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1. Introduction
This part of the user manual describes the protection functions,
provides a few application examples and contains technical
data.
Mounting and commissioning instructions are given in a
separate mounting and commissioning manual
(VMMC.EN0xx).
The numerical VAMP differential protection include all the
essential protection functions needed to protect transformers
for distribution networks of utilities, industry, power plants
and offshore applications as well as motor and generator
differential protection. Further, the device includes several
programmable functions, such as arc (option), thermal and
circuit breaker protection and communication protocols for
various protection and communication situations.
The generator, transformer and motor differential protection
relay VAMP 265 can be used for selective differential
overcurrent, short-circuit protection of generators, trans-
formers and motors in solidly or impedance earthed power
systems. The relay can also be used for single, two or three-
phase overcurrent and/or sensitive earth fault protection.
The modern technology in association with an extensive self-
supervision system and a reliable construction ensures an
extremely high availability for the VAMP 265 protection relay
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