system of the generator. In general, the changes 

 fell into three groups. The first group included 

 questions involving modifications in the technical 

 documentation for the working design of the turbine 

 generator. The answers to these questions, for the 

 most part, were handled by the electric power station 

 in collaboration with the organizations that helped 

 install the equipment and put it into operation. 

 Usually, by decision of the Chief Engineer of the 

 electric power station or the Moscow Regional Power 

 System Administration, a group of specialists was set 

 up to handle particular problems. The group included 

 representatives from the design, layout, assembly, 

 scientific research, and other organizations, as well 

 as the manufacturers of the primary and auxiliary 

 equipment. After this group of experts arrived at a 

 decision, the general designer made the appropriate 

 changes in the operating blueprints and the consignee 

 issued an order to the assembly and installation or- 

 ganizations to carry out the work. 



The second group of changes included technical de- 

 cisions regarding alterations in certain components 

 of the turbine installation. Responsibility for solv- 

 ing these matters lay primarily with the manufactur- 

 ers, who supplied the required new parts and attach- 

 ments. 



The third group of changes included problems that 

 were first identified during operation and layout, 

 involving aspects in the operation of the turbine in- 

 stallation that were not noted earlier. Here the 

 ministries of the consignee and of the equipment man- 

 ufacturer organized special expert commissions to ad- 

 dress the problems. One of the most serious diffi- 

 culties that arose during the initial period of in- 

 stalling and operating the turbine concerned poor vi- 

 bration stability of the turbine. In this instance, 

 a decision was made by the Scientific-Technical Coun- 

 cil of the Ministry of Power and Electrification, 

 with the approval of the Ministry of Heavy, Power, 

 and Transport Machine Building, to create a special 

 expert commission to tackle the problem. Representa- 

 tives from participating organizations in both minis- 



146 



