Table of Contents
Advertisement
Section 10
Testing functionality by secondary injection
10.10.1.3
Testing the gas medium supervision for temperature alarm and
temperature lockout conditions
1.
Activate the binary input SENTEMPQ.
2.
Consider the analogue temperature input SENTEMP and set SENTEMP to a value higher than
TempAlarmLimit , check that outputs TEMPALM and ALARM are activated after a set time
delay of tTempAlarm .
3.
Temperature lockout input SETTLO can be used to set TEMPLO signal.
4.
Ensure that binary input SENTEMPQ is activated and increase further the temperature input
above TempLOLimit , check that the outputs TEMPLO and LOCKOUT appear after a set time
delay of tTempLockOut .
5.
Activate BLOCK binary input and check that the outputs TEMPALM, TEMPLO, ALARM and
LOCKOUT disappear.
6.
Reset the BLOCK binary input.
7.
Ensure that temperature lockout condition exists and then activate the reset lockout input
RESETLO and check that the outputs TEMPLO and LOCKOUT reset.
10.10.1.4
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.
10.10.2
Liquid medium supervision SSIML
Prepare the IED for verification of settings as outlined in section
settings"" in this chapter.
Values of logical signals for SSIML protection are available on the local HMI under Main menu /
Test /Function status /Monitoring /InsulationLiquid /SSIML:x , where x = 1, 2,....4.
Check that the input logical signal BLOCK is logical zero and that on the local HMI, the logical signals
LVLALM, LVLLO, TEMPALM, TEMPLO, ALARM and LOCKOUT are logical zero.
10.10.2.1
Function revision history
Document
revision
A
B
C
D
E
F
G
H
132
Product
History
revision
2.2.1
-
2.2.1
-
2.2.2
-
2.2.3
-
2.2.3
-
2.2.4
-
2.2.4
Binary quality inputs SENLVLQ and SENTEMPQ have been added for pressure and
temperature sensor signals in order to control alarm and lockout signals. Whenever there
is no sensor, the quality of the binary input will be low. If sensor quality is low, then
lockout and alarm signals will get reset.
2.2.5
-
© 2017 - 2022 Hitachi Energy. All rights reserved
1MRK 505 372-UEN Rev. K
GUID-EC145626-90B0-45A2-AD58-CB8BF203FE16 v3
GUID-DD08C598-A35C-4300-9555-A0877F7DC511 v3
GUID-6426FDDA-B949-4FE7-BF42-B52014A9344B v5
""Preparing the IED to verify
GUID-751C8C78-891D-423B-825A-0774D0B6C658 v2
Busbar protection REB670
Commissioning manual
Advertisement
Table of Contents
