SOLAR

SOLAR

1. Frame & structure

   • Position and Orientation Errors
     • Incorrect orientation
       • Change orientation to the north side
     • Incorrect tilt angle (typically 10° - 35°)
       • Adjust the tilt angle according to the geographic location (typically 10° - 35°)
     • Shading from surrounding obstacle
       • Trim trees, relocate obstacles, or reposition panels to avoid shading
   • Structural Frame Errors
     • The frame is bent
       • Realign the frame to ensure straightness and secure any displaced parts
     • Frame not strong enough for wind load
       • Reinforce the frame structure or add supports to improve wind resistance
     • No grounding system
       • Install a proper grounding system in compliance with electrical safety standards

2. Solar Panels

   • Mechanical Installation Errors
     • Incorrect placement of panel clamps
       • Eposition the clamps properly, ensuring they do not damage sensitive parts of the panel
     • Loose bolts and nuts
       • Tighten bolts and nuts to the required torque specifications
   • Electrical System Errors
     • Incorrect polarity (+ and -) connections
       • Reconnect the cables with the correct polarity according to the wiring diagram
     • Faulty or loose connection cables
       • Replace damaged cables, tighten loose connections
     • MC4 burning
       • Replace MC4
   • Maintenance Errors
     • Dust, bird droppings, or algae
       • Clean the panels regularly with water and a soft cloth, avoid harsh chemicals
     • Failure to detect panel damage, solar crack, broken
       • Replace damaged panels or repair them if possible
     • Burning solar panel
       • Replace

3. Solar Box

   • Electrical Connection Errors
     • Loose or insecure connections
       • Check each connection point inside the box using a multimeter to measure voltage
         • Tighten the connections or replace damaged wire
     • Missing Labeling of solar groups.
       • Label each solar PU groups
     • Incorrect polarity (+) and (-) connections
       • Use a voltmeter to check the voltage at connection points
         • Reconnect the wires correctly according to the wiring diagram
     • Damaged or cut wires
       • Replace damaged wires or reconnect at the cut points
     • Lack of grounding system
       • Ground connections must be well made to each SPD to the grounding system.
   • Material and Quality Issues
     • Broken or cracked Solar Box
       • Replace the broken or damaged Solar Box with a high-quality one
     • Box not securely fastened
       • Secure the box firmly with screws or an appropriate protective frame

4. Battery

   • Battery Lifespan Issues
     • Difrent type of battrery
       • Change the same model (shoto, ZTT or VMC)
     • Battery swelling or bloating
       • Visually inspect the battery or feel for swelling signs
         • Replace the swollen battery immediately, avoid using a swollen battery
     • No light run battery, Battery has red Alarm
       • Push reset battery, measure Voltage and Current of DC
         • Voltage, Current = 0
           • Replace Battery
     • Capacity Battery lack
       • Calculator number battery need follow load
         • Add more battery
     • Stolen Battery
       • Request Branch Police report to Shiftleader
         • Reinforce battery cabinet and install new battery
     • Incorrect battery capacity configuration
       • Check the settings on the DC power cabinet
         • Change battery capacity setting according to CB
   • Connection and Cable Issues
     • Loose connection cables
       • Check all connections between the battery and device by gently pulling on the cables
         • Tighten all connectors, replace cables if damaged
     • Damaged connection cables
       • Inspect the entire wiring system and connection cables
         • Replace damaged cables or reconnect them to ensure uninterrupted current flow
     • Bad Battery connection
       • Battery connections must be in parallel

5. 5.- DC System

   • SPD
     • Burning
       • Replace
     • Damage
       • Color of "indicator" is RED
         • Change SPD
   • Wrong Electrical connections
     • Negative cable (blue) to CB, positive cable (black/red) to positive bus or PT
     • Cables must be properly adjusted
   • CSU
     • Alarm red in CSU
       • PU Communication Fail#4, PU have red Alarm
         • Burning
           • Replace
         • PU not working
           • Change slot PU, Check Voltage Input of PU 70-130
             • PU Not working
               • Replace PU
             • PU Working
               • Change slot PU
       • Battery Loop Broken#1
         • Sensor disconnected
           • Reconnect sensor
         • Bad configuration of Capacity breaker
           • Set capacity according quantity of batteries
         • Breaker empty
           • Turn off
         • CB Battery off
           • Turn on
       • SMR Communication Fail
         • Red alarm rectifier
           • Burn
             • See phisically is broken or burned internally
               • Replace Rectifier
           • Check "Work mode"
             • Set in "Free mode"
               • Recitfier not Working
                 • Test in other slot
                   • Recitfier not Working
                     • Change rectifier
           • Alarm Rectifier Overload
             • Caculator add more rectifier
     • Not Mornitoring DC cabinet
       • Mornitoring DC
     • Config wrong parameter in CSU
       • Battery Capacity
         • Only define Batt capacity at the connected battery_CB
       • Battery Shunt
         • Set to 300 mV
       • Float Charge Voltage
         • 53.2 V, Enable
       • Equalized Charge Voltage
         • 56.4 V, Enable
       • LLVD1 Voltage
         • 45 V, Enable
       • LLVD2 Voltage
         • 44.5 V, Enable
       • BLVD Voltage
         • 44 V, Enable
     • Burning
       • Replace
   • Breaker
     • AC
       • Measure with Multimeter Output Voltage in 0VAC
         • Turn off and turn on again, not turn on
           • Replace CB
     • Load
       • Load no connected
         • Turn off the not used breaker
       • Measure with Multimeter Output Voltage in 0VAC
         • Check again
     • Burning
       • Replace

6. 6.-Generator

   • Imformation of generator
     • Power, 1P/3P, Vendor, Gasoline/Diesel
     • The last maintainance
     • Quality maintainance
     • The last time run generator
     • Total time run generator 1 day in netnument
   • Battery Generator
     • Battery low power
       • Check battery voltage with a multimeter (below 12V indicates a weak battery).
         • Recharge the battery or replace it if it's worn out.
     • Battery casing cracked or leaking acid
       • Replace the battery to prevent safety hazards.
     • Battery swollen or deformed
       • - Stop using immediately and replace the battery.
     • Loose or corroded battery terminals
       • - Clean battery terminals with a specialized cleaner. - Tighten battery terminal connections.
   • Check alarm in CSU
     • Fail to start Alarm
       • Lack of fuel
         • Refill fuel
       • Clogged fuel filter or faulty fuel pumpl
         • Generator does not start or stalls after a short run.
           • - Inspect and clean or replace the fuel filter. - Check the fuel pump and fuel lines for blockages.
       • Starter system failure (relay, faulty starter motor)
         • - No response when pressing the start button, Or Clicking sound ("tick tick") but no engine rotation
           • - Check the starter relay and wiring connections. - Replace the starter motor if defective.

7. Check solar panel in system software

   • Imformation station
     • Name station, Problem of stie, Type of energy, Power consumption max, status.
     • Number Solar panel, Number battery
     • Check information interruption history
       • Number of days of information interruption per week?
       • Number of cells*h in a week?
     • Regular maintenance
       • Last maintenance date
       • Quality of maintenance
       • Maintenance cycle
   • Check for sizing solar
     • Check design with station load current
       • Give Soltuion Short Term
     • Check design with max load
       • Give solution long term
   • Mornitoring
     • Not mornitoring
       • Connection mornitoring
     • Have mornitoring
       • Check current, Voltage Input and Output of PU
         • Compare Voltage and Curent of PU, if Voltage out range 70-140
           • Suspected PU fault or solar panel needs replacement
             • TM come to site check
       • Check Warning of device
         • Alarm PU Communication Fail#4, Battery Loop Broken#1, SMR Communication Fail
           • Suspected PU fault or solar panel needs replacement
             • TM come to site check
       • Check config of Parameter
         • Wrong parameter Battery Capacity, Battery Shunt, Float Charge Voltage, Equalized Charge Voltage, Battery Charge Current Coefficient, LLVD1 Voltage, LLVD2 Voltage, BLVD Enabled
           • Change config

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