Install power generator with ATS

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Posted in Reader question
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May 14, 2022

Dear readers,

I want to have a power generator installed with an ATS. Now my question is, for the people who have already had this done or have done it themselves, how do you know when PEA is active again and the generator can be turned off?

I want to operate the ATS manually, and not automatically because of the switching off of certain devices, which I do not consider necessary to have on and therefore not necessary for the capacity of the generator.

Since I want to turn this on and off manually, it would be nice to know when the power cut is over.

Please share your knowledge or experience.

Regards,

May

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7 Responses to “Installing a power generator with ATS”

  1. ruud says up

    Let's assume that your home is EITHER connected to the grid, OR to the generator.
    Then you could make a small lamp at the mains connection, which will light up when the mains has voltage again.

  2. Arjen says up

    Buy a “Phase Protector” They are also available for one phase. You can set under what circumstances such a thing finds the phase “unsafe”, and of course also when the thing finds it safe again. Just an on/off switch. (An output of a relay) So you can switch everything on it. A lamp, a siren.

    A small light alone doesn't seem like a good idea to me. A higher voltage is required to light a small lamp than to make the lamp burn. Once the light is on, it will also be able to stay on during a brown-out. Brownouts, as everyone knows, are more damaging to your equipment than a blackout is.

    For the same reason, do not use an ordinary relay. The coil of a relay quickly needs 200 Volts to switch on. But to lose weight, the voltage can drop to 80 Volts. Then the compressor of your refrigerator will soon break.

    Simply switch the “Phase Protector” so that everything turns off at a certain voltage (or time of an undervoltage)

    You can really just automate it completely. Simply leave the groups you don't want fed by your generator away from the connection on your ATS on the generator side.

    You really shouldn't want to do this kind of thing by hand. Arguments: "but I'm always at home" or: "I always notice when the power goes out" really don't count.

    Arjen.

    • May says up

      Hi Arjen, you apparently understand it, but I just want to know when the power cut is over.
      JUST FOR CLARITY: PEA — PHASE PROTECTION — ATS — FUSE BOARD.
      Or is this schematic wrong, am not an electrician

      If I install that phase protection as you indicate, the ATS will automatically turn off.
      I then want to manually transfer it to generator, because I first want to switch off the boiler and some other large power consumers. So I don't need such a big generator.

      If I install phase protection, does the ATS automatically go to PEA mode or do I have to do this manually when the power cut is over.
      If manually, I would have to check every time whether the phase protection indicates the correct numbers again. Or is there a “tool” that sends out a kind of signal when PEA returns.

      • Arjen says up

        I don't see a schedule….

        I probably don't understand your problem. A “phase protector” detects whether or not a phase is present. You can set yourself when you think the thing should give the signal that the ATS should be switched, at which limit voltage, and how long the voltage should be below that limit voltage.

        You can also set when the thing gives the signal that it has just returned. I have set myself that the thing will wait another 15 minutes after returning before I go back on the net. This is because experience shows that the net is very bad for the first few minutes (everyone's refrigerators, air conditioners, water pumps turn on at the same time)

        There are very expensive phase protectors that also keep a log. But I have a very simple one because my PLC already keeps a log.

        And you can determine which groups your generator feeds, right?

        I installed two MDBs myself. One is powered by my own power plant, OR by PEA. The other only by PEA. The groups in it therefore have no tension if the net fails.

        Arjen.

  3. Tony says up

    or a signaller that warns with a sound that the power is back?
    bv https://www.tme.eu/nl/details/ad16-buzzer_220v/geluidsalarmen-voor-panelen/onpow/ad16-22sm-220v/
    of https://www.techniekwebshop.nl/schneider-electric-merlin-gerin-opt-akoest-signaalgever-modulair-a9a15322-3606480327308-signaal-gever-module-akoes-melding-toontype-continu-toon.html if you want to mount it in the fuse box. There is plenty to find.

  4. Luc Muyshondt says up

    Or, unless you live in the middle of nowhere and there are no other houses within sighting distance, take a look around and see when those without a generator have light back on.

  5. Pete, bye says up

    If you use an ATS, you can see on it whether the electricity is back. These are 2 LED lights that light up through the electricity from the grid and when you use your generator, the 2 LED lights of your power source light up. This is how the ATS works for me. And I let it switch automatically no problem. Success with it.


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