Document R23O2BmRp41yQKe5oqOo7RBKa

echanical Governing System Makes Rapid Response to Load Changes "Easy to Start...Simple to Adjust" Report Operators at New Person Station o*ce with power demands which have nearly jn the lost four years. Public Service of New recently put into operation its new semi* Person Station at Albuquerque. The first Oo the line, a duplicate of which is oow on l General Electric 20,000 kw unit,-gov* s standard G-E mechanical-hydraulic system. mse to load changes is fast...so fast that the speed will be held below trip speed even full load is dropped from the generator inwsly.* Because the governor does no actual icrthan to position a relay cylinder, accuracy Safety and dependability are increased by the insensitivity to din or changes in oil viscosity. Station operators find the governor ideal from their point of view. "The turbine Is easy to start because the handwheel requires almost no pressure," reports one. "It's simple to adjust the-settings--there's no lagging to pull off to reach the governing mechanism." Despite Us basic simplicity, the governor is flexible enough to meet a .variety of system requiremems.For instance, the turbine will "ride through" emer gency conditions when operating personnel need to attend other equipment in the station. Governing refinements arc a major G-6 contribu tion to power station efficiency---an additional assur ance that General Electric offers more turbine for the utility's investment dollar. leoder in Turfi/M Generator Progress GENERAL STEAM CONTROL VALVE HOW THI TUtftIMf OOVItMOt OfSRATd. During starting,the operator bring* the turbine up to rated speed by turning the bam/wbttf, The main pmmp tuppUe* oil to the system through the load limit pilot tw/vt. If the turbine tends to slow down with increased load.-the ctntri/mgal tpatxi govtmor, gear driven from the turbine'shsft, opens wider the primary pilot valve bushing to new position. Pressure s the main cylindtr which lilts the valvo gtar and alio steam to enter. When the main cylinder is lilted, it ,j . Vl* to its controlling /the system is in equi* new load. If the . to speed up on de- 'lie system operates in