GE C70 User Manual

5-198 C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
GROUPED ELEMENTS CHAPTER 5: SETTINGS
5
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
).
FUNCTION — This setting enables and disables the phase instantaneous overcurrent protection element.
SOURCE — Selects the signal source for the phase instantaneous overcurrent protection element.
PICKUP — Specifies the phase instantaneous overcurrent pickup level in per-unit values.
DELAY —Delays the assertion of the PHASE IOC OP operands. It is used to achieve timing coordination with other elements
and relays.
RESET DELAY — Specifies a delay for the reset of the phase instantaneous overcurrent element between the operate output
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.
BLOCK A — Assertion of the operand assigned to this setting block’s phase A of the phase instantaneous overcurrent
element.
EVENTS — Enables and disables the logging of phase instantaneous overcurrent events in the sequence of events recorder.
Figure 5-99: Phase instantaneous overcurrent 1 logic
5.7.3.5 Phase directional overcurrent (ANSI 67P, IEC PDOC/PTOC)
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  PHASE CURRENT  PHASE DIRECTIONAL 1(2)
 PHASE
 DIRECTIONAL 1

PHASE DIR 1
FUNCTION: Disabled
Range: Disabled, Enabled

PHASE DIR 1 SIGNAL
SOURCE: SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6

PHASE DIR 1 BLOCK:
Off
Range: FlexLogic operand

PHASE DIR 1
ECA: 30°
Range: 0 to 359° in steps of 1

PHASE DIR POL V1
THRESHOLD: 0.700 pu
Range: 0.004 to 3.000 pu in steps of 0.001

PHASE DIR 1 BLOCK
WHEN V MEM EXP: No
Range: No, Yes

PHASE DIR 1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled

GE C70 Specifications

General

Brand	GE
Model	C70
Category	Protection Device
Language	English