1000w solar panel? Is it even true

[Pineapple Smurf]

But volts do matter in this instance - since it will determine the arc gap required to effectively break the circuit. If you look at the post above with the breaker - you'll see that they wire them in series in order to meet the required arc gap.

In the replacement of a 1,000V 10A DC circuit breaker, can I use two 500V 10A DC circuit breakers in series?

Answer (1 of 3): Your guess is correct. A direct current (DC) circuit breaker that is rated 1000 VDC can’t be replaced by two series connected circuit breakers that are rated 500 VDC if the circuit voltage is greater than 500 VDC. The reason why is because the two breakers will never open at exa...

www.quora.com

 

[TheChamp]

The difference between series and parallel and the voltage and amps across it.

Wasn't that grade 8? I can't remember.

I started learning that in Standard 8.

 

[P924]

In the replacement of a 1,000V 10A DC circuit breaker, can I use two 500V 10A DC circuit breakers in series?

Answer (1 of 3): Your guess is correct. A direct current (DC) circuit breaker that is rated 1000 VDC can’t be replaced by two series connected circuit breakers that are rated 500 VDC if the circuit voltage is greater than 500 VDC. The reason why is because the two breakers will never open at exa...

www.quora.com

Yes, but in this case it is manufactured exactly to work like that - they are not independent breakers - they do open at the same time.

 

[Cosmik Debris]

Yes, they do make 1000W solar panels. OP's photo isn't one.

The 1000W panels, are larger than the normal 2x1m ish+- size.

Not 1000 Watts - 1000 Volts! DC nogal! Have a look at the pic again.

 

[Cosmik Debris]

Not really:

Or this:

Error 404 - MCE Electric

mce.co.za

Something horribly wrong with that info:

Voltage rating 880VDC / 1000VDC – 50Hz / 60Hz

The reason DC breakers are so big is they pull an arc and need arc quenchers which AC breakers don't due to the 0V of the sine wave.

 

[Azbubu]

Not 1000 Watts - 1000 Volts! DC nogal! Have a look at the pic again.

That's not uncommon for large panels.

 

[Azbubu]

 

[Cosmik Debris]

Grade 8 science? Did they teach you those things at grade 8? I have no recollection of what science we learnt at grade 8 but I started encountering current and voltage much later.

Yes, it was Grade 8 science. Shows how dumbed down education has become. In Grade 9 you were producing hydrogen and oxygen by electrolysing water.

 

[Azbubu]

 

[Cosmik Debris]

I think the point was that it does not make a big difference in terms of the size of the breaker, it's still a normal breaker compared to fridge sized breaker Cosmik was talking about.

DC pulls an arc when switching which is minimised in AC due to the 0 voltage 50 times a second of the sine wave. 1000 Volts DC will pull a serious arc when switching off.

 

[Cosmik Debris]

The difference between series and parallel and the voltage and amps across it.

Wasn't that grade 8? I can't remember.

Correct. Calculating the value of resistors and voltage in series and parallel. Grade 8 or Std 6 as we knew it.

 

[Cosmik Debris]

That's why he said it does not make a big difference.

There is an enormous difference switching 1000VAC and 1000VDC.

 

[itareanlnotani]

Not 1000 Watts - 1000 Volts! DC nogal! Have a look at the pic again.

I did, the first line says: 1000W

Hows your reading nogal?

Lower down it says total system voltage 1000V, which is reasonable, I have a 3 phase setup where my inverter can do about 800v, I stuck that system at 550v @ 16A though.

 

[Cosmik Debris]

That's not uncommon for large panels.

1000 Volts is common on solar panels? Yeah right. What voltage do the batteries run at? I suppose you have DC transformers to step the 1000 Volts down to the battery voltage too?

 

[Cosmik Debris]

I did, the first line says: 1000W

Hows your reading nogal?

Lower down it says total system voltage 1000V, which is reasonable, I have a 3 phase setup where my inverter can do about 800v, I stuck that system at 550v @ 16A though.

Look midway down - Max System Voltage - 1000VDC. Why would you need 800v when nothing you use is rated above 220VAC?

I bet your 220V household appliances really love getting a 550V supply...

 

[Azbubu]

1000 Volts is common on solar panels? Yeah right. What voltage do the batteries run at? I suppose you have DC transformers to step the 1000 Volts down to the battery voltage too?

I don't think you understand how to read the solar panel specs....1000V is very common now. I've attached enough pics for you above. They've even moved onto 1500V now. Here's an old article:

Waaree - India's largest Vertically Integrated Solar Energy Solution Company

www.waaree.com

 

[itareanlnotani]

1000 Volts is common on solar panels? Yeah right. What voltage do the batteries run at? I suppose you have DC transformers to step the 1000 Volts down to the battery voltage too?

Stop being a dumbass.

Heres the model i actually own, here in .za

https://sun-energy.com.ua/image/pdf/growatt_datash__0_20000_ue.pdf

It takes up to 1000V DC



The output is 3 phase AC.

 

[wingnut771]

Look midway down - Max System Voltage - 1000VDC. Why would you need 800v when nothing you use is rated above 220VAC?

Go onto google and google your favourite panel specs.

 

[Azbubu]

@Cosmik Debris This might help you understand what Maximum System Voltage means : https://electronics.stackexchange.c...th-below-specifications-i-have-some-questions

Keywords MAXIMUM and SYSTEM.

 

[TheChamp]

There is an enormous difference switching 1000VAC and 1000VDC.

Sure, but there isn't a big difference in the size of the breaker, that was the point of contention.