how to stop flow of electricity within a period of time?
the concept of the circuit is, when electricity is applied to the circuit, it will stop the flow of electricity in 10 minutes. after 10 minutes the flow of electricity from the circuit to the load will be normal. for example my load is a refrigirator, when house electricity cuts off, as soon as the electricity is back, the refrigirator will not work within 10 minutes, after 10 minutes, it will be normal. any idea guys? any help would be very appreciated.
Discussions
Best Answer 5 years ago
Buy an off-the-shelf "on-delay timer" like this
http://www.ebay.co.uk/itm/White-AC-110V-Power-Delay-Timer-Time-Relay-1-99-Second-8-Pins-ASY-2D-/281114426800?_trksid=p3284.m263&_trkparms=algo%3DSI%26its%3DI%26itu%3DUCI%252BUA%252BFICS%26otn%3D21%26pmod%3D161010833302%26ps%3D54
You will need a relay to go with that, because its contacts won't take the starting current of the refrigerator.
Something like this.
http://www.ebay.co.uk/itm/JQX-40F-2Z-40A-AC-110V-Coil-PCB-Power-Relay-/350684868530?pt=LH_DefaultDomain_3&hash=item51a6726fb2
You can buy the gear on Ebay, or you could take the pictures to your local electrical contractor supply house.
Wiring should be very easy, but if you are not sure, just get a practicing electrician to make it up for you. I can give you a schematic.
Answer 5 years ago
thank you for your help steveastrouk can i have a copy of your schematic?
Answer 5 years ago
Sure, but it'll take me a little time to work it up. I realised after I posted that the timer I "chose" only works up to 99 seconds, and you want 600...I'll find one with a minute scale not seconds later.
Answer 5 years ago
thank you sir
Answer 5 years ago
OK,
Try this for the timer:
http://www.ebay.co.uk/itm/AC-220V-Power-ON-Delay-Timer-Time-Relay-1-999-Minute-/150592203369
Answer 5 years ago
thanks for the help man, i will try it later
Answer 5 years ago
Can I ask why you need this ?
Answer 5 years ago
thank you sir
5 years ago
That's called a start delay or switch on delay. You can buy ready made components for that. Or combine a NE555 monoflop with a relay.
Answer 5 years ago
thanks verence but i have to make a circuit on my own..do you have an example of schematic diagram of that circuit?