Invertor connections to protect from utilty power backfeed
Hi , i would like to install a 2000 watt DC to AC inverter in my travel trailer. i would like to know with the inverter connected to the ac system of my trailer, how i can protect the inverter from a back feed when i connect shoreline power to the trailer from utility power source and the inverter is still turned on. Can it be done by the use of a cicuit breaker in line between the inverter and utility power source and if so which way should it be conncted. thanks.
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This information expands upon the error code information contained in the Link 2000 Owner?s Manual.
E-01 Inverter high DC/Battery voltage shutdown Battery voltage has risen above 15.5 VDC for 12-volt models or 31 VDC for 24-volt models.
E-02 Inverter low DC/Battery voltage shutdown Battery voltage has dropped below 10 VDC for 12-volt units or 20 VDC for 24-volt units.
E-03 Inverter or Charger overtemp shutdown Unit will reset automatically after it has cooled sufficiently.
E-04 Battery overload Caused by excessively discharged batteries. See section in inverter owner?s manual titled ?Charging overdischarged batteries.?
E-05 AC Backfeed AC power from an outside source has been fed to the AC output of the inverter. Potentially damaging to the unit. Disconnect incoming AC power and correct the situation.
E-06 Electronic Overload Inverter overload caused by too large a load or a short circuit. Reset by cycling power switch or connecting incoming AC power.
E-07 Triac control error Triac has overheated. Shut down unit and allow to cool.
E-08 High battery voltage shutdown during charge mode Check all charging sources for proper voltage. Reset by cycling the power switch.
E-10 Link 2000 de-powered This indicates that power was removed and restored to the Link 2000.
E-12 Battery #1 voltage sense leads open Blue wire is not connected to battery #1.
E-13 Battery #2 voltage sense leads open Violet wire is not connected to battery #2. E-14 Inappropriate Charged V selected for sensed voltage This value defaults to 13.2 for a 12-volt system, 26.4 for a 24-volt system. If this setting is above the voltage limits of the charging source, this error code will be displayed. Please refer to page 9 of the Link 2000 Owner?s Manual
E-15 Incoming AC polarity reversed Check incoming AC wiring for a reverse polarity condition.
CCC Indicates battery being charged. Displayed when Time remaining is selected. LO BAT More than 50% of declared capacity of battery 1 or battery 3 has been consumed.
OL Meter reading out of range U xx Designates a user setup CEF. Please read the sections pertaining to CEF on pages 19?22. A Designates Alternator output current on a Link 2000-R. is a number from 1?200. P Indicates Percent of charge mode selected. is a number from 1?100.
Please understand that the generator produces power from fuel with an engine wheras the invertor is one which genrerates power from a stored battery using the principle of frequency switching a DC source to induct and produce AC.
Now you can have an uninterupted power supply setting with the invertor backed up by the generator so that when the battery voltage goes down you can start and charge the invertor and also supply the extra energy .
the ratings of both must also be considered.
Hi, Battery to invertor should be quiet clear. Attach the positive then the negative lead.
There needs to be a special socket in the wall. Buy a normal three pin socket. Go to the mains. Take the line coming in and connect it to the L ('Live') marked pin. It is left one. Now take the other pin and trace it back to where electricity was originally going. What you have done is basically placed a socket in the line. See diag below:
Now take a plug. see diag and connect so that it has live going into the invertor and invertor supply coming out.
So basically you have looped the supply thru the invertor. Be sure to read the manual. Certain invertors may have other wiring.
Electricians are cheap. Get one. It will be worth it, in case you are unsure.
you can use an invertor to power a battery charger to charge the boat battery but you could not use the invertor to charge the battery it was running from as the invertor will use power faster then the battery could be charged
internal failure possibly on power side, lower than 300A fault current so unit could not trip i/p protection and as fault was post ac section, continued to burn internally. it just broke no breakers tripped out so it kept drawing current until the fault burnt away.
maybe this is what happened, need to know a lot more info to change hypothisis
I have had this same problem with several power inverters over time. The problem is usually one of three things.
Those starting with the simplest.
1. Too much current being drawn on the inverter.
Solution (Check appliances that are plugged in and make sure they are not drawing more than 1200 watts. If they are unplug the appliance that is using the most current and get an inverter that is more suited to your power needs.)
2. Some power inverters have fuses built on to them. Sometimes multiple fuses. Sometimes, one fuse may burn out leaving one intact. When this happens even small items draw too much current and over load the inverter.
Solution (Replace the fuses)
3. Improper installation. Inverters draw a lot of current. You must use the propper wire size for the inverter. I would recomend at least an eight guage wire directly fused and hooked directly to the battery. Of course like with all things the bigger the wire the better the flow of electricity.
If it is not one of those things stop into a truck stop electronics shop and have the person diagnose it.