Transcript DLP-D Digital Line Protection System

Industrial Systems
Digital Line Protection System





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 Z1 50
GE PROTECTION AND CONTROL
Malvern, PA
SET 1/Y
MODEL DLP3512CDH
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


Multiple Microprocessors (3)
Sampling Rate = 16/Cycle
I
V
ANALOG
TO
DIGITAL
CONVERTER
MicroP’s
&
EPROMS
SETTINGS
DISPLAY
RS232
RECURSIVE
FOURIER
TRANSFORM
PHASOR
QUANTITIES
EMULATION OF:
PHASE ANGLE
COMPARATORS,
AMPLITUDE
COMPARATORS,
ETC.
MEASURING
FUNCTIONS
LOGIC
OUTPUTS
3
MMI
Industrial Systems
DLP Application

For Three Phase or Single
Phase Tripping on any
Uncompensated
Transmission Line

Typical Operating Times are
3/4 to 1-1/2 Cycle

6 Protection Schemes
– Step Distance
– Directional Comparison
Blocking
– POTT
– PUTT
– Hybrid
– Zone 1 Extension
4
G
Industrial Systems
DLP Operating Times


SCR Tripping Times
PT Potential Source
50
Milliseconds
40
30
20
10
0.01
0.1
1
IZ-V
(Per Unit Volts)
5
10
Minimum
Maximum
Industrial Systems
DLP Operating Times


SCR Tripping Times
CVT Potential Source
50
Milliseconds
40
30
20
10
0.01
0.1
1
IZ-V
(Per Unit Volts)
6
10
Maximum
Minimum
Industrial Systems
Settings:

Scheme Selection
–
–
–
–
–
–

STEP
POTT
PUTT
HYBRID
BLOCKING (BLK1, BLK2, BLK3)
ZONE 1 EXTENSION
Zone 2 Ground Measuring
Unit Selection
– Distance
– Directional Overcurrent
– Distance + Directional O/C
7
Industrial Systems
Measuring Functions
DISTANCE
Phase
MHO
Ground
MHO-or-REACTANCE
Zone 2
(Pilot Zone)
MHO
MHO
Zone 3
MHO
MHO
Zone 4
(Reversible/Blocking)
MHO*
MHO
Zone 1
*Settable Offset
8
Industrial Systems
Measuring Functions
OVERCURRENT
(3|I0| - KT|I1|) IPT
(3|I0| - KB|I1|) IPB
IT
IB
FD
(3|I0| - KD|I1|) IDT
(3|I0|)
GTOC
- Pilot Trip
- Pilot Block
- Trip Supervision
- Block Supervision
- Fault Detector
- Inst. Direct Trip (Directional Control)
- Time Overcurrent (Directional Control)
DIRECTIONAL
NT
NB
9
- Trip
- Block
Industrial Systems
Inverse
Very Inverse
Ground TOC Curves

– Curves generated by GE’s TOC curve
editor
– Any curve from GE’s TOC curve
database
– The Existing Library of ASPEN
RelayEditorTM curves
– Any custom curve designed with
ASPEN RelayEditorTM
?
Custom
Extremely
Inverse
10
Custom Ground TOC Curves
From Several Sources
Definite
Time
Industrial Systems
Additional Protective Relay Features










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)




Single breaker reclosing
Programmable up to 2 reclose attempts
Manual Lockout Panel Switch
Additional Inputs
– Reclose Initiate, Reclose Inhibit, Reclose Cancel, Reclose Reset

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-1P
RI-3P
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
CC5
CC6
SELECT
SETTINGS
GROUP
0
RECEIVER 2
SELECT GROUP BIT 1
SELECT GROUP BIT 0
1
EXTERNAL TRIGGER
SELECT GROUP BIT 1
SELECT GROUP BIT 0
2
CONFIG. INPUT 1
SELECT GROUP BIT 1
SELECT GROUP BIT 0
DEFAULT
3
RECEIVER 2
STOP CARRIER
BLOCK PILOT TRIP
4
EXTERNAL TRIGGER
STOP CARRIER
BLOCK PILOT TRIP
5
CONFIG. INPUT 1
STOP CARRIER
BLOCK PILOT TRIP
6
RECEIVER 2
CONFIG. INPUT 2
CONFIG. INPUT 3
7
EXTERNAL TRIGGER
CONFIG. INPUT 2
CONFIG. INPUT 3
8
CONFIG. INPUT 1
CONFIG. INPUT 2
CONFIG. INPUT 3
USER
INPUT
15
CC4
Industrial Systems
Configurable Inputs / Adaptive Settings
CC5
CC6
0
0
1
1
0
1
0
1
Settings
Group
G1
G2
G3
G4
SETTINGS GROUP SWITCH
CONTACT NUMBER
1
1
2
2
3
3
4
4
G4
+
G2
G3
16
X
G3
X
G2
X
SG
1
SETTINGS GROUP
G1
G4
X
16SB1______
CC5
(bit 1)
CC6
(bit 0)
SG
3
+
-
G1
Industrial Systems
Outputs - Single Phase Models
DEDICATED
Trip (SCR or Contact, 2 per phase).....
BFI (2 per phase)...................................
RI-1P......................................................
Transmitter Key....................................
Zone 1 Extension Reset.......................
3 Pole Trip Enable................................
Reclose in Progress.............................
Alarm (Pwr Supply/Critical).................
SCADA..................................................
CONFIGURABLE
RI-3P (Configurable as pair)................
BKR Close
(Independent - Except Reclosing)......
Line Overload.......................................
Non-Critical Alarm................................
Reclose Cancel.....................................
17
6
6
2
2
1
1
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
CO1 IN1
CO1 IN2
CO1 IN3
CO1 IN4
CO1 IN5
.
.
CO1 IN8
=
=
=
=
=
=
.
.
=
2 (AND gate)
2 (Z1BG)
35 (GRD DIR TRIP)
50 (CONF. INPUT 1)
152 (“NOT” of CONF. INPUT 3)
0
0
Industrial Systems
SCADA Digital to Analog Interface


Provides Analog Output Proportional to Distance to
Fault Location in 0 to 1mA 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


AB
Z1
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

Voltages

Currents

Watts

Vars

Phase Angles

Breaker Status
Automatically Displayed and Updated
In Four Second Intervals on LED Display
22
Industrial Systems
Communications

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
[-]
Relay Functions
DLP COMMUNICATIONS 2.80
Local Functions Setup
Help

– Via RS232 & “DLP-LINK”
Software
– Front and Rear RS232 Ports
– 3 Level Password Protection
Login
Logout
Change access level
Hang up phone
Actions . . .
Information . . .
Settings . . .
Phone disconnected
24
Remote Access

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
STATION: MALVERN
LINE: LINE 1
UNIT ID: 0
DATE: 08/24/96
TIME: 10:57:51
MODEL NUMBER: DLP3512CDH
PROM VERSION NUMBER: V002.320B
Industrial Systems
Fault Report
Sample DLP
5512

– Currents
– Voltages
FAULT REPORT
Station ID: PLACE TRANSMISSION
Line ID: CREEK 115KV OCB 5512
TRIP DATE: 09/11/95
TRIP TIME: 15:16:10.295
FAULT TYPE: AB
TRIP TYPE: Z4
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

Post Fault
–
–
–
–

Currents
Voltages
Trip Targets
Operating Time
Selected Events
Industrial Systems
Present Values

Sample DLP
5072
PRESENT VALUES
Station ID: CREEK TRANSMISSION
Line ID: 115KV 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


09/18/95 14:23:44.455
IA: 001.16 A
IB: 001.26 A
IC: 001.26 A





Currents
Voltages
Angles
Watts
Vars
Breaker Status
Carrier Status
Active Setting Group
Industrial Systems
Sequence of Events
Sample DLP
5072

– Setting Changes
– Fault Data
– Status
Events
Station ID: CREEK TRANSMISSION
Line ID: 115KV 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

Diagnostic Self-Test Events
– Warning (Non-Critical Alarm)
– Failure (Critical Alarm)


Time Tagged to 1ms
Resolution
Last 100 Events Stored
Industrial Systems
Oscillography Triggers








29
None
Fault Detector
Any Zone 2
Any Zone 3
Any Zone 4
Out-of-Step
V1 Detector
External Contact Input
Industrial Systems
Flexible Oscillography Data Storage
# Faults
2
4
7
14


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



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



Draw-Out Modular Construction with Removable Door
Front Panel Power Switch
Information Access
– MMI
– RS232 Front & Rear (GE Modem)
– RS232 Rear (ASCII)



Target Clearing Through Door
Optional Mounting Flanges for L2 and KD cutouts and
Moveable Mounting Brackets
Self-Test Diagnostics
– Critical Alarm
– Non-Critical Alarm
33
Industrial Systems
Hardware and Packaging

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
5
* *
1 AMP Rated
5 AMP Rated
0
1
2
48 Vdc Battery Voltage
110/125 Vdc Battery Voltage
220/250 Vdc Battery Voltage
1
2
3
1
1
3
SCR Tripping Output
Relay Tripping Output
C
J
K
K
Three Phase Tripping, Without Recloser
Single Phase Tripping, Without Recloser
Single Phase Tripping, With Recloser
Three Phase Tripping, With Recloser
D
H
V
35
Revision Level
Horizontal Mounting
Vertical Mounting