Hitachi Relion 670 Series Applications Manual page 327

1MRK506375-UEN Rev. N
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15.3.2 Identification
Function description
Insulation liquid monitoring function
15.3.3 Application
Liquid medium supervision (SSIML) is used for monitoring the oil insulated device condition. For
example, transformers, shunt reactors, and so on. When the level becomes too low compared to the
required value, the operation is blocked to minimize the risk of internal failures. Binary information
based on the oil level in the oil insulated devices are used as input signals to the function. In addition,
the function generates alarms based on the received information.
15.3.4 Setting guidelines
The parameters for Liquid medium supervision SSIML can be set via local HMI or Protection and
Control Manager PCM600.
Operation: To disable/enable the operation of liquid medium supervision i.e. Off/On.
LevelAlmLimit: To set the limit for a level alarm condition in the oil insulated device.
LevelLOLimit: To set the limit for a level lockout condition in the oil insulated device.
TempAlarmLimit: To set the limit for a temperature alarm condition in the oil insulated device.
TempLOLimit: To set the limit for a temperature lockout condition in the oil insulated device.
tLevelAlarm: To set the time delay for a level alarm indication, given in s.
tLevelLockOut: To set the time delay for a level lockout indication, given in s.
tTempAlarm: To set the time delay for a temperature alarm indication, given in s.
tTempLockOut: To set the time delay for a temperature lockout indication, given in s.
tResetLevelAlm: For the level alarm indication to reset after a set time delay in s.
tResetLevelLO: For the level lockout indication to reset after a set time delay in s.
tResetTempLO: For the temperature lockout indication to reset after a set time delay in s.
tResetTempAlm: For the temperature alarm indication to reset after a set time delay in s.
Railway application RER670
Application manual
Product History
revision
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 -
2.2.6 -
IEC 61850
identification
SSIML
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GUID-4CE96EF6-42C6-4F2E-A190-D288ABF766F6 v4
IEC 60617 ANSI/IEEE C37.2
identification device number
- 71
GUID-140AA10C-4E93-4C23-AD57-895FADB0DB29 v8
GUID-0C8E498B-2A65-44ED-91D6-53EC72F49222 v5
Section 15
Monitoring
321