overload

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  1. O

    motor, contactor or overload fault?

    guys, got a motor tripping an overload. Too much current is been pulled however how can I be sure its the motor and not the contactor or overload that is causing the problems. Have checked resistance across terminals and compared with a similar circuit and tbh they are the same but I need to be...
    • One_of_them
    • Thread
    • aus check contactor drive fault modules motor overload
    • Replies: 3
    • Forum: Australia
  2. UKMeterman

    Load ballance and overload alarm unit, usefull for small IE spanish supplies

    Hi, Ime italy havve just brought out a new bit of kit, that might be usefull to keep inside the spanish load limits http://www.imeitaly.com/docs/NT752.pdf it consists of a load monitor and contactor in the same unit, if the total connected load exceeds a certain limit it drops the non essential...
    • UKMeterman
    • Thread
    • alarm aus load not uk overload small supplies unit
    • Replies: 0
    • Forum: Australia
  3. S

    kitchen hood extractor (industrial)

    Called out today to a commercial kitchen hood. Fan runs through a speed control DOL starter with overload and is interlinked to the gas proving unit. Fan tripped out today and took a while to reset. The kitchen manager said that he managed to get it to start again but it will not run on speed...
    • sparkydude
    • Thread
    • canada extractor industrial kitchen overload roman times
    • Replies: 3
    • Forum: Canada
  4. L

    Motor Starters and overload protection

    Hi Guys I have had little contact with industrial motors and switchgear but would like to broaden my knowledge and would like some help.When choosing a motor starter what must be considered? obviously the loading and the voltage (230v or 400v), with or without isolator also overload protection...
    • leestaf
    • Thread
    • canada motor overload protection
    • Replies: 15
    • Forum: Canada
  5. 9

    overload setting for a D.O.L starter, 0.65Kw motor

    overload setting for a D.O.L starter, 0.65Kw motor, I have got 1.2A i am just wanting someone to clarifly this please
  6. I

    selecting the appropriate thermal overload relay for three phase asynchronous motor

    i have a mixer of breed floor run by a three phase asychnonous motor for which there is no nameplate .i measured the starting current(10A) and the nominal current (6A) please help me to choose the right thermal overload relay for this motor also the good brand name . sincerly yours...
    • iswiss
    • Thread
    • aus current motor overload phase relay thermal three three phase
    • Replies: 4
    • Forum: Australia
  7. S

    Motor overload

    I really should know this but...... I have to rewire a church organ. Im using 24v dc as control voltage to get around earthing a metal plate and remove coil hum. However, the blower is the problem It is 230v soft start 2 HP (about 1500 watts if memory serves). Now do I need this to have...
    • simonspark
    • Thread
    • aus motor overload
    • Replies: 8
    • Forum: Australia
  8. M

    anouther pir question

    Did a pir to day and found the shed was fed from a 16 mcb in the fuse-board in the house then wired in swa to a rcd in the shed then to a socket. Now this doesn't feel right but cant find a reason why not you can isolate the socket by using the the rcd locally or at the house the cables...
  9. W

    setting a dol starter thermal overload

    as in the title can anyone help with selecting and setting the limit on a thermal overload relay, the motor is rated at 2.2 KW single phase, is it a case of run the motor at full load, clamp measure the max A then set the overload just above, or set the overload to just below the max CC Capacity...
    • Welchyboy
    • Thread
    • aus dol overload setting starter thermal
    • Replies: 5
    • Forum: Australia
  10. S

    Motor Overload requirements

    Hi, I have been asked by the local church to find out about some overload protection for a motor which is powering the church organ. I am new to this and was hoping you could help. The motor is wired to a Modular Heating/Lighting Contactor (Sector IMO hc25-40 25A) which is connected to the...
  11. telectrix

    Thermal Overload Problem

    Hi, Guys. need help to locate replacement overload. it's a 120deg.C., 250v, 2 pole thermal overload fo a griddle ( commercial kitchen.). It's approx. 1" square with 2 spade lugs at each end. I'l try and upload a pic.
  12. shakerbess

    induction type overload relay

    hi could anybody help need to find out the following please little stuck question: show how an induction relay maybe used together with other components to protect against overloads and earth faults on the transition and distribution system any help would be great thankyou
    • shakerbess
    • Thread
    • canada induction overload protection relay relays roman times type
    • Replies: 7
    • Forum: Canada
  13. J

    schneider overload

    I have fitted a schneider overload with bracket so its free standing no starter. I fitted it straight out of the box so its on auto when I pressed the stop button on it my motor kept running, is this normal or have i bought a faulty overload.
    • jmtisme
    • Thread
    • canada overload schneider
    • Replies: 4
    • Forum: Canada
  14. telectrix

    Overload Help

    no, not my brain overloaded, but it's getting there. called out to a pub, regular customer. problem is his pub kitchen load. situation is:; Main DB supplies most of the pub circuits - individual MCBs. 4 63A MCBs each feed sub-DBs. Main Board is full, no spare ways. Problem is the main kitchen...
  15. J

    3ph motor overload

    I want to fit a stand alone 3ph overload to a 5.5kw motor its wired in delta (guess that doesn't matter) can anyone tell me what size of overload I should be fitting. I have been advised to fit a variable set at 13A mark. I think thats quite low any comments will be appreciated.
    • jmtisme
    • Thread
    • canada motor overload
    • Replies: 4
    • Forum: Canada
  16. spamwize2

    moeller overload not tripping

    we have a moeller z type overload through a contactor to a single phase motor, it is set to trip at 2.4a but doesnt! the motor is pulling 2.7a anyone any ideas why it isn't tripping
    • spamwize2
    • Thread
    • canada overload tripping
    • Replies: 6
    • Forum: Canada
  17. P

    job interview SKILL TEST??

    ive got a second interview coming up for a large food manufacturing company which includes a skill test, any maintenance electricians here that have done one and what did it involve? or maybe your company sets them for new prospective employees?
    • pmac10
    • Thread
    • canada circuit company electrical work interview job overload test things those
    • Replies: 10
    • Forum: Canada
  18. W

    Motor Overload

    What should the overload be set to for a three phase 0.5kW motor?
    • whazza22
    • Thread
    • canada motor overload
    • Replies: 11
    • Forum: Canada
  19. W

    Motor Overload

    At college I was ask to set the overload of a three-phase motor. I used P=V x I Do you divide the motors wattage by 3 (as its three-phase) then divide by 230 or do you divide by 400?
    • whazza22
    • Thread
    • canada motor overload
    • Replies: 22
    • Forum: Canada
  20. E

    How to 'size' contactors for star delta circuit ?

    Hi All , How do i size the main , star and delta contactors for a motor control circuit using a 50Kw motor ? Do i just rate all contactors at 50 kW ? Any help appreciated. Thanks :)
    • electek
    • Thread
    • canada circuit contactor contactors delta motor overload phase size star delta
    • Replies: 7
    • Forum: Canada

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