Completing The Test; Monitoring; Gas Medium Supervision Ssimg; Testing The Gas Medium Supervision For Pressure Alarm And Pressure Lockout Conditions - ABB REQ650 Commissioning Manual

1MRK 505 385-UEN A
9.7.1.5
9.8
9.8.1
9.8.1.1
Breaker protection REQ650 2.2 IEC
Commissioning manual
Testing functionality by secondary injection

Completing the test

Continue to test another function or end the test by changing the TESTMODE
setting to Off. Restore connections and settings to their original values, if they were
changed for testing purposes.

Monitoring

Gas medium supervision SSIMG

Prepare the IED for verification of settings as outlined in Section
IED to verify settings" in this chapter.
Values of logical signals for SSIMG protection are available on the local HMI
under Main menu/Tests/Function status/Monitoring/InsulationGas(63)/
SSIMG(63):x, where x = 1, 2,....21.
The Signal Monitoring in PCM600 shows the same signals that are available on the
local HMI.
Check that the input logical signal BLOCK is logical zero and that on the local
HMI, the logical signals PRESALM, PRESLO, TEMPALM, TEMPLO, ALARM and
LOCKOUT are logical zero.
Testing the gas medium supervision for pressure alarm and pressure
lockout conditions
1. Connect binary inputs to consider gas pressure and gas density to initiate the
alarms.
2. Consider the analogue pressure input SENPRES and set SENPRES to a value
lower than PresAlmLimit or activate binary input signal SENPRESALM, check
that outputs PRESALM and ALARM are activated after a set time delay of
tPressureAlarm.
3. Gas pressure lockout input SETPLO can be used to set PRESLO.
4. Also, reduce further the pressure level input below PresLOLimit or activate
the binary input signal SENPRESLO, check that PRESLO signal appears after
a set time delay of tPressureLO.
5. Activate BLOCK binary input and check that the outputs PRESALM, PRESLO,
ALARM and LOCKOUT disappear.
6. Reset the BLOCK binary input.
7. Make sure that pressure lockout condition exists and then activate the reset
lock out input RESETLO and check that the outputs PRESLO and LOCKOUT
reset.
Section 9
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