Cable Connections: Battery Bank

13»

Comments

  • TexasOffGridTexasOffGrid Posts: 19Registered Users ✭✭
    Well, My KID charge controller stopped working after 7 months...just went dead.  I sent it in for warranty.  The Tech said that four (4) capacitors were blown...and the unit saw 250+ volts?  I have a surge protector on the system...and 30A breaker...they were fine.  Is it possible I have a voltage leak in the system?  Yes the system is grounded!  Any ideas?  Thanks.
  • westbranchwestbranch Posts: 4,995Solar Expert ✭✭✭✭
    what brand of surge protection, and diagram of wiring with sizes if possible would be immensely helpful... lightning is a specialized beast as you obviously know
     
    KID #51B  4s 140W to 24V 900Ah C&D AGM
    CL#29032 FW 2126/ 2073/ 2133 175A E-Panel WBjr, 3 x 4s 140W to 24V 900Ah C&D AGM 
    Cotek ST1500W 24V Inverter,OmniCharge 3024,
    2 x Cisco WRT54GL i/c DD-WRT Rtr & Bridge, Hughes1100 Sat Modem
    Eu3/2/1000i Gens, 1680W & E-Panel/WBjr to come, CL #647 asleep
    West Chilcotin, BC, Canada
  • Raj174Raj174 Posts: 581Solar Expert ✭✭✭✭
    edited March 16 #64
    @TexasOffGrid  
    250+ volts PV input. Very likely lightning. Did you have a Midnite SPD installed between PV + and - inputs? 

    Rick
    12 x 300W Renogy PV, MNE175DR-TR epanel modified, MN Classic 150, Outback Radian GS4048A, Mate3, 54.4V 207AH HI Power LiFePO4 no BMS, 4000W gen.
  • TexasOffGridTexasOffGrid Posts: 19Registered Users ✭✭
    Hi, Yes, had a midnight SPD between the PV and Charge Controller.....on the positive line only...
  • Dave AngeliniDave Angelini Posts: 3,564Solar Expert ✭✭✭✭
    Well that is not good!  Do you think lightning and surges only like (+) ?
    "we go where power lines don't" Sierra Mountains near Mariposa/Yosemite CA
     http://members.sti.net/offgridsolar/
    E-mail [email protected]

  • westbranchwestbranch Posts: 4,995Solar Expert ✭✭✭✭
    I have  to assume they were 115 V for DC and not any of the higher rated DC ones or  for AC?



     
    KID #51B  4s 140W to 24V 900Ah C&D AGM
    CL#29032 FW 2126/ 2073/ 2133 175A E-Panel WBjr, 3 x 4s 140W to 24V 900Ah C&D AGM 
    Cotek ST1500W 24V Inverter,OmniCharge 3024,
    2 x Cisco WRT54GL i/c DD-WRT Rtr & Bridge, Hughes1100 Sat Modem
    Eu3/2/1000i Gens, 1680W & E-Panel/WBjr to come, CL #647 asleep
    West Chilcotin, BC, Canada
  • Raj174Raj174 Posts: 581Solar Expert ✭✭✭✭
    @TexasOffGrid
    I believe it should have been wired between PV + and PV- with a ground connection. Will Midnight replace under warranty?

    12 x 300W Renogy PV, MNE175DR-TR epanel modified, MN Classic 150, Outback Radian GS4048A, Mate3, 54.4V 207AH HI Power LiFePO4 no BMS, 4000W gen.
  • TexasOffGridTexasOffGrid Posts: 19Registered Users ✭✭
    Yes, Midnight repaired under warranty.
13»
Sign In or Register to comment.