These are redundant secondary power sources with battery charge. There are two modifications of this device, IVEP-12-1.6A and IVEP-12-1.6A1. This device is used before encountering lightning in the burglar alarm. In this video, I will troubleshoot the Etra IVEP 12 1.6A1 energy backup device, as well as consider the problem and I will repair the power supply. They brought me a power supply as a gift, which blew during a severe thunderstorm.
This source of redundancy was burnt down by experts, replacing the fuse on the burnt circuit. And they didn’t even look at the fact that there are torn parts and burnouts on the board. Well, at least they left a new fuse, and thanks for that. I decided to poke around and see what the reason for the inoperability is. After inspection, I found the capacitors to be broken, which I dropped out so as not to interfere. Then I found a burned-out road, which I also restored. Well, what my repair stalled on is a broken PWM controller, which I don’t have money to order yet. But as the spare part arrives, I will continue the repair and show you how the matter ended.
As a result, in addition to the PWM controller, the power supply turned out to be fully operational. With the replacement of the shim and the connection of the battery, the source turned out to be in full working order, and it gave excellent voltage both with the network connected and when disconnected from the network, from a charged battery. Often after a thunderstorm, if the device malfunctions, the input part of the converter suffers. In such cases, with failed power supplies, I do not recommend changing the fuse and hoping that the device will work. This is not a transformer power supply. Here, when the fuse fails, the failed board is protected from more serious damage. This applies to any impulse devices. Charge controllers, inverters and more.
