Camille Bauer SIRAX BT5700 Manual - page 16
PM 1000284 000 01
Device handbook SIRAX BT5700
16/31
Pressing “UP” key accepts the present value and then advances to
Current transformer (CT) Primary value edit menu (section 7.2.3).
Pressing “DOWN” key enters into “Potential Transformer Primary Value
Edit” mode.
Initially the multiplier must be selected. Pressing the “DOWN” key will
move the decimal point position to the right unit it reaches # # # .# after
which it will return to # # # #.
Pressing “UP” key selects the present multiplier (decimal point position)
and advances to the “potential Transformer primary digit Edit” mode.
(* denotes that the digit will be fl ashing)
Pressing the “DOWN” key will scroll the value of the most signifi cant digit
from 0 through to 9 unless the presently displayed Potential Transfor-
mer Primary Value together with the Current Transformer Primary Value,
previously set, would result in maximum power of greater than 666MVA per
phase, in which case the digit range will be restricted.
Pressing “UP” key accepts the present value at the cursor position and
advances the cursor to the next less signifi cant digit.
When the least signifi cant digit has been set, pressing “DOWN” key will
advance to the “Potential Transformer Primary Value Confi rmation” stage.
If scaling is to be corrected, pressing “DOWN” key will return to the
“Potential Transformer Primary Value Edit” stage with the digits fl ashing
indicating that the multiplier (decimal point position) should be selected.
Pressing “UP” key sets the displayed value and then it will advance to
Current transformer Primary Value selection menu (section 7.2.3).
Pressing “DOWN” key will enter the “Current transformer
Transformer Primary Value Edit” mode. This will scroll the value of the
most signifi cant digit from 0 through to 9, unless the presently displayed
Current Transformer Primary Value together with the Potential Transfor-
mer Primary Value results in a maximum power of greater than 666MVA
in which case the digit range will be restricted, the value will wrap.
Example:
If primary value of PT is set as 692.8 kVLL (max value) then primary
value of Current is restricted to 1157A.
PT PRI : 0.415 k
VLL
PT PRI : *.415 k
EdiT
PT PRI : *.415 k
SET OK
CT PRI : 0005
A
Potential Transformer Primary Digit edit
Potential transformer Primary value Confi rmation
7.2.2 Potential Transformer primary Value
The nominal full scale voltage which will be displayed as Line to Line voltage in four wire or 3 wire system. The value represent the voltage in
kVLL.
Maximum Potential transformer primary value can be set to 692.8 kVLL or restricted to 666 MVA depends on previously set Current transformer
(CT) primary value. The minimum value allowed is 100VLL.
7.2.3 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
the transformer ratios, the values displayed represent the Current in Amps.
Maximum Current transformer primary value can be set to 9999 A or restricted to 666 MVA depends on previously set Potential transformer (PT)
Primary value.
Pressing “UP” key accepts the present value and advances to the Current transformer Secondary value menu (section 7.2.4)