Alpha ESS STORION-T50 Operation & Maintenance Manual page 20

ROUTINE MAINTENANCE
Test PCS switch,
Switches,
circuit contactor, circuit
breakers, breaker, protection
contactors function
Lightning Check lightning
protection
protection device,
device DC fuse
9.2.2. Routine maintenance
9.2.2.1 Power on maintenance
Maintenance items Maintenance requirements
1.Battery
Complete discharge-charge-discharge cycle
Battery capacity
calibration
Analyze the recorded BMS data (completed by
Battery data analysis
Alpha employees)
1. The function of the circuit breaker is
Check the switch
normal; There should be no voltage when the
function and trip
circuit breaker is disconnected. Use a
function of the
multimeter to detect the DC voltage gear.
high-voltage control box
2. Tripping function detection: When the
circuit breaker
circuit breaker is closed, use the host
computer to send a command, and the circuit
breaker normally trips.
When the system is in normal operation,
Whether the insulation
confirm whether the BMS has reported
resistance of the DC side
insulation failure. If there is no fault, the
of the system is within a
insulation resistance is within the reasonable
reasonable range
range.
2.System
Check the contactors (auxiliary switches or
micro switches) in turn every year and ensure
Circuit breaker
their normal operation;
maintenance
Check operating parameters (pay special
attention to voltage and insulation)
PCS switches,
contactors, circuit
Once 12
breakers, and
protection months
functions are
normal
The connection
should be firm, the
interface should not
be oxidized, and the
Once 12
protection action
months
should not be
triggered under
normal working
conditions
Time
Once 6 months
Once 6 months
Once 6 months
Once 6 months
Once 6 months
34 35
Security
3.PCS
Exterior
Operating
status
Environment
9.2.2.2 Power off maintenance
Maintenance items
1.Battery
Fixing the battery rack
Battery rack grounding
Battery fixed
Copper row fixed
Insulation protection
Battery label
Battery grounding
High control box
grounding
Junction box grounding
Check the LCD screen;
Simulate the power off and check whether the
communication signal is available during the power
off
Check if the inverter is damaged or deformed
Check whether the inverter makes abnormal
noises during operation; Check whether all
components are normal during the operation of
the inverter; Check the temperature of the
inverter shell and use a thermal imager to monitor
the temperature of the system
Check whether the air inlet/outlet is normal;
Check the humidity and dust around the inverter,
and ensure that the filter device at the air inlet is
working properly
Maintenance requirements
The bracket is fastened to the bottom fixing place
Use a multimeter for grounding test
The battery is fastened to the battery holder
Check that the copper bar is well fixed.
Please use the same type of copper bar If
you need to replace it.
Protective cover on battery rack
Replace with the same label
Use a multimeter for grounding test
Use a multimeter for grounding test
Use a multimeter for grounding test
ROUTINE MAINTENANCE
Once 6 months
Once 6 months
Once 6 months
Once 6 months
Time
Once 6 months
Once 6 months
Once 6 months
Once 6 months
Once 3 months
Once 3 months
Once 3 months
Once 3 months
Once 3 months