Monitored Data - ABB RES670 Technical Manual

1MRK 511 408-UUS A
16.2.6
16.2.7
Phasor measurement unit RES670 2.2 ANSI
Technical manual

Monitored data

Table 402: SSIMG Monitored data
Name Type
PRESSURE REAL
TEMP REAL
Operation principle
Gas medium supervision SSIMG (63) is used to monitor the gas pressure in the circuit
breaker. Binary inputs of gas density SENPRESALM, SENPRESLO, and gas pressure
signal SENPRES, are taken into account to initiate the alarm PRESALM and the
lockout PRESLO. When SENPRES is less than PresAlmLimit or binary signal from
CB SENPRESALM is high, the gas pressure alarm PRESALM will be initiated.
Similarly, if pressure input SENPRES is less than PresLOLimit or binary signal from
CB SENPRESLO is high, PRESLO will be initiated.
There may be sudden change in pressure of the gas for a very small time, for which the
function need not to initiate any alarm. To avoid the intermittent alarm, two time delays
tPressureAlarm or tPressureLO have been included. If the pressure goes below the
settings for more than these time delays, the corresponding alarm PRESALM or
lockout PRESLO will be initiated. The SETPLO binary input is used for setting the gas
pressure lockout PRESLO. The PRESLO output retains the last value until it is reset by
using the binary input RESETLO. The binary input BLKALM can be used to block the
alarms, and the BLOCK input can block both alarm and the lockout indications.
Temperature of the medium is available from the input signal of temperature. The
signal is monitored to detect high temperature.
When temperature input SENTEMP is above TempAlarmLimit, temperature alarm
TEMPALM will be initiated. Similarly, if temperature input SENTEMP is above
TempLOLimit, temperature lockout TEMPLO will be initiated.
There may be sudden change in temperature of the medium for a very small time, for
which the function need not to initiate any alarm. To avoid the intermittent alarm, two
time delays tTempAlarm or tTempLockOut have been included. If the temperature goes
above the settings for more than these time delays, the corresponding alarm
TEMPALM or lockout TEMPLO will be initiated. The SETTLO binary input is used
for setting the temperature lockout TEMPLO. The TEMPLO output retains the last
value until it is reset by using the binary input RESETLO. The binary input BLKALM
can be used to block the alarms, and the BLOCK input can block both alarm and the
lockout indications.
Values (Range) Unit
- -
- deg
Section 16
Monitoring
PID-6950-MONITOREDDATA v5
Description
Pressure service value
Temperature of the insulation
medium
GUID-359458EA-FFAA-4A44-A8E8-9469CA069C80 v7
527