13 Revision history
Technical description
VM259.EN007
VAMP 24h support phone +358 (0)20 753 3264
299
13.
Revision history
Manual revision history
VM259.EN001
First version of VAMP 259 manual.
From this version onwards, the manual also applies to
VAMP 257.
VM259.EN002
Renamed Broken conductor protection to Broken line
protection
Intermittent transient earth fault protection function
added
Adjustments in technical data
VM259.EN003
The operation time for voltage interruptions changes
to < 60 ms fixed.
New text and pictures of Trip circuit supervision
added.
Earth-fault distance protection Ze< (21N)
Added.
VAMP 257 / 259 order codes are modified to support
inbuilt Ethernet and IEC 61850.
Line differential protection LdI > (87) added.
VM259.EN004
From this version onwards, the manual does not
applied to VAMP 257 anymore.
VM259.EN005
Second harmonic O/C stage added.
Distance protection application added.
VM259.EN006
Arc flash protection delayed light indication signal and
technical data were amended.
Description of running virtual comtrade files with
VAMP relays added in chapter Disturbance recorder.
VM259.EN007
Double earth fault added.