Gas Medium Supervision Ssimg (63) - ABB RELION RET670 Applications Manual

Section 18
Monitoring
18.2
18.2.1
18.2.2
876
Table 70: General settings parameters for the Measurement function
Setting Short description
Operation Operation Off/On
PowAmpFact Amplitude factor to scale power
calculations
PowAngComp Angle compensation for phase
shift between measured I & V
Mode Selection of measured current
and voltage
k Low pass filter coefficient for
power measurement, V and I
VGenZeroDb Zero point clamping in % of
Vbase
IGenZeroDb Zero point clamping in % of
Ibase
VBase (set in Base setting for voltage level in
Global base) kV
IBase (set in Base setting for current level in
Global base) A

Gas medium supervision SSIMG (63)

Identification
Function description
Insulation gas monitoring function
Application
Gas medium supervision (SSIMG ,63) is used for monitoring the circuit breaker
condition. Proper arc extinction by the compressed gas in the circuit breaker is very
important. When the pressure becomes too low compared to the required value, the
circuit breaker operation shall be blocked to minimize the risk of internal failure.
Binary information based on the gas pressure in the circuit breaker is used as an input
signal to the function. The function generates alarms based on the received
information.
Selected Comment
value
On Function must be
1.000 Typically no scaling is required
0.0 Typically no angle compensation is
required. As well here required
direction of P & Q measurement is
towards protected object (as per IED
internal default direction)
Arone Generator VTs are connected
between phases (V-connected)
0.00 Typically no additional filtering is
required
25% Set minimum voltage level to 25%
3 Set minimum current level to 3%
15,65 Set generator rated phase-to-phase
voltage
3690 Set generator rated current
IEC 61850 IEC 60617
identification identification
SSIMG -
Transformer protection RET670 2.2 ANSI
1MRK 504 163-UUS A
On
GUID-358AD8F8-AE06-4AEA-9969-46E5299D5B4B v3
GUID-AD96C26E-C3E5-4B21-9ED6-12E540954AC3 v4
ANSI/IEEE C37.2
device number
63
GUID-A840E38C-CC42-4995-A569-A6092DDB81B2 v5
Application manual