GE P444 User Manual

Setting
P44x/EN ST/Hb
6
MiCOM P40 Agile
P442, P444 (ST) 4-
37
2.14.2 Overfrequency protection
Menu text Default setting
Setting range
Step size
Min Max
GROUP 1 – FREQ PROTECTION
OVERFREQUENCY
F>1 Status Disabled Disabled / Enabled
Setting to enable or disable the first overfrequency element. The F>1 threshold setting and
time-delay (following submenus) are settable when F>1 status is enabled.
F>1 Setting 50.5Hz 45Hz 65Hz 0.01Hz
Setting that determines the pick-up threshold for the first stage overfrequency element.
F>1 Time delay 2s 0s 100s 0.01s
Setting that determines the minimum operating time-delay for the first stage overfrequency
element.
F>2 Status Disabled Disabled / Enabled
Setting to enable or disable the second overfrequency threshold (same setting as stage 1).
F>2 Setting 51Hz 45Hz 65Hz 0.01Hz
F>2 Time delay 1s 0s 100s 0.01s
2.15 Circuit breaker fail protection (CBF) (“CB Fail & I<” menu)
Menu text Default setting
Setting range
Step size
Min Max
GROUP 1 – CB FAIL & I<
BREAKER FAIL
CB Fail 1 Status Enabled Enabled, Disabled
Setting to enable or disable the first stage of the circuit breaker function.
CB Fail 1 Timer 0.2 s 0 s 10 s 0.01 s
Setting for the circuit breaker fail timer stage 1, during which breaker opening must be
detected.
CB Fail 2 Status Disabled Enabled, Disabled
Setting to enable or disable the second stage of the circuit breaker function.
CB Fail 2 Timer 0.4 s 0 s 10 s 0.01 s
Setting for the circuit breaker fail timer stage 2, during which breaker opening must be
detected.
CBF Non I Reset CB Open & I< I< Only, CB Open & I<, Prot Reset & I<,
Prot Reset or I<, Disable
Setting which determines the elements that will reset the circuit breaker fail time for
undercurrent protection function initiated circuit breaker fail conditions.

GE P444 Specifications

General

Brand	GE
Model	P444
Category	Protection Device
Language	English