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Power line quiz

Roger B over 4 years ago

Who can guess the purpose of the 2 wire OHL on the far left?

0 Rob Eagle over 4 years ago

Pilot wires?
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0 Zoomup over 4 years ago

Eagle perches.
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0 Zoomup over 4 years ago

Ski lift.
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0 mapj1 over 4 years ago

Assuming a sensible size pole those insulators suggest 6 or 11kV. Could be a 2 wire HV feed, or DC I suppose.

Mike.
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0 Former Community Member over 4 years ago

Grounding purposes?
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0 AncientMariner over 4 years ago

I'm seeing three wires, but only two insulators - nothing on the top/apex.

No reason why 3-phase has to have 3 wires each insulated from earth.

Clive
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0 Roger B over 4 years ago

The answer is in these 4 wire pylons.

For historic reasons germanic land railways use 15 kV single phase at 16 2/3 Hz and have their own power stations and grid. The first picture was a single phase, probably 25kV line going to a mast mounted transformer somewhere.

The picture above is part of the SBB 132kV grid.
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