240v tripping

Discussion in 'Motorhome Chat' started by hymerman, Nov 13, 2013.

  1. hymerman

    hymerman Read Only Funster

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    When I plug in the external 240v lead the it keeps causing the trip to go in my house.
    .Been OK before but needed to charge the van engine battery as it is flat, and wouldn't start.
    Don't know how, but could the flat engine battery be causing the trip to go due to an initial large charging current.
     
  2. grasscutter

    grasscutter Funster Life Member

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    The charger in itself will not trip out the house. Something is shorting out.
    I think you will have to use a process of elimination.
    Plug just the lead into the house socket and see if it trips. If not turn off everything you can find in the van then plug it in and then turn things on one at a time until you hopefully identify where the fault is.
    Good luck.:thumb:
     
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  3. hymerman

    hymerman Read Only Funster

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    Thanks,
    The trip doesn't go until plugged into the van. Nothing is switched on in the van, but blows the trip in the house.
    When just using 12v in the van everything works fine.:cry:
     
  4. Ed Excel

    Ed Excel Funster

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    If there was a fault in your MH the circuit protection devices in the vehicle should have operated first. Hopefully all your circuits are protected?

    Usually, all your 230V circuits will be on when you plug in. Probably the only one you can switch easily is the charger supply. Try isolating all the miniature circuit breakers in your MH, then reset them one by one, similar to suggested previously.

    Is it an earth leakage breaker or a standard miniature circuit breaker in the house? What is the current rating?
     
    Last edited: Nov 13, 2013
  5. hilldweller

    hilldweller Funster Life Member

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    Try the lead on it's own.
     
  6. Allanm

    Allanm Funster

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    As above, I would try the lead on its own, and check the connections in both ends, you could have a loose wire or damage somewhere which trips the house electrics when you plug it in.

    Once you are sure the lead is ok, then start looking at the van electrics.

    Allan
     
  7. Ed Excel

    Ed Excel Funster

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    Hasn't Hymerman suggested he's tried the lead in post 3?
     
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  8. hymerman

    hymerman Read Only Funster

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    Yes ,tried the lead on it's own, all OK until connected to the van.
     
  9. bailey

    bailey

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    Plug lead in after you switch of all 240v electrical breakers,also make sure no appliances plugged in then switch on breakers one at a time if they are ok keep them on then plug in any appliances you had on one at a time
     
  10. Ed Excel

    Ed Excel Funster

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    Is there an echo in here???
     
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  11. bailey

    bailey

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    Not really didn't look at your post
     
  12. estcres

    estcres Read Only Funster

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    When you say "trip" do you mean the Miniture Circuit Breaker or the RCD (if fitted)

    I have known a surge of current to trip out a Miniture Circuit Breaker but this usually happens on low Amperage MCB's (Ie: A 1Amp MCB trips when a TV is plugged in)

    If you have an RCD fitted in the house, it could be what is called "out of balance load" and can be a bloody nuisance, quite often happens with fridges and freezers etc, items that switch on and off quite often.

    RCD's work on the principle that the Line and Neutral are balanced and will only operate when either the Line or Neutral go out of balance.

    It could be the Transformer in the 230/12 system is causing either a surge or an out of balance load.
     
    Last edited: Nov 13, 2013
  13. estcres

    estcres Read Only Funster

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    Hello (HHHeeellllooooo):Rofl1::Rofl1:
     
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  14. bailey

    bailey

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    Hhhheeeellloowwwwwww
     
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  15. hymerman

    hymerman Read Only Funster

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    Thanks, but nothing to do with the house RCD, thats working as it should, and works just fine with all the other house appliances, also no problem when any other external stuff used.
    Only the RCD on that circuit trips, and only when I plug into the van, with nothing switched on in the van.
    I'll start isolating at the breaker in the van tomorrow.
     
  16. hilldweller

    hilldweller Funster Life Member

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    Oops.
     
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  17. bailey

    bailey

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    That's the way to go eliminate one by one I think I've herd that some where else there is defitaly a eeecccooo
     
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  18. hilldweller

    hilldweller Funster Life Member

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    You might find a big blob of water somewhere near the van connector.
     
  19. estcres

    estcres Read Only Funster

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    Turn all the Circuit Breakers in the camper off and then plug in the mains lead, see what happens before you start switching on the CB's in turn.

    If your house trips before you switch on the camper CB's then it could be either a surge or "out of balance load" as the only thing which should be in circuit is the 230/12v system.
     
  20. gasman2008

    gasman2008 Read Only Funster

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    If the RCD is tripping you may have a short to earth, this may be minor such as a drip of water onto the electrics or more serious like a screw /nail touching a cable or insulation rubbed away. Do you have a multimeter? if so set it on resistance, highest scale (mega ohms) test from neutral to earth, if the fault was on the live it would most likely trip the MCB as well ( though not always, so if the neutral is ok try the live as well) test with all the breaker on, if the meter shows a circuit switch off the breakers 1 by 1 until the fault goes, then you should know which circuit is at fault.:Angry: Possibly, because all the neutrals are linked in the consumer unit this may not show the fault. If you feel up to it, disconnect the neutral wires 1 at a time while testing. If you think this is too much or you still cannot find the fault you will have to get an electrician to check it. Good luck :thumb:
     
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