ABB REB670 Series - Gas medium supervision SSIMG; Identification; Application; Setting guidelines

Table 53: General settings parameters for the Measurement function
Setting Short description Selected
value
Comment
Operation Operation Off/On On Function must be On
PowAmpFact Amplitude factor to scale
power calculations
1.000 Typically no scaling is required
PowAngComp Angle compensation for phase
shift between measured I & U
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)
Mode Selection of measured current
and voltage
Arone Generator VTs are connected between phases
(V-connected)
k Low pass filter coefficient for
power measurement, U and I
0.00 Typically no additional filtering is required
UGenZeroDb Zero point clamping in % of
Ubase
25% Set minimum voltage level to 25%
IGenZeroDb Zero point clamping in % of
Ibase
3 Set minimum current level to 3%
UBase (set in
Global base)
Base setting for voltage level
in kV
15,65 Set generator rated phase-to-phase voltage
IBase (set in
Global base)
Base setting for current level
in A
3690 Set generator rated current
14.2 Gas medium supervision SSIMG
GUID-358AD8F8-AE06-4AEA-9969-46E5299D5B4B v3
14.2.1 Identification
GUID-AD96C26E-C3E5-4B21-9ED6-12E540954AC3 v4
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Insulation gas monitoring function SSIMG - 63
14.2.2 Application
GUID-A840E38C-CC42-4995-A569-A6092DDB81B2 v5
Gas medium supervision (SSIMG) 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.
14.2.3 Setting guidelines
GUID-DF6BEC98-F806-41CE-8C29-BEE9C88FC1FD v3
The parameters for Gas medium supervision SSIMG can be set via local HMI or Protection and
Control Manager PCM600.
Operation : This is used to disable/enable the operation of gas medium supervision i.e. Off/On.
PresAlmLimit : This is used to set the limit for a pressure alarm condition in the circuit breaker.
PresLOLimit : This is used to set the limit for a pressure lockout condition in the circuit breaker.
1MRK 505 370-UEN D Section 14
Monitoring
Busbar protection REB670 363
Application manual