power- relay transfer switch wiring
#1
08-13-14, 06:15 AM
power- relay transfer switch wiring
HI
did any one know how to wire this power relay which is used to
automatically switch power between generaator and the main electric line
here is a photo of the power relay
Jqx-62f Power Automatic Transfer Switch Photo, Detailed about Jqx-62f Power Automatic Transfer Switch Picture on Alibaba.com.
the current is 120 amp
the voltage is 220
coil voltage is 220
did any one know how to wire this power relay which is used to
automatically switch power between generaator and the main electric line
here is a photo of the power relay
Jqx-62f Power Automatic Transfer Switch Photo, Detailed about Jqx-62f Power Automatic Transfer Switch Picture on Alibaba.com.
the current is 120 amp
the voltage is 220
coil voltage is 220
#2
08-13-14, 03:43 PM
Group Moderator
I think the title for this is not correct. It appears to only be a standard relay with a 240 volt coil.
This pretty much confirms it: Power relay JQX-62F 2Z 80A_China Asiaon Relays
This pretty much confirms it: Power relay JQX-62F 2Z 80A_China Asiaon Relays
#5
08-13-14, 04:57 PM
Group Moderator
That relay "could" be the heart of an automatic transfer switch but it won't transfer by itself.
You either need to keep 240vac on the coil so that when you lose normal power the relay will operate/open. You'd need to see if the relay coil was rated for continuous duty.
OR
You can connect the coil to the same location as the generator gets connected so that when you supply generated power the relay will activate.
Based on this..... you'd be better off with a manual transfer switch.
You either need to keep 240vac on the coil so that when you lose normal power the relay will operate/open. You'd need to see if the relay coil was rated for continuous duty.
OR
You can connect the coil to the same location as the generator gets connected so that when you supply generated power the relay will activate.
Based on this..... you'd be better off with a manual transfer switch.
#6
08-13-14, 05:07 PM
the relay was rated to work as below>after
connecting the generator to a lead and the main power supply to another lead
when the coil energized the relay will fed the house from main power supply
when it denergized it will fed the house from the generator
connecting the generator to a lead and the main power supply to another lead
when the coil energized the relay will fed the house from main power supply
when it denergized it will fed the house from the generator
#7
08-13-14, 06:24 PM
Group Moderator
The diagram below illustrates how to wire that relay. I didn't have a clear picture of it so I used the closest one. Be sure you understand what I've drawn before using this relay. Personally, I doubt the coil will stand up to continuous duty without overheating. The blue wires are the coil wires. I've put the fuse in just in case the coil shorts.
With this relay.... when you lose power the relay will open. If you have a momentary glitch in power.... the relay will chatter. I'm advising you of these things as this is not an ideal way to transfer power.
I've drawn the diagram - the responsibility in the use of the circuit is yours.
With this relay.... when you lose power the relay will open. If you have a momentary glitch in power.... the relay will chatter. I'm advising you of these things as this is not an ideal way to transfer power.
I've drawn the diagram - the responsibility in the use of the circuit is yours.
Last edited by PJmax; 08-13-14 at 06:39 PM. Reason: added diagram
#8
08-13-14, 07:06 PM
Group Moderator
With PJ's diagram the relay would need to be a normally closed relay, so when the relay loses power it closes the contacts. However the power feeding the relay can not be on the same circuit/system as whatever is run by the generator or the relay will open.
As mentioned, this is really for informational purposes only. It would be much easier/better to just buy the proper transfer equipment.
As mentioned, this is really for informational purposes only. It would be much easier/better to just buy the proper transfer equipment.
#11
08-24-14, 09:36 AM
Group Moderator
Feeding the coil from Line power will keep the coil energized at all times there is normal power. You need to use the contacts that are closed when the relay is powered to carry power thru.
If you powered the coil from the generator you would have to reverse the line and genny connections on the relay.
The wiring to the common part of the switch always goes to the house.
If you powered the coil from the generator you would have to reverse the line and genny connections on the relay.
The wiring to the common part of the switch always goes to the house.
#12
08-25-14, 03:52 AM
i didn't meant about how i fed the coil
but are there any advantages or disadvantages
if i fed the coil from generator or normal power
but are there any advantages or disadvantages
if i fed the coil from generator or normal power
#13
08-25-14, 08:25 AM
Group Moderator
Two disadvantages when feeding the coil from the AC line is that the coil is always energized and on loss of AC power that relay will chatter.
#18
08-25-14, 07:33 PM
Group Moderator
I believe I mentioned a manual transfer switch back in my first post. Since you have to start the generator anyway.... a manual switch makes more sense.
#19
08-25-14, 10:44 PM
about generator
in these days i will use my house generator
but may be after a month
i will use the neighborhood generator which is switch on after power ,line off
some times im out of house so a power relay will be necessary
so in this case the coil should be fed from generator or power line
sorry for disturbing u
your help are appreciated
in these days i will use my house generator
but may be after a month
i will use the neighborhood generator which is switch on after power ,line off
some times im out of house so a power relay will be necessary
so in this case the coil should be fed from generator or power line
sorry for disturbing u
your help are appreciated
#20
08-26-14, 09:09 AM
Group Moderator
Feed the coil from the generator line. This way it will only change the relay when power is being locally generated.
#22
08-26-14, 01:16 PM
Group Moderator
