GE MiCOM P40 - Page 875

P446SV
Appendix B -Settings and Signals
P446SV-TM-EN-1
B129
MENU TEXT COL ROW DEFAULT SETTING AVAILABLE OPTIONS
DESCRIPTION
Setting to enable or disable the third stage df/dt element.
df/dt>3 Setting 44 13 2
From 0.1 to 10 in steps of 0.1
[Courier Number (Hz/sec)]
Pick-up setting for the third stage df/dt element.
df/dt>3 Dir'n 44 14 Negative
Negative
Positive
Both
[Indexed String]
This setting determines whether the element will react to rising or falling frequency conditions respectively, with an incorrect setting being
indicated if the threshold is set to zero.
df/dt>3 Time 44 15 2
From 0 to 100 in steps of 0.01
[Courier Number (time-seconds)]
Minimum operating time-delay setting for the third stage df/dt element.
df/dt>4 Status 44 19 Enabled
Disabled
Enabled
[Indexed String]
Setting to enable or disable the fourth stage df/dt element.
df/dt>4 Setting 44 1A 2
From 0.1 to 10 in steps of 0.1
[Courier Number (Hz/sec)]
Pick-up setting for the fourth stage df/dt element.
df/dt>4 Dir'n 44 1B Negative
Negative
Positive
Both
[Indexed String]
This setting determines whether the element will react to rising or falling frequency conditions respectively, with an incorrect setting being
indicated if the threshold is set to zero.
df/dt>4 Time 44 1C 3
From 0 to 100 in steps of 0.01
[Courier Number (time-seconds)]
Minimum operating time-delay setting for the fourth stage df/dt element.
BREAKER FAIL
45
01
CB Fail 1 Status 45 02 Enabled
Disabled
Enabled
[Indexed String]
Setting to enable or disable the first stage of the circuit breaker function.
CB Fail 1 Timer 45 03 0.2
From 0 to 10 in steps of 0.01
[Courier Number (time-seconds)]
Setting for the circuit breaker fail timer stage 1, during which breaker opening must be detected. There are timers per phase to cope with
evolving faults, but the timer setting is common.
CB Fail 2 Status 45 04 Disabled
Disabled
Enabled
[Indexed String]
Setting to enable or disable the second stage of the circuit breaker function.
CB Fail 2 Timer 45 05 0.4
From 0 to 10 in steps of 0.01
[Courier Number (time-seconds)]
Setting for the circuit breaker fail timer stage 2, during which breaker opening must be detected.
Volt Prot Reset 45 06 Prot Reset & I<
I< Only
CB Open & I<
Prot Reset & I<
[Indexed String]
Setting which determines the elements that will reset the circuit breaker fail time for voltage protection function initiated circuit breaker fail
conditions.
Ext Prot Reset 45 07 Prot Reset & I<
I< Only
CB Open & I<
Prot Reset & I<
[Indexed String]
Setting which determines the elements that will reset the circuit breaker fail time for external protection function initiated circuit breaker fail
conditions.
WI Prot Reset 45 08 Disabled
Disabled
Enabled