5-58 W650 Wind Generator Protection System GEK-113032A
5.4 PROTECTION ELEMENTS 5 SETTINGS
5
The following table shows the management of the element output signals (block and permission) depending on the
Polarization Type setting.
Table 5–55: OUTPUT SIGNALS MANAGEMENT ACCORDING TO THE POLARIZTION TYPE SETTING
The configuration of the signals required for blocking the Ground overcurrent elements from the signals provided by the
Ground directional element is made at Setpoint > Relay Configuration > Protection Elements using inverted operation
signals to block the trip.
For example, to block the ground time delayed elements:
GROUND TOC1 BLOCK = NOT (GROUND DIR1 OP)
GROUND TOC2 BLOCK = NOT (GROUND DIR2 OP)
GROUND TOC3 BLOCK = NOT (GROUND DIR3 OP)
To block the Ground Instantaneous elements:
GROUND IOC1 BLOCK = NOT (GROUND DIR1 OP)
GROUND IOC2 BLOCK = NOT (GROUND DIR2 OP)
GROUND IOC3 BLOCK = NOT (GROUND DIR3 OP)
POLARIZATION SETTING GROUND DIR BLOCK SIGNAL GROUND DIR OP SIGNAL
Vo V
0
< Ajs. POL V THRESHOLD Permission V
0
Ip I
P
< 5 mA Permission I
P
Vo + Ip V
0
< POL V THRESHOLD
I
P
< 5 mA
Permission V
0
Permission I
P
Vo * Ip V
0
< POL V THRESHOLD
I
P
< 5 mA
Permission V
0
Permission I
P
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