Increasing The Power Of The Turbogenerator In The Process Of Modernization In The Mining And Energy Industry

Abstract

In this paper the main focus is on the turbogenerator and positive changes in it. There is replacement the active steel end zone of the turbogenerator n.1 which operates in REK Bitola, with purpose to improve the condition of the turbogenerator from magnetic point of view during the modernization for increasing the power. Turbogenerator is type TVV 200-2A produced by “Elektrosila” – Russia. The stator winding is cooled directly with distilate. The rotor winding, the stator core and the housing are cooled with hydrogen. The reconstruction itself covers replacing more elements which are: Replacement of five end packs of each active steel end zone, which are manufactured in monolithic (backed) version and with successive reducing of its height. Reconstruction of the pressure rings with simultaneous installation of new enlarged copper screen on the pressure rings. Additional fingers for better tightness and intensifying the cooling of the end zones.Stabilization of the pressing tightness of turbo-generator core active steel with installing special spring devices so called pressure accumulators During the realization of the reconstruction special tools, devices and equipment have been used. Also for all examination which has been done protocols (test reports) have been made. Every test report consist from: test object, basis, and criteria of control, test results and conclusion on the test results.