Motor Protection Relay REM 610
1MRS 755121
5
Settings Before the relay is connected to a system it
must be assured that the relay has been given
the correct settings, see table 1.
.
Table 1: Setting values
Setting Description Setting range Default setting
PU scale Protected unit scaling factor 0.50...2.50
1)
1
t
6x
Safe stall time 2...120 s
2)
2 s
p Weighting factor 20...100% 50%
K
c
Time constant multiplier 1...64 1
θ
a
> Prior alarm level 50...100% 95%
θ
i
> Restart inhibit level 20...80% 40%
T
amb
Ambient temperature 0...70°C 40°C
I
s
>/I
n
Start-up current for motor or start value of stage I
s
> 1.00…10.0 x I
n
1.00 x I
n
t
s
> Start-up time for motor or operate time of stage I
s
> 0.30...80.0 s 0.30 s
I>>/I
n
Start value of stage I>> 0.50...20.0 x I
n
1.00 x I
n
t>> Operate time of stage I>> 0.05...30.0 s 0.05 s
I
0
>/I
n
Start value of stage I
0
> 1.0...100% I
n
1.0% I
n
t
0
> Operate time of stage I
0
> 0.05...300 s 0.05 s
I</I
n
Start value of stage I< 30...80% I
n
50% I
n
t< Operate time of stage I< 2...600 s 2 s
I
2
>/I
n
Start value of stage I
2
> 0.10…0.50 x I
n
0.20 x I
n
K
2
Time constant of stage I
2
> at IDMT characteristic 5...100 5
Σt
si
Restart inhibit value 5...500 s 5 s
∆Σt
s
/∆t Countdown rate of start-up time counter 2...250 s/h 2 s/h
CBFP Operate time of CBFP 0.10...60.0 s 0.10 s
Ta1> Alarm value Ta1> 0...200°C 0°C
ta1> Operate time ta1> 1...100 s 1 s
Tp1> Trip value Tp1> 0...200°C 0°C
tp1> Operate time tp1> 1...100 s 1 s
Ta2> Alarm value Ta2> 0...200°C 0°C
ta2> Operate time ta2> 1...100 s 1 s
Tp2> Trip value Tp2> 0...200°C 0°C
tp2> Operate time tp2> 1...100 s 1 s
Ta3> Alarm value Ta3> 0...200°C 0°C
ta3> Operate time ta3> 1...100 s 1 s
Tp3> Trip value Tp3> 0...200°C 0°C
tp3> Operate time tp3> 1...100 s 1 s
Ta4> Alarm value Ta4> 0...200°C 0°C
ta4> Operate time ta4> 1...100 s 1 s
Tp4> Trip value Tp4> 0...200°C 0°C
tp4> Operate time tp4> 1...100 s 1 s
Ta5> Alarm value Ta5> 0...200°C 0°C
ta5> Operate time ta5> 1...100 s 1 s
Tp5> Trip value Tp5> 0...200°C 0°C
tp5> Operate time tp5> 1...100 s 1 s
Ta6> Alarm value Ta6> 0...200°C 0°C
ta6> Operate time ta6> 1...100 s 1 s
Tp6> Trip value Tp6> 0...200°C 0°C
tp6> Operate time tp6> 1...100 s 1 s
Thp1> Trip value Thp1> 0.1...15.0 kΩ 0.1 kΩ
Thp2> Trip value Thp2> 0.1...15.0 kΩ 0.1 kΩ
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