GE MiCOM P40 Technical Manual page 871

P446SV
MENU TEXT
Setting that determines whether any phase or all three phases has to satisfy the undervoltage criteria before a decision is made.
Note: If any stage is disabled, the associated text in the setting menu cell setting will remain visible but will not affect the operation of the
stage that is enabled.
V<1 Function
Tripping characteristic for the first stage undervoltage function.
The IDMT characteristic available on the first stage is defined by the following formula:
t = K / (1 - M)
Where:
K = Time multiplier setting
t = Operating time in seconds
M = Measured voltage/relay setting voltage (V< Voltage Set)
V<1 Voltage Set
Sets the pick-up setting for first stage undervoltage element.
V<1 Time Delay
Setting for the operating time-delay for the first stage definite time undervoltage element.
V<1 TMS
Setting for the time multiplier setting to adjust the operating time of the IDMT characteristic.
V<1 Poledead Inh
If the cell is enabled, the relevant stage will become inhibited by the pole dead logic. This logic produces an output when it detects either an
open circuit breaker via auxiliary contacts feeding the relay opto inputs or it detects a combination of both undercurrent and undervoltage
on any one phase. It allows the undervoltage protection to reset when the circuit breaker opens to cater for line or bus side VT applications.
V<2 Status
Setting to enable or disable the second stage undervoltage element.
V<2 Voltage Set
This setting determines the pick-up setting for second stage undervoltage element.
V<2 Time Delay
Setting for the operating time-delay for the second stage definite time undervoltage element.
V<2 Poledead Inh
Similar function to V<1 Poledead Inhibit.
OVERVOLTAGE
V> Measur't Mode
Sets the combination of measured input voltage that will be used for the overvoltage elements.
Note: If any stage is disabled, the associated text in the setting menu cell setting will remain visible but will not affect the operation of the
stage that is enabled.
V> Operate Mode
P446SV-TM-EN-1
COL ROW DEFAULT SETTING
42 04 DT
42 05 80
42 06 10
42 07 1
42 08 Enabled
42 09 Disabled
42 0A 60
42 0B 5
42 0C Enabled
42 0D
42 0E V>1 & V>2 Ph-Ph
42 0F V>1 & V>2 Any Ph
DESCRIPTION
V<1AnyPh V<2 3Ph
V<1 3Ph V<2AnyPh
[Indexed String]
Disabled
DT
IDMT
[Indexed String]
From 10*V1 to 120*V1 in steps of 1*V1
[Courier Number (voltage)]
From 0 to 100 in steps of 0.01
[Courier Number (time-seconds)]
From 0.5 to 100 in steps of 0.5
[Courier Number (decimal)]
Disabled
Enabled
[Indexed String]
Disabled
Enabled
[Indexed String]
From 10*V1 to 120*V1 in steps of 1*V1
[Courier Number (voltage)]
From 0 to 100 in steps of 0.01
[Courier Number (time-seconds)]
Disabled
Enabled
[Indexed String]
V>1 & V>2 Ph-Ph
V>1 & V>2 Ph-N
V>1Ph-Ph V>2Ph-N
V>1Ph-N V>2Ph-Ph
[Indexed String]
V>1 & V>2 Any Ph
V>1 & V>2 3 Phase
V>1AnyPh V>2 3Ph
V>1 3Ph V>2AnyPh
[Indexed String]
Appendix B -Settings and Signals
AVAILABLE OPTIONS
B125