VAMP 257, Operation And Configuration Instructions

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VAMP Ltd Feeder and motor manager
Technical description
VAMP 257
VM257.EN002 VAMP 24h support phone : +358 (0)20 753 3264
9
2.2. Manager function dependencies
2.2.1. Manager function reference guide
IEEE
no
IEC symbol
Function name
VA
MP 2
57
50/51
3I>, 3I>>,
3I>> Overcurrent protection
X
67
I
dir
>, I
dir
>>,
I
dir
>>>,
I
dir
>>>>
Directional overcurrent protection
X
46 I
2
/I
1
> Broken conductor protection X
46 I
2
> Unbalance protection X *
47
I
2
>> Phase reversal / incorrect phase sequence
protection
X *
48 I
st
> Stall protection X *
66 N> Frequent start protection X *
37 I< Undercurrent protection X
67N Ι
0ϕ
>, Ι
0ϕ
>> Directional earth fault protection X
50N/51
N
I
0
>, I
0
>>, I
02
>,
I
02
>>
Earth fault protection
X
59N U
0
>, U
0
>> Residual voltage protection X
49 T> Overload protection X
79 Auto reclose function X
59
U>, U>>,
U>>> Overvoltage protection
X
27
U<, U<<,
U<<< Undervoltage protection
X
32 P<, P<< Reverse and under power protection X
81H/
81L
f><, f>><< Over- and under-frequency protection
X
81L f<, f<< Underfrequency protection X
81R
df/dt Rate of change of frequency (ROCOF)
protection
X
68 2.ha Second harmonic stage /inrush X
50BF CBFP Circuit-breaker failure protection X
50AR ArcI> Arc fault protection X **
Fault location X
25 ∆ f, ∆ U, ∆ϕ Synchrocheck X
Protection
f
u
n
ction
s
Capacitor bank unbalance protection X
3I Three-phase current X
l
0
Neutral current X
I
2
Current unbalance X
I
L
Average and maximum demand current X
3U Phase and line voltages X
U
0
Residual voltage X
U
2
Voltage unbalance X
Xfault Short-circuit fault reactance X
Xfault Earth-fault reactance X
Measure
m
ent functions
f System frequency X
*) Only available when application mode is motor protection
**) Option