Settings And Unloading; Event Code - ABB REU 513 User Manual

Combined overvoltaqge and undervoltage relay
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ABB Substation Automation
Products and Systems
2.1.5.5.
2.1.5.6.
1MRS750886-MUM
User's Guide
Correspondingly, triggering on the falling edge means that the recording sequence
starts when the active signal resets.
Serial parameters V241...V244 define the triggering conditions and parameter V246
is for manual triggering. When the recorder has been triggered and a recording
stored into the memory, the value of parameter V246 changes from 0 to 1.
The default triggering condition is the operation of protection stages.

Settings and unloading

Setting parameters for the disturbance recorder are V parameters V241...V246 and
M parameters M18, M20 and M80.
Parameter
Description
V241
Specifies the signal(s) to be used for triggering: signal(s) from
the internal protection stages and/or the binary input signal.
V242
Defines whether the recorder is to be triggered on the falling or
rising edge of the signal(s) specified by parameter V241.
V243
Defines the external binary input signal to be used for
triggering.
V244
Defines whether the rising or falling edge of the binary input
signal is to trigger the recorder.
V245
Length of recording after triggering. The total recording length
is 40 cycles.
V246
Status of the recorder.
M18
Used for giving the disturbance recorder a unique identification
number.
M20
Used for designating the disturbance recorder the name of the
station where the relay is located. The maximum length of a
name is 15 characters.
M80
Used for designating the rated voltage and unit of the primary
voltage transformer(s). The format of the parameter is
XXXX,YY; where XXXX is the voltage value ranging between
0.00...600, and YY is the unit, e.g. 20.0,kV. The rated voltage
and unit are used for calculating the primary values for the
analogue channels in a special PC program used for unloading
the disturbance recorder.

Event code

It is possible to set the disturbance recorder to generate an event code into the event
register when the recorder is triggered. To enable the event code to be generated, set
the event mask in serial parameter V158. The event code generated is E31.
REU 513
35

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