VAMP 52 User Manual

Operation and configuration 1 General 1.1 Relay features
1. General
This first part (Operation and configuration) of the publication
contains general descriptions of the functions, of the protection
relay as well as operation instructions. It also includes
instructions for parameterization and configuration of the relay
and instructions for changing settings.
The second part (Technical description) of the publication
includes detailed protection function descriptions as well as
application examples and technical data sheets.
The Mounting and Commissioning Instructions are published
in a separate publication with the code VMMC.EN0xx.
1.1. Relay features
The comprehensive protection functions of the relay make it
ideal for utility, industrial, marine and off-shore power
distribution applications. The relay features the following
protection functions.
List of protection functions
IEEE/ANSI
code
IEC symbol Function name Note
50/51
3I>, 3I>>, 3I>>> Overcurrent protection
46R
I
2
/I
1
> Broken conductor protection
46 I
2
> Current unbalance protection Only VAMP 51/52
47 I
2
>>
Phase reversal / incorrect
phase sequence protection
48 I
st
> Stall protection
66
N> Frequent start protection
Only VAMP52
available when
application option is
in motor protection
mode.
49 T> Thermal overload protection
37 I< Undercurrent protection Only VAMP52
50N/51N
I
0
>, I
0
>>, I
0
>>>,
I
0
>>>>
Earth fault protection
67NT
I
0t
> Intermittent transient earth
fault protection
67N





Directional earth fault
protection
59N
U
0
>, U
0
>> zero sequence voltage
protection
Only VAMP52
available when
measurement option
is Uo
59
U>, U>>, U>>> Single-phase overvoltage
protection
27
U<, U<<, U<<< Single-phase undervoltage
protection
Only VAMP 52
available when
measurement option
is 1LL (line-to-line
voltage) or 1LN
(phase-to-neutral
voltage).
51F2 I
f2
> Second harmonic stage
50BF
CBFP Circuit-breaker failure
protection
99 Prg1…8 Programmable stages Only VAMP51/52
VM50.EN004 VAMP 24h support phone +358 (0)20 753 3264
3

VAMP 52 Specifications

General

Brand	VAMP
Model	52
Category	Relays
Language	English