ABB rec670 - Preparation of the Verification

example, 10s. It may thus be low at the instant of reclosing. After each Open or Close
operation it may need a recharging period before it goes high again.
In the example of CB simulation arrangement, the CBREADY condition is simulated
by a manual switch, SRY.
Information and material for the verification:
• Protection or control unit, IED, configured and with settings entered.
• Configuration diagram for the IED
• Terminal diagram for the IED, or plant circuit diagram including the IED
• Technical reference manual for the IED
• IED test set for secondary injection
• Means to indicate, measure and record operation and times, for example an event
recording facility
• A bi-stable relay (BR) or two auxiliary relays to simulate a CB
• Two push-buttons (SC, ST) to operate the BR and a change-over switch (SRY) to
simulate CBREADY
• Possibly a switch simulation the synchronizing check SESRSYN condition
IED
CLOSE CB
Trip
CB POS
CB READY
BR
SC
ST
SRY
To test
set
+ -
IEC04000202-1-
en.vsd
IEC04000202 V2 EN
Figure 25: Simulating the CB operation by a bi-stable relay/breaker simulator
and manual switches
10.9.2.1 Preparation of the verification
1MRK 511 360-UEN A Section 10
Testing functionality by secondary injection
Bay control REC670 2.1 IEC 151
Commissioning manual