6
TB MRU3-1 12.00 E
3.1.6
Parameter settings
System parameters
Uprim/Usek Primary/secondary measured value
display of the voltage transformers
∆
/ Y
Selection of switching groups
f
N
Rated frequency
P2|FR
Parameter switch/ext. triggering for the
fault recorder
LED-Flash
Suppression of LED flashing after
activation
Protection parameters
1/3
1-phase U</U> or 3-phase U</U>
tripping
U<
Tripping value for undervoltage low set
element
t
U<
Tripping delay time for undervoltage low
set element
U<<
Tripping value for undervoltage high set
element
t
U<<
Tripping delay time for undervoltage
high
set element
U>
Tripping value for overvoltage low set
element
t
U>
Tripping delay time for overvoltage low
set element
U>>
Tripping value for overvoltage high set
element
t
U>>
Tripping delay time for overvoltage high
set element
Parameters for the fault recorder
FR
Number of disturbance events
FR
Trigger events
FR
Pre-trigger time T
vor
Date and time
Year
Y = 00
Month
M = 04
Day
D = 18
Hour
h = 07
Minute
m = 59
Second
s = 23
Additional functions
Blocking function
Relay configuration
Fault memory
3.2
LEDs
All LEDs (except LED RS, FR and P2) are two-coloured.
The LEDs on the left side, next to the alphanumerical
display light up green during measuring and red after
tripping.
The LEDs below the push button <SELECT/RESET> are
lit green during setting and inquiry procedure of the
setting values which are printed on the left side next to
the LEDs. The LEDs will light up red after parametrizing
of the setting values next to their right side.
The LED marked with letters RS lights up during setting
of the slave address of the device for serial data com-
munication.
The LED marked with the letters FR is alight while the
fault recorder is being adjusted.
If the
!
LED is displayed, date and time are shown.
3.3
Front plate
Figure 3.5:
Front plate
MRU3-1
Содержание MRU3-1
Страница 1: ...MRU3 1 AC voltage relay...