Siemens SIPROTEC 4 Manual page 154

Voltage and frequency protection
Hide thumbs Also See for SIPROTEC 4:
Table of Contents

Advertisement

Mounting and Commissioning
3.3 Commissioning
The synchrocheck function must be activated at address 6101 Synchronizing = ON.
A further aid for checking the connections are the messages 170.2090
170.2094
25 α2>α1 and 170.2095 25 α2<α1 in the spontaneous messages.
Circuit breaker is open. The feeder is de-energized. The circuit breakers of both voltage transformer
circuits must be closed.
For the synchrocheck, the program Direct CO is set to YES (address 6110); the other programs
(addresses 6107 to 6109) are set to NO.
Via a binary input (170.0043
must release closing (message 170.0049
again (synchrocheck configured and enabled correctly, see Sections
2.7
Synchrocheck).
Set address 6110 Direct CO to NO.
Then the circuit breaker is closed while the line isolator is open (see
transformers receive the same voltage.
For the synchrocheck, the program 25 Function 1 is set to SYNCHROCHECK (address 161)
Via a binary input (170.0043
must release closing (message 170.0049
If not, first check whether one of the aforesaid messages 170.2090
or 170.2094
The message
6121 Balancing V1/V2 and recalculate the adaptation factor.
The message
match the setting under address CONNECTIONof V2 (see Section
via a transformer, address 6122 ANGLE ADJUSTM. must also be checked; this must adapt the vector
group. If these are correct, there is probably a reverse polarity of the voltage transformer terminals for
V1.
For the synchrocheck, the program SYNC V1>V2< is set to YES (address 6108)
Open the VT mcb of the busbar voltage.
Via a binary input (170.0043
release. If there is, the VT mcb for the busbar voltage is not allocated. Check whether this is the required
state, alternatively check the binary input
Close the VT mcb of the busbar voltage again.
Open the circuit breaker.
For the synchrocheck, the program SYNC V1<V2>is set to YES (address 6107) and SYNC V1>V2< is set
to NO (address 6108).
Via a binary input (170.0043
must release closing (message 170.0049
and the corresponding parameters again thoroughly as described in
Open the VT mcb of the feeder voltage.
Via a binary input (170.0043
given.
Close the VT mcb of the busbar voltage again.
Addresses 6107 to 6110 must be restored as they were changed for the test. If the allocation of the LEDs or
signal relays was changed for the test, this must also be restored.
154
>25 Sync requ. ) a measurement request is entered. The synchrocheck
>25 Sync requ. ) a measurement request is entered. The synchrocheck
25 α2>α1 or 170.2095 25 α2<α1 is available in the spontaneous messages.
25 V2>V1 or 25 V2<V1 indicates that the magnitude adaption is incorrect. Check address
25 α2>α1 or 25 α2<α1 indicates that the phase relation of the busbar voltage does not
>25 Sync requ. ) a measurement request is entered. There is no close
>25 Sync requ. ) a measurement request is entered. The synchrocheck
>25 Sync requ. ) a measurement request is entered. No close release is
25 V2>V1 , 170.2091 25 V2<V1 ,
25 CloseRelease ). If not, check all relevant parameters
2.1.1 Functional Scope
Figure
25 CloseRelease ).
25 V2>V1 or 170.2091 25 V2<V1
2.7
>FAIL: BUS VT (6510).
25 CloseRelease ). Otherwise check all voltage connections
and
3-23). Thus, both voltage
Synchrocheck). When measuring
Section2.7
Synchrocheck.
SIPROTEC 4, 7RW80, Manual
C53000-G1140-C233-4, Edition 07.2018

Advertisement

Table of Contents
loading

This manual is also suitable for:

Siprotec 7rw80

Table of Contents