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Enco 110 2079 bad transformer need replacement
- Thread starter hschoeller
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Thank you. I didn't know what it was saying.
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I haven't been able to find a manual with that info.
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See attached manual, it seems to cover several Enco models of the same design but different dimensions.
The transformer you have says 110V, so when running at 120VAC the voltages would be even higher. It may also be that the 29VAC is unloaded voltage, and it is drawn down as the current increases. If you look at control transformers with a secondary voltage of "24VAC", they will measure around 27-28VAC unloaded. Also the 6VAC tap on the schematic seems to be for the bulbs (HL1 and HL2), so you might be able to switch those out to 24V lamps and run everything off of 24VAC. This assumes all your contactors/relays run off of 24VAC. There are quite a few control transformers that could be used if that is the case. Example below, I would use a 50 (or 75VA but check the dimensions) size transformer with 120/240VAC primaries, switch the bulbs out to 24V and connect the 6 and 24VAC together on the new transformer and 0 would go to 0 on the new transformer. This assumes that the 6V tap was just used for the bulbs and nothing else. You can remove the bulbs and check them, also check the contactor coil voltages if possible.
www.powervolt.com
www.powervolt.com
The transformer you have says 110V, so when running at 120VAC the voltages would be even higher. It may also be that the 29VAC is unloaded voltage, and it is drawn down as the current increases. If you look at control transformers with a secondary voltage of "24VAC", they will measure around 27-28VAC unloaded. Also the 6VAC tap on the schematic seems to be for the bulbs (HL1 and HL2), so you might be able to switch those out to 24V lamps and run everything off of 24VAC. This assumes all your contactors/relays run off of 24VAC. There are quite a few control transformers that could be used if that is the case. Example below, I would use a 50 (or 75VA but check the dimensions) size transformer with 120/240VAC primaries, switch the bulbs out to 24V and connect the 6 and 24VAC together on the new transformer and 0 would go to 0 on the new transformer. This assumes that the 6V tap was just used for the bulbs and nothing else. You can remove the bulbs and check them, also check the contactor coil voltages if possible.
PowerVolt 120/240VAC- 28VAC Industrial Control Transformer
120VAC or 240VAC step down control transformer to secondary voltage of 28VAC or customizable upon your request. Power Rating 25VA to 1500VA. Voltage regulation exceeds NEMA standards.
PowerVolt Inc.
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231836 New-No Box; Acme TB181141 Control Transformer 50vA; 12/24 VAC; 1 Phase | eBay
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Mark has a good point about eliminating the 6 volt circuit and running everything off of 24 volts- 24 volt transformers of that size and power rating are much more plentiful than ones with both 24 volt and 6 volt taps.
Also, the primary doesn't need to be dual voltage (110/220) since you can always make use of a 110 volt only unit with minimal fuss
-M
Also, the primary doesn't need to be dual voltage (110/220) since you can always make use of a 110 volt only unit with minimal fuss
-M
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some scuffs, no cracks or dings.
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Another option is to use two transformers if you have the mounting space. Both 6.3V and 24V transformers are common. Check out Digi-Key for next day delivery.
For example
F-14X 120V in 6.3V out $13, (if you have the neutral for 120V in.) The F-13X ($11) is 115/230V in, however only 600mA out, not sure how much current your lights actually require?
This one is 115/230 Vin, 28V out with some margin power wise (100VA)
To deliver 2A (the fuse rating), implies 2*29= 58VA, a 50VA transformer would be overloaded if your circuit actually requires 2A, most likely it's less.
For example
F-14X 120V in 6.3V out $13, (if you have the neutral for 120V in.) The F-13X ($11) is 115/230V in, however only 600mA out, not sure how much current your lights actually require?
This one is 115/230 Vin, 28V out with some margin power wise (100VA)
To deliver 2A (the fuse rating), implies 2*29= 58VA, a 50VA transformer would be overloaded if your circuit actually requires 2A, most likely it's less.
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