Q2 A DC shunt motor is connected to a 220 V supply. Figurel below shows the time/current characteristics with a resistance starter. If armature resistance is 0.120, a) What is the maximum current that is flowing in the armature at the instant of starting? b) What is the minimum current in the armature? c) How many sections does this starter resistance have? Show your work. d) Calculate the required starter resistance required to limit the current to the maximum value.

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Q2 A DC shunt motor is connected to a 220 V supply. Figurel below shows the time/current
characteristics with a resistance starter. If armature resistance is 0.12 0,
a) What is the maximum current that is flowing in the armature at the instant of starting?
b) What is the minimum current in the armature?
c) How many sections does this starter resistance have? Show your work.
d) Calculate the required starter resistance required to limit the current to the maximum
value.
270
162
13
t.
Transcribed Image Text:Q2 A DC shunt motor is connected to a 220 V supply. Figurel below shows the time/current characteristics with a resistance starter. If armature resistance is 0.12 0, a) What is the maximum current that is flowing in the armature at the instant of starting? b) What is the minimum current in the armature? c) How many sections does this starter resistance have? Show your work. d) Calculate the required starter resistance required to limit the current to the maximum value. 270 162 13 t.
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