Siemens SENTRON 3VA27 - Final Tests

Connection and commissioning
5.5 Commissioning
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01
193
5.5.3
Final tests
After completion of the general and accessory tests, perform the activities in the final
checklist table.
No.
Activity
Description
1
Circuit breaker open
Put the circuit breaker into the OPEN position.
2 Circuit breaker connected On the withdrawable breaker, move the circuit breaker into the CONNECT
position. Stow the racking handle in the recess provided for it.
3 Parameterization Parameterize ETUs of the 3-series directly with the rotary coding switch and
ETUs of the 6-series with the TD310 test device through the power supply.
If parameterization is not performed, the default values of the parameters are
so high that the highest safety is ensured (minimally sensitive protection set-
ting). Only the overload release (LT) on an ETU of the 6-series has a medium
operating value that prevents direct tripping when a circuit breaker is closed, if
it has not been modified by the user.
4
Removing the TD310 test device
Remove the TD310 test device, if connected.
5
Connecting the voltage
Connect the auxiliary voltage.
6
Closing the switchboard
Close the control panel door.
7
Charging the springs
Charge the springs with the manual lever.
8
Undervoltage release
Make sure that voltage is applied to the undervoltage release.
9 Open and close the closing coil
and shunt release
Make sure no voltage is applied to the closing coil and shunt release.
10 Mutual mechanical interlocking of
the circuit breaker
Make sure that the mutual mechanical interlocking of the circuit breaker is not
active, if installed.
11 Interlocks and locking devices Make sure that the interlocking devices of the circuit breaker, if installed, are
not operated or enabled.
12 Status signals Check whether the display on the front of the circuit breaker functions: Circuit
breaker OPEN: The springs are charged and the status indicator shows
"CHARGED".
Note
To perform the insulation test on the switchboard, the voltage circuit of the metering function
must be interrupted. This is done by pulling out the metering module MF Basic / Advanced to
its dedicated disconnect position, which is located next to the ETU.
The general rules for the insulation test procedure for switchboards acc. to IEC 60364-6
must be followed.