hey there
i have this problem :
A group of small appliances on a 60 Hz system requires 20kVA at 0.85 pf
lagging when operated at 120V (rms). The impedance of the feeder
supplying the appliances is 0.01 + j0.08Ω. The voltage at the load end of
the feeder is 120 V.
1. What is the rms magnitude of the voltage at the source end of the feeder?
2. What is the average power loss in the feeder?
3. What size capacitor (in microfarads) at the load end of the feeder is
needed to improve the load power factor to unity?
4. After the capacitor is installed, what is the rms magnitude of the voltage
at the source end of the feeder if the load voltage is maintainedDW V?
5. What is the average power loss in the feeder for part d ?
well ,
P = S cos@
S = V rms * I rms
S is already given
so i can get the power across the feeder
inform me if im wrong
the rest i would someone helps me
i have this problem :
A group of small appliances on a 60 Hz system requires 20kVA at 0.85 pf
lagging when operated at 120V (rms). The impedance of the feeder
supplying the appliances is 0.01 + j0.08Ω. The voltage at the load end of
the feeder is 120 V.
1. What is the rms magnitude of the voltage at the source end of the feeder?
2. What is the average power loss in the feeder?
3. What size capacitor (in microfarads) at the load end of the feeder is
needed to improve the load power factor to unity?
4. After the capacitor is installed, what is the rms magnitude of the voltage
at the source end of the feeder if the load voltage is maintainedDW V?
5. What is the average power loss in the feeder for part d ?
well ,
P = S cos@
S = V rms * I rms
S is already given
so i can get the power across the feeder
inform me if im wrong
the rest i would someone helps me
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