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Drive an heating element for an homemade oven.

Discussion in 'General Electronics Discussion' started by diegog, May 9, 2020.

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  1. diegog

    diegog

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    May 9, 2020
  2. Alec_t

    Alec_t

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    Jul 7, 2015
    Welcome to EP!
    Can you explain what you mean by 'pilot'?
    All you need to keep the element always on is a suitably rated switch.
     
  3. diegog

    diegog

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    May 9, 2020
    Sorry I might have used the wrong word. I mean that I would like to turn it on constantly. What is happening at the moment is that the circuit breaker goes off after 4 mins of usage. I guess it's absorbing too much power. Would I need a controller for using it?
     
  4. Alec_t

    Alec_t

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    757
    Jul 7, 2015
    If the element is not faulty then your circuit-breaker is doing its job in preventing your supply circuit from being over-loaded. I suggest you get a lower wattage element. Controllers which reduce the heating capacity of an element can fail, or be set incorrectly. Either situation could be hazardous.
     
  5. Hunter64

    Hunter64

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    Nov 20, 2018
    What is the rating of the circuit breaker?
     
  6. Alec_t

    Alec_t

    2,828
    757
    Jul 7, 2015
    .... and what is the rating of the element?
     
  7. bertus

    bertus Moderator

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    Nov 8, 2019
    Hello,

    This is the desciption on the given page:
    High Quality Compatible Fan Oven Element 1500W

    Have you noticed that the fan oven is not heating up as usual? Well, this could be due to a faulty fan oven element. This element is the circular element in the oven, and can fail if the internal element filament burns out - causing a short circuit.

    If this has happened to your element, or you have noticed visual signs of a split, bulge or blow hole on the element, then it sounds like it is time to get it replaced.

    eSpares has this replacement compatible fan oven element, which could soon be fitted in your oven to bring back the heat - and get you on your way to cooking those great tasting meals again in no time!

    Specification:

    • 2 Turn
    • Wattage: 1500 watts
    • Height: 172mm
    • Width: 147mm
    • Bracket: 70mm
    • Tags: 24mm
    • Manufacturers' name and numbers are used for reference purposes only. This part is in no way associated with the original manufacturers part
    It seems to be an 1500 Watt element.

    Bertus
     
  8. Alec_t

    Alec_t

    2,828
    757
    Jul 7, 2015
    Presumably a 240V rated element as the link is uk-based. So current would be ~6A. If the breaker is 5A rated that would explain it tripping.
     
  9. diegog

    diegog

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    May 9, 2020
    The spare part is brand new, just used once. How can I test if it is broken?
    Thanks

     
  10. diegog

    diegog

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    May 9, 2020
    What about a thermostat that can prevent the element to absorb too much and not kicking off the circuit breaker?

     
  11. Alec_t

    Alec_t

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    Jul 7, 2015
    Too slow to operate. The response time of a thermostat is much greater than that of a circuit-breaker.
    As previously asked, what is the circuit-breaker rating (Amps)?
    You need to power the element from a circuit which can handle 6A without stress, e.g. a 10A circuit.
     
  12. diegog

    diegog

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    May 9, 2020
    I took a picture
     

    Attached Files:

  13. duke37

    duke37

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    Jan 9, 2011
    The element is intended for use in a fan oven. If it is not cooled by air movement, then the element will overheat and nasty things can happen.

    Do you have a fan in your pizza oven?
     
  14. diegog

    diegog

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    May 9, 2020
    I'm afraid there's no fan in the pizza oven. Is there anything I can do to avoid overheating apart from using a cooling fan?
     
  15. duke37

    duke37

    5,362
    768
    Jan 9, 2011
    I have a 50 year old cooker with pancake rings which seem to bw happy running red hot.

    If you put another similar element in series, then the power will be 750W and this will be split into 375W per element.
    You could investigate what elements are used in commercial pizza ovens.
     
  16. Bluejets

    Bluejets

    4,062
    848
    Oct 5, 2014
    Perhaps just simply use a 2000W element from a standard convection oven which are designed to run red hot.
    Again though, there may be limits on the run time as they normally cut out when the oven gets to around 350F.
     
  17. Hunter64

    Hunter64

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    13
    Nov 20, 2018
    What is 350F in normal currency?
     
  18. Martaine2005

    Martaine2005

    2,777
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    May 12, 2015
    176.667c.

    F° to C°: Fahrenheit to CelsiusConversion Formula
    To convert temperatures in degrees Fahrenheit to Celsius, subtract 32 and multiply by . 5556 (or 5/9).

    Martin
     
  19. bertus

    bertus Moderator

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    Nov 8, 2019
    Hello,

    On wich group is the oven used?

    groups.png
    As the others say, the element is intended to be used with a fan.

    Bertus
     
  20. Alec_t

    Alec_t

    2,828
    757
    Jul 7, 2015
    You should NOT be using the element on a circuit protected by breaker 8 or 3. If it's on a circuit protected by any of the other breakers (all rated for 16A or 32A) and the breaker is tripping then the element is faulty and should not be used..
     
    bertus likes this.
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