Schweitzer Engineering Laboratories SEL-321 - Page 269

Date Code 20011026 Maintenance and Testing iii
SEL-321/321-1 Instruction Manual
TABLES
Table 7.1: Fault Locator Test Values ....................................................................................................... 7-6
Table 7.2: Output Contact and Target LED Results.................................................................................7-6
Table 7.3: Test Quantities for Zone 2 Phase Distance Element .............................................................7-34
Table 7.4: Test Quantities for Zone 2 Ground Mho Distance Element..................................................7-41
Table 7.5: Test Quantities for Zone 2 Ground Quadrilateral Distance Element: Reactive Reach........7-46
Table 7.6: Test Quantities for Zone 2 Ground Quadrilateral Distance Element: Resistive Reach ....... 7-50
FIGURES
Figure 7.1: Relay Part Number and Hardware Identification Sticker.....................................................7-2
Figure 7.2: Low-Level Test Interface ................................................................................................... 7-13
Figure 7.3: Three Voltage Source and Three Current Source Test Connections .................................7-14
Figure 7.4: Phase-to-Phase, Phase-to-Ground, and Two-Phase-to-Ground Fault Test
Connections Using Two Current Sources....................................................................7-15
Figure 7.5: Three-Phase Fault and METER Test Connections Using Two Current Sources...............7-15
Figure 7.6: Phase-to-Ground Fault Test Connections Using a Single Current Source......................... 7-16
Figure 7.7: Phase-to-Phase Fault Test Connections Using a Single Current Source............................7-16
Figure 7.8: Communications Connections Between the SEL-321 Relay and a Terminal ....................7-17
Figure 7.9: Phase Distance Element Test Voltage Signals ...................................................................7-35