. Electric railway journal . Monthey-Champery Railway—First Rack Section and accommodates 70 passengers. In choosing the motorequipment it was figured that for trains of this weight atractive pull of 6000 kg (13,200 lb.) would be required onthe maximum rack grade of 13 per cent and 2300 kg (5060lb.) on the maximum grade of 5 per cent where the rack sessed when running in parallel, the total output on therack sections is about three times that on the adhesionsections, a condition which corresponds to the grade con-ditions. The following table shows the tractive efforts ofthe motors under differ
. Electric railway journal . Monthey-Champery Railway—First Rack Section and accommodates 70 passengers. In choosing the motorequipment it was figured that for trains of this weight atractive pull of 6000 kg (13,200 lb.) would be required onthe maximum rack grade of 13 per cent and 2300 kg (5060lb.) on the maximum grade of 5 per cent where the rack sessed when running in parallel, the total output on therack sections is about three times that on the adhesionsections, a condition which corresponds to the grade con-ditions. The following table shows the tractive efforts ofthe motors under different conditions of speed:. Monthey-Champery Railway—Motor Passenger Car and Freight Trailer Going Down a Rack Section was not used. In other words, the maximum power neededon the rack grade would be nearly three times as greatas on the other sections. This condition led to the choiceof motor cars with four similar motors, two of whichwould be operated in parallel on rack and pinion sectionsonly, while the other two motors are connected to therunning axles of the car and are operated in series with km an hr. km an In.( ) ( ) Tola! tractive effort 6,000 kg (13,200 lb.) 3,000 kg (6,600 lb.) Tractive effort of rack motors. ■ . 4,140 kg ( 9,108 lb.) ;,ooo kg (4,400 lb.)Tractive effort of adhesion motors, 1,860 kg ( 4,0921b.) 1,000 kg (2,200 lb.) Current per rack motor 164:2 = 82. amp 95 :2 — amp Current per adhesion motor 77. amp 49. amp Total current 241. amp 144. amp Kacli motor car has two trucks, placed m ( ft.)( ( iiicrs and carrying one motor for each class of s
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