Siemens 6MD85, Руководство пользователя

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[dwzecbc1p2-161013, 2, en_US]
Figure 10-4 Structure of the Function
Test Procedure
The following conditions must be satisfied before the circuit-breaker test can start:
²
If a circuit-breaker auxiliary contact reports the position of the breaker pole to the device via the binary
inputs of the signal
Position
, the test cycle is not initiated unless the circuit breaker is closed.
²
If the circuit-breaker auxiliary contact has not been routed, you must ensure that the circuit breaker is
closed.
²
The circuit breaker must be ready for an open-closed cycle or an open-only cycle (indication
>Ready
).
²
A protection function must not have been picked up in the circuit-breaker protection function group
responsible for the circuit breaker.
[scCBTest3p, 1, en_US]
Figure 10-5 Circuit-Breaker Test Parameters
Figure 10-6 shows the chronological sequence of an open-closed cycle as an example. If you have activated
the
Open only
option, the close command is not executed and the dead time not taken into consideration.
If a circuit-breaker auxiliary contact is connected, the function waits for the indication circuit breaker
Posi-
tion
=
open
after the trip command is generated. When the indication
Position
=
open
is received, the
close command is transmitted during an open-closed cycle after a dead time (parameter
(_:6151:101)
Dead time
). If the feedback from the circuit-breaker positions is not received within the maximum transmis-
sion time (
Dead time
+ 2 ·
Output time
+ 5 s), the circuit-breaker test is aborted and considered to be
failed. The proper functioning of the circuit breaker is monitored via the feedback on the circuit-breaker posi-
tions.
Functional Tests
10.5 Circuit-Breaker Test
1068 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017