GE B30 Instruction Manual page 269

5 SETTINGS
The setting specifies the operating threshold for the effective operating signal of the element. If set
FLEXELEMENT 1 PICKUP
to "Over", the element picks up when the operating signal exceeds the
element picks up when the operating signal falls below the
The
FLEXELEMENT 1 HYSTERESIS
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
entered in per-unit values using the following definitions of the base units:
Table 5–17: FLEXELEMENT BASE UNITS
BUS DIFFERENTIAL
RESTRAINING CURRENT
(Bus Diff Mag)
BUS DIFFERENTIAL
RESTRAINING CURRENT
(Bus Rest Mag)
DCmA
DELTA TIME
FREQUENCY
PHASE ANGLE
GE Multilin
FLEXELEMENT
DIRECTION = Over;
FLEXELEMENT INPUT
MODE = Signed;
FLEXELEMENT
DIRECTION = Over;
FLEXELEMENT INPUT
MODE = Absolute;
FLEXELEMENT
DIRECTION = Under;
FLEXELEMENT INPUT
MODE = Signed;
FLEXELEMENT
DIRECTION = Under;
FLEXELEMENT INPUT
MODE = Absolute;
Figure 5–49: FLEXELEMENT INPUT MODE SETTING
FLEXELEMENT 1 PICKUP
setting controls the element dropout. It should be noticed that both the operating signal
I = maximum primary RMS value of the +IN and –IN inputs
BASE
(CT primary for source currents, and bus reference primary current for bus differential currents)
I = maximum primary RMS value of the +IN and – IN inputs
BASE
(CT primary for source currents, and bus reference primary current for bus differential currents)
BASE = maximum value of the
under the +IN and –IN inputs.
BASE = 1 µs
f = 1 Hz
BASE
ϕ
= 360 degrees (see the UR angle referencing convention)
BASE
B30 Bus Differential System
FLEXELEMENT 1 PKP
FlexElement 1 OpSig
FLEXELEMENT 1 PKP
FlexElement 1 OpSig
FLEXELEMENT 1 PKP
FlexElement 1 OpSig
FLEXELEMENT 1 PKP
FlexElement 1 OpSig
842706A2.CDR
FLEXELEMENT 1 PICKUP
value.
FLEXELEMENT 1 PICKUP
setting for the two transducers configured
DCMA INPUT MAX
5.5 FLEXLOGIC
value. If set to "Under", the
setting is
5-135
5