Schweitzer Engineering Laboratories SEL-311C - Page 20

xviii List of Figures
SEL-311C Relay Instruction Manual Date Code 20060320
Figure 8.8 Input IN106 Connected to Trip Bus for Breaker Monitor Initiation ....................................8.13
Figure 8.9 DC Under- and Overvoltage Elements .................................................................................8.15
Figure 8.10 Create DC Voltage Elements With SEL
OGIC Control Equations .........................................8.16
Figure 8.11 Response of Thermal and Rolling Demand Meters to a Step Input
(Setting DMTC = 15 Minutes)..........................................................................................8.21
Figure 8.12 Current I
S
Applied to Parallel RC Circuit ............................................................................8.22
Figure 8.13 Demand Current Logic Outputs ...........................................................................................8.24
Figure 8.14 Raise Pickup of Residual Ground Time-Overcurrent Element for Unbalance Current .......8.25
Figure 9.1 U. S. Moderately Inverse Curve: U1 ......................................................................................9.6
Figure 9.2 U. S. Inverse Curve: U2..........................................................................................................9.7
Figure 9.3 U. S. Very Inverse Curve: U3 .................................................................................................9.8
Figure 9.4 U. S. Extremely Inverse Curve: U4 ........................................................................................9.9
Figure 9.5 U. S. Short-Time Inverse Curve: U5.....................................................................................9.10
Figure 9.6 I. E. C. Class A Curve (Standard Inverse): C1 .....................................................................9.11
Figure 9.7 I. E. C. Class B Curve (Very Inverse): C2 ............................................................................9.12
Figure 9.8 I. E. C. Class C Curve (Extremely Inverse): C3 ...................................................................9.13
Figure 9.9 I. E. C. Long-Time Inverse Curve: C4..................................................................................9.14
Figure 9.10 I. E. C. Short-Time Inverse Curve: C5 .................................................................................9.15
Figure 10.1 DB-9 Connector Pinout for EIA-232 Serial Ports ................................................................10.2
Figure 11.1 SEL-311C Front-Panel Pushbuttons—Overview .................................................................11.2
Figure 11.2 SEL-311C Front-Panel Pushbuttons—Primary Functions ...................................................11.3
Figure 11.3 SEL-311C Front-Panel Pushbuttons—Primary Functions (Continued)...............................11.4
Figure 11.4 SEL-311C Front-Panel Pushbuttons—Secondary Functions ...............................................11.5
Figure 11.5 Local Control Switch Configured as an ON/OFF Switch ....................................................11.8
Figure 11.6 Local Control Switch Configured as an OFF/MOMENTARY Switch ................................11.8
Figure 11.7 Local Control Switch Configured as an ON/OFF/MOMENTARY Switch..........................11.9
Figure 11.8 Correspondence Between Changing Display Point States
and Enabled Display Point Labels ..................................................................................11.14
Figure 12.1 Example Event Summary .....................................................................................................12.4
Figure 12.2 Example Synchrophasor-Level Precise Event Report 1/16-Cycle Resolution.....................12.8
Figure 12.3 Example Standard 15-Cycle Event Report 1/4-Cycle Resolution......................................12.24
Figure 12.4 Derivation of Event Report Current Values
and RMS Current Values From Sampled Current Waveform .........................................12.25
Figure 12.5 Derivation of Phasor RMS Current Values From Event Report Current Values ................12.26
Figure 12.6 Example Sequential Events Recorder (SER) Event Report................................................12.31
Figure 13.1 Low-Level Test Interface......................................................................................................13.6
Figure 13.2 Three Voltage Source and Three Current Source Test Connections...................................13.15
Figure 13.3 Phase-to-Phase, Phase-to-Ground, and
Two-Phase-to-Ground Fault Test Connections Using Two Current Sources..................13.16
Figure 13.4 Three-Phase Fault and METER Test Connections Using Two Current Sources................13.17
Figure 13.5 Phase-to-Ground Fault Test Connections Using a Single Current Source .........................13.18
Figure 13.6 Phase-to-Phase Fault Test Connections Using a Single Current Source ............................13.19
Figure 13.7 Communications Connections Between the SEL-311C and a Terminal ............................13.19
Figure 13.8 Phase Distance Element Test Voltage Signals ....................................................................13.37
Figure 14.1 SEL-221G and SEL-311C Out-of-Step Characteristics .......................................................14.3
Figure 14.2 SEL-221G-5 and SEL-311C Out-of-Step Characteristics..................................................14.11
Figure 14.3 Voltage Supervised Reclosing Logic..................................................................................14.46
Figure B.1 Establishing a Connection ..................................................................................................... B.3
Figure B.2 Determining the Computer Serial Port .................................................................................. B.3
Figure B.3 Determining Communications Parameters for the Computer ............................................... B.4
Figure B.4 Setting Terminal Emulation................................................................................................... B.4
Figure B.5 Terminal Emulation Startup Prompt......................................................................................B.5
Figure B.6 Correcting the Port Setting .................................................................................................... B.5
Figure B.7 Correcting the Communications Parameters ......................................................................... B.6
Figure B.8 Preparing HyperTerminal for ID Command Display ............................................................ B.7
Figure B.9 List of Commands Available in SEL
BOOT ............................................................................ B.8
Figure B.10 Matching Computer to Relay Parameters.............................................................................. B.9
Figure B.11 Example Receive File Dialog Box.......................................................................................B.10