Alstom iSTAT M355, Руководство пользователя

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User Manual M3x5/EN M/B
iSTAT M3x5
Page 45
10.5 Connection
The setting of the connection parameters must reflect the actual applications or the
measurements will not be valid.
All of the settings in this section should be defined before the settings for the analogue and
alarm outputs, as changes to this section may automatically change the measurements and
output settings.
FIGURE 10-5: CONNECTION
10.5.1 Connection
When the connection is selected, the load connection and the supported measurements are
defined (see section 12.2).
When the Connection is modified all other settings must be reviewed to ensure that they are
still valid for the new Connection selected.
(KD) Main menu  Settings  Connection  Connection mode
10.5.2 Setting of current and voltage ratios
The details of the application must be known to define these settings; all other
measurements depend on them. Values with up to 5 numerical digits and a maximum of 3
decimal places can be input.
Auxiliary CT transformer ratios can be set separately from phase CT ratios since Auxiliary
CT could differ from phase CTs.
Range of CT and
VT ratios VT primary VT secondary CT primary CT secondary
Maximum value 1638,3 kV 13383 V 1638,3 kA 13383 A
Minimum value 0,1 V 1 mV 0,1 A 1 mA
(KD) Main menu  Settings  Connection  VT/CT/Aux CT