Mathcad - 07-19 - = T rated 5252 HP ⋅ RPM lb ⋅ ft ⋅ =...

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64% of the normal LR torque T LRredvolt 107.869 lb ft = T LRredvolt RedVolt 2 T LR = RedVolt 80 % = At reduced voltage, we get the %V squared times the normal LR torque T LR 168.546 lb ft = T LR Factor TLR T rated = Factor TLR 140 % = The minimum expected starting torque can be found from table 7-5: T rated 120.39 lb ft
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Unformatted text preview: = T rated 5252 HP ⋅ RPM lb ⋅ ft ⋅ = Rated torque can be found from rated horsepower and speed NEMA Code letter is G f 60 Hz ⋅ = RPM 1745 = η 93 % ⋅ = I L 115 A ⋅ = V L 200 V ⋅ = HP 40 = kVAR kW ≡ Problem 7-19: Solution kVA kW ≡ rpm 1 min ≡...
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This note was uploaded on 03/26/2012 for the course ECET 231 taught by Professor Piller during the Spring '12 term at Purdue University.

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