VAMP 265 - 1. General; 1.1. Relay Features

1.1 Relay features
1 General
Operation and configuration
instructions
4
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VM265.EN011
1. General
This first part (Operation and configuration) of the publication
contains general descriptions of the functions, of the
differential 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
VAMP 265 differential protection relay is ideal for transformer,
motor, generator and short cable (100) differential protection.
The relay features the following protection functions.
List of protection functions
IEEE/
ANSI code
IEC symbol
Function name
50/51
3I>, 3I>>, 3I’>,
3I’>>
Overcurrent protection
87
∆I>, ∆I>>
Differential overcurrent protection
46
I
2
>, I’
2
>
Current unbalance protection
49
T>
Thermal overload protection
50N/51N
I
0
>, I
0
>>,
I
0
>>>, I
0
>>>>
Earth fault protection
51F2
I
f2
>
Second harmonic O/C stage
50BF
CBFP
Circuit-breaker failure protection
99
Prg1…8
Programmable stages
50ARC
50NARC
ArcI>, ArcI’>
ArcI
01
>, ArcI
02
>
Optional arc fault protection
Further the relay includes a disturbance recorder. Arc
protection is optionally available.
The relay communicates with other systems using common
protocols, such as the Modbus RTU, ModbusTCP, Profibus DP,
IEC 60870-5-103, SPA bus and DNP 3.0, IEC 61850 and IEC
60870-5-101.