)” were promoted. And regulation on climate change was also promoted. Therefore, techniques for loss decrease, application of material and assessment of environmental conformity are required.
Under the present circumstance, “The investigating committee on the progress of environmental conformity techniques for transformer” was composed, then the influences to the environment for transformer as well as the environmental conformity techniques were researched and investigated in the committee for two years from June, 2002.
In this report, influences, subjects and problems to environment for transformer become clear. And the environmental conformity techniques to be made are understood. Moreover, this report introduces the assessment guideline of environmental conformity and the guideline for application. Besides, this report introduces the future techniques and suggests the future choice as to the environmental conformity.

©2005. The Institute of Electrical Engineers of Japan