. Design of a direct current generator and switchboard for a farm power plant. 24 Dimensions [cont.) Yoke (cont.) numoer oi segment3 tip area of section 29 wiaxn oi segiaenx©useful depth of segment 1 in. Commutator. thickness of insulation diameter length of segmentover all 8 between segmentsperipheral speed(ft, per min.) 2520 area of cylindrical surface 82 active lensth of segment 2,25 Electrical Reactions Electrical circular mils per Armature ampere emf. per circuit, IR drop ^lost volts; no load 110 in armature O emf. per circuit, ohms brush to brush full load 110 at ou <j . U .
. Design of a direct current generator and switchboard for a farm power plant. 24 Dimensions [cont.) Yoke (cont.) numoer oi segment3 tip area of section 29 wiaxn oi segiaenx©useful depth of segment 1 in. Commutator. thickness of insulation diameter length of segmentover all 8 between segmentsperipheral speed(ft, per min.) 2520 area of cylindrical surface 82 active lensth of segment 2,25 Electrical Reactions Electrical circular mils per Armature ampere emf. per circuit, IR drop ^lost volts; no load 110 in armature O emf. per circuit, ohms brush to brush full load 110 at ou <j . U .uo uyps 01 wixiuing no. of turns per com- xglp Commutator mutator segment 2 average volts between amperes per circuit segments of winding frequency of commutation. Electrical Reactions (cont.) Commutator (cont.)amperes per of brush contact 40 ,4IR drop (lost volts) dueto brush contact 2 Field coils. type no. of coils in seriesmean length of oneturn total resistance (at 50 C.)amp. full load (shunt excit)rheostat resistanceIR drop in rheostat Compound Winding. no. of turns in series per coil. 7,5mean length of one turn 22total resistance (at 50 C.), full load taped4 22 26 circular mils per ampere 1050IR drop (lost volts) in series coil ampere conductors per pole 2680ampere cond. beneath pole 2050ampere cond. between poles 630ampere cond. per in. of periphery 342stiffness ratio conductors per pole 630reaction ampere turns per pole 315
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, bookyear1912
