GE b30 User Manual

5-166 B30 Bus Differential System GE Multilin
5.6 GROUPED ELEMENTS 5 SETTINGS
5
Figure 5–65: INVERSE TIME UNDERVOLTAGE CURVES
At 0% of pickup, the operating time equals the UNDERVOLTAGE DELAY setting.
b) PHASE UNDERVOLTAGE (ANSI 27P, IEC PTUV)
PATH: SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  VOLTAGE ELEMENTS  PHASE UNDERVOLTAGE1(3)
Two undervoltage elements facilitate applications including undervoltage supervision of the main bus differential protection
to prevent maloperation in the event of CT trouble.
 PHASE
 UNDERVOLTAGE1
PHASE UV1
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
PHASE UV1 SIGNAL
SOURCE: SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6
MESSAGE
PHASE UV1 MODE:
Phase to Ground
Range: Phase to Ground, Phase to Phase
MESSAGE
PHASE UV1
PICKUP: 1.000 pu
Range: 0.000 to 3.000 pu in steps of 0.001
MESSAGE
PHASE UV1
CURVE: Definite Time
Range: Definite Time, Inverse Time
MESSAGE
PHASE UV1
DELAY: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PHASE UV1 MINIMUM
VOLTAGE: 0.100 pu
Range: 0.000 to 3.000 pu in steps of 0.001
MESSAGE
PHASE UV1 BLOCK:
Off
Range: FlexLogic operand
MESSAGE
PHASE UV1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled
MESSAGE
PHASE UV1
EVENTS: Disabled
Range: Disabled, Enabled
842788A1.CDR
% of voltage pickup
Time (seconds)
NOTE

GE b30 Specifications

General

Model	b30
Manufacturer	GE
Coil Voltage	N/A (Solid State Relay)
Coil Power	N/A (Solid State Relay)
Mechanical Life	N/A (Solid State Relay)
Electrical Life	N/A (Solid State Relay)