Does anyone know anything about oil filled (or otherwise?) transformers used to supply power for submersible oil pumps used in deep oil wells?
Apparantly these transformers have many terminals and have been called "porcupine" transformers.
There are quite a few outputs and/or taps that are used to adjust the supply voltage because of the voltage drop across the very long supply wires down to the pump in the well. I think the voltage drop is calculated based on the length and size of wire used between the pump and transformer. The voltage is then adjusted according to the drop and the pump's voltage requirements.
I would appreciate any references, design criteria (kVA, voltages, pictures, how they are used) or any other comments with regards to this type of transformer.
Thanks to all in advance.
Peter
Apparantly these transformers have many terminals and have been called "porcupine" transformers.
There are quite a few outputs and/or taps that are used to adjust the supply voltage because of the voltage drop across the very long supply wires down to the pump in the well. I think the voltage drop is calculated based on the length and size of wire used between the pump and transformer. The voltage is then adjusted according to the drop and the pump's voltage requirements.
I would appreciate any references, design criteria (kVA, voltages, pictures, how they are used) or any other comments with regards to this type of transformer.
Thanks to all in advance.
Peter
