Answer Question
Impedance[+] is < .000001% of Base Impedance.
I am using 3 x Single-Phase Voltage Source Model 1 to make an unbalanced 3 phase source. I get an error message: "Impedance[+] is < .000001% of Base Impedance."
- What does this mean?
- Where is the Base Impdence defined?; I have specified the volatage, but not base power, so as far as I can see Zbase is undefined.
- What do I have to chnge?
My paramaters are below. The terms in sqaure brackets are greyed out, so irrelevant.
Thanks, Dave
- What does this mean?
- Where is the Base Impdence defined?; I have specified the volatage, but not base power, so as far as I can see Zbase is undefined.
- What do I have to chnge?
My paramaters are below. The terms in sqaure brackets are greyed out, so irrelevant.
NAME | CAPTION | VALUE | UNIT |
Type | Source Impedance Type: | 2 | |
Ctrl | Source Control: | 2 | |
Vm | Rated Volts (AC:L-G | 76210.2 | Real |
Name | Source Name | Source1 | |
F | Base Frequency | 50.0 | Hz |
Tc | Voltage Input Time Constant | 0.001 | s |
Imp | Impedance Data Format: | RRL values | |
ACDC | Source Type: | AC | |
Exph | External Phase Input Unit | Degrees | |
Term | Specified Parameters | behind the source impedence | |
Es | Initial Source Magnitude (L-G | 132.79056 [kV] | Real |
F0 | Initial Frequency | [60.0] | Hz |
Ph | Initial Phase[ | [0.0] | deg |
Pac | Initial Real Power | [0.0] | MW |
Qac | Initial Reactive Power | [0.0] | MVAR |
Esd | Initial Source Magnitude | [100.0] | kV |
Pdc | Initial Real Power | [0.0] | MW |
R1s | Resistance (series) | [1.0] | ohm |
R1p | Resistance (parallel) | [1.0] | ohm |
L1p | Inductance (parallel) | 100.0 | H |
Z1 | Impedance Magnitude | [1.0] | ohm |
Phi1 | Impedance Phase angle | [80.0] | deg |
RN | Harm. # where phase is same as fundamental | 2.0 | |
Ia | Name for Current [kA] |
Thanks, Dave