Date Code 20080213 Instruction Manual SEL-351A Relay
List of Tables
Table 1.1 SEL-351A Models.................................................................................................................. 1.2
Table 1.2 SEL-351A-1 Models .............................................................................................................. 1.2
Table 1.3 Major Differences—SEL-351, SEL-351A, and SEL-351A-1 ............................................... 1.3
Table 2.1 Communications Cables to Connect the SEL-351A to Other Devices ................................ 2.19
Table 2.2 Output Contact Jumpers and Corresponding Output Contacts ............................................ 2.36
Table 2.3 “Extra Alarm” Output Contacts and Corresponding Controlling Jumpers .......................... 2.36
Table 2.4 Required Position of Jumper JMP23 for Desired Output Contact OUT107 Operation....... 2.36
Table 2.5 Password and Breaker Jumper Positions for Standard Relay Shipments............................. 2.37
Table 2.6 Password and Breaker Jumper Operation ............................................................................ 2.37
Table 2.7 EIA-232 Serial Port Voltage Jumper Positions for Standard Relay Shipments ................... 2.37
Table 3.1 Available Phase Time-Overcurrent Elements....................................................................... 3.16
Table 3.2 Phase Time-Overcurrent Element (Maximum Phase) Settings............................................ 3.16
Table 3.3 Phase Time-Overcurrent Element (Maximum Phase) Logic Outputs.................................. 3.17
Table 3.4 Neutral-Ground Time-Overcurrent Element Settings .......................................................... 3.23
Table 3.5 Available Residual-Ground Time-Overcurrent Elements .................................................... 3.24
Table 3.6 Residual-Ground Time-Overcurrent Element 51GT Settings.............................................. 3.24
Table 3.7 Residual-Ground Time-Overcurrent Element 51G2T Settings............................................ 3.25
Table 3.8 Negative-Sequence Time-Overcurrent Element Settings..................................................... 3.27
Table 3.9 Voltage Values Used by Voltage Elements........................................................................... 3.28
Table 3.10 Voltage Elements Settings and Settings Ranges (Wye-Connected PTs).............................. 3.28
Table 3.11 Voltage Elements Settings and Settings Ranges (VS Channel) ........................................... 3.29
Table 3.12 Voltage Elements Settings and Settings Ranges (Delta-Connected PTs)............................. 3.29
Table 3.13 Synchronism Check Elements Settings and Settings Ranges .............................................. 3.36
Table 3.14 Frequency Elements Settings and Settings Ranges.............................................................. 3.51
Table 4.1 Available Ground Directional Elements............................................................................... 4.11
Table 4.2 Best Choice Ground Directional Element™ Logic.............................................................. 4.12
Table 4.3 Ground Directional Element Availability by Voltage Connection Settings ......................... 4.13
Table 4.4 Overcurrent Elements Controlled by Level Direction Settings DIR1–DIR4
(Corresponding Overcurrent Element Figure Numbers in Parentheses) .......................... 4.39
Table 4.5 Affect of Global Settings VSCONN and PTCONN on
Petersen Coil Directional Elements.................................................................................. 4.55
Table 5.1 SEL-351A Front-Panel Target LED Definitions.................................................................. 5.10
Table 6.1 Relay Word Bit and Front-Panel Correspondence to Reclosing Relay States ..................... 6.13
Table 6.2 Reclosing Relay Timer Settings and Setting Ranges ........................................................... 6.15
Table 6.3 Shot Counter Correspondence to Relay Word Bits and Open Interval Times ..................... 6.18
Table 6.4 Reclosing Relay SEL
OGIC Control Equation Settings......................................................... 6.18
Table 6.5 Example Open Interval Time Settings ................................................................................. 6.24
Table 7.1 Correspondence Between Local Control Switch Positions and Label Settings..................... 7.5
Table 7.2 Correspondence Between Local Control Switch Types and Required Label Settings........... 7.6
Table 7.3 Definitions for Active Setting Group Indication Relay Word Bits SG1 Through SG6 ....... 7.18
Table 7.4 Definitions for Active Setting Group Switching
SEL
OGIC Control Equation Settings SS1–SS6................................................................. 7.18
Table 7.5 SEL
OGIC Control Equation Settings for Switching Active
Setting Group Between Setting Groups 1 and 4............................................................... 7.20
Table 7.6 Active Setting Group Switching Input Logic....................................................................... 7.22
Table 7.7 SEL
OGIC Control Equation Settings for Rotating Selector
Switch Active Setting Group Switching........................................................................... 7.23
Table 7.8 Mnemonic Settings for Metering on the Rotating Default Display ..................................... 7.41
Table 7.9 Mnemonic Settings for Breaker Wear Monitor Values on the Rotating Default Display .... 7.45
Table 7.10 Mnemonic Settings for Time-Overcurrent (TOC) Element Pickups
on the Rotating Default Display ....................................................................................... 7.47
Table 7.11 Mnemonic Settings for Time-Overcurrent (TOC) Element Pickups Using the
Same-Line-Label Format on the Rotating Default Display.............................................. 7.47
Table 8.1 Breaker Maintenance Information for a 25 kV Circuit Breaker ............................................ 8.2
Courtesy of NationalSwitchgear.com
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