The Breakroom > The Water Cooler
Too Many Volts
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awemawson:
Then came the 'tap changing' - this transformer seems to date from the 1950's. The 'tap switch' was locked shut, but the lock got cut off with a big cutter. Then the chap trying to alter it convinced himself that it didn't 'feel right' - certainly there were no 'clunks' as it rotated - indeed it rotated apparently quite freely.

We had visions of something from the switch mechanism falling off inside the transformer, so having theoretically moved it two tap positions they decided to temporarily re-connect to measure the voltage (which had been 250 / 251 when they arrived)

Hooray - 240 volts phase to neutral - the switch must be ok  :ddb:
awemawson:
So then they could take off the temporary connections and re-crimp onto the stubs left where they cut the three phases.

To do this the various live cables were wrapped up in blanket red rubber  insulation, just in case something fell or went wrong

Then they moved their 'vehicle collection', back out into the yard to try and start trampling down the horrid mess they made - very soft clay soil that goose field  :bugeye:
awemawson:
In fairness we've been offered a load of top soil and grass seed and a gang to spread it so they are trying to make things better !

And the result. Well now there's a bit of load back on the line my UPS here in the barn where I am typing is reporting 235v - I've never known it as low as that all the time we've been here. Just as well, as  while this was going one I took delivery of another batch of GU10 LED bulbs from Wickes (special offer half price at the moment  :ddb:)
lordedmond:
That brings back some memories from my past enjoyed live live working up the poles but not so much underground cable work , that's the price you pay for being a SAP amongst other things


The job I disliked the most was phasing out 11KV with two probs ( high res stacks ) inside the truck enclosure no room to move

All the tap changers I have delt with have been clunky and stiff as Blazers no wonder they had doubts

Glad they dropped you a wee bit now the boss lady will tell you the electric oven is not up to snuff  :)

Stuart
John Rudd:
As an ex instrument type, dealing with anything greater than 24v dc gives me the willies...... :zap: :zap:

Rather them up the pole than me at 11kv.......
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