Wednesday, January 16, 2013
High voltage transformer
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| High voltage transformer 22000 Volts |
This particular three-phase AC power transformer of the photograph is 800 KVA, 1155 A reference to the output stage. The usual connectivity is the triangle at the entrance of the high voltage and star at the output (400 Volts).
Within the slices, that look like radiators, oil is there for both insulation and cooling the elements of the transformer.
The black wires that go down is the additional grounding that goes on during work on the transformer or the surrounding area.
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| Body temperature of the transformer |
The left indicator is the actual temperature.
The red arrow (right) shows the temperature above which thetransformer for safety reasons, stops the operation of "throwing" the switch that controls the supply voltage. If thetemperature exceeds a reference to the black arrow (here is the middle) sounds a warning siren.
The adapter also comes off for low oil level or multiple air bubbles in the oil.
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