LeButch

modified 7 years ago

Power outage generator

384

05:33:09

This circuit activates the breaker any house when you plug it in press the button. If it does not, you should defently check your RCD is working correctly. Also, you can pop the breaker anywhere you want to. You have to do a presentationin school today? No, not today I believe >:D

The ground on the right represents the ground wire. The sides of the voltage source are eigher phase or neutral wire.

Important: ALWAYS short both capacitors when tinkering at this device after it was pluged in. Keep the whole circuit covered in an isolated box (not the button obvsly) when pluged in. Be sure none of the three wires touch each other at any time. Do not build this if you are not afraid of 230V AC!!!

published 7 years ago

skontek

7 years ago

Cool

hurz

7 years ago

not all houses do have an RCD but in case there is one it depends on its trap current which is in most households 30-40mA. This circuit here draws 34mA. You write 325V AC but mean 230V AC, V is per default rms and peak must be marked e.g. 325Vpeak. I would remove the inrush protecting resistors

LeButch

7 years ago

Mal ne dumme Frage: löst Blindstrom auch den FI Schalter aus? Mein Prof hat mal erwähnt dass es nicht so währe, aber das kommt mir komisch vor.

wyoelk

7 years ago

Normally not a good idea to intentionally force breakers to trip by shorting them out. Why not rubber gloves and a piece of copper and jam it in the outlet. Wear and tear on them playing and then when needed, house goes up in flames. Stupid idea!

kiani

7 years ago

This is no book: what do books matter! What do coffins and shrouds matter! This is a will, this is a promise, This is a last bridge to break, This is an ocean wind, an anchor-weighing, A surging wheel, a steering course, The cannons roar with white gunsmoke, The sea laughs, the monster — — Translation by The Nietzsche Channel © 2009.

hurz

7 years ago

welcome back @kiani!

kiani

7 years ago

"it's nice to see you nice" as ever. Thank you @Hurz.

LeButch

7 years ago

@wyo thats why I use these capacitors to limit the current.

LeButch

7 years ago

@Kiani it was really nice and peacefull when you were away. Just think why that is the case.

kiani

7 years ago

Noticed you were bored,. Boredom is peace being lazy.

sshsslfun

7 years ago

Not exactly, ideas can be created through boredom

LeButch

7 years ago

We were not bored, we ware friendly. Please dont start again.

hurz

7 years ago

Mein RCD auf dem Arbeitstisch ist für 30mA spezifiziert aber löst auch mit exakt 342nF (etwa 25mA) und 47 Ohm gegen Erde aus. Dem ist egal ob das Strom durch einen Kondensator oder Widerstand ist. Hauptsache es ist ein Fehlstrom gegen Erde. Wenn ich dagegen 30uF zwischen phase und neutral habe, also nur Blindstrom aber kein Fehlstrom, löst er natürlich nicht aus. Nur wenn er auch als Überstromschutz gebaut ist, also wie eine Sicherung. Dazu bräuchte ich dann aber einen deutlich grösseren Kondensator. 554uF für 40A.

LeButch

7 years ago

Hab ich mir schon gedacht dass das doch funktioniert. Na gut, dann ist die Schaltung günstiger.

kiani

7 years ago

@lebutch you call this electronics?! Plus two negatives makes positive. " do not built this if you are not afraid of 230 v ac". There are two (not,s). other eg. I don't know nothing. Is slso wrong. ( has two negatives). Ok!?

kiani

7 years ago

@sshsslfun yes ideas can be created out of bordom. But good ideas are born out of relaxing in a tub of water. Rrlaxing and bordom are not the same thing, bored people need to relax do they get good ideas to make them not bored.

LeButch

7 years ago

Yes, I want you to only build this when you are afraid of 230V AC. What is so hard to understand?!

kiani

7 years ago

So should i not build it if i am not afraid of 230 volts?!

LeButch

7 years ago

You got it.

kiani

7 years ago

It is a useful thing to have in a tool box.

hurz

7 years ago

for a toolbox it also must trap 120V 60Hz which it will not in this configuration for 30mA RCDs. But it wasn't made for a "test toolbox"

wyoelk

7 years ago

I can never think of a good reason to short a circuit except too lazy to walk over and manually do it. Like you said if it does NOT, check blah blah. Or as your circuit has no fail safe buit in, it does what? If your thing doesn't trip the breaker? House on fire? Kids and spouse burn to death? All possessions lost? Thats why the NEC and IEEE do not have such a stupid, no idiotic, item anywhere in the studies, books or publications!

hurz

7 years ago

@wyoelk, you know what a RCD is for? RCDs itself have builtin a circuit to test the correct function. Before i work under power conditions i check the correct function of the RCD and if it traps at 25mA instead of 30mA even better, cuz it hurts if you need 5mA more to trap it. I recommend to use 20mA ones.

kiani

7 years ago

https://www.researchgate.net/publication/229034573_Series_connection_of_power_switches_in_high_input_voltage_with_wide_range_power_supply_for_gate_driving_application

LeButch

7 years ago

@Wyo the good thing about this circuit is, that it does not catch fire when the breaker doesnt work. There are only 30-40mA flowing.

hurz

7 years ago

RCDs do not protect your house against fire. This is the job of the overcurrent protection (normal breaker). RCDs do protect you to get an deadly electroshock.

add comment in editor