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Author Topic: Half built Hugh Piggot turbine.  (Read 55376 times)
offthegridandy
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« Reply #360 on: November 05, 2018, 05:59:07 PM »

Got the alternator frame, yaw and tail bearings all finished today having added on the upper and lower tail stops and a "cap" piece which ensures that the tail boom can't lift off in squally winds. Apparently this has been known to happen, I think Clockman had the experience once and modified his turbine.

Finished up getting 1st coat of red oxide paint on.



Low end stop.


High end stop.


H. E stop keeps tail parallel with blades when fully furled.


Low end stop.

No pictures of paint drying.

Andy
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8 KVA Lister TS2 Startamatic Genny
24 Volt 1000amp battery bank
Outback VFX3024
4.6 Kw PV array permanently ground mounted
Outback Flexmax 80
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0.75 Kw wind turbine H Piggot design 2.4 Mtr Dia
12 Mtr lattice Tower.
u/floor heating from oil boiler cross linked to 12 Kw WBS
offthegridandy
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« Reply #361 on: November 10, 2018, 08:45:44 PM »

So I have pretty well finished the actual turbine build now having spent time the last few days fettling things.   I  have drilled a couple of weep holes in the lower end of the tailboom so any rain ingress has somewhere to get out again rather than adding to the weight of the tail.

I had previously fitted a 28mm tank boss to the top of the yaw tube for cable access.  I came a cross a nice cable clamp which, with a bit of filing fits snuggly in the tank boss so a nice solution to How to secure the cables at the top of the tower?

I'm using a 16 amp round pin plug and socket connector for the cable junction on the alternator frame.  I'll add a safety clip to ensure the 2 can't separate in a gale.

I've got a couple of coats of gloss paint on everything including the tower top section which I'm using as a work support at present.

Next up is to fit the base/hinge plate to the concrete plinth; which has been a bit of a head scratcher to calculate the stud length.  If the base studs are too long the hinged tower, base plate will hit the studs as the tower becomes upright.  I finally drew up to scale the complete action of the turning moment to plot the position of the holes in the plate assembly. 180mm OAL required.  Confusion was caused because, when I collected the tower I cut off the old studs for reference.  Trouble was the stud I was refering to was the 1 from the winch point which was  some 70mm longer.  It took a day before SWMBO said there a bag full of those studs in the shed, which on inspection, 12 off all 150mm long having lost 30mm on being cut off.   So studs to cut and fit and then start looking at getting the 12 mtr tower into place and getting wired up.


Cable clamp.



Alternator frame and connector plug

Andy
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8 KVA Lister TS2 Startamatic Genny
24 Volt 1000amp battery bank
Outback VFX3024
4.6 Kw PV array permanently ground mounted
Outback Flexmax 80
2 X Flexmax 30 PV CC
0.75 Kw wind turbine H Piggot design 2.4 Mtr Dia
12 Mtr lattice Tower.
u/floor heating from oil boiler cross linked to 12 Kw WBS
biff
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« Reply #362 on: November 11, 2018, 04:51:17 PM »

Really neat bit of work Andy,
                    You are almost over the line and soon the amps will be pouring in where they are needed. This is ideal W/T weather. Not a lot of sunlight and quite breezy. Our own baby sailed through most of these recent storms and by gum we must have had a dozen since Conor.
 Outside projects call for good dry boots and well insulated jackets. My own little 12v charger project bumps along a few hours each week. the shed of dreams is dank and chilly and I will not light a fire in there freeze.
 I must give an update on my 12v on it.. Keep up the good work.
                                                       Biff
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offthegridandy
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« Reply #363 on: Today at 05:57:53 PM »

Cheers Biff,

Nigh on 2 years ago I did a road trip to Cornwall to collect a 12 mtr monopole tower. Since fetching it back, it's been laid up in our yard about 10 miles away.  Today with the 2 sections fork lifted on to the 26 ft tri axle trailer, I shifted the tower back home so I can start rigging it up.  Due to lack of turning circle here I elected to reverse the last 1/2 mile up our track so as to be convenient for unloading.

The 2  sections are now here and on the deck having been unloaded with a trolley jack and a 3 mtr pole and some baulks of timber.  And patience.  I'll have to get a machine in to lift them together and into place on the hinge plate.

The turbine itself is now complete and well painted so on-wards.








From memory Ha ha, the top section is about 250 Kg and the lower is 470 Kg so not to be dropped on the toes.

Cheers.

Andy
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8 KVA Lister TS2 Startamatic Genny
24 Volt 1000amp battery bank
Outback VFX3024
4.6 Kw PV array permanently ground mounted
Outback Flexmax 80
2 X Flexmax 30 PV CC
0.75 Kw wind turbine H Piggot design 2.4 Mtr Dia
12 Mtr lattice Tower.
u/floor heating from oil boiler cross linked to 12 Kw WBS
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