Schweitzer Engineering Laboratories SEL-700G1 - Table 10.5 CTRY Phase Current Measuring Accuracy; Figure 10.6 CTRY Current Source Connections; Figure 10.7 Wye Voltage Source Connections

10.10
SEL-700G Relay Instruction Manual Date Code 20170814
Testing and Troubleshooting
Commissioning Tests
Step 5. Use Figure 10.6 and Table 10.5 to repeat Step 1 through Step 4.
Figure 10.6 CTRY Current Source Connections
Power and Power Factor Measuring Accuracy
Wye-Connected Voltages
Perform the following steps to test wye-connected voltages:
Step 1. Connect the current source to the relay, as shown in Figure 10.5
or Figure 10.6.
Step 2. Connect the voltage source to the relay, as shown in
Figure 10.7. Make sure that DELTAY_m := WYE
(m =XorY).
Figure 10.7 Wye Voltage Source Connections
Step 3. Using the front-panel SET/SHOW or the serial port SHOW
command, record the CTRm, PTR
m, and PHROT setting
values.
Table 10.5 CTRY Phase Current Measuring Accuracy
a
a
The displayed quantities are model dependent.
|I| Applied
(A secondary)
b
b
I
YNOM
= rated secondary amps (1 or 5).
Expected
Reading
CTRY x |I|
A–Phase
Reading
(A primary)
B–Phase
Reading
(A primary)
C–Phase
Reading
(A primary)
0.2 • I
YNOM
0.9 • I
YNOM
2.0 • I
YNOM
SEL-700G
Current
Test
Source
IA
IB
IC
ICY
IBY
IAY
IN
E01
E02
E03
E04
E05
E06
SEL-700G
Slot E or Z
09
10
11
12
Voltage
Test
Source
VA
VB
VC
VN