GE F650 Instruction Manual page 219

5.4 PROTECTION ELEMENTS
Table 5–64: 27P ELEMENT SETTINGS
SETPOINT > PROTECTION ELEMENTS > VOLTAGE ELEMENTS > PHASE UV >
PHASE UV 1> PHASE UV 2 > PHASE UV 3
SETTING DESCRIPTION
Function permission
Input mode
Pickup Level
Curve shape
Time Dial
Minimum Voltage Threshold
Operation logic
Supervision by breaker status
Snapshot Event generation
Phase undervoltage element settings are:
Function Permission (Function): This setting indicates whether the phase undervoltage element is enabled or disabled.
Input mode (Mode):
Pickup Level:
Curve Shape (Curve):
5
Time Dial (Delay):
Minimum voltage Threshold (Minimum Voltage):Voltage setting under which the undervoltage element is inhibited, in
Operation logic (Logic):
Supervision by breaker status (Supervised by 52):This setting allows inhibiting the undervoltage element if the breaker
Snapshot Events:
5.4.8.2 PHASE OVERVOLTAGE ELEMENT (59P)
The Phase overvoltage element may be used as an instantaneous element with no intentional time delay or as a Definite
Time element. The input voltage is the phase-to-phase voltage, either measured directly from Delta-connected VTs or as
calculated from phase-to-ground (wye) connected VTs. The time delay can be set from instantaneous to 900 seconds. The
element reset can be delayed up to 900 seconds.
As in the case of the undervoltage element, this element generates independent pickup and trip signals for each phase.
The general signal is selectable by setting to be an OR or an AND of the phase signals.
5-72
NAME DEFAULT
VALUE
Function DISABLED
Mode PHASE-PHASE
Pickup Level 10
Curve DEFINITE TIME
Delay 10.00
Minimum Voltage 0
Logic ANY PHASE
Supervised by 52 DISABLED
Snapshot Events ENABLED
This setting allows selecting operation for phase-to-phase or phase-to-ground voltage,
depending on the selected setting.
This is the voltage threshold below which the undervoltage element will operate.
Undervoltage elements can be set to operate with definite time or with an inverse time
curve. Elements set as definite time operate when the voltage value remains under the
pickup setting during the set time. If inverse time is selected, the element will operate
according to the previously described inverse time curve.
Setting of the Protection element operation time.
order not to operate in dead line cases.
This setting allows the element operation logic selection:
ANY PHASE The element will operate under an undervoltage condition in any of the
three phases.
TWO PHASES The element will operate under an undervoltage condition in at least two
phases.
ALL PHASES The element will operate under an undervoltage condition in the three
phases.
is open breaker. In case this setting is enabled, the undervoltage element will be
supervised by the breaker status. Otherwise, the element will operate independently of
the breaker status.
The snapshot event setting enables or disables the snapshot event generation for this
element.
F650 Digital Bay Controller
STEP RANGE
N/A [DISABLED – ENABLED]
N/A [PHASE-PHASE, PHASE-GROUND]
1 V [3 : 300]
N/A [DEFINITE TIME – INVERSE TIME]
0.01 s [0.00 : 900.00]
1 V [0 : 300]
N/A [ANY PHASE – TWO PHASES – ALL PHASES]
N/A [DISABLED – ENABLED]
N/A [DISABLED – ENABLED]
5 SETTINGS
GEK-106310AB