Basil Katakuzinos
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Basil Katakuzinos last won the day on March 25 2022
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Basil Katakuzinos's Achievements
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Basil Katakuzinos reacted to a post in a topic: Can I connect a hydro-electric generator to a Axpert inverter?
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Basil Katakuzinos reacted to a post in a topic: Can I connect a hydro-electric generator to a Axpert inverter?
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Basil Katakuzinos reacted to a post in a topic: Can I connect a hydro-electric generator to a Axpert inverter?
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Lithium Battery Whats good and what have you got
Basil Katakuzinos replied to Albert B's topic in Batteries
Have an install with a Freedom won 10/8 , 5KW Victron MPII and about 6kwp of solar. Upgrading to a second Freedom won 10/8 and an additional 3kwp of solar soon. They are great batteries... but … money... -
Booster pump on 8kW inverter
Basil Katakuzinos replied to Scubadude's topic in Water Heating & Pumping
Have a +- 1KW DAB Easybox diver, works fine on my MPII even when large loads are running also. I am not super educated in the realm of pumps but I would imagine a VSD would be better for solar/Offgrid because it is not drawing the full 1kw whenever it is running. -
Mever 1200Va Trolley in error mode
Basil Katakuzinos replied to Basil Katakuzinos's topic in Inverters
Caught my inverter charging the battery at 10A while the fan is off, that can not be a good sign... -
Mever 1200Va Trolley in error mode
Basil Katakuzinos replied to Basil Katakuzinos's topic in Inverters
Thanks @LLawrence. Inverter did not work off of their batteries at their factory either. Inverter main board has been replaced and it works fine now. Am busy arguing with Geewiz now about these inverters not being compatible with lithium. -
Basil Katakuzinos reacted to a post in a topic: Mever 1200Va Trolley in error mode
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Mever 1200Va Trolley in error mode
Basil Katakuzinos replied to Basil Katakuzinos's topic in Inverters
Apologies for the typos above, am on my phone. -
Mever 1200Va Trolley in error mode
Basil Katakuzinos replied to Basil Katakuzinos's topic in Inverters
Gewizz is closed for the week as they are moving and I woukd have to ship it from Stellenbosch to Joburg. Was planning on taking it to Mustek in cape Town tomorrow but after hearing this I am going to test in on a car battery tomorrow ( for the benifit of knowledge on the forum) and then email gewizz and tell them I will be returning the kit next week with the expectation of reviving a compatable inverter or a full refund(belive this is realistic and within the bounds of the CPA? ) . Now question is who will be liable for the courier cost and how the hell do I safely wrap the entire kit so it gets there in one piece, I didn't keep the shipping pallet. -
Mever 1200Va Trolley in error mode
Basil Katakuzinos replied to Basil Katakuzinos's topic in Inverters
Was purchased as a bundle, could you please indicate where Mecer states this incompatibility so I have a leg to stand on when I complain to Geewiz. https://www.geewiz.co.za/long-run-ups-inverter-battery/178181-1200va-mecer-inverter-100ah-lithium-battery-6-hour-battery-life-kit-720w-with-lithium-battery-3000-cycles.html -
Good day I have a Mecer 1200Va 700watt inverter trolley with a 100Ah Revov 1st life lithium battery. Bought from Geewiz I have cycled the battery no more than 5 times and never below 70% SOC (IE only 30% Depth of discharge) Voltage is at 13.7 Volts confirmed with a multimeter and the BMS app. Inverter charges the battery and is fine until the power is disconnected. When the power disconnects I can hear the relay thud and then immediately after the inverter displays the error screen and an audible beep is heard. I have disconnected all loads from the inverter, the same thing occurs. I have never drawn more than 400Watts from the inverter and my average load is about 150Watts. This all stated today after i left home for a week. When I left I switched the inverter off and unplugged it, battery was fully charged when I left and fully charged when I arrived a week later (today). Plugged everything back in and this is when the errors as stated above started, inverter is about a month old. Edit: This is at a different location to the below mentioned Victron system, which to this day has worked without a single issue. Charging at 10A
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LLawrence reacted to a post in a topic: Grey Water purified
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Why do my down lights flicker when Eskom is off.
Basil Katakuzinos replied to JacoG's topic in Lighting
Our down lights in the house where all those 12V DC Downlights with each 2 or 3 lights sharing a transformer. Lights used to flicker occasionally and the transformer buzzing was driving me mad, changed them to 230V GU10 Downlights and that solved my problems. Now our dimmers don't work but that is a project for another day. -
Hi guys, so heres my problem. We have a lift in our building and the main board tends to fail (often spectacularly) when the power is restored after load shedding. I could be wrong but I have a hunch this is due to power surges when the power is restored. I would like to know if their is a solution to this problem. I was thinking of a contactor connected to some sort of timer that waits 1-2 min after the power is restored before closing power to the lift circuit. Is their a product that does this or a simple configuration of components that can get this done. (The lift is 3 phase)
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Basil Katakuzinos reacted to a post in a topic: Earth Leakage trips when lightning starts in the area - SOLVED
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Douw G. Gerber reacted to a post in a topic: Earth Leakage trips when lightning starts in the area - SOLVED
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Basil Katakuzinos reacted to a post in a topic: Earth Leakage trips when lightning starts in the area - SOLVED
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Is your inverter protected by this earth leakage (eskom >>> earth leakage >>> inverter), if this is the case then this may be your problem. It is recommended to not have your inverter protected by earth leakage but to only have the loads protected. so your power should flow as follows eskom >>> main breaker >>> inverter >>> earth leakage a >>> essential loads eskom >>> main breaker >>> earth leakage b>>> non essential loads where earth leakage a and b are two separate breakers. PS. I have not included some protection devices (like MCB's) above as the above example is just to show where the earth leakage should be placed. PPS. My system has the solar earth and AC mains earth connected to the same grounding rod, though I do not have the experience to say with confidence that this is the correct and best practice method. Edit: On second thought, I feel confident enough to say that your inverter should not be fed from earth leakage, here is a quote from Victron Wiring unlimited "An RCD must be mounted before the loads in an electrical installation. In reality this means that the RCDs have to be mounted before the installation is split up into different groups. If an inverter or inverter/charger is used, the RCD should come after this, otherwise there will be no earth protection while the inverter is operational. Consumers that are only operational when connected to shore power will need their own RCD."
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Psy reacted to a post in a topic: Alpha ESS system will not charge
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I feel like this could possibly be a communication problem between the BMS and the inverter. Surely this is alphas problem to solve considdering they replaced the inverter.
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Basil Katakuzinos reacted to a post in a topic: Flood Light Questions?
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Basil Katakuzinos reacted to a post in a topic: Building new House Plan - DB Board Location
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Basil Katakuzinos reacted to a post in a topic: Building new House Plan - DB Board Location
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Basil Katakuzinos reacted to a post in a topic: Building new House Plan - DB Board Location
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New Solar install - Battery constantly charging and discharging
Basil Katakuzinos replied to molesza's topic in Solar Power
As the battery fills up, it will start accepting less charge current. I feel like this may be what you are noticing. IE when the battery is closer to 100% it can not charge as fast as it can at 80% You can monitor this on your remote consol under battery parameters, you will see the Charge Current Limit set by your battery. I would stronly suggest setting your batteries to optimised with battery life and setting the SOC limit lower than 100% as this will give your system a buffer to use and reduce your reliance on eskom. Even if it is just at 85% -
From my understanding you will have problems.
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Microinverters output AC Power onto an existing grid. Your UPS can not make use of that.