⎯
226
⎯
6 F 2 S 0 8 4 6
6.4.4 AC Input Circuits
This test can be performed by applying known values of voltage and current to the AC input
circuits and verifying that the values applied coincide with the values displayed on the LCD
screen.
The testing circuit is shown in Figure 6.4.4.1. A three-phase voltage source and a single-phase
current source are required.
Three-phase
voltage
source
A
φ
V
TB1
-12
-11
V
V
φ
φ
Single-phase
current
source
DC
power
supply
+
−
-13
-14
TB1
-2
-1
-3
-4
-6
-5
-7
-8
-10
-9
-A16
-A17
E
TB4
Ia
Ib
Ic
GRZ100
Figure 6.4.4.1 Testing AC Input Circuit
•
Check that the metering data is set to be expressed as secondary values (Display value = 2) on
the "Metering" screen.
"Setting (view)" sub-menu
→
"Status" screen
→
"Metering" screen
If the setting is Primary (Display value = 1), change the setting in the "Setting (change)"
sub-menu. Remember to reset it to the initial setting after the test is finished.
•
Open the "Metering" screen in the "Status" sub-menu.
"Status" sub-menu
→
"Metering" screen
•
Apply AC rated voltages and currents and check that the displayed values are within
±
5% of the
input values.
3Io
3Iom
Vc
Vb
Va
Summary of Contents for GRZ100 B Series
Page 264: ... 263 6 F 2 S 0 8 4 6 Appendix A Block Diagram ...
Page 271: ... 270 6 F 2 S 0 8 4 6 ...
Page 272: ... 271 6 F 2 S 0 8 4 6 Appendix B Signal List ...
Page 307: ... 306 6 F 2 S 0 8 4 6 ...
Page 308: ... 307 6 F 2 S 0 8 4 6 Appendix C Variable Timer List ...
Page 310: ... 309 6 F 2 S 0 8 4 6 Appendix D Binary Input Output Default Setting List ...
Page 321: ... 320 6 F 2 S 0 8 4 6 ...
Page 322: ... 321 6 F 2 S 0 8 4 6 Appendix E Details of Relay Menu and LCD Button Operation ...
Page 331: ... 330 6 F 2 S 0 8 4 6 ...
Page 340: ... 339 6 F 2 S 0 8 4 6 Appendix G Typical External Connections ...
Page 377: ... 376 6 F 2 S 0 8 4 6 ...
Page 384: ... 383 6 F 2 S 0 8 4 6 Appendix J Return Repair Form ...
Page 388: ... 387 6 F 2 S 0 8 4 6 Customer Name Company Name Address Telephone No Facsimile No Signature ...
Page 389: ... 388 6 F 2 S 0 8 4 6 ...
Page 390: ... 389 6 F 2 S 0 8 4 6 Appendix K Technical Data ...
Page 401: ... 400 6 F 2 S 0 8 4 6 ...
Page 402: ... 401 6 F 2 S 0 8 4 6 Appendix L Symbols Used in Scheme Logic ...
Page 405: ... 404 6 F 2 S 0 8 4 6 ...
Page 406: ... 405 6 F 2 S 0 8 4 6 Appendix M Example of Setting Calculation ...
Page 417: ... 416 6 F 2 S 0 8 4 6 ...
Page 418: ... 417 6 F 2 S 0 8 4 6 Appendix N IEC60870 5 103 Interoperability and Troubleshooting ...
Page 434: ... 433 6 F 2 S 0 8 4 6 Appendix P Inverse Time Characteristics ...
Page 437: ... 436 6 F 2 S 0 8 4 6 ...
Page 438: ... 437 6 F 2 S 0 8 4 6 Appendix Q Failed Module Tracing and Replacement ...
Page 444: ... 443 6 F 2 S 0 8 4 6 Appendix R Ordering ...
Page 447: ......