INVALID VALUE
PT SECONDARY
The Valid range of instrument is from 100 to 600V.
If value outside the range is entered, It will display “INVALID VALUE”
followed by correct range of parameter.
Note
: Changing PT Secondary would erase the Sag and Swell data
of PQ events.
3.2.1.3 Potential Transformer secondary Value
The value must be set to the nominal full scale secondary voltage which will be obtained from
the the Transformer when the potential transformer(PT)primary is supplied with the voltage
dened in 3.2.1.2 potential transformer primary voltage. The ratio of full scale primary to full
scale secondary is dened as the transformer ratio.
This screen can be accessed only from system parameters list menu. Here again 0 to 9 digit
input keypad is provided to set value of PT Secondary, & user can conrm this value with a
simple touch on “ key”.
ENTER
3.2.1.4 Current Transformer Primary Value
The nominal Full Scale Current that will be displayed as the Line currents. This screen enables
the user to display the Line currents inclusive of any transformer ratios, the values displayed
representthe Current in Amps.
This screen can be accessed only from system parameters list menu.
Here again 0 to 9 digit input keypad is provided to set value of CT
Primary & user can conrm this value with a simple touch on “ key”
and “ key” is used to multiply value by 1000. In case presently
displayed Current Transformer Primary Value together with the
Potential Transformer Primary Value results in a maximum power of
greater than 666.6 MVA, “invalid value” will be displayed. Example: If
primary value of PT is set as 692.8kV L-L (max value) then primary
value of Current is restricted to 1157A.
ENTER CT PRIMARY VALUE
ENTER
K
CT PRIMARY
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Summary of Contents for Master 3440iDL 0.2SS
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