Ground Current - GE T35 Instruction Manual

GROUPED ELEMENTS
The phase instantaneous overcurrent element can be used as an instantaneous element with no intentional delay or as a
definite time element. The input current is the fundamental phasor magnitude. For timing curves, see the publication
Instantaneous Overcurrent (IOC) Element Response to Saturated Waveforms in UR Series Relays (GET-8400A).
— This setting enables and disables the phase instantaneous overcurrent protection element.
FUNCTION
— Selects the signal source for the phase instantaneous overcurrent protection element.
SOURCE
— Specifies the phase instantaneous overcurrent pickup level in per-unit values.
PICKUP
—Delays the assertion of the
DELAY
and relays.
— Specifies a delay for the reset of the phase instantaneous overcurrent element between the operate output
RESET DELAY
state and the return to logic 0 after the input passes outside the defined pickup range. This setting is used to ensure that
the relay output contacts are closed long enough to ensure reception by downstream equipment.
— Assertion of the operand assigned to this setting block's phase A of the phase instantaneous overcurrent
BLOCK A
5
element.
— Enables and disables the logging of phase instantaneous overcurrent events in the sequence of events recorder.
EVENTS

5.7.5 Ground current

5.7.5.1 Menu
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  GROUND CURRENT
 GROUND CURRENT

5-216
PHASE IOC1 BLOCK A:

Off

PHASE IOC1 BLOCK C:

Off
PHASE IOC1

TARGET: Self-reset
PHASE IOC1

EVENTS: Disabled
operands. It is used to achieve timing coordination with other elements
PHASE IOC OP
Figure 5-110: Phase instantaneous overcurrent 1 logic
 GROUND TOC1



Range: FlexLogic operand
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
See below
T35 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS