LS Industrial Systems Metasol Series, Технический каталог

Страница: 135 / 156

134
Technical catalog for Susol & Metasol ACB
Technical catalog for Susol & Metasol ACB
J
4. Defects and Troubleshooting Guideline
Troubleshooting Guideline
The breaker is opened but fault Trip
Reset button does mot come out.
1. Voltage does not exist or UVT is damaged.
1. In state of short-circuit
2. Excess current is too high at closing operation.
1. Voltage supply from the trip device is too low. V 0.7Vn
2. Defect on UVT circuit.
1. Damage on the mechanism
2. Deposition of main circuit.
1. Closing operation at state of short-circuit.
2. Fault Trip Reset button does not reset.
3. Unstable draw-in/out state of the product.
4. Anti-pumping function
5. Closing spring of breaker is not charged.
5. Check power supply of the charging motor.
Check if manual charging works.
Contact AS center or replace charging motor if necessary.
6. Remove power supply of the closing coil. Apply power
again after checking the breaker’s closing availability.
Contact AS center if manual charging is unavailable.
8. Apply voltage(V 0.85Vn) to the auxiliary switch and
try closing operation using the closing coil.
1. Check voltage supply of the closing coil.(0.85~1.1Vn)
7. Remove power supply of the trip coil.
3. Try reset operation and if there is a problem or defect.
Contact local AS center and replace charging motor.
1. Remove crank handle.
2. Draw out to the Disconnected position completely.
3. Remove padlock or interlock.
9. Check if the closing error state is normal.
10.Release interlock.
2. Replace closing coil.
1. Check voltage supply.
2. Check the circuit of charging motor.
1. Insert while pressing Open button
2. Remove padlock or interlock.
3. Rush product into cradle securely.
1. Check voltage. Replace damaged UVT.
2. Check voltage supply part.
1. Remove cause : Check condition of breaker before re-closing.
2. Revise network or change setting of trip device.
1. Check voltage supply.(0.7~1.1Vn)
2. Replace UVT.
1. Contact AS center
2. Contact AS center
1. Remove cause : Check condition or breaker.
2. Reset Fault Trip Reset button
3. Check product’s draw-in/out stage.
4. Re-operate after removing power of the closing coil.
6. Power supply problem of the closing coil.
8. Insufficient power supply of the UVT or defect.
9. Locked state of the breaker under open position
10.Incase breaker is interlocked.
1. Inappropriate voltage supply of the closing coil.
2. Defect of the closing coil,s open circuit.
1. No opening of the crank insertion by pressing Open button
2. Under Padlock or interlock
3. Not putting the product into the cradle securely.
1. Crank handle is inserted.
2. Breaker is not in Disconnected position
3. Under Padlock or interlock
1. The cradle and main frame of the breaker do not fit
2. Inappropriate position of the cluster.
3. Safety shutter is under interlock.
1. Check if cradle fits with main frame.
2. Move cluster to the right position.
3. Remove interlock.
Wrong voltage supply to spring charging motor.
7. Power supply problem of the trip coil.
2. Voltage disturbance occurred to the trip device
OPEN operation is doe manually but
not from remote.
OPEN operation does not work
manually.
Closes manually but does not close
from remote.
Dose not charge electrically.
Crank handle for draw-in/out does not
get inserted.
Breaker does not get drawn out.
Breaker is not drawn in completely.
(It is not in the connected position)
Breaker does not close neither
manually nor remotely.
The breaker is opened simultaneously
with the closing operation and the fault
trip Reset button comes out.
Types of Defect Cause Countermeasure