GE T60 Instruction Manual page 472

GROUPED ELEMENTS
There are three phase overvoltage elements available. A phase overvoltage element is used as an instantaneous element
with no intentional time delay or as a definite time element. The input voltage is the phase-to-phase voltage, either
measured directly from delta-connected VTs or as calculated from phase-to-ground (wye) connected VTs. The figure
shows specific voltages to be used for each phase.
5
If the source VT is wye-connected, then the phase overvoltage pickup condition is V >
V .
CA
5.7.12.4 Neutral overvoltage (ANSI 59N, IEC PTOV)
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  VOLTAGE ELEMENTS  NEUTRAL OV1(3)
 NEUTRAL OV1

5-290
PHASE OV1

EVENTS: Disabled
Figure 5-165: Phase overvoltage logic
NEUTRAL OV1

FUNCTION: Disabled
NEUTRAL OV1 SIGNAL

SOURCE: SRC 1
NEUTRAL OV1 PICKUP:

0.300 pu
NEUTRAL OV1 CURVE:

Definite Time
NEUTRAL OV1 PICKUP:

DELAY: 1.00 s
NEUTRAL OV1 RESET:

DELAY: 1.00 s
NEUTRAL OV1 BLOCK:

Off
NEUTRAL OV1 TARGET:

Self-reset
NEUTRAL OV1 EVENTS:

Disabled
Range: Disabled, Enabled
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6
Range: 0.004 to 3.000 pu in steps of 0.001
Range: Definite Time, FlexCurve A, FlexCurve B,
FlexCurve C
Range: 0.00 to 600.00 s in steps of 0.01
Range: 0.00 to 600.00 s in steps of 0.01
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
T60 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
x Pickup for V , V , and
AB BC