Solic 200 Triac identification

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ecogeorge
Posts: 401
Joined: Sun Oct 31, 2021 7:23 pm
Location: Gloucestershire

Solic 200 Triac identification

#1

Post by ecogeorge »

Need to replace a Solic 200 Triac (I think ) - poor connection on immersion element -ran v hot and has stopped diverting despite saying it is ...........
I believe it says BTA400800B VV PHL101 -but is hard to read. Does anyone know correct part ? seem to be several variations of BTA40800B type...
Rgds George
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1750w Vertical PV micro inverters
3800w almost horizontal/south
Aarrow Becton 7 Woodburner
Dream 3kw ASHP only connected to summer Pool.
Allotment heavy clay.
1.784kw Kirk Hill
0.875kw Derril Water
0.2kwWhitelaw Brae
1kw Harlow Hydro.
ALAN/ALAN D

Re: Solic 200 Triac identification

#2

Post by ALAN/ALAN D »

Hello George
Have you measured the resistance of the heater / thermostat to confirm its not open circuit.
The BTA40-800B should not have failed with the wires going high resistance.
ecogeorge
Posts: 401
Joined: Sun Oct 31, 2021 7:23 pm
Location: Gloucestershire

Re: Solic 200 Triac identification

#3

Post by ecogeorge »

Hi Alan , - installed at brother in laws , -worked fine initially then he complained it was getting very hot / and stopped working........
Removed it himself then found a burnt neutral wire on his immersion element. unsure of the time sequence ? you've made me think -did he remove it prior to repairing wire ??
Guess i need to bench test it ,,,,,,,,,,
George
1750w Vertical PV micro inverters
3800w almost horizontal/south
Aarrow Becton 7 Woodburner
Dream 3kw ASHP only connected to summer Pool.
Allotment heavy clay.
1.784kw Kirk Hill
0.875kw Derril Water
0.2kwWhitelaw Brae
1kw Harlow Hydro.
ecogeorge
Posts: 401
Joined: Sun Oct 31, 2021 7:23 pm
Location: Gloucestershire

Re: Solic 200 Triac identification

#4

Post by ecogeorge »

Would it have got hot with high resistance ??
George
1750w Vertical PV micro inverters
3800w almost horizontal/south
Aarrow Becton 7 Woodburner
Dream 3kw ASHP only connected to summer Pool.
Allotment heavy clay.
1.784kw Kirk Hill
0.875kw Derril Water
0.2kwWhitelaw Brae
1kw Harlow Hydro.
ALAN/ALAN D

Re: Solic 200 Triac identification

#5

Post by ALAN/ALAN D »

I have played about with them connected to a 100 watt tungsten bulb / small heater while testing.
It should not have got hot.
High resistance on the immersion heater neutral should not have upset it.
Earth fault on the element would.
ecogeorge
Posts: 401
Joined: Sun Oct 31, 2021 7:23 pm
Location: Gloucestershire

Re: Solic 200 Triac identification

#6

Post by ecogeorge »

Hmmm - was definitely a burnt connection on immersion N. Think i need to test it . Was fitted to 4kw system with a low house consumption so perhaps was diverting lots before N on immersion failed .....(not previously used to heat water as on oil boiler) . Unsure how hot is hot ?
George
1750w Vertical PV micro inverters
3800w almost horizontal/south
Aarrow Becton 7 Woodburner
Dream 3kw ASHP only connected to summer Pool.
Allotment heavy clay.
1.784kw Kirk Hill
0.875kw Derril Water
0.2kwWhitelaw Brae
1kw Harlow Hydro.
ecogeorge
Posts: 401
Joined: Sun Oct 31, 2021 7:23 pm
Location: Gloucestershire

Re: Solic 200 Triac identification

#7

Post by ecogeorge »

Don't believe there is an earth fault ? but don't want to ask as he's given me the Solic 200 :D :D
George
1750w Vertical PV micro inverters
3800w almost horizontal/south
Aarrow Becton 7 Woodburner
Dream 3kw ASHP only connected to summer Pool.
Allotment heavy clay.
1.784kw Kirk Hill
0.875kw Derril Water
0.2kwWhitelaw Brae
1kw Harlow Hydro.
ALAN/ALAN D

Re: Solic 200 Triac identification

#8

Post by ALAN/ALAN D »

Testing on the work bench I just connect the current transformer onto an electric heater to simulate generation with the current transformer turned the other way round. :(
Marcus
Posts: 261
Joined: Mon Nov 08, 2021 6:25 pm

Re: Solic 200 Triac identification

#9

Post by Marcus »

Maybe worth doing a light bulb test before replacing the triac. But it's not unheard of for a poor connection to kill electronic components - arcing across the bad connection can cause voltage spikes. Although triacs more usually fail short-circuit, i.e. immersion continuously on.

BTA40800B seems to come up consistently with the right one for me:
BT = triac series
A = insulated case
40 = 40amps, RD91 package
800 = 800V
B = 50mA sensitivity

seems to be a STmicroelectronics part.
450W hydro-electric
5110W pv
1.3kw Wt2 - not yet producing
6kWh lead acid - maybe 1kwh useable
LiMnCo battery made from 2nd hand hybrid car modules 3.6kwh nominal 24v.
300lt hot water tank and two storage heaters
ASHP Grant Aerona 3 10.5kw and UFH
ecogeorge
Posts: 401
Joined: Sun Oct 31, 2021 7:23 pm
Location: Gloucestershire

Re: Solic 200 Triac identification

#10

Post by ecogeorge »

UPDATE
Finally got around to replacing Triac today and yes it works again :D :D
Nice cheap repair -thankyou China components.....
Temporary install to replace my wireless version which i have broken boost switch on pcb and has problem of cutting out on overheat (but not overheat) at low diversion levels.....will get repair or pcb replacement.....
Thanks all for input.....
Image

Image
1750w Vertical PV micro inverters
3800w almost horizontal/south
Aarrow Becton 7 Woodburner
Dream 3kw ASHP only connected to summer Pool.
Allotment heavy clay.
1.784kw Kirk Hill
0.875kw Derril Water
0.2kwWhitelaw Brae
1kw Harlow Hydro.
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