MINIMUM COIL, SSR RELAY and STEP DOWN: How Not to Protect the Charge Controller (It Went Wrong)

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Published on Apr 7, 2024

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The basic idea was to protect the charge controller with a minimum voltage coil, that is, when the voltage goes away, the coil disconnects the panels! So I equipped myself with this undervoltage release, but since it is 230V I thought of getting around this limitation with an SSR relay but... everything went wrong, an epic fail came out! In the video I make several attempts to try to achieve the goal, in the end it will be useful to understand what it is and how to use a minimum coil, an SSR relay and a step down! If you have suggestions on how to solve the problem reported, write it in the comments, thanks! --- One step at a time, trying not to take anything for granted, we will create my photovoltaic system consisting of: 550W photovoltaic panels (5.5kW nominal) 6kW toroidal inverter approximately 14kW battery Subscribe to the channel to stay connected and not miss the next videos in this series. Thank you, Donatello #photovoltaic #DIY #offgrid ===== my always updated schemes (with last update date) ===== https://drive.google.com/drive/folder... ===== the products used in this video ===== CHINT V9 Minimum Voltage Release Coil 230V AliExpress: https://it.aliexpress.com/item/100500... Mini ANL Fuses AliExpress: https://it.aliexpress.com/item/329246... SSR Relay Din LinkFreely TRA23D10K in DC 3-32 out AC 24-280 AliExpress: https://it.aliexpress.com/item/329816... SSR Relay DC-DC SSR-60DD 60A 3-32VDC Amazon: https://amzn.to/3SHESPs PLC DIN Box 90x18x58 with clamps AliExpress: https://it.aliexpress.com/item/100500... Step Down DC DC XL7015 in 5-80V out 5-20V Amazon: https://amzn.to/3xqFwKp Electrician Scissors USAG 207E Amazon: https://amzn.to/3E4bWKq RUZIZAO Bench Power Supply 30V 10A Amazon: https://amzn.to/49t0eqk RUZIZAO Bench Power Supply 60V 5A Amazon: https://amzn.to/4atPj0m TESMEN TM-510 Automatic Digital Multimeter with NCV Function (with DISCOUNT) Amazon: https://www.amazon.it/dp/B0BLZ7GN2X?m... KAIWEETS HT206D Clamp Multimeter Digital Amperometric 600V Amazon: https://amzn.to/3GzrN5h BMS / ELERIX CPM Cell Performance Monitor GWL: https://shop.gwl.eu/Battery-Managemen... BMS / ELERIX BCC Battery Communicator and Controller for CPM GWL: https://shop.gwl.eu/en/By-Brand-Manuf... Balancer / Neey 4A 4th Gen AliExpress: https://www.aliexpress.com/item/10050... Victron Smart Shunt 500A/50mV Amazon: https://amzn.to/43dg2Kz Bistable Relay / JW500C 12V 500A with magnetic contact eBay: https://www.ebay.it/itm/204436136111 AliExpress 24S LCD Cell Display: https://it.aliexpress.com/item/100500... ---------- At your local hardware store: M8 Threaded Rods 1m x 8mm M8 Self-Locking Nuts M6 Flange Nuts Spring Washers (Split) Sheath ===== Background Music ===== Mogo Mogo / Stream of Melodies / Freesound Music (no copyright music): Book Bag Privatissimo Dexters Decks Coffee Sipping Sunny Vibes Members Only You know Her Face Bet On It The Thought of You By the Fireplace

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