Industrial Systems Digital Line Protection System n n

Industrial Systems Digital Line Protection System n n n 1 Microprocessor Based Protection, Control and Monitoring System Waveform Sampling Proven Protection Economical Ease of Retrofit

Industrial Systems DLP-D Enhancements ASCII SUBSET DLP-C Repackaged Three Phase & Single Phase Tripping g Digital Line Protection GREEN: PROTECTION ON RED: CHECK STATUS TRIP AC Z 1 50 GE PROTECTION AND CONTROL Malvern, PA SET 1/Y MODEL DLP 3512 CDH Ratings: In 5 AMPS Vn 120 Vac Freq 60 Hz GEK 99300 INF COMM Unbalance Alarm Detection 2 Continuous Monitor Alarm 2 4 5 6 ACT 7 8 9 END PRT 0 New Packaging 3 RU High Horizontal or Vertical ON 3/N CLR . Power 2 Shot Recloser Optional Proven Design 1 0 OFF ENT SCADA Involved Phases Indication Standard Carrier Start Options

Industrial Systems Overview of DLP Operation n n Multiple Microprocessors (3) Sampling Rate = 16/Cycle I V ANALOG TO DIGITAL CONVERTER Micro. P’s & EPROMS SETTINGS DISPLAY RS 232 RECURSIVE FOURIER TRANSFORM PHASOR QUANTITIES EMULATION OF: PHASE ANGLE COMPARATORS, AMPLITUDE COMPARATORS, ETC. MEASURING FUNCTIONS LOGIC OUTPUTS 3 MMI

Industrial Systems DLP Application n For Three Phase or Single Phase Tripping on any Uncompensated Transmission Line n Typical Operating Times are 3/4 to 1 -1/2 Cycle n 6 Protection Schemes – Step Distance – Directional Comparison Blocking – POTT – PUTT – Hybrid – Zone 1 Extension 4

Industrial Systems DLP Operating Times n n 5 SCR Tripping Times PT Potential Source

Industrial Systems DLP Operating Times n n 6 SCR Tripping Times CVT Potential Source

Industrial Systems Settings: n Scheme Selection – – – n STEP POTT PUTT HYBRID BLOCKING (BLK 1, BLK 2, BLK 3) ZONE 1 EXTENSION Zone 2 Ground Measuring Unit Selection – Distance – Directional Overcurrent – Distance + Directional O/C 7

Industrial Systems Measuring Functions DISTANCE Zone 1 Phase Ground MHO-or-REACTANCE Zone 2 (Pilot Zone) MHO Zone 3 MHO Zone 4 MHO* MHO (Reversible/Blocking) *Settable Offset 8

Industrial Systems Measuring Functions OVERCURRENT (3|I 0| - KT|I 1|) (3|I 0| - KB|I 1|) IPB - Pilot Trip - Pilot Block IT - Trip Supervision IB - Block Supervision FD - Fault Detector (3|I 0| - KD|I 1|) IDT - Inst. Direct Trip (Directional Control) (3|I 0|) GTOC - Time Overcurrent (Directional Control) 9 DIRECTIONAL IPT

Industrial Systems Inverse Very Inverse Ground TOC Curves n – Curves generated by GE’s TOC curve editor – Any curve from GE’s TOC curve database – The Existing Library of ASPEN Relay. Editor. TM curves – Any custom curve designed with ASPEN Relay. Editor. TM ? Custom Extremely Inverse 10 Custom Ground TOC Curves From Several Sources Definite Time

Industrial Systems Additional Protective Relay Features n n n n n 11 Out-of-Step Blocking PT Fuse Failure Line Pickup (Close Into Fault) Remote Open Detector Line Overload Adaptive Reach (Zone 1 Ground Reactance - Supervising MHO) Current Unbalance Alarm Continuous Monitor Alarm Detects Internal Relay Changes if FD is Not Picked Up Carrier Start Options for Improved Coordination in Blocking Schemes with Other Relays. Trip Bus Check when Settings are Changed

Industrial Systems Recloser (Optional) n n Single breaker reclosing Programmable up to 2 reclose attempts Manual Lockout Panel Switch Additional Inputs – Reclose Initiate, Reclose Inhibit, Reclose Cancel, Reclose Reset n Additional Outputs – Zone 1 Reach Reset, Lockout Alarm, Reclose in Progress 12

Industrial Systems Inputs - Single Phase Models IA, IB, IC VAG, VBG, VCG RI-1 P RI-3 P Receiver 1 Output Contact Receiver 2 Output Contact* Stop Carrier* Block Pilot Tripping* (3) 52/b Contacts (w/ Recloser) (3) 52/b Contacts (w/o Recloser) Reclose Inhibit Reclose Cancel Reclose Reset 3 Pole Trip Enable * Configurable Inputs 13

Industrial Systems Inputs - Three Phase Models IA, IB, IC VAG, VBG, VCG (6) Digital Inputs (Contact Converters) (2) 52/b Contacts Receiver 1 Output Contact Receiver 2 Output Contact* Stop Carrier* Block Pilot Tripping* RI** Reclose Inhibit** Reclose Cancel** Reclose Reset** * Configurable Inputs ** Inputs for Recloser 14

Industrial Systems Configurable Inputs (1701) CONCCI SELECT SETTINGS GROUP CC 4 0 CC 6 RECEIVER 2 SELECT GROUP BIT 1 SELECT GROUP BIT 0 1 DEFAULT CC 5 EXTERNAL TRIGGER SELECT GROUP BIT 1 SELECT GROUP BIT 0 2 CONFIG. INPUT 1 SELECT GROUP BIT 1 RECEIVER 2 STOP CARRIER SELECT GROUP BIT 0 3 USER INPUT BLOCK PILOT TRIP 4 EXTERNAL TRIGGER STOP CARRIER BLOCK PILOT TRIP 5 CONFIG. INPUT 1 STOP CARRIER BLOCK PILOT TRIP 15 6 RECEIVER 2 CONFIG. INPUT 3 CONFIG. INPUT 2

Industrial Systems Configurable Inputs / Adaptive Settings CC 5 CC 6 0 0 1 1 0 1 Settings Group G 1 G 2 G 3 G 4 SETTINGS GROUP SWITCH CONTACT NUMBER 1 2 3 4 G 4 + G 2 G 3 16 G 4 G 3 X X X G 2 X SG 1 SETTINGS GROUP G 1 16 SB 1______ CC 5 (bit 1) CC 6 (bit 0) SG 3 + - G 1

Industrial Systems Outputs - Single Phase Models DEDICATED Trip (SCR or Contact, 2 per phase). . . BFI (2 per phase). . . . . RI-1 P. . . . Transmitter Key. . . . . Zone 1 Extension Reset. . . 3 Pole Trip Enable. . . . Reclose in Progress. . . . Alarm (Pwr Supply/Critical). . . . SCADA. . . CONFIGURABLE RI-3 P (Configurable as pair). . . . BKR Close (Independent - Except Reclosing). . . Line Overload. . . . . Non-Critical Alarm. . . . Reclose Cancel. . . . . 17 6 6 2 2 1 1 5 2 2 1 1 1

Industrial Systems Outputs - Three Phase Models DEDICATED Trip (SCR or Contact). . . . BFI. . . . Transmitter Key. . . . . Alarm (Pwr Supply/Critical). . . . SCADA. . . . Reclose in Progress (recloser models only). . . Lockout Alarm & Reach Reset (recloser models only). . . CONFIGURABLE RI. . . . BKR Close (Independent). . . . . Line Overload. . . . . Non-Critical Alarm. . . . Reclose Cancel. . . . . 18 2 2 2 1 5 1 2 2 2 1 1 1

Industrial Systems Configurable Outputs EXAMPLE: Configure the BC-1 Output to Close when Zone 1 BG, GRD DIR TRIP, and CONF. INPUT 1 are “ON” and CONF. INPUT 3 is “OFF”. (1801) (1802) (1803) (1804) (1805) (1806) (1809) 19 CONOUT 1 CO 1 IN 2 CO 1 IN 3 CO 1 IN 4 CO 1 IN 5. . CO 1 IN 8 = = =. . = 2 (AND gate) 2 (Z 1 BG) 35 (GRD DIR TRIP) 50 (CONF. INPUT 1) 152 (“NOT” of CONF. INPUT 3) 0 0

Industrial Systems SCADA Digital to Analog Interface n n Provides Analog Output Proportional to Distance to Fault Location in 0 to 1 m. A DC or 0 to 5 Vdc Output (Selectable) Four (4) Contact Outputs Provide Fault Type Example: A B C G 20 Phase A to Neutral Fault Indication

Industrial Systems TRIP n n AB Z 1 44 Target (Current Actuated) Fault Location – Algorithm = Lumped Parameter Differential Equation Solution – Uses Phasor Quantities (Output of Fourier Algorithm) as Inputs – Eliminates the Effect of Fault Resistance 21

Industrial Systems Present Value Reporting n Voltages n Currents n Watts n Vars n Phase Angles n Breaker Status Automatically Displayed and Updated In Four Second Intervals on LED Display 22

Industrial Systems Communications n Local MMI (Standard) – 2 Level Password Protection » MASTER » SETTINGS – 16 LED Alphanumeric Display – Keypad with 20 Keys – Separate Function Keys for » Settings » Action » Information – Alarms – Status LED 23

Industrial Systems Communications [-] DLP COMMUNICATIONS 2. 80 Local Functions Setup Help Relay Functions n – Via RS 232 & “DLP-LINK” Software – Front and Rear RS 232 Ports – 3 Level Password Protection Login Logout Change access level Hang up phone Actions. . . Information. . . Settings. . . Phone disconnected 24 Remote Access n Access to: – – – Present Values Fault Report Sequence of Events Oscillography Manual Breaker Control Relay Settings

Industrial Systems Remote Access - Rear ASCII Port ASCII PORT HELP SCREEN STATION: MALVERN LINE: LINE 1 UNIT ID: 0 DATE: 08/24/96 TIME: 10: 57: 51 STATUS VALUES MODEL EVENTS SHOWSET STLINID FAULT FSTATUS LOGIN LOGOUT - Request DLP Status - Request Present Values - Request PROM and MODEL numbers - Request event report - Request setting group information - Request station and line ID - Request fault report - Request status of all faults - Login request - Logout request INFORMATION ONLY 25 MODEL NUMBER: DLP 3512 CDH PROM VERSION NUMBER: V 002. 320 B

Industrial Systems Fault Report Sample DLP 5512 n – Currents – Voltages FAULT REPORT Station ID: PLACE TRANSMISSION Line ID: CREEK 115 KV OCB 5512 TRIP DATE: 09/11/95 TRIP TIME: 15: 16: 10. 295 FAULT TYPE: AB TRIP TYPE: Z 4 DISTANCE: **** MILES OPERATING TIME: 01496 PREFAULT Ia: 038. 40 A Ib: 028. 80 A Ic: 057. 60 A In: 007. 20 A FAULT Ia: 057. 60 A Ib: 048. 00 A Ic: 050. 40 A In: 014. 40 A Va: 066. 0 KV Vb: 066. 0 KV Vc: 066. 1 KV 15: 16: 10. 295 TRIP SIGNALS ON 15: 16: 12. 119 TRIP SIGNALS RESET 15: 16: 12. 119 TRIP CIRCUIT #1 NOT ENERGIZED 26 Prefault n Post Fault – – n Currents Voltages Trip Targets Operating Time Selected Events

Industrial Systems Present Values n Sample DLP 5072 PRESENT VALUES Station ID: CREEK TRANSMISSION Line ID: 115 KV OCB -001 DEGS 119 DEGS -119 DEGS IN: 000. 03 A WATTS: 056. 6 MW BREAKER 1: CLOSED PLC #1 SIGNAL: OFF PLC #1 STATUS: N/A VA: 066. 3 V VB: 066. 3 V VC: 066. 3 V **** DEGS 000 DEGS 121 DEGS -119 DEGS VARS: 003. 1 MVAR BREAKER 2: N/A PLC #2 SIGNAL: OFF PLC #2 STATUS: N/A STOP CARRIER: OFF SETTING GROUP NUMBER: 1 BLOCK PILOT TRIP: OFF 27 n n 09/18/95 14: 23: 44. 455 IA: 001. 16 A IB: 001. 26 A IC: 001. 26 A n n n Currents Voltages Angles Watts Vars Breaker Status Carrier Status Active Setting Group

Industrial Systems Sequence of Events Sample DLP 5072 n Events Station ID: CREEK TRANSMISSION Line ID: 115 KV OCB 07/25/95 19: 06: 21. 121 TRIP SIGNALS RESET 07/25/95 19: 06: 21. 121 TRIP CIRCUIT #1 NOT ENERGIZED 07/25/95 19: 06: 21. 048 TRIP SIGNALS ON 07/25/95 19: 06: 21. 038 OSC TRIGGER 05/31/95 12: 16: 42. 091 TRIP CIRCUIT #1 MONITOR ALARM ON 05/31/95 12: 16: 41. 915 TRIP CIRCUIT #1 MONITOR ALARM ON 05/31/95 12: 16: 41. 879 REMOTE COMM - SETTINGS CHANGE DONE 05/31/95 12: 16: 30. 720 REMOTE COMM - SETTINGS CHANGE STARTED 05/31/95 12: 13: 48. 392 REMOTE COMM - PASSWORD CHANGED 05/31/95 12: 11: 53. 383 REMOTE COMM - PASSWORD CHANGED 05/31/95 12: 10: 37. 847 UNBALANCED SYSTEM DETECTION ALARM ON 05/31/95 12: 10: 29. 930 REMOTE COMM - PASSWORD CHANGED 05/31/95 12: 09: 35. 302 FUSE FAILURE ALARM ON 05/31/95 12: 09: 35. 175 LOCAL - SETTINGS CHANGE DONE 05/31/95 12: 09: 30. 826 LOCAL - SETTINGS CHANGE STARTED 05/31/95 12: 07: 22. 109 UNBALANCED SYSTEM DETECTION ALARM ON 05/31/95 12: 06: 00. 042 FUSE FAILURE ALARM ON 05/31/95 12: 06: 00. 000 SSP BOARD: QUEUES REINITIALIZED 05/31/95 12: 05: 30. 210 FAIL - TRIP BUS CHECK 05/31/95 12: 05: 30. 177 FUSE FAILURE ALARM ON 28 Operational Events – Setting Changes – Fault Data – Status n Diagnostic Self-Test Events – Warning (Non-Critical Alarm) – Failure (Critical Alarm) n n Time Tagged to 1 ms Resolution Last 100 Events Stored

Industrial Systems Oscillography Triggers n n n n 29 None Fault Detector Any Zone 2 Any Zone 3 Any Zone 4 Out-of-Step V 1 Detector External Contact Input

Industrial Systems Flexible Oscillography Data Storage # Faults 2 4 7 14 n n 30 Stored Cycles 72 36 18 9 Pre-fault Cycles Selectable from 1 to 8 Settings and Fault Report are stored with Oscillography Data

Industrial Systems Oscillography Data n n n Internal and External Oscillography Triggering ASCII File Format (Readable by EXCEL/LOTUS/DL-DATA) For Each Sample 4 Currents (IA, IB, IC, IN) 3 Voltages (VA, VB, VC) 6 Flag Groups Digital Inputs Outputs Phase Zone Flags Breaker Status and Gnd. Zone Flags Protection Logical Input Flags Output Status of Protection Timers 31

Industrial Systems 32

Industrial Systems Hardware and Packaging n n n Draw-Out Modular Construction with Removable Door Front Panel Power Switch Information Access – MMI – RS 232 Front & Rear (GE Modem) – RS 232 Rear (ASCII) n n n Target Clearing Through Door Optional Mounting Flanges for L 2 and KD cutouts and Moveable Mounting Brackets Self-Test Diagnostics – Critical Alarm – Non-Critical Alarm 33

Industrial Systems Hardware and Packaging n Magnetics are easily accessible, but not part of Drawout Assembly – Improves reliably by eliminating CT shorting bars 34

Industrial Systems Nomenclature Selection Guide DLP * * 1 1 AMP Rated 5 5 AMP Rated * * 0 48 Vdc Battery Voltage 1 110/125 Vdc Battery Voltage 2 220/250 Vdc Battery Voltage SCR Tripping Output 1 2 Relay Tripping Output 3 1 35 C Three Phase Tripping, Without Recloser J Single Phase Tripping, Without Recloser *