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Figure No.
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1-1a
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1-2
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1-4
2
2-1
3-1
3-2
3-3
3-4
3-5
3-6
3-7
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3-9
3-10
3-11
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4
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A-1
A
A-2
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REL 352 Version 1.00
REL 352 Front Panel (photo) - - - - - - - - - - - - - - - - - - - - - - - - - 1-6
REL 352 56/64 kbps Digital Communication Direct Digital Interface (rear view) - 1-7
Layout of REL 352 Modules Within Inner And Outer Chassis - - - - - - - - - - 1-8
INCOM/PONI Communication Interface Device
Block Diagram of REL 352 Relay - - - - - - - - - - - - - - - - - - - - - - - - 1-10
REL 352 Outline Drawing - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-4
REL 352 Phase Comparison, Fault Recognition- - - - - - - - - - - - - - - - - 3-10
REL 352 Symmetrical Component Filter - - - - - - - - - - - - - - - - - - - - 3-11
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-11
Internal Fault - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-12
External Fault - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-13
Phase Comparison Logic - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-14
Pilot Trip Logic - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-15
Fault Detector - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-16
Change Detector - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-16
Mho Characteristics for Single Phase-to-ground Fault Detection - - - - - - - - - 3-17
Mho Characteristics for Three-Phase Fault Detection - - - - - - - - - - - - - - 3-18
Mho Characteristics for Phase-to-phase Fault Detection- - - - - - - - - - - - - 3-19
Loss of Potential Block Logic - - - - - - - - - - - - - - - - - - - - - - - - - - 3-20
Zone 2 And Zone 3 Back-up System - - - - - - - - - - - - - - - - - - - - - - 3-21
Optional Directional Overcurrent Units - - - - - - - - - - - - - - - - - - - - - 3-22
Blinders For The Out-of-step Logic - - - - - - - - - - - - - - - - - - - - - - - 3-23
OST And OSB Logic Diagram - - - - - - - - - - - - - - - - - - - - - - - - - 3-24
REL 352 Backplate- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-12
REL 352 Backplane Module Component Location Diagram - - - - - - - - - - - A-2
REL 352 Backplane/transformer Module PC Board - - - - - - - - - - - - - - - A-3
REL 352 Backplane/transformer Module Schematic- - - - - - - - - - - - - - - A-4
REL 352 Interconnect Module Component Location Diagram - - - - - - - - - - B-2
REL 352 Interconnect Module Schematic - - - - - - - - - - - - - - - - - - - - B-3
REL 352 Relay Output Module Component Location Diagram - - - - - - - - - - C-2
REL 352 Relay Output Module Schematic
REL 352 Relay Output Module Schematic
REL 352 Relay Output Module Schematic
REL 352 Optoisolated Input Module Component Location Diagram - - - - - - - D-2
REL 352 Optoisolated Input Module Schematic (sheet 1 of 2) - - - - - - - - - - D-3
REL 352 Optoisolated Input Module Schematic (sheet 2 of 3) - - - - - - - - - - D-4
List of Figures
(Sheet 1 of 3) - - - - - - - - - - - C-3
(Sheet 2 of 3) - - - - - - - - - - - C-4
(Sheet 3 of 3) - - - - - - - - - - - C-5
iv
Power Automation and Protection Division
(photo) - - - - - - - - - - - - 1-9
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