Nishati AISPCA, Руководство по эксплуатации

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AISPCA!Operations!Manual!
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22!
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Preventive'Maintenance'Checks'and'Services'
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1.
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Tools!Required!
There!are!no!specialty!tools!required!for!the!preventive!maintenance!or!service!of!AISPCA!
2.
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Before!Operations!Checks!and!Services!
Before!operation!begins,!always!check!for!!
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! Physical!damage!
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Ensure!that!the!solar!panels!are!securely!attached!to!the!stand!
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! The!stand!is!secured!to!the!ground!with!a!minimum!of!12!sandbags!
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! All!electrical!connections!are!firmly!connected.!!
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In!addition!for!efficient!and!safe!operation,!verify!that!the!bypass!diodes!on!all!panels!are!
functional!using!one!of!the!two!test!methods!described!below.!
3.
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Verifying!that!panel!bypass!diodes!are!functional.!
Test!Method!1:!AISPCA!is!connected!to!a!GREENS!controller.!
a.
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With!solar!array!connected!to!GREENS!controller.!
b.
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Fold!each!of!the!4!solar!panels!one!at!a!time!and!note!the!change!in!output!power!on!
the!GREENS!controller!(figure!36).!
c.
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With!a!working!bypass!diode,!the!output!power!should!drop!only!by!about!20!to!30%.!If!
the!bypass!diode!is!not!operational!the!output!power!will!drop!close!to!0.!!
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For!example!if!all!four!panels!are!producing!350!watts,!then!3!panels!with!a!working!
diode!on!the!shaded!panel!should!product!around!250!watts.!If!the!power!goes!to!zero!
(or!close!to!it),!the!bypass!diode!on!the!shaded!panel!is!not!functioning!properly.!
d.
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If!a!panel!fails!remove!that!panel!from!the!array!and!replace!with!working!panel.!
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Figure!36:!Fold!one!panel!at!a!time!to!shade!it!from!the!sun!to!determine!whether!the!
bypass!diode!on!the!shaded!panel!is!functioning!properly.!
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