Mike Powell
New Member
Hi All, I have a Solark 15k inverter with 2 Fortress E-Vault Max 18.5kw each batteries for a total of 37kw of storage. I am completely off grid. When I am trying to charge with my main prime power 9kw Perkins diesel generator, the internal transfer switch will not click on if there is a load above 2kw or if it’s below and does transfer over, it will disconnect whenever another load is kicked on such as a dryer, coffee maker, microwave etc.. it is set in General Standard, the thresholds are maxed out as per Solark. I’ve tried three separate generators and they all do it whether it’s on grid input or gen input. I’ve tried a brand new 15k Perkins diesel prime power generator, my standard 9kw Perkins diesel prime power, a portable 12kw gas generator and all three have the same issue.
Solark says it’s the generators and not their product. I eventually was able to get them to send me a replacement under warranty however, they send me a used one and it does the same thing. The frequency will stick between 60.1hz to 59.2hz even under the load shift. I have those parameters maxed out too just in case as per their instructions.
This is super frustrating. If the inverter providing more than 2kw and I try to charge with the generator, it’ll continually fail on the transfer switch. If I disconnect all loads, it’ll transfer just fine. When I apply those loads, it’ll trip and then reconnect but sometimes it won’t reconnect. The voltages between L1 and L2 are within spec (+- 2v). Thankfully my new solar array I installed has been working very well. My average charge is 34kw per day with the solar, I have 3 cabins running on this system. The most I’ve seen is 53kw produced by the solar array with as many loads as I could run throughout the day trying to see how much I can get! I have a solar tracking pole that has 20 panels at 365w each plus another tracking pole with my old 8 panels of 130w each.
Has anyone had this same issue, any suggestions?
Solark says it’s the generators and not their product. I eventually was able to get them to send me a replacement under warranty however, they send me a used one and it does the same thing. The frequency will stick between 60.1hz to 59.2hz even under the load shift. I have those parameters maxed out too just in case as per their instructions.
This is super frustrating. If the inverter providing more than 2kw and I try to charge with the generator, it’ll continually fail on the transfer switch. If I disconnect all loads, it’ll transfer just fine. When I apply those loads, it’ll trip and then reconnect but sometimes it won’t reconnect. The voltages between L1 and L2 are within spec (+- 2v). Thankfully my new solar array I installed has been working very well. My average charge is 34kw per day with the solar, I have 3 cabins running on this system. The most I’ve seen is 53kw produced by the solar array with as many loads as I could run throughout the day trying to see how much I can get! I have a solar tracking pole that has 20 panels at 365w each plus another tracking pole with my old 8 panels of 130w each.
Has anyone had this same issue, any suggestions?
