GE UR T60 - Page 170

5-32 T60 Transformer Protection System GE Multilin
5.2 PRODUCT SETUP 5 SETTINGS
5
The MMXU deadband settings represent the deadband values used to determine when the update the MMXU “mag” and
“cVal” values from the associated “instmag” and “instcVal” values. The “mag” and “cVal” values are used for the IEC 61850
buffered and unbuffered reports. These settings correspond to the associated “db” data items in the CF functional con-
straint of the MMXU logical node, as per the IEC 61850 standard. According to IEC 61850-7-3, the db value “shall repre-
sent the percentage of difference between the maximum and minimum in units of 0.001%”. Thus, it is important to know the
maximum value for each MMXU measured quantity, since this represents the 100.00% value for the deadband.
The minimum value for all quantities is 0; the maximum values are as follows:
• phase current: 46 × phase CT primary setting
• neutral current: 46 × ground CT primary setting
• voltage: 275 × VT ratio setting
• power (real, reactive, and apparent): 46 × phase CT primary setting × 275 × VT ratio setting
• frequency: 90 Hz
• power factor: 2
The GGIO1 status configuration points are shown below:
PATH: SETTINGS  PRODUCT SETUP  COMMUNICATIONS  IEC 61850 PROTOCOL  GGIO1 STATUS CONFIGURATION
The NUMBER OF STATUS POINTS IN GGIO1 setting specifies the number of “Ind” (single point status indications) that are
instantiated in the GGIO1 logical node. Changes to the NUMBER OF STATUS POINTS IN GGIO1 setting will not take effect until
the T60 is restarted.
The GGIO2 control configuration points are shown below:
PATH: SETTINGS  PRODUCT SETUP  COMMUNICATIONS  IEC 61850 PROTOCOL  GGIO2 CONTROL CONFIGURATION
 GGIO2 CF SPSCO 1(64)
The GGIO2 control configuration settings are used to set the control model for each input. The available choices are “0”
(status only), “1” (direct control), and “2” (SBO with normal security). The GGIO2 control points are used to control the T60
virtual inputs.
 GGIO1 STATUS
 CONFIGURATION
NUMBER OF STATUS
POINTS IN GGIO1: 8
Range: 8 to 128 in steps of 8
MESSAGE
GGIO1 INDICATION 1
Off
Range: FlexLogic™ operand
MESSAGE
GGIO1 INDICATION 2
Off
Range: FlexLogic™ operand
MESSAGE
GGIO1 INDICATION 3
Off
Range: FlexLogic™ operand
↓
MESSAGE
GGIO1 INDICATION 128
Off
Range: FlexLogic™ operand
 GGIO2 CF SPCSO 1

GGIO2 CF SPCSO 1
CTLMODEL: 1
Range: 0, 1, or 2