A 4 pole DC shunt generator with lap connected armature has field and armature resistance of 50Ω and 0.1Ω respectively, If the generator supplies sixty 100V, 40W lamps, calculate the total armature current the current in each armature conductor and the generated EMF. Take 1V per brush as contact drop.
Problem
Question
A 4 pole DC shunt generator with lap connected armature has field and armature resistance of 50Ω and 0.1Ω respectively, If the generator supplies sixty 100V, 40W lamps, calculate the total armature current the current in each armature conductor and the generated EMF. Take 1V per brush as contact drop.
Topic
DC Generators Problems
- A shunt generator has 4 poles lap wound armature having 24 slots with 10 conductors per slot. If the flux per pole is 0.04 wb and the speed is 1500 rpm, Calculate the EMF generated in the armature. What would be the generated EMF if the winding is wave connected?
- A 4 pole DC shunt generator with lap connected armature has field and armature resistance of 50Ω and 0.1Ω respectively, If the generator supplies sixty 100V, 40W lamps, calculate the total armature current the current in each armature conductor and the generated EMF. Take 1V per brush as contact drop.
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- An 8-pole lap connected armature has 960 conductors a flux of 40 mwb per pole and speed of 400 rpm. Calculate the EMF generated if the armature were wave connected, at what speed must it be driven to generate 400 V.
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- A shunt wound DC generator delivers 496 A at 440 V to load. The resistance of the shunt field coil is 110 Ω and that of armature winding is 0.02 Ω. Calculate the EMF induced in the coil armature.
- A shunt generator running at 500 rpm delivers 50 KW at 200 V. The armature and field resistances are 0.02 Ω and 40 Ω respectively. Calculate generated EMF if brush drop of 1 V per brush.
- An 8-pole DC generator has 500 armature conductors, and useful flux per pole of 0.065 wb. What will be the EMF generated if it is lap connected and runs at 1000 rpm. At what speed it must be driven to produce the same EMF if it is wave connected.
- An 8-pole lap connected armature has 40 slots with 12 conductors per slot, generate a voltage of 500 V. Determine the speed at which it is running if the flux per pole is 50 mwb.
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