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Alternative Power
Supplier and installer of inverter with batteries (JHB)
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<blockquote data-quote="sajunky" data-source="post: 974998" data-attributes="member: 22308"><p>With 3kVA it will be difficult to get a good brand online version, but not required in your case. Just make note that a real power will be about 2.4kW, so make adjustment. I would be looking rather for 48V inverter and 2x 24V batteries. It is because it will be easier in future upgrade to lithium batteries (assuming inverter support lithium batteries). At the moment lithium batteries are expensive, but are gaining popularity.</p><p></p><p>I suggest to look around and post your propositions. I only touched a problem 2-3 years ago when installing network in a friends home office. They had continuous problems with lightnings, blowing up computers and network equipment every few months. I advised to install class 2 surge protectors in a power distributor box. Since then they didn't have a single failure. As you will have to make changes in the distribution box, it is the best time to install protection devices too. I do recommend these two:</p><p></p><p>https://www.communica.co.za/products/crl-12-00232</p><p>https://www.communica.co.za/products/crl-12-00238</p><p></p><p>or a single combo device:</p><p>https://www.communica.co.za/products/crl-12-00417</p><p></p><p>They normally protect and do not blow itself, but when it happens, modules are user replaceable and there are not very expensive. Install as close as possible to the main switch and forget about lightning (unless it is a direct strike).</p><p></p><p>Remember that inverter can fail during a surge. When it happens, batteries will be short. Quite expensive, better think ahead.</p></blockquote><p></p>
[QUOTE="sajunky, post: 974998, member: 22308"] With 3kVA it will be difficult to get a good brand online version, but not required in your case. Just make note that a real power will be about 2.4kW, so make adjustment. I would be looking rather for 48V inverter and 2x 24V batteries. It is because it will be easier in future upgrade to lithium batteries (assuming inverter support lithium batteries). At the moment lithium batteries are expensive, but are gaining popularity. I suggest to look around and post your propositions. I only touched a problem 2-3 years ago when installing network in a friends home office. They had continuous problems with lightnings, blowing up computers and network equipment every few months. I advised to install class 2 surge protectors in a power distributor box. Since then they didn't have a single failure. As you will have to make changes in the distribution box, it is the best time to install protection devices too. I do recommend these two: https://www.communica.co.za/products/crl-12-00232 https://www.communica.co.za/products/crl-12-00238 or a single combo device: https://www.communica.co.za/products/crl-12-00417 They normally protect and do not blow itself, but when it happens, modules are user replaceable and there are not very expensive. Install as close as possible to the main switch and forget about lightning (unless it is a direct strike). Remember that inverter can fail during a surge. When it happens, batteries will be short. Quite expensive, better think ahead. [/QUOTE]
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Alternative Power
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