AC Energy Produced: | 6648968.0 | kWh |
AC Current Phase A: | 243.0 | degrees |
AC Current Phase B: | 207.3 | degrees |
AC Current Phase C: | 254.0 | degrees |
Ambient Temperature: | 27.4º | Celcius |
Wind Speed: | 6.41 | knots |
Wind Direction: | 73.17º | |
DataLogger Temperature: | 31.97º | Celcius |
Cell Temperature: | 26.08º | Celcius |
Horizontal Irradiance: | 27.4 | |
POA Irradiance: | -0.17 | |
Start Date for Graphical Displays:
POWER GRAPHS
|
When capacitors or inductors are involved in an AC circuit, the current and voltage do not peak at the same time. The fraction of a period difference between the peaks expressed in degrees is said to be the phase difference. The phase difference is <= 90 degrees. It is customary to use the angle by which the voltage leads the current. This leads to a positive phase for inductive circuits since current lags the voltage in an inductive circuit. The phase is negative for a capacitive circuit since the current leads the voltage. The useful mnemonic ELI the ICE man helps to remember the sign of the phase. The phase relation is often depicted graphically in a phasor diagram. |
Power in an electric circuit is the rate of flow of energy past a given point of the circuit. In alternating current circuits, energy storage elements such as inductors and capacitors may result in periodic reversals of the direction of energy flow. The portion of power that, averaged over a complete cycle of the AC waveform, results in net transfer of energy in one direction is known as real power. The portion of power due to stored energy, which returns to the source in each cycle, is known as reactive power. |