Alstom MiCOM P545 - Page 121

Settings P54x/EN ST/La4
MiCOM P543, P544, P545, P546
(ST) 4-43
ST
Setting range
Menu text Default setting Step size
Min. Max.
V> Operate Mode V<1 & V<2 Any Ph
V<1 & V<2 Any Ph
V<1 & V<2 3Phase
V<1AnyPh V<2 3Ph
V<1 3Ph V<2AnyPh
N/A
Setting that determines whether any phase or all three
overv ia before e.
Note: If any stage is disabled, the associated text setting m ll setting will
le but will not affect the ope d.
phases has to satisfy the
oltage criter a decision is mad
in the enu ce
remain visib ration of the stage that is enable
V>1 Function DT Disabled, DT or IDMT N/A
Tripping characteristic setting for the first stage overvoltage element.
The IDMT characteristic available on the first st
M - 1
Where:
t = Operating time in seconds
asure
age is defined by the following formula:
t = K/( )
K = Time multiplier setting
M = Me d voltage/relay setting voltage (V<>Voltage Set)
V>1 Voltage Set 130 V 60 V 185 V 1 V
Sets the pick-up setting for first stage overvoltage element.
V>1 Time Delay 10 s 0 s 100 s 0.01 s
Setting for the operating time-delay for the first sta definite time overvoltage ege lement.
V>1 TMS 1 0.5 100 0.5
Setting for the time multiplier setting to adjust the operating time of the IDMT
characteristic.
V>2 Status Disabled Enabled or Disabled N/A
Setting to enable or disa cond stage o voltage elemble the se ver ent.
V>2 Voltage Set 150 V 60 V 185 V 1 V
This setting determines the pick-up setting for the second stag rvoltage e . e ove lement
V>2 Time Delay 0.5 s 0 s 100 s 0.01 s
Setting for the operating time-delay for the nd stag seco e definite time overvoltage
element.
COMP OVERVOLTAGE
V1>1 Cmp Funct DT Disabled, DT or IDMT N/A
Tripping characteristic setting for the first stage compensated o tage ele
rmula:
- 1
K = Time multiplier setting
atin time in seconds
calculated voltage/relay setting voltage (V<>Voltage Set)
vervol ment.
The IDMT characteristic available on the first stage is defined by the following fo
t = K/(M )
Where:
t = Oper
M = Remote
g
V1>1 Cmp Vlt Set 75 V 60 V 110 V 1 V
Sets the pick-up setting for first stage overvoltage element. This is set in terms of the
phase to neutral voltage.