Interested to Buy Any Domain ? << Click Here >> for more details...
why power factor occur only inductive load not in resistive ?
- 8 Answers
- 14471 Views
- I also Faced
- E-Mail Answers
Answer Posted / venkatesh a
Because of the inductive property of load connected in
source lagging power factor is created. When voltage is
applied across the load current starts following through
the load. Due to the induction effect current is stored as
magnetic field around the coil (0 to 90 degree). After the
90' voltage instantanous value reduces and the energy
stored in load is starts discharging (90 to 180').
Like this in all part cycle some time difference is
happens. Power= Voltage x current
If we multipling these values with respect to the time we
can understand that.
In Leading power factor voltage is stored in load. When
load is capacitance property. Here all so same charging and
discharging happens in load. And net power across the load
is getting reduced due the time difference.
BUT IN RESISTIVE LOAD, NO CAPACITANCE OR INDUCTIVE
PROPERTY. SO NO CHARGING AND DISCHARGING IN LOAD. SO NO
POWER LOSS. SO VOLTAGE AND CURRENT ALWAYS IN SAME DEGREE
VALUE. SO NO ANGLE DIFFERENCE BETWEEN THE VOLTAGE AND
CURRENT. POWER FACTOR= COS()
()= DIFFERENCE BETWEEN VOLTAGE AND CURRENT
If this angle is 0 means,
Power factor= cos 0'
cos 0'= 1
That means maximum power utilisation.
| Is This Answer Correct ? | 23 Yes | 0 No |
Post New Answer View All Answers
how to select the no. of brushes in a lap winding?
Why hydropower stations are preferred solution for meeting peak loads in grids?
how calculate the electrical load for industry and office
What is referred to the electron in the outer orbit?
how many joints are allowed in underground HT cable of 1 KM
What is the difference between in Fourier series and Fourier Transform. and please tell me the difference between both of them and the why we use them in communication system?
What is the difference between AC and DC injection methods for rotor earth fault protection
How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???
what parameters should we check to reduce the power bill
1. what is usage for power factor in industries?? 2.why we need to monitor power factor??
what are the sample questions asking to the test cunducting for electrical superwising lisence test?
What is the criteria that generally follow by distribution licenses to fix contact demand of their industrial customers?
Name two low frequency oscillators?
What is difference between Sample test and Routine test in safety standard?
what is the meaning of vcc
