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1.1 Relay features
1 General
Operation and configuration
4
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VM55.EN005
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 VAMP 55 protection relay concept has two alternative
casing layout designs: basic and slim fit.
The VAMP 55S includes more compact casing than in the basic
design. In the VAMP 55S, the same protection, measurement
and control functions and communication interfaces are
supported as in the basic 55 relays.
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
59
U>, U>>,
U>>>
Overvoltage protection
24
U/f>
Volts/hertz over excitation
protection
27P
U
1
<, U
1
<<
Positive sequence undervoltage
protection for generator
applications
27
U<, U<<,
U<<<
Undervoltage protection
59N
U
0
>, U
0
>>
Zero sequence voltage protection
81H/81L
f><, f>><< Overfrequency and underfrequency
protection
81L
f<, f<<
Underfrequency protection
25
∆f, ∆U, ∆φ
Synchrocheck
Содержание VAMP 55
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