Hello again,
Here is a graph of L and R vs phase and current.
The first pic is the graph, the second (1a) is the same graph with an example.
The example goes like this...
1. Find the current 3 amps (two heavy green curves)
2. Find the phase 0.6 rads.
3. Draw a vertical line up from 0.6 rads until it hits the first heavy green line (thick light gray vertical line).
4. Draw a horizontal line from the intersection of that vertical line and the first heavy green line until it hits the y axis, read off the inductance (1.9H approximately).
5. Continue the vertical line (heavy black vertical line) until it hits the next heavy green line.
6. Draw a horizontal line from that intersection to the right hand side y axis, read off the resistance (2.8 ohms).
So the result for 3 amps and 0.6 rads came out to L=1.9 Henries and R=2.8 ohms.
Note the test voltage is 10 volts and normalized for angular frequency (w=1).
The graph scales up or down also.
For current:
If we had 30 amps then L=0.19 Henries and R=0.28 ohms (inversely scaled).
If we had 0.3 amps then L=19 Henries and R=28 ohms (inversely scaled).
For voltage:
If we used a 1v test voltage (I=3 amps) then L=0.19 H and R=0.28 ohms (proportionally scaled).
If we used a 100v test voltage (I=3 amps) then L=19 H and R=28 ohms (proportionally scaled).
For frequency (w=10):
v=10v, I=3 amps, L=0.19 (inversely proportional) R=2.8 (does not change)
Here is a graph of L and R vs phase and current.
The first pic is the graph, the second (1a) is the same graph with an example.
The example goes like this...
1. Find the current 3 amps (two heavy green curves)
2. Find the phase 0.6 rads.
3. Draw a vertical line up from 0.6 rads until it hits the first heavy green line (thick light gray vertical line).
4. Draw a horizontal line from the intersection of that vertical line and the first heavy green line until it hits the y axis, read off the inductance (1.9H approximately).
5. Continue the vertical line (heavy black vertical line) until it hits the next heavy green line.
6. Draw a horizontal line from that intersection to the right hand side y axis, read off the resistance (2.8 ohms).
So the result for 3 amps and 0.6 rads came out to L=1.9 Henries and R=2.8 ohms.
Note the test voltage is 10 volts and normalized for angular frequency (w=1).
The graph scales up or down also.
For current:
If we had 30 amps then L=0.19 Henries and R=0.28 ohms (inversely scaled).
If we had 0.3 amps then L=19 Henries and R=28 ohms (inversely scaled).
For voltage:
If we used a 1v test voltage (I=3 amps) then L=0.19 H and R=0.28 ohms (proportionally scaled).
If we used a 100v test voltage (I=3 amps) then L=19 H and R=28 ohms (proportionally scaled).
For frequency (w=10):
v=10v, I=3 amps, L=0.19 (inversely proportional) R=2.8 (does not change)
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