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Is that a center tap tranformer just labelled differently?
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Is that a center tap tranformer just labelled differently?
Removing neon transformer center tap?Center-tap Primary Coil TransformerDual output with Center Tap transformerSimulate center-tap transformer using two transformers?Tube amp power transformer center tapCenter tap transformerUsing a twin secondary in place of centre tapped transformerIs VCT(volts center tapped) voltage between two outer taps or betwen outer tap and center tap?Power rating of secondary windings in center tapped applicationWhat is the tap on a center tap transformer
$begingroup$
my transformer has a secondary winding of 0 - 12v - 24v
Is it just labelled differently and is it really a center tap where 12v would be the center, 0 would be -12v and 24 would be 12v?
Thanks!
transformer identification
asked 6 hours ago
Mike Gleason jr CouturierMike Gleason jr Couturier
34518
$endgroup$
|
show 1 more comment
$begingroup$
my transformer has a secondary winding of 0 - 12v - 24v
Is it just labelled differently and is it really a center tap where 12v would be the center, 0 would be -12v and 24 would be 12v?
Thanks!
transformer identification
asked 6 hours ago
Mike Gleason jr CouturierMike Gleason jr Couturier
34518
$endgroup$
$begingroup$
It's not an autotransformer is it (basically just a big inductor with multiple output taps)? You can check by measuring resistance to see if the 0V and 0V are electrically connected to each other
$endgroup$
– Toor
6 hours ago
$begingroup$
@Toor thanks will check, in the mean time their website in french clearly makes a distinction between a regular transformer and autotransformer and the label says "transformer" so I would guess this is not an autotransformer. Getting the multimeter..
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
$begingroup$
@Toor Can confirm: 0 and 0 are not connected to each other.. 0 and 12 and 24 are on the secondary, obviously 0 and 220 are on the primary side
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
3
$begingroup$
Yeah, so a normal center-tap transformer just labelled specifically for its intended use then.
$endgroup$
– Toor
5 hours ago
2
$begingroup$
You can. Just note that one half-winding will be loaded a more than the other half and will affect both voltage outputs.
$endgroup$
– Toor
5 hours ago
|
show 1 more comment
$begingroup$
my transformer has a secondary winding of 0 - 12v - 24v
Is it just labelled differently and is it really a center tap where 12v would be the center, 0 would be -12v and 24 would be 12v?
Thanks!
transformer identification
asked 6 hours ago
Mike Gleason jr CouturierMike Gleason jr Couturier
34518
$endgroup$
my transformer has a secondary winding of 0 - 12v - 24v
Is it just labelled differently and is it really a center tap where 12v would be the center, 0 would be -12v and 24 would be 12v?
Thanks!
transformer identification
transformer identification
asked 6 hours ago
Mike Gleason jr CouturierMike Gleason jr Couturier
34518
asked 6 hours ago
Mike Gleason jr CouturierMike Gleason jr Couturier
34518
asked 6 hours ago
Mike Gleason jr CouturierMike Gleason jr Couturier
34518
asked 6 hours ago
Mike Gleason jr CouturierMike Gleason jr Couturier
34518
asked 6 hours ago
Mike Gleason jr CouturierMike Gleason jr Couturier
34518
34518
$begingroup$
It's not an autotransformer is it (basically just a big inductor with multiple output taps)? You can check by measuring resistance to see if the 0V and 0V are electrically connected to each other
$endgroup$
– Toor
6 hours ago
$begingroup$
@Toor thanks will check, in the mean time their website in french clearly makes a distinction between a regular transformer and autotransformer and the label says "transformer" so I would guess this is not an autotransformer. Getting the multimeter..
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
$begingroup$
@Toor Can confirm: 0 and 0 are not connected to each other.. 0 and 12 and 24 are on the secondary, obviously 0 and 220 are on the primary side
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
3
$begingroup$
Yeah, so a normal center-tap transformer just labelled specifically for its intended use then.
$endgroup$
– Toor
5 hours ago
2
$begingroup$
You can. Just note that one half-winding will be loaded a more than the other half and will affect both voltage outputs.
$endgroup$
– Toor
5 hours ago
|
show 1 more comment
$begingroup$
It's not an autotransformer is it (basically just a big inductor with multiple output taps)? You can check by measuring resistance to see if the 0V and 0V are electrically connected to each other
$endgroup$
– Toor
6 hours ago
$begingroup$
@Toor thanks will check, in the mean time their website in french clearly makes a distinction between a regular transformer and autotransformer and the label says "transformer" so I would guess this is not an autotransformer. Getting the multimeter..
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
$begingroup$
@Toor Can confirm: 0 and 0 are not connected to each other.. 0 and 12 and 24 are on the secondary, obviously 0 and 220 are on the primary side
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
3
$begingroup$
Yeah, so a normal center-tap transformer just labelled specifically for its intended use then.
$endgroup$
– Toor
5 hours ago
2
$begingroup$
You can. Just note that one half-winding will be loaded a more than the other half and will affect both voltage outputs.
$endgroup$
– Toor
5 hours ago
$begingroup$
It's not an autotransformer is it (basically just a big inductor with multiple output taps)? You can check by measuring resistance to see if the 0V and 0V are electrically connected to each other
$endgroup$
– Toor
6 hours ago
$begingroup$
It's not an autotransformer is it (basically just a big inductor with multiple output taps)? You can check by measuring resistance to see if the 0V and 0V are electrically connected to each other
$endgroup$
– Toor
6 hours ago
$begingroup$
@Toor thanks will check, in the mean time their website in french clearly makes a distinction between a regular transformer and autotransformer and the label says "transformer" so I would guess this is not an autotransformer. Getting the multimeter..
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
$begingroup$
@Toor thanks will check, in the mean time their website in french clearly makes a distinction between a regular transformer and autotransformer and the label says "transformer" so I would guess this is not an autotransformer. Getting the multimeter..
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
$begingroup$
@Toor Can confirm: 0 and 0 are not connected to each other.. 0 and 12 and 24 are on the secondary, obviously 0 and 220 are on the primary side
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
$begingroup$
@Toor Can confirm: 0 and 0 are not connected to each other.. 0 and 12 and 24 are on the secondary, obviously 0 and 220 are on the primary side
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
3
3
$begingroup$
Yeah, so a normal center-tap transformer just labelled specifically for its intended use then.
$endgroup$
– Toor
5 hours ago
$begingroup$
Yeah, so a normal center-tap transformer just labelled specifically for its intended use then.
$endgroup$
– Toor
5 hours ago
2
2
$begingroup$
You can. Just note that one half-winding will be loaded a more than the other half and will affect both voltage outputs.
$endgroup$
– Toor
5 hours ago
$begingroup$
You can. Just note that one half-winding will be loaded a more than the other half and will affect both voltage outputs.
$endgroup$
– Toor
5 hours ago
|
show 1 more comment
3 Answers
3
active
oldest
votes
$begingroup$
Not necessarily. If the transformer is rated to produce full output from either the 12V tap or the 24V tap, it could be that the winding from the 12 to 24V terminals is of a finer gage, since the current that could be drawn from the 24V tap would be half that you could draw at 12V. This you can determine by comparing the resistance of the 0-12 and 12-24 windings.
Would that matter for using it as a center-tapped +/- 12V transformer? Not much, the terminal voltage at the high side would be fractionally lower under load, but the overall heating compared to drawing the full power at a single tap would actually be less.
answered 6 hours ago
Phil GPhil G
2,5571412
$endgroup$
$begingroup$
I get 1 ohm resistence between 0 and 12, 1 ohm between 12 and 24 and 2 ohms between 0 and 24... So I guess this really is a center tap?
$endgroup$
– Mike Gleason jr Couturier
5 hours ago
1
$begingroup$
I'd think so. While you can get more out of a given core (since you have to get all the windings through a fixed window size) by fine-tuning the wire sizes, there's the additional cost of winding different wire sizes, so keeping the windings the same is likely cheaper. More effective still for a 12V OR 24V secondary is to have two separate winding that can then be connected series or parallel to maximize winding utilization.
$endgroup$
– Phil G
5 hours ago
add a comment |
$begingroup$
I would guess that yes, it is just a regular center tap transformer. Assuming that's the case:
The outputs will be AC, so -12V doesn't really have any meaning. The 12V here will be 12V AC, and the 24 will be 24V AC.
If you make the center tap 0, then "LABEL 0" will be 12V, and "LABEL 24" will also be 12V (but they will be out of phase with each other).
Based on the labeling, I think it's fairly certain that this is a regular transformer, but I would do some continuity tests just to make sure.
answered 6 hours ago
DrewDrew
1,8561513
$endgroup$
$begingroup$
Thanks for your answer, As I said above in a comment: 0 and 0 are not connected to each other.. 0 and 12 and 24 are connected on the secondary, 0 and 220 are connected on the primary side. (connected I mean near 0 resistance)
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
add a comment |
$begingroup$
0V is arbitrary as it is floating secondary centre-tapped coil.
so you can relabel with 3 choices;
0 : 12Vac : 24Vac
12Vac : 0V : 12Vac +180 deg
24Vac : 12Vac : 0V
answered 5 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
67.4k22397
$endgroup$
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
Not necessarily. If the transformer is rated to produce full output from either the 12V tap or the 24V tap, it could be that the winding from the 12 to 24V terminals is of a finer gage, since the current that could be drawn from the 24V tap would be half that you could draw at 12V. This you can determine by comparing the resistance of the 0-12 and 12-24 windings.
Would that matter for using it as a center-tapped +/- 12V transformer? Not much, the terminal voltage at the high side would be fractionally lower under load, but the overall heating compared to drawing the full power at a single tap would actually be less.
answered 6 hours ago
Phil GPhil G
2,5571412
$endgroup$
$begingroup$
I get 1 ohm resistence between 0 and 12, 1 ohm between 12 and 24 and 2 ohms between 0 and 24... So I guess this really is a center tap?
$endgroup$
– Mike Gleason jr Couturier
5 hours ago
1
$begingroup$
I'd think so. While you can get more out of a given core (since you have to get all the windings through a fixed window size) by fine-tuning the wire sizes, there's the additional cost of winding different wire sizes, so keeping the windings the same is likely cheaper. More effective still for a 12V OR 24V secondary is to have two separate winding that can then be connected series or parallel to maximize winding utilization.
$endgroup$
– Phil G
5 hours ago
add a comment |
$begingroup$
Not necessarily. If the transformer is rated to produce full output from either the 12V tap or the 24V tap, it could be that the winding from the 12 to 24V terminals is of a finer gage, since the current that could be drawn from the 24V tap would be half that you could draw at 12V. This you can determine by comparing the resistance of the 0-12 and 12-24 windings.
Would that matter for using it as a center-tapped +/- 12V transformer? Not much, the terminal voltage at the high side would be fractionally lower under load, but the overall heating compared to drawing the full power at a single tap would actually be less.
answered 6 hours ago
Phil GPhil G
2,5571412
$endgroup$
$begingroup$
I get 1 ohm resistence between 0 and 12, 1 ohm between 12 and 24 and 2 ohms between 0 and 24... So I guess this really is a center tap?
$endgroup$
– Mike Gleason jr Couturier
5 hours ago
1
$begingroup$
I'd think so. While you can get more out of a given core (since you have to get all the windings through a fixed window size) by fine-tuning the wire sizes, there's the additional cost of winding different wire sizes, so keeping the windings the same is likely cheaper. More effective still for a 12V OR 24V secondary is to have two separate winding that can then be connected series or parallel to maximize winding utilization.
$endgroup$
– Phil G
5 hours ago
add a comment |
$begingroup$
Not necessarily. If the transformer is rated to produce full output from either the 12V tap or the 24V tap, it could be that the winding from the 12 to 24V terminals is of a finer gage, since the current that could be drawn from the 24V tap would be half that you could draw at 12V. This you can determine by comparing the resistance of the 0-12 and 12-24 windings.
Would that matter for using it as a center-tapped +/- 12V transformer? Not much, the terminal voltage at the high side would be fractionally lower under load, but the overall heating compared to drawing the full power at a single tap would actually be less.
answered 6 hours ago
Phil GPhil G
2,5571412
$endgroup$
Not necessarily. If the transformer is rated to produce full output from either the 12V tap or the 24V tap, it could be that the winding from the 12 to 24V terminals is of a finer gage, since the current that could be drawn from the 24V tap would be half that you could draw at 12V. This you can determine by comparing the resistance of the 0-12 and 12-24 windings.
Would that matter for using it as a center-tapped +/- 12V transformer? Not much, the terminal voltage at the high side would be fractionally lower under load, but the overall heating compared to drawing the full power at a single tap would actually be less.
answered 6 hours ago
Phil GPhil G
2,5571412
answered 6 hours ago
Phil GPhil G
2,5571412
answered 6 hours ago
Phil GPhil G
2,5571412
answered 6 hours ago
Phil GPhil G
2,5571412
2,5571412
$begingroup$
I get 1 ohm resistence between 0 and 12, 1 ohm between 12 and 24 and 2 ohms between 0 and 24... So I guess this really is a center tap?
$endgroup$
– Mike Gleason jr Couturier
5 hours ago
1
$begingroup$
I'd think so. While you can get more out of a given core (since you have to get all the windings through a fixed window size) by fine-tuning the wire sizes, there's the additional cost of winding different wire sizes, so keeping the windings the same is likely cheaper. More effective still for a 12V OR 24V secondary is to have two separate winding that can then be connected series or parallel to maximize winding utilization.
$endgroup$
– Phil G
5 hours ago
add a comment |
$begingroup$
I get 1 ohm resistence between 0 and 12, 1 ohm between 12 and 24 and 2 ohms between 0 and 24... So I guess this really is a center tap?
$endgroup$
– Mike Gleason jr Couturier
5 hours ago
1
$begingroup$
I'd think so. While you can get more out of a given core (since you have to get all the windings through a fixed window size) by fine-tuning the wire sizes, there's the additional cost of winding different wire sizes, so keeping the windings the same is likely cheaper. More effective still for a 12V OR 24V secondary is to have two separate winding that can then be connected series or parallel to maximize winding utilization.
$endgroup$
– Phil G
5 hours ago
$begingroup$
I get 1 ohm resistence between 0 and 12, 1 ohm between 12 and 24 and 2 ohms between 0 and 24... So I guess this really is a center tap?
$endgroup$
– Mike Gleason jr Couturier
5 hours ago
$begingroup$
I get 1 ohm resistence between 0 and 12, 1 ohm between 12 and 24 and 2 ohms between 0 and 24... So I guess this really is a center tap?
$endgroup$
– Mike Gleason jr Couturier
5 hours ago
1
1
$begingroup$
I'd think so. While you can get more out of a given core (since you have to get all the windings through a fixed window size) by fine-tuning the wire sizes, there's the additional cost of winding different wire sizes, so keeping the windings the same is likely cheaper. More effective still for a 12V OR 24V secondary is to have two separate winding that can then be connected series or parallel to maximize winding utilization.
$endgroup$
– Phil G
5 hours ago
$begingroup$
I'd think so. While you can get more out of a given core (since you have to get all the windings through a fixed window size) by fine-tuning the wire sizes, there's the additional cost of winding different wire sizes, so keeping the windings the same is likely cheaper. More effective still for a 12V OR 24V secondary is to have two separate winding that can then be connected series or parallel to maximize winding utilization.
$endgroup$
– Phil G
5 hours ago
add a comment |
$begingroup$
I would guess that yes, it is just a regular center tap transformer. Assuming that's the case:
The outputs will be AC, so -12V doesn't really have any meaning. The 12V here will be 12V AC, and the 24 will be 24V AC.
If you make the center tap 0, then "LABEL 0" will be 12V, and "LABEL 24" will also be 12V (but they will be out of phase with each other).
Based on the labeling, I think it's fairly certain that this is a regular transformer, but I would do some continuity tests just to make sure.
answered 6 hours ago
DrewDrew
1,8561513
$endgroup$
$begingroup$
Thanks for your answer, As I said above in a comment: 0 and 0 are not connected to each other.. 0 and 12 and 24 are connected on the secondary, 0 and 220 are connected on the primary side. (connected I mean near 0 resistance)
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
add a comment |
$begingroup$
I would guess that yes, it is just a regular center tap transformer. Assuming that's the case:
The outputs will be AC, so -12V doesn't really have any meaning. The 12V here will be 12V AC, and the 24 will be 24V AC.
If you make the center tap 0, then "LABEL 0" will be 12V, and "LABEL 24" will also be 12V (but they will be out of phase with each other).
Based on the labeling, I think it's fairly certain that this is a regular transformer, but I would do some continuity tests just to make sure.
answered 6 hours ago
DrewDrew
1,8561513
$endgroup$
$begingroup$
Thanks for your answer, As I said above in a comment: 0 and 0 are not connected to each other.. 0 and 12 and 24 are connected on the secondary, 0 and 220 are connected on the primary side. (connected I mean near 0 resistance)
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
add a comment |
$begingroup$
I would guess that yes, it is just a regular center tap transformer. Assuming that's the case:
The outputs will be AC, so -12V doesn't really have any meaning. The 12V here will be 12V AC, and the 24 will be 24V AC.
If you make the center tap 0, then "LABEL 0" will be 12V, and "LABEL 24" will also be 12V (but they will be out of phase with each other).
Based on the labeling, I think it's fairly certain that this is a regular transformer, but I would do some continuity tests just to make sure.
answered 6 hours ago
DrewDrew
1,8561513
$endgroup$
I would guess that yes, it is just a regular center tap transformer. Assuming that's the case:
The outputs will be AC, so -12V doesn't really have any meaning. The 12V here will be 12V AC, and the 24 will be 24V AC.
If you make the center tap 0, then "LABEL 0" will be 12V, and "LABEL 24" will also be 12V (but they will be out of phase with each other).
Based on the labeling, I think it's fairly certain that this is a regular transformer, but I would do some continuity tests just to make sure.
answered 6 hours ago
DrewDrew
1,8561513
answered 6 hours ago
DrewDrew
1,8561513
answered 6 hours ago
DrewDrew
1,8561513
answered 6 hours ago
DrewDrew
1,8561513
1,8561513
$begingroup$
Thanks for your answer, As I said above in a comment: 0 and 0 are not connected to each other.. 0 and 12 and 24 are connected on the secondary, 0 and 220 are connected on the primary side. (connected I mean near 0 resistance)
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
add a comment |
$begingroup$
Thanks for your answer, As I said above in a comment: 0 and 0 are not connected to each other.. 0 and 12 and 24 are connected on the secondary, 0 and 220 are connected on the primary side. (connected I mean near 0 resistance)
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
$begingroup$
Thanks for your answer, As I said above in a comment: 0 and 0 are not connected to each other.. 0 and 12 and 24 are connected on the secondary, 0 and 220 are connected on the primary side. (connected I mean near 0 resistance)
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
$begingroup$
Thanks for your answer, As I said above in a comment: 0 and 0 are not connected to each other.. 0 and 12 and 24 are connected on the secondary, 0 and 220 are connected on the primary side. (connected I mean near 0 resistance)
$endgroup$
– Mike Gleason jr Couturier
6 hours ago
add a comment |
$begingroup$
0V is arbitrary as it is floating secondary centre-tapped coil.
so you can relabel with 3 choices;
0 : 12Vac : 24Vac
12Vac : 0V : 12Vac +180 deg
24Vac : 12Vac : 0V
answered 5 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
67.4k22397
$endgroup$
add a comment |
$begingroup$
0V is arbitrary as it is floating secondary centre-tapped coil.
so you can relabel with 3 choices;
0 : 12Vac : 24Vac
12Vac : 0V : 12Vac +180 deg
24Vac : 12Vac : 0V
answered 5 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
67.4k22397
$endgroup$
add a comment |
$begingroup$
0V is arbitrary as it is floating secondary centre-tapped coil.
so you can relabel with 3 choices;
0 : 12Vac : 24Vac
12Vac : 0V : 12Vac +180 deg
24Vac : 12Vac : 0V
answered 5 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
67.4k22397
$endgroup$
0V is arbitrary as it is floating secondary centre-tapped coil.
so you can relabel with 3 choices;
0 : 12Vac : 24Vac
12Vac : 0V : 12Vac +180 deg
24Vac : 12Vac : 0V
answered 5 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
67.4k22397
answered 5 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
67.4k22397
answered 5 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
67.4k22397
answered 5 hours ago
Sunnyskyguy EE75Sunnyskyguy EE75
67.4k22397
67.4k22397
add a comment |
add a comment |
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It's not an autotransformer is it (basically just a big inductor with multiple output taps)? You can check by measuring resistance to see if the 0V and 0V are electrically connected to each other
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– Toor
6 hours ago
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@Toor thanks will check, in the mean time their website in french clearly makes a distinction between a regular transformer and autotransformer and the label says "transformer" so I would guess this is not an autotransformer. Getting the multimeter..
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– Mike Gleason jr Couturier
6 hours ago
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@Toor Can confirm: 0 and 0 are not connected to each other.. 0 and 12 and 24 are on the secondary, obviously 0 and 220 are on the primary side
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– Mike Gleason jr Couturier
6 hours ago
3
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Yeah, so a normal center-tap transformer just labelled specifically for its intended use then.
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– Toor
5 hours ago
2
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You can. Just note that one half-winding will be loaded a more than the other half and will affect both voltage outputs.
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– Toor
5 hours ago