Siemens SENTRON 3WL10 - Commissioning; General Tests

Test Checks
Protection function
test
1. Make sure that the circuit breaker is in the CLOSED (ON) position and that the main circuits are not
carrying any current.
2. Connect the ETU via the TD410 or TD420 test device with a laptop on which the powerservice
software is installed.
3. Run the protection function test with powerservice and check whether all protection functions are
working correctly.
Trip test
(ETU of the 3-series)
1. Make sure that the circuit breaker is in the CLOSED (ON) position and that the main circuits are not
carrying any current.
2. Connect the test device TD410, TD420, or TD310 to the ETU.
3. Press the test key of the ETU for at least 9 seconds.
4. Check whether the circuit breaker has tripped or the TU reset button has moved forward.
Trip test
(ETUs of the 6-series)
1. Make sure that the circuit breaker is in the CLOSED (ON) position and that the main circuits are not
carrying any current.
2. Connect the ETU via the TD410 or TD420 test device with a laptop on which the powercon󹪝g
software is installed.
3. Perform the trip test with powercon󹪝g
4. Check whether the circuit breaker has tripped or the TU reset button has moved forward.
5.5 Commissioning
You can read how to operate the circuit breaker during each test point in Chapter Operation
(Page183).
5.5.1 General tests
DANGER
Electric shock!
Test the circuit breaker only while the switchboards are de-energized.
Note
General testing of the circuit breaker is necessary in the following cases:
• The circuit breaker is put into operation for the 󹪝rst time.
• The circuit breaker is inactive for a long time and during storage under certain ambient
conditions
The tests contain the procedures that must only ever be performed by electrically skilled persons.
Electrically skilled person (IEV 195-04-01): Person with relevant education and experience to
enable him or her to perceive risks and to avoid hazards which electricity can create.
Connection and commissioning
5.5Commissioning
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
178 Equipment Manual, 10/2023, L1V30499596002-03