Toshiba GR200 Series Instruction Manual page 1213

9.2-1 illustrates the information about currents. A reference phasor is defined to examine a
complex data in the metering and a positive-sequence voltage (V1) is defined as the reference.
The metering function has minimum sensing threshold; thus, the user shall notice that zero
(0) is displayed, if the provided data is lesser than the threshold.
Figure 9.2-1 Current meter on the IED screen
Note: If any quantity does not enter to the VCT, the value on the screen is displayed
such as "***.**" and "–––––".
Setting for measurements
9.2.2
Selecting either primary/secondary values
(i)
In the metering function, the value of the primary side is displayed on the screen; when the
value is greater than 1000 volts, it will be displayed in KV unit. When the user prefers
displaying the value of the secondary side, the user should set Secondary for the setting
[Display_Value].Table 9.2-2 shows the effective digit when Secondary is set.
Figure 9.2-2 Metering setting in the setting screen
Note: For the operation of the menu, see Chapter
Metering screen
Voltage
Current
Unit setting
(ii)
The user can select to a metering unit for each metering value. For example, the current is
Metering
10:48
Ia
12.345kA
Ib
12.345kA
Ic
12.345kA
Metering
10:48
Display Value
Primary
I-Display Unit
kA
V-Display Unit
kV
Table 9.2-2 Significant digits for metering
Settings
Primary
Secontray
Primary
Secontray
- 1190 -
1/59
123.45deg
123.45deg
123.45deg
1/2
+
+
+
User interface: Setting sub-menu
Maximum number of significant
digits after decimal point
Current/Voltage
1
2
3
6F2S1914 (0.49)
.
Phase angle
1
GRL200 (Soft 033 & 037)