GE C70 Instruction Manual page 308

GROUPED ELEMENTS
GROUND TOC1 PICKUP
GROUND TOC1 CURVE
GROUND TOC1 TD MULTIPLIER
Programming this value to zero results in an instantaneous response to all current levels above pickup.
GROUND TOC1 RESET
relays, which set the energy capacity directly to zero when the current falls below the reset threshold. The "Timed" reset
method can be used where the relay must coordinate with electromechanical relays.
GROUND TOC1 BLOCK
element.
GROUND TOC1 EVENTS
of events recorder.
These elements measure the current that is connected to the ground channel of a CT/VT module. The
conversion range of a standard channel is from 0.02 to 46 times the CT rating.
NOTE
SETTING
GROUND TOC1
FUNCTION:
Enabled = 1
5
SETTING
GROUND TOC1
SOURCE:
IG
SETTING
GROUND TOC1
BLOCK:
Off = 0
5.7.5.3 Ground instantaneous overcurrent (ANSI 50G, IEC PIOC)
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  GROUND CURRENT  GROUND IOC1(12)
 GROUND IOC1

5-184
— This setting specifies the ground time overcurrent pickup level in per-unit values.
— This setting selects the inverse time overcurrent curve style.
— This setting specifies a multiple of the base curve shape specified by the
— The "Instantaneous" reset method is intended for applications with other relays, such as most static
— Assertion of the operand assigned to this setting blocks operation of the ground time overcurrent
— This setting enables and disables the logging of ground time overcurrent events in the sequence
Figure 5-88: Ground TOC1 logic
AND
GROUND IOC1

FUNCTION: Disabled
GROUND IOC1 SIGNAL

SOURCE: SRC 1
GROUND IOC1

PICKUP: 1.000 pu
GROUND IOC1 PICKUP

DELAY: 0.00 s
GROUND IOC1 RESET

DELAY: 0.00 s
GROUND IOC1 BLOCK:

Off
GROUND IOC1

TARGET: Self-reset
GROUND IOC1

EVENTS: Disabled
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
SETTINGS
GROUND TOC1
INPUT:
GROUND TOC1
PICKUP:
GROUND TOC1
CURVE:
GROUND TOC1
TD MULTIPLIER:
GROUND TOC 1
RESET:
RUN
IG PICKUP
t
I
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4, SRC 5, SRC 6
Range: 0.000 to 30.000 pu in steps of 0.001
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
CHAPTER 5: SETTINGS
setting.
CURVE
FLEXLOGIC OPERANDS
GROUND TOC1 PKP
GROUND TOC1 DPO
GROUND TOC1 OP
827036A4.VSD