Problem in Trannergy Inverter

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  • nalinpc3
    Junior Member
    • Nov 2013
    • 11
    #1

    Problem in Trannergy Inverter

    I installed the trannergy 3kW inverter in one of my project. But it's giving poor performance. chart.jpeg
    This is a single day power chart. I checked all connection, wires, and all possible things. But still same result. What would be the problem. I have installed several system but only this is giving this result. Pls help me to sort out this
    Tags: None
    • Mike90250
      Moderator
      • May 2009
      • 16020
      #2
      i suspect it's overheating and cutting back till it cools off later in the day. is it exposed to the sun ? does it have good cooling airflow around it ?
      Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
      || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
      || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

      solar: http://tinyurl.com/LMR-Solar
      gen: http://tinyurl.com/LMR-Lister

        Comment

        • nalinpc3
          Junior Member
          • Nov 2013
          • 11
          #3
          no

          Originally posted by Mike90250
          i suspect it's overheating and cutting back till it cools off later in the day. is it exposed to the sun ? does it have good cooling airflow around it ?
          It's having good air flow and it's not exposed to the sun and the temperature also maintaining good. It's totally normal. What if the MPPT is not functioning properly

            Comment

            • Mike90250
              Moderator
              • May 2009
              • 16020
              #4
              First thing I see is jagged peaks and valleys. So it's a cloudy/sunny day. 10% to full power and back, every 5 minutes.

              2nd is the dip in the middle, which has got to be thermal. If the inverter is ok, then there are a bunch of panels or connections that are going bad in the heat. Are these NEW panels, seconds, used ? One dud would barely be noticeable, but I'm seeing half dozen bad ones cutting out in the heat, and recovering as it cools off.

              That's the only way i can explain the power dip. Or - check the connections in the boxes with an IR thermometer. Maybe a loose wire is heating up and going bad at high power.
              Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
              || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
              || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

              solar: http://tinyurl.com/LMR-Solar
              gen: http://tinyurl.com/LMR-Lister

                Comment

                • nalinpc3
                  Junior Member
                  • Nov 2013
                  • 11
                  #5
                  Originally posted by Mike90250
                  First thing I see is jagged peaks and valleys. So it's a cloudy/sunny day. 10% to full power and back, every 5 minutes.

                  2nd is the dip in the middle, which has got to be thermal. If the inverter is ok, then there are a bunch of panels or connections that are going bad in the heat. Are these NEW panels, seconds, used ? One dud would barely be noticeable, but I'm seeing half dozen bad ones cutting out in the heat, and recovering as it cools off.

                  That's the only way i can explain the power dip. Or - check the connections in the boxes with an IR thermometer. Maybe a loose wire is heating up and going bad at high power.
                  OK I will check. They are brand new and even I change the wire also. But still the same But as I observe the voltage is steady. Anyway I will check the connections. thank you for your help

                    Comment

                    • nalinpc3
                      Junior Member
                      • Nov 2013
                      • 11
                      #6
                      Originally posted by nalinpc3
                      OK I will check. They are brand new and even I change the wire also. But still the same But as I observe the voltage is steady. Anyway I will check the connections. thank you for your help
                      You can check online through this portal. give me some relief
                      http://log.trannergy.com/Terminal/TerminalReal.aspx?pid=652&key=7HE6G89

                        Comment

                        • nalinpc3
                          Junior Member
                          • Nov 2013
                          • 11
                          #7
                          Originally posted by nalinpc3
                          You can check online through this portal. give me some relief
                          http://log.trannergy.com/Terminal/Te...52&key=7HE6G89
                          and this is mostly happening all the time but in sunny days it will shows more fluctuations.
                          If I don't. Have a thermal scan what can I do for finding bad connections.

                            Comment

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