GE D30 User Manual

CHAPTER 5: SETTINGS GROUPED ELEMENTS
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 5-255
5
5.7.12.3 Phase overvoltage (ANSI 59P, IEC PTOV)
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  VOLTAGE ELEMENTS  PHASE OVERVOLTAGE1(3)
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.
Figure 5-143: Phase overvoltage logic
5.7.12.4 Neutral overvoltage (ANSI 59N, IEC PTOV)
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  VOLTAGE ELEMENTS  NEUTRAL OV1(3)
 PHASE
 OVERVOLTAGE1

PHASE OV1
FUNCTION: Disabled
Range: Disabled, Enabled

PHASE OV1 SIGNAL
SOURCE: SRC 1
Range: SRC 1, SRC 2

PHASE OV1
PICKUP: 1.000 pu
Range: 0.004 to 3.000 pu in steps of 0.001

PHASE OV1 PICKUP
DELAY: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01

PHASE OV1 RESET
DELAY: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01

PHASE OV1 BLOCK:
Off
Range: FlexLogic Operand

PHASE OV1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled

PHASE OV1
EVENTS: Disabled
Range: Disabled, Enabled
If the source VT is wye-connected, then the phase overvoltage pickup condition is V > x Pickup for V
AB
, V
BC
, and
V
CA
.
 NEUTRAL OV1


NEUTRAL OV1
FUNCTION: Disabled
Range: Disabled, Enabled

GE D30 Specifications

General

Brand	GE
Model	D30
Category	Relays
Language	English