A wave wound DC generator has 6 poles and the armature has 756 conductors. How fast should the armature rotate if the flux is 20 mWb per pole and 240 V is desired?
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- A dc machine has 4-pole, wave wound armature with 46 slots and 16 conductors per slot. If induced voltage in the armature is 480 V at 1,200 rpm, determine the flux per poleA 6 pole DC wave wound generator has 41 armature conductors with Flux per pole is 26 mWb and the e.m.f generated is 79 V, then the speed of machine is ?Q2. A 4-pole, wave-wound armature has 72 slots with two coil-sides per slot, each coil has four turns. If the flux per pole is 20 mWb and the armature rotates at 720 rpm, what is the induced emf across the armature? (Ans. 276.48 V)
- A 6 pole generator with wave wound armature has 50 slots each having 24 conductors. The flux per pole is 0.01 Wb. (i) At what speed must the armatur rotate to give an induced EMF of 230V is, (ii) What will be the voltage developed, if the winding is lap connected and the armature rotates at the same speed is?A 6-pole generatro has 600 conductors. If the flux per pole is 20mWb, at what speed must the armature be drive to generate 240V if a) lap wound connection, or b) wave wound connection.A 6 pole generator with wave wound armature has 54 slots each having 22 conductors. The flux per pole is 0.01 Wb. (i) At what speed must the armature rotate to give an induced EMF of 230V is, (ii) What will be the voltage developed, if the winding is lap connected and the armature rotates at the same speed is,
- An 4 pole, wave connected armature has 520 conductors and its generated e.m.f is 115 V. If the machine is driven at 600 rpm, then the flux per pole in Wb isQ2) A wave wound DC generator armature has six - pole and 50 slots. Each slot contains 20 conductors. The required generated voltage is 250 V. a) What would be the speed of the armature, if flux per pole is 0.007 Wb? b) If the armature is rewound as lap formation and run at the same speed you found in part a) above, what will be the generated voltage? The flux per pole is 0.007 Wb.a circuit armature of a 4 pole generator has 51 slots , each slot containing 20 conductors . What will be the voltage generated in the machine when driven at 1500r.p.m. , assuming the useful flux per pole to be 0.7*10^-2
- A four pole machines generates 250V when operated at 1500 rpm. If the flux per pole is 1.85 x 106 maxwell, the number of armature slots is 45 and the armature winding has two parallel paths. If the speed of the generator is reduced to 1350 rpm, what would be the generated voltage. To what value of flux per pole should the excitation be adjusted if the generated voltage is to remain the same at 250VA 4 pole armature of a DC machine has 175 conductors and a flux per pole of 0.1 wb. Find the EMF generated when running at 600 rpm, when the armature is Lap wound.25. A six-pole wave wound armature has 250 conductors when driven at 400 rpm, the emf generated is 260 V. What is the useful flux per pole?a. 50 mWbb. 48 mWbc. 52 mWbd. 55 mWb