1000w solar panel? Is it even true

Cosmik Debris said:
Ron, this is for long distance AC transmission. Long distance DC transmission requires thick cables, the reason long distance transmission is via AC, thinner cables and high voltage.

No local authority is going to allow 1000V system distribution in a house. Houses are 220V, Factories 380V and maritime voltages 440V. The Eskom breaker for most houses is 80 Amps but according to some here, their systems are capable of 6000 Amps. Those are industrial power requirements and specialised personnel are required to work with and switch them.
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You're a bit confused.

A solar system can be run at high voltage (I have a setup like that, as previously noted).
The system inverter will then convert that to more commonly used AC voltage.

In my case, to 380v in 3 phase.
The house its installed in has a 3 phase 60A incoming line, and I have a standalone setup for the inverter to power some of the circuits.
 
itareanlnotani said:
The value of the kA rating determines how much current the circuit breaker can withstand under fault conditions. For example, a value of 6kA means that the circuit breaker can withstand 6,000 amps of current during the brief time it takes to trip.
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How would you ever reach 6000 Amps in a home? Any breaker used in a home will be vaporised by 6000 Amps. A spanner across your car battery terminals is far less than 6000 Amps.
 
itareanlnotani said:
You're a bit confused.

A solar system can be run at high voltage (I have a setup like that, as previously noted).
The system inverter will then convert that to more commonly used AC voltage.

In my case, to 380v in 3 phase.
The house its installed in has a 3 phase 60A incoming line, and I have a standalone setup for the inverter to power some of the circuits.
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So why do you need a 1000 Volt system voltage at all? How do you even measure 1000V on most meters other than high quality Flukes and others?
 
Cosmik Debris said:
Your electrical knowledge is dangerous. Why would you need to handle 6000 Amps in a home at all and what to you is a short time? So, according to you it's acceptable to massively overload a system for "a short time"? What do the regulations state regarding overcurrent delay and instantaneous trips and what percentage overload is acceptable?
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And yours is downright suicidal IF you don't even know what the specifications on a CB mean.
 
Cosmik Debris said:
So why do you need a 1000 Volt system voltage at all? How do you even measure 1000V on most meters other than high quality Flukes and others?
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Simple answer - as I don't have 10-15KW of panels connected to the system.

Just because the equipment can handle it doesn't mean I need to run the system at that voltage.
My decision making for that install was driven by my requirements, not by your fixation on it can do 1000v so it must be run at 1000v.

System spec for a solar install will be dictated by a few factors. Roof size, power usage requirements, budget, etc.

Its a little overkill for a residential install, and the equipment is aimed more at lower end industrial installs, but it works fine for my needs.
 
Cosmik Debris said:
So why do you need a 1000 Volt system voltage at all? How do you even measure 1000V on most meters other than high quality Flukes and others?
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That's how they sell it like from the shop, have you ever demanded an explanation from the dealer about the top speed of 200km/h on a car because you only need 120km/h?
 
Cosmik Debris said:
I do. And I'd like to see any circuit capable of drawing 6000 Amps in a home.
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So go and walk over to your DB and post what the specs are on your ELCB. Or if you prefer the new fancy word RCD? But just remember and ELCB is NOT exactly the same as an RCD.
 
itareanlnotani said:
Simple answer - as I don't have 10-15KW of panels connected to the system.

Just because the equipment can handle it doesn't mean I need to run the system at that voltage.
My decision making for that install was driven by my requirements, not by your fixation on it can do 1000v so it must be run at 1000v.

System spec for a solar install will be dictated by a few factors. Roof size, power usage requirements, budget, etc.

Its a little overkill for a residential install, and the equipment is aimed more at lower end industrial installs, but it works fine for my needs.
Click to expand...

What solar panel system can supply 1000 Volts? Power is calculated by P = VI Where:

P - Power in Watt.
V - Volts
I - Amp

Therefore, if you have 1000V for 15kW, the amperage will be 15 Amps.

But if most panels give around 40V, at 15kW you will draw 375 Amps. Far below 6000 Amps.

Wherefore this 6000 Amp breaker?

I don't have a fixation on 1000V. Have a look at the pic in the OP.
 
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