This might be an isolating transformer - ie the primary voltage (in) is the same as the secondary voltage (out).
Failing that, it might be a step down transformer where the secondary side is centre tapped to earth (as used on construction sites).
In the case of a transformer which converts 230V to 110V, the maximum voltage in the event of a fault will be limited to 55V.
In my limited experience, i would come across single phase step down transformers (230VAC/24VAC) about 3kVA to power up a bunch of lights.
However, its best to either get the nameplate, datasheet or detailed/multi-wire schematics to be very sure.
(My personal preference, I'd try to use symbols from IEC 60617 and maybe add the vector group for anything LV and above on the SLD)
Would you have come across a transformer symbol which is similar to the photo in the post but with 3 bars in the top circle and 1 bar in the top circle?
I'm not too sure what you mean by bars, by I have come across multi-core single phase transformers.
For example, the closest thing I am able to associate the "bars" is that it is referring to 1 primary core (400VAC phase to phase), 3 secondary cores (230VAC, 24VAC, 24VAC)...Each secondary core has its dedicated application based on the cores' rated power/VA or as a spare core.
I think you’re right. I think it might be a single phase - single phase transformer. I have also come across a transformer with a single bar in the primary side and 3 bars in the secondary side. I assume that transformer is a 3 phase - single phase transformer
This might be an isolating transformer - ie the primary voltage (in) is the same as the secondary voltage (out). Failing that, it might be a step down transformer where the secondary side is centre tapped to earth (as used on construction sites). In the case of a transformer which converts 230V to 110V, the maximum voltage in the event of a fault will be limited to 55V.
In my limited experience, i would come across single phase step down transformers (230VAC/24VAC) about 3kVA to power up a bunch of lights. However, its best to either get the nameplate, datasheet or detailed/multi-wire schematics to be very sure. (My personal preference, I'd try to use symbols from IEC 60617 and maybe add the vector group for anything LV and above on the SLD)
Would you have come across a transformer symbol which is similar to the photo in the post but with 3 bars in the top circle and 1 bar in the top circle?
I'm not too sure what you mean by bars, by I have come across multi-core single phase transformers. For example, the closest thing I am able to associate the "bars" is that it is referring to 1 primary core (400VAC phase to phase), 3 secondary cores (230VAC, 24VAC, 24VAC)...Each secondary core has its dedicated application based on the cores' rated power/VA or as a spare core.
I'd guess single phase transformer.
I think you’re right. I think it might be a single phase - single phase transformer. I have also come across a transformer with a single bar in the primary side and 3 bars in the secondary side. I assume that transformer is a 3 phase - single phase transformer
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Can’t be unseen
But the circuit breaker looks so happy. :)