Type B Vital Relays - Alstom

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Theory of Operation 2.4.3. Magnetic-Stick Line Relay Magnetic-stick relays are commonly used in switch control and indication circuits. Magnetic-stick or "polar stick" relays operate by responding to a change in the direction of the current flow through their coils. The armature stays in its last operated position when energy is cut off. The armature is polarized by two permanent magnets. Internal nominal 150-ohm resistors can be connected by plugboard jumpers for operation on 2, 10 or 20 volts. Figures 2–17 through 2–20 show relay operation and different contact closures resulting from armature movement. Figure 2–21 depicts the normal wiring connections. R PUSHER N NORMAL CONTACTS OPEN S N NO VOLTAGE ARMATURE Figure 2–17. Magnetic-Stick Relay, Reverse Position P1457, Rev. Nov/07 2–18 <strong>Alstom</strong> Signaling Inc.
Theory of Operation R N NORMAL CONTACTS CLOSED S N RECOMMENDED VOLTAGE TO POSITION RELAY NORMAL Figure 2–18. Armature Picked Up with Normal Polarity NORMAL CONTACTS CLOSED R N S N NO VOLTAGE Figure 2–19. Armature Held Up By Permanent Magnet's Attraction P1457, Rev. Nov/07 2–19 <strong>Alstom</strong> Signaling Inc.
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Type B Vital Relays Copyright © 19
Page 5 and 6: LIST OF EFFECTIVE PAGES P1457, Type
Page 7 and 8: PREFACE NOTICE OF CONFIDENTIAL INFO
Page 9 and 10: ABOUT THE MANUAL This manual is int
Page 11 and 12: MANUAL SPECIAL NOTATIONS In the Als
Page 13 and 14: Topic TABLE OF CONTENTS Page 1. SEC
Page 15 and 16: Topic TABLE OF CONTENTS (CONT.) Pag
Page 17 and 18: Description LIST OF FIGURES (CONT.)
Page 19 and 20: Description LIST OF TABLES Page Tab
Page 21 and 22: General Description 1. SECTION 1 -
Page 23 and 24: General Description 1.2.2. Identifi
Page 25 and 26: General Description 1.2.3. Relay Pr
Page 27 and 28: General Description 1.2.4. Mounting
Page 29 and 30: General Description The registratio
Page 31 and 32: General Description 1.2.7.2. Test T
Page 33 and 34: General Description 16 26 36 46 56
Page 35 and 36: General Description 1.2.10. Relay C
Page 37 and 38: Theory of Operation 2. SECTION 2 -
Page 39 and 40: Theory of Operation 2.2. RELAY CONT
Page 41 and 42: Theory of Operation 2.2.2.1. Contac
Page 43 and 44: Theory of Operation 2.2.2.3. Heavy-
Page 45 and 46: Theory of Operation 2.2.3. Coils A
Page 47 and 48: P1457, Rev. Nov/07 2-11 Alstom Sign
Page 49 and 50: Theory of Operation 2.3. BIASED-NEU
Page 51 and 52: Theory of Operation 2.4. DC LINE RE
Page 53: Theory of Operation S NO VOLTAGE N
Page 57 and 58: Theory of Operation 2.4.4. Microchr
Page 59 and 60: Theory of Operation 2.4.4.2.2. Appl
Page 61 and 62: Theory of Operation Group Space- Fr
Page 63 and 64: Theory of Operation 2.4.4.3.1. Appl
Page 65 and 66: Theory of Operation 2.5. DC SPECIAL
Page 67 and 68: Theory of Operation (FRONT VIEW) 1E
Page 69 and 70: Theory of Operation 2.5.4. Switch-O
Page 71 and 72: Theory of Operation TRACK CIRCUIT E
Page 73 and 74: Theory of Operation 2.5.6. Code Rat
Page 75 and 76: Theory of Operation 2.5.7. Code-Fol
Page 77 and 78: Theory of Operation Figure 2-38. VT
Page 79 and 80: Theory of Operation Figure 2-41 sho
Page 81 and 82: Theory of Operation VANE CONTACTS P
Page 83 and 84: Theory of Operation EDDY CURRENT IN
Page 85 and 86: Theory of Operation In each snapsho
Page 87 and 88: Installation 3. SECTION 3 - INSTALL
Page 89 and 90: Installation Table 3-2. B Relay Ins
Page 91 and 92: Installation Table 3-2. B Relay Ins
Page 93 and 94: Installation Table 3-3. Microchron
Page 99 and 100: Installation Table 3-5. AC Microchr
Page 101 and 102: Installation Table 3-5. AC Microchr
Page 103 and 104: Preventive Maintenance 4. SECTION 4
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Preventive Maintenance 4.3. PREVENT
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Preventive Maintenance Table 4-2. T
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Preventive Maintenance Table 4-3. V
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Preventive Maintenance 4.5. ELECTRI
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Preventive Maintenance 4.5.1. AC Li
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Preventive Maintenance 4.5.3. Biase
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Preventive Maintenance 4.5.5. Code
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Preventive Maintenance 4.5.7. Micro
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Preventive Maintenance 4.5.9. Polar
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Preventive Maintenance 4.5.11. Swit
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Troubleshooting 5. SECTION 5 - TROU
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Troubleshooting Table 5-1. Troubles
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Troubleshooting DC RELAY DOES NOT R
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Troubleshooting AC VANE RELAY DOES
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Troubleshooting MICROCHRON II TIMER
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Corrective Maintenance 6. SECTION 6
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Corrective Maintenance Table 6-2. B
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Corrective Maintenance Table 6-2. B
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Corrective Maintenance Table 6-4. T
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Corrective Maintenance NOTE For det
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Corrective Maintenance 6.4.4. Curre
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Corrective Maintenance 6.5. MECHANI
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Corrective Maintenance Table 6-10.
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Corrective Maintenance 6.5.2. Mecha
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Page 157 and 158:
Corrective Maintenance 6.5.3. Micro
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Parts Catalog 7. SECTION 7 - PARTS
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Parts Catalog 7.4. B1 BIASED-NEUTRA
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Parts Catalog Table 7-2. B1 Neutral
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Parts Catalog 7.5. B1 CODE-RESPONSI
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Parts Catalog 46F Figure 7-3. B1 Co
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Parts Catalog Table 7-3. B1 Code-Re
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Parts Catalog Table 7-3. B1 Code-Re
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Parts Catalog 7.7. B1 ELECTRONICALL
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Parts Catalog Table 7-4. B1 Slow Pi
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Parts Catalog Table 7-5. B2 Neutral
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Parts Catalog 7.9. B2 BIASED-NEUTRA
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Parts Catalog Table 7-6. B2 Biased-
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Parts Catalog Table 7-7. B2 Vane Re
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Parts Catalog 7.11. B2 AC VANE RELA
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Parts Catalog Table 7-8. B2 Vane Re
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Parts Catalog Figure 7-10. B2 Code
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Parts Catalog Table 7-9. B2 Code Ra
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Parts Catalog Table 7-9. B2 Code Ra
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Parts Catalog FRONT VIEW 1 2 3 4 5
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Parts Catalog Table 7-10. B2 Microc
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Parts Catalog 7.14. B2 AC MICROCHRO
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Parts Catalog Table 7-11. B2 AC Mic
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Parts Catalog 7.15. TYPE VTB POLAR-
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Parts Catalog Table 7-12. VTB Polar
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Parts Catalog Table 7-12. VTB Polar
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P1457, Rev. Nov/07 7-51 Alstom Sign
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P1457, Rev. Nov/07 7-53 Alstom Sign
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Parts Catalog MARKED END OF MAGNET
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Parts Catalog NOTE 1 When ordering
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Parts Catalog , 3B 31 E 25A 25B 30
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Parts Catalog Table 7-16. B Relay P
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Parts Catalog Table 7-16. B Relay P
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Parts Catalog 7.18. B RELAY REGISTR
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Parts Catalog Table 7-17. B Relay R
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Relay Engineering Data (ED) sheet L
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Glossary B. APPENDIX B - GLOSSARY B
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Glossary Overpressure - • Dead We
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Tools and Kits C. APPENDIX C - TOOL
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Tools and Kits 1 A B AAR CRIMP TOOL
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Tools and Kits C.3. SHOP TEST RACK
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Tools and Kits The vane relay test
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FOR QUESTIONS AND INQUIRIES, CONTAC
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Type B Vital Relays - Alstom

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