ABB Relion 650 Series Commissioning Manual page 84

Section 5
Testing functionality
76
Prepare the IED for verification of settings as outlined in
verify settings".
Values of the logical signals are available on the local HMI under: Main menu/
Tests/Function status/<Function group>/<Function>/<1:Function>. The Signal
monitoring tool in PCM600 shows the same signals that are available on the LHMI.
The purpose of verification before commissioning is to check that entered
selections, setting parameters and configuration render the intended result. The
function is flexible with many options and facilities. At commissioning only the
selections and settings intended for use are verified. If one chooses to reduce some
time settings in order to speed up verification, be careful to set the parameters at
intended operational values at the end of the verification procedure. One such
parameter is the Reclaim time and could result in a long delay of reclosing shots,
for example, shot 2 and later ones.
The verification test is performed together with protection and trip functions.
Figure 14 illustrates a suggested testing arrangement, where the circuit-breaker
(CB) is simulated by an external bi-stable relay (BR), for example a relay type
RXMVB2 or RXMD or Breaker Simulator of ABB. The following manual
switches are used:
• Switch or push-button to close (SC)
• Switch or push-button to trip (ST)
• Switch for CB ready condition (SRY)
If no bi-stable relay or breaker simulator is available, replace it with two self-reset
auxiliary relays and use a self-holding connection.
Use a secondary injection IED test set to operate the protection function. The test
set shall be switched off when a trip signal is given or when the BR comes to open
position to simulate real conditions.
The CB simulation can be made more elaborate, including simulation of the
operating gear condition, CBREADY of either the type ready for a Close-Open
(CO) cycle, or the type ready for an Open-Close -Open (OCO) cycle.
The CB condition CBREADY of a type, CO, shall be high (true) until a closing
operation is performed. It then goes low (false) for a recharging time of about 5 -
10 s. After that it is high again.
A CB condition CBREADY of a type, OCO shall be high (true) before and during
tripping (Start reclosing). During tripping it goes low for a recharging time, for
example, 10 s. 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:
1MRK 511 209-UEN -
4.1 "Preparing the IED to
REC650
Commissioning Manual