Fault Finding in Solar PV Systems

Fault Finding in Solar PV Systems - PV ISOTEST

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Күн бұрын

Discover the power of the PV Isotest instrument from TIS as we unravel the mystery of solar panel faults. This captivating video demonstrates effectively locating faults within a solar panel string. Watch as we navigate the features of this impressive solar installation tester, including performing insulation tests and utilising the Ground Fault Locator function. Gain insights into other crucial test parameters like the Dialectric Absorbtion Ratio (DAR) and Polarization Index (PI).
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00:00 A solar panel problem
00:55 Introducing the PV-Isotest
01:10 Performing a solar panel insulation test
01:40 Tester connections
02:57 Timed mode - PI & DAR
03:49 Tracking down the fault
04:09 Ground fault location test
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Learn More -
hub.efixx.co.uk/TIS-ISO-TEST
Further reading on DAR and PI ratios.
www.ht-instruments.co.uk/en-g...
(see Appendix 11 - page 37)

Пікірлер: 10

@brianwood5220 6 ай бұрын

TIS have some great kit. This instrument is part of that, thanks for sharing, Gordon.🧑‍🎄🧑‍🎄🧑‍🎄🧑‍🎄

@chrishorne3185 6 ай бұрын

Great video Gordon 👏 Showing another great test instrument from the national award winning company TIS 👏👏

@freelifeproductions 6 ай бұрын

we just are starting to use these testers.. still kind of a struggle to get good PE test to the panels construction. as the inverter is not always in range of the panels..

@retrozmachine1189 6 ай бұрын

I guess it measures the voltage between the conductors and earth to work out where the fault is? If that's the case I wonder how it copes with two earth faults. Might be interesting of @eFIXX causes two or more faults in their setup as a test. Wouldn't it be fascinating if it can detect that and report each fault separately.

@orjanborgstrom4548 6 ай бұрын

I saw a g/y conductor on the roof. If it is a functional earthing it is not allowd to be g/y. Greetings from Sweden.

@danieltaon 6 ай бұрын

There is a big issue on PV installation and measuring Riso, when grounding dont have continuity between all the panels the measurement is not trustable, advised is to use poking clamps between panels, so they poke trough anodised surface of the panel.

@retrozmachine1189 6 ай бұрын

I can see how a penetrating clamp would give conduction between the panels but not how it would give good conduction to the rails. It's a requirement here, Australia, that removing any single panel must not disrupt earthing of other panels. The penetrating washers that sit between the panels and rails achieves both conduction between panels and connection to the rails to ensure everything is tied together and removing one panel does not disrupt overall earthing. Nothing wrong with a belt and suspenders approach and using both of course.

@danieltaon 6 ай бұрын

@retrozmachine1189 I'm with you man, there is no good solution yet, here in Europe almost 90%+ parka builded wrong, no poking clamps no ground continuity beyond secon panel. I Have HT pviso meter, but when ground is not continued it shows always >100MOhms