Megawatt Inrush And Small Generators
In the interests of accuracy I have copied John Marles, comments verbatim and they appear below "Inrush is 50A/115VAC 50A/230VAC for a few milliseconds on the S-400 and S-350. Its controlled by due...
Forum Discussion
Yep. Not to be connected across an unswitched device.
Press button (clear so far?) Charge cap. Power supply has no power.
Then throw power switch to power supply
Power supply starts up
Listen and react to how the small generator reacts
Release capacitor charging momentary action button.
If the generator starts lugging harder with the capacitor out of circuit, then it would be best to leave it in.
Let me clarify something. Normally the power supply starts with the load attached. Yes the load can be disconnected via the low side. This means incorporating a decent sized relay into the circuit with 12-volt control. Augmenting the high side with a cap is cheaper, simpler, more reliable, just as "labor intensive" for management, and can when controlled correctly help to correct THD of the output waveform when it is under load.
Keep whistling the tune
Tiny generator. Crude stator.
This correction is not needed on generators that have a surplus amount of wattage available.
This correction is not needed with circuits that are not borderline loaded to capacity.
It is a specific remedy for a specific issue. E=MC2 theory works great unless the generator stalls or a breaker trips. Keep in mind the power supply goes to work the instant the power switch is thrown. Inrush + Load.
Yes the little pot can be turned back to eliminate load current. It is # 10 hassle to reset it.
Press button (clear so far?) Charge cap. Power supply has no power.
Then throw power switch to power supply
Power supply starts up
Listen and react to how the small generator reacts
Release capacitor charging momentary action button.
If the generator starts lugging harder with the capacitor out of circuit, then it would be best to leave it in.
Let me clarify something. Normally the power supply starts with the load attached. Yes the load can be disconnected via the low side. This means incorporating a decent sized relay into the circuit with 12-volt control. Augmenting the high side with a cap is cheaper, simpler, more reliable, just as "labor intensive" for management, and can when controlled correctly help to correct THD of the output waveform when it is under load.
Keep whistling the tune
Tiny generator. Crude stator.
This correction is not needed on generators that have a surplus amount of wattage available.
This correction is not needed with circuits that are not borderline loaded to capacity.
It is a specific remedy for a specific issue. E=MC2 theory works great unless the generator stalls or a breaker trips. Keep in mind the power supply goes to work the instant the power switch is thrown. Inrush + Load.
Yes the little pot can be turned back to eliminate load current. It is # 10 hassle to reset it.
