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a 25 kva 2200220 v 60 hz single-phase transformer has the following equivalent-circuit parameters referred to the
1 a two winding transformer is rated at 50 kva the maximum efficiency of the transformer occurs when the output of the
a three phase transformer delivers a load of 83 mva at 08 pf lagging and 138 kv line-to-line the primary voltage under
solve problem 47 using matlabtm for a power factor of 07problem 47a 500 kva 23001230 v single phase transformer
a 500 kva 23001230 v single phase transformer delivers full rated kva at 08 pf lagging to a load at rated secondary
the no-load input power to a 50-kva 23001230-v single-phase transformer is 200 va at 015 pf at rated voltage the
determine the capacitive reactance in ohm miles for the line of problem 57 assume the conductors outside diameter is 16
the following information is available for a single-circuit three-phase 345-kv 360 mega volt amperes mva transmission
for the transmission line of problem 524 calculate the sending-end voltage sending-end current power and power factor
a 650-km 765-kv 60 hz three phase transmission line has a series impedance z 00185 j03170 omegakm and a shunt
a an open circuit test is conducted at the receiving end of a 500 kv 60 hz three phase line ir 0 with the receiving
determine the capacitive reactance in ohm miles for the line of problem 53 assume the conductors outside diameter is
determine the capacitive reactance in ohm miles for the line of problem 52 assume the conductoramp39s outside diameter
1 calculate the inductive reactance in ohms per mile for 345-kv double-circuit bundle-conductor line with two
the full-load slip of a squirrel-cage induction motor is 006 and the starting current is five times the full-load
the output torque of a single-phase induction motor is 082 n m at a speed of 1710 rpm the efficiency is 60 percent and
for the motor of problem 621 assume that the core losses are 35 w and the rotational losses are 14 w find the output
the stator resistance of a single-phase induction motor is 196 r and the rotor resistance referred to the stator is 36
1 assume for a 3-phase induction motor that for a certain operating condition the stator i2r rotor i2r core loss
a six-pole 60-hz three-phase wound rotor induction motor has a rotor resistance of 08 omega and runs at 1150 rpm at a
1 the slip at full load for a three-phase induction motor is 004 and the rotor current at starting is 5 times its value
consider a 25-hp 230-v three-phase 60-hz squirrel cage induction motor operating at rated voltage and ftequency the
1 a two-pole 60-hz induction motor develops a maximum torque of twice the full-load torque the starting torque is equal
the rotor resistance and reactance of a squirrel-cage induction motor rotor at standstill are 014 ohm per phase and 08
a 500-kv 60 hz three-phase transmission line is modeled using the exact a b c and d parameters it is known thatz is the