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6 F 2 S 0 8 4 6
3.5 Metering
Function
The GRZ100 performs continuous measurement of the analog input quantities. The currents and
voltages at remote terminals can be also displayed. The measurement data shown below is updated
every second and displayed on the LCD of the relay front panel or on the local or remote PC.
- Magnitude and phase angle of phase voltage (Va, Vb, Vc)
- Magnitude and phase angle of phase-to-phase voltage (Vab, Vbc, Vca)
- Magnitude and phase angle of symmetrical component voltage (V1, V2, V0)
- Magnitude and phase angle of phase voltage for autoreclose (Vs1, Vs2)
- Magnitude and phase angle of phase current (Ia, Ib, Ic)
- Magnitude and phase angle of phase-to-phase current (Iab, Ibc, Ica)
- Magnitude and phase angle of symmetrical component current (I1, I2, I0)
- Magnitude of parallel line zero sequence current (I0m)
- Percentage of thermal capacity (THM%) except for model 400 and 500 series
- The ratio of negative to positive sequence current (I2/I1)
- Active power and reactive power (P, Q)
- Frequency
Phase angles above are expressed taking the positive sequence voltage as a reference phase angle,
where leading phase angles are expressed as positive, (+).
The above system quantities are displayed in values on the primary side or on the secondary side
determined by the setting. To display accurate values, it is necessary to set the CT ratio and VT
ratio as well. For the setting method, see "Setting the line parameters" in 4.2.6.7.
The signing of active and reactive power flow direction can be set positive for either power
sending or power receiving. The signing of reactive power can be also set positive for either
lagging phase or leading phase. For the setting method, see 4.2.6.6.
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: ......