Alstom MiCOM P54 Series - 1.3.16 Frequency protection

P54x/EN ST/La4 Settings
(ST) 4-44 MiCOM P543, P544, P545, P546
ST
Setting range
Menu text Default setting
Min. Max.
Step size
V1>1 Cmp Tim Dly 10 s 0 s 100 s 0.01 s
Setting for the operating e first
overvoltage element.
time-delay for th stage definite time compensated
V1>1 CmpTMS 1 0.5 100 0.5
Setting for the time mul to adjust th ing tim T
characteristic.
tiplier setting e operat e of the IDM
V1>2 Cmp Status Disabled Enabled or Disabled N/A
Setting to enable or dis cond stage c ensated ov ge elemable the se omp ervolta ent.
V1>2 Vlt Set 85 V 60 V 110 V 1 V
This setting determines the pick-up setting for the second stage overvoltage e ment. le
V1>2 CmpTim Dly 0.5 s 0 s 100 s 0.01 s
Setting for the operating time-delay for the e compensated
overvoltage element.
second stage definite tim
1.3.16 F n
The relay includes 4 stages of underfrequency uency protection to
facilitate load shedding and subsequent restor frequency stages may be
optionally blocked by a pole dead (CB Open) co
Setting range
requency protectio
and 2 stages of overfreq
ation. The under
ndition.
Menu text Default setting
Min. Max.
Step size
FREQ. PROTECTION
GROUP 1
UNDERFREQUENCY
F<1 Status Enabled Enabled or Disabled N/A
Setting to enable or disable the first stage underfrequency element.
F<1 Setting 49.5 Hz 45 Hz 65 Hz 0.01 Hz
Setting that determines threshold fo e first stage ncthe pick-up r th underfreque y element.
F<1 Time Delay 4 s 0 s 100 s 0.01 s
Setting that determines the minimum operating time-delay for the first stage
underfrequency element.
F<2 Status
(same as stage 1)
Disabled Enabled or Disabled N/A
F< 3 Status
(s stag 1) ame as e
Disabled Enabled or Disabled N/A
F< s 4 Statu
(s stage1) ame as
Disabled Enabled or Disabled N/A