GE C30 User Manual

GE Multilin C30 Controller System 5-111
5 SETTINGS 5.5 FLEXLOGIC
5
The FLEXELEMENT 1 PICKUP setting specifies the operating threshold for the effective operating signal of the element. If set
to “Over”, the element picks up when the operating signal exceeds the FLEXELEMENT 1 PICKUP value. If set to “Under”, the
element picks up when the operating signal falls below the FLEXELEMENT 1 PICKUP value.
The FLEXELEMENT 1 HYSTERESIS setting controls the element dropout. It should be noticed that both the operating signal
and the pickup threshold can be negative facilitating applications such as reverse power alarm protection. The FlexElement
can be programmed to work with all analog actual values measured by the relay. The
FLEXELEMENT 1 PICKUP setting is
entered in per-unit values using the following definitions of the base units:
The
FLEXELEMENT 1 HYSTERESIS setting defines the pickup–dropout relation of the element by specifying the width of the
hysteresis loop as a percentage of the pickup value as shown in the FlexElement direction, pickup, and hysteresis diagram.
The FLEXELEMENT 1 DT UNIT setting specifies the time unit for the setting FLEXELEMENT 1 dt. This setting is applicable only if
FLEXELEMENT 1 COMP MODE is set to “Delta”. The FLEXELEMENT 1 DT setting specifies duration of the time interval for the
rate of change mode of operation. This setting is applicable only if
FLEXELEMENT 1 COMP MODE is set to “Delta”.
This
FLEXELEMENT 1 PKP DELAY setting specifies the pickup delay of the element. The FLEXELEMENT 1 RST DELAY setting
specifies the reset delay of the element.
Table 5–14: FLEXELEMENT BASE UNITS
DCmA BASE = maximum value of the DCMA INPUT MAX setting for the two transducers configured
under the +IN and –IN inputs.
DELTA TIME BASE = 1 µs
FREQUENCY f
BASE
= 1 Hz
PHASE ANGLE ϕ
BASE
= 360 degrees (see the UR angle referencing convention)
POWER FACTOR PF
BASE
= 1.00
RTDs BASE = 100°C
SOURCE CURRENT I
BASE
= maximum nominal primary RMS value of the +IN and –IN inputs
SOURCE POWER P
BASE
= maximum value of V
BASE
× I
BASE
for the +IN and –IN inputs
SOURCE VOLTAGE V
BASE
= maximum nominal primary RMS value of the +IN and –IN inputs

GE C30 Specifications

General

Brand	GE
Model	C30
Category	Controller
Language	English