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large cotton reels in substation??

Hi guys a couple of weeks ago I was looking on Google maps to try to work out a future planned trip for when lockdown is done anyhow I went onto satellite view which is basically an areal view of wherever your looking at. Part of my search I saw an areal view of our local grid substation at chickerell on the foto  there was what looked like very large cotton reels in the sub I was curious what they could be I hink they are very large chokes for voltage balancing there are also some square objects right next to them which I assume are capacitors not sure what voltage they run at but looks like 230/400 Kv does this sound about right? Incidentally I sorted out my rout for my future trip
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  • In the videos and fotos I've seen it looks like large numbers of capacitors in mixed series parallel arrangement  as zoom says above. I've worked on large DC cap banks in the past the amount of energy stored is scary  I imagine that if the AC cap banks are switched off at the peak of the wave the engineers have to be very careful to make sure they are discharged
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  • In the videos and fotos I've seen it looks like large numbers of capacitors in mixed series parallel arrangement  as zoom says above. I've worked on large DC cap banks in the past the amount of energy stored is scary  I imagine that if the AC cap banks are switched off at the peak of the wave the engineers have to be very careful to make sure they are discharged
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