C
P-099
NA1
Air Circuit Breaker
17.2 Faulty tripping analysis (taking NA1-2000X M as an example)
Failure cause identification
The failures are identified through the intelligent controller
indication..
NA1
Air Circuit Breaker
P-100
16.3.2 Replacement of draw-out accessories
Rotate the body to the detachment position and remove the
body.
Remove the panel fixing bolts and dismantle the panel.
Untie the tape and remove the connecting conductor.
Remove the fixed accessory mounting screws.
Dismantle the accessories and replace same.
Note: The shunt release should be first dismantled before replacing the NA1-2000
undervoltage release.
17. Common Failure Causes and Solutions
17.1 Troubleshooting logic
The controller
is reset or not
The controller reset
button is reset
Maintain the UVT
attracting and mannal
opening operation
Opening or not
Inspect the UVT
and closed
electromagnet
Begin
Circuit breaker
opening failure
Circuit breaker
closing failure
Manual opening
failure
Shunt release
opening failure
UVT opening
failure
Energy-storage
or not
Drawer set is
rotated in position
or not
Inspect the
mechanism
Inspect the
shnnt release
Inspect the
UVT
Inspect the
moto
The drawer set is
rotated in position
Inspect the
interlocking
device
The shunt
release is charged
or not
Inspect the
shunt
release
commection
Inspect the
mechanism
Inspect items:
1
、
The
connection
line
is
normnal
or
nor
.
2、
The connection voltage conforms to the
requirement
or
not
.
3
、
The
components are damaged or not.
please replace the damaged components
·
Presss the “Reset” button till
it returns to the default display
interface.
·
Press the “Check” button to
enter the query menu interface;
Press the “Enter” button to
enter the failure query menu
interface; press the “
▼”
and
select the failure record frequency
to be viewed, and press the
“Enter” button again to query
the failure details.
·
Presss the “Reset” button to
exit from or return to the
upper-level menu.
Note: The electrical closing operation is forbidden before troubleshooting.
Summary of Contents for NA1
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