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REJ 523
4.1.7.6
34
Technical Reference Manual
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...82
Used for designating analogue channels the conversion factor
and unit. The formats of the parameters are XXXXX, YY;
where XXXXX is the conversion factor, and YY is the unit of
the channel in question. The conversion factor is the ratio
between the primary and secondary sides of the current
transformer (CT) multiplied by the rated current of the relay,
ranging between 0...65535. Unit is a one or two character text,
indicating the unit of the analogue channel. The conversion
factors and units are used for calculating the primary values in
a special PC program used for unloading, displaying and
storing the curve forms from 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 V157. The event code generated is E31.
ABB Substation Automation
Products and Systems
MRS750940-MUM
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