Electrical Engineering - RC Circuits - Discussion
Discussion Forum : RC Circuits - True or False (Q.No. 12)
12.
Apparent power is expressed in watts.
Discussion:
2 comments Page 1 of 1.
Balamurugan.C said:
1 decade ago
S=P+JQ
S-Apparent Power-KVA
P-Real/Active Power-KW
Q-Reactive power-KVAr
S-Apparent Power-KVA
P-Real/Active Power-KW
Q-Reactive power-KVAr
(1)
Sandy said:
1 decade ago
Both are power units. Voltage multiplied by current.
The difference is normally KVA has a power factor following it i.e., it is used in Ac measurements.
KW = Kilo volt * Current.
KVA = Kilovolt * Current * power factor.
When power factor =1, then KVA = KW.
The AC loads have characteristic called Power factor depending on the load whether it is inductive or capacitive. The power factor will be either lagging or leading which are opposite in polarity to each other in simple form.
The difference is normally KVA has a power factor following it i.e., it is used in Ac measurements.
KW = Kilo volt * Current.
KVA = Kilovolt * Current * power factor.
When power factor =1, then KVA = KW.
The AC loads have characteristic called Power factor depending on the load whether it is inductive or capacitive. The power factor will be either lagging or leading which are opposite in polarity to each other in simple form.
(1)
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