New to the PV industry

[adammid]

Hi guys, I don't have any experience at PV installations and just wanting to learn about it. Can any one recommend any good books, DVDs to learn from? Don't want to splash out on a course yet.

Are people fitting high voltage in series, low voltage systems or micro inverter systems?

Many thanks

 

[Sidewinder]

No one here will be fitting HV systems I would venture.

All will be fitting LV systems.

 

[adammid]

I mean HV dc power

 

[Sidewinder]

So what d.c voltage are you expecting in these d.c. HV systems?

 

[adammid]

Sidewinder- 1000 vdc I understand its still classed as low voltage ac.

 

[steptoe]

Sidewinder- 1000 vdc I understand its still classed as low voltage ac.

well NO

since when was DC ever classed as AC ? at any voltage level?

 

[adammid]

It never was step toe. I asked if people are installing HV PV meaning hv dc and then the above post said its still classed as lv.

 

[steptoe]

Sidewinder- 1000 vdc I understand its still classed as low voltage ac.

It never was step toe. I asked if people are installing HV PV meaning hv dc and then the above post said its still classed as lv.

well, you stated its the same? :|

 

[adammid]

Meaning if grid tied it would feed back onto lv ac.

 

[Jono Pashley]

afaik the power bands are the same meaning the systems would be LOW voltage DC.

 

[adammid]

Anyway like I said I have no experience at PV my original post was asking if anyone knew where to get hold of some basic PV info. Any good books etc that anyone can recommend?

 

[steptoe]

OK,

BASIC info

LOW VOLTAGE is low voltage

HIGH VOLTAGE is high voltage

DC and AC are differing types of delivering CURRENT,

DC = direct CURRENT

AC = alternating CURRENT

are we keeping up so far?

 

[philbas]

Take a look in the Big Green Book for the definition of Low Voltage I haven't got mine to hand so can't post the page for you...

I do have the book to hand.

Page36

Voltage Nominal

Summary not a quote

Extra-low 50 V ac or 120 V ripple free dc

Low 1000 V ac or 1500 V dc between conductors or 600 V ac, 900 V dc conductors and earth

High Greater than the above

 

[steptoe]

OK,

so define how a 1000v DC solar system is going to be HV ?

 

[Sharpend]

Sidewinder- 1000 vdc I understand its still classed as low voltage ac.

I suggest that a book by a certain mr tesla the founding father of AC might assist with your confusion.

 

[philbas]

OK,so define how a 1000v DC solar system is going to be HV ?

Not sure if that was in reply to me or not, It just followed my post.

1000v DC is clearly not HV

I was just throwing in the page number because Sidey doesn't want to walk to the van and get his book out, and I hand mine to hand

 

[steptoe]

just a general reply

DC is current

AC is current

V is voltage,

 

[adammid]

Step toe- I have been on the post a while and read a number of your comments. You seem an intelligent bloke but you seem to love to humiliate the lesser experience. This is a forum, people come here for advice not to be humiliated after all we know that everyone can talk a good job don't we?? I suggest that if you are not able to provide any relevant knowledge then I suggest you keep your moaning or banter between you and your mates down the local pub! At least they might think it's worth listening to you moan.

 

[Jono Pashley]

If you didnt seem so much like a troll half the time maybe Steps would take you more seriously.

 

[adammid]

Yawn yawn