Alstom CBWatch3 User manual

CBWatch3
Circuit Breaker Monitoring
D1620EN01 © ALSTOM
2012 All rights reserved Information contained in this document is indicative only No
representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular pro
ject
This will depend on the technical an
d commercial circumstances It is provided without liability and is subject to change
without notice Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited
CBWatch 3 User Manual
D1936 EN 04

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CHANGE
HISTORY
04
Pierre CROZON
Dominique
LEGRAND
03
Pierre CROZON §2 7 §3 7 §3 8 §5-1 3 § 6-7 2 § 6-7 4
02
Pierre CROZON
01
Pierre CROZON
First issue
REV ESTABLISHED CHECKED APPROVED DATE MODIFICATIONS

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Table of Contents
Index of figures & pictures 7
Purpose of this document 10
Copyright 10
Safety instructions and warning 11
Handling electronic equipment 11
Unpacking 11
Storage 11
Set-up 11
1 General overview 12
1-1 Introduction 12
1-2 Product Description 12
1-3 Application 14
1-3.1 Optimisation of corrective actions, following a failure: 14
1-3.2 Implementation of condition based maintenance 14
1-4 Technical specifications 15
2 Description of equipment 16
2-1 Power supply 17
2-1.1 Description of module 17
2-2 Potential distributors 18
2-2.1 Description 18
2-2.2 Technical data 18
2-3 ProWatch Module 19
2-3.1 Description of module 19
2-3.2 Description of LEDs 20
2-3.3 Description of Modbus RS485 connector 21
2-3.4 Self-test functionality 21
2-3.5 K1 & K2 programmable output contacts 22
2-4 DI16 Module 23
2-4.1 Description 23
2-4.2 Allocation of terminals 24
2-4.3 Connections to terminals 25
2-5 AI8 Module 26
2-5.1 Description 26
2-5.2 Allocation of terminals 27
2-5.3 Connections to terminals 28
2-6 RTD8 Module 29
2-6.1 Description 29
2-6.2 Allocation of terminals 30
2-6.3 Connections to terminals 30

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2-7 DO16 Module 31
2-7.1 Description 31
2-7.2 Allocation of terminals 32
2-7.3 Interface relay 33
2-8 Common indicators on Input/Output modules 34
2-8.1 Description of LEDs 34
3 Description of sensors 35
3-1 SF
6
gas pressure and temperature sensor 35
3-1.1 Description 35
3-1.2 Technical characteristics of the sensor 35
3-2 Open/close command detection sensor array 36
3-2.1 Description 36
3-3 DC current measurement sensor 37
3-3.1 Description 37
3-3.1 Technical characteristics of the sensor 37
3-4 Control Circuit Continuity 38
3-4.1 Description 38
3-4.2 Connections 38
3-5 DC voltage measurement sensor 39
3-5.1 Description 39
3-5.2 DC converter connections 39
3-5.1 DC Voltage Measurement - Connection principle 40
3-6 Primary current measurement 41
3-6.1 Option 1 - Description 41
3-6.2 Option 1 - Connections 41
3-6.3 Option 1 - Connection principle 41
3-6.4 Option 2 - Description 42
3-6.5 Option 2 - Converter connections 43
3-6.6 Option 2 - Connection principle 43
3-7 AC current measurement sensor 44
3-7.1 Description 44
3-7.2 Technical characteristics of the sensor 44
3-8 AC voltage measurement sensor 45
3-8.1 Description 45
3-8.2 Technical characteristics of the sensor 45
3-9 Pneumatic pressure sensor 46
3-9.1 Description 46
3-9.2 Technical characteristics of the sensor 46
3-10 Travel sensor 47
3-10.1 Description 47

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3-10.2 Technical characteristics of the sensor 47
3-11 Temperature sensor 48
3-11.1 Description 48
3-11.2 Technical characteristics of the sensor 48
4 Human-Machine Interface (HMI) 49
4-1 TCP/IP Network card configuration 49
4-2 Connection to the CBWatch3 52
4-3 CBWatch3 access level 53
4-4 CBWatch3 network connection 54
4-5 System Information 54
5 Description of the monitoring functions 55
5-1 SF
6
Gas Monitoring 56
5-1.1 General Description 56
5-1.2 Gas Measurements 56
5-1.3 Threshold alarms 59
5-1.4 Long term trend alarm before L1 60
5-1.5 Short term trend alarm before L2 62
5-1.6 Liquefaction alarm 62
5-1.7 Sensor communication error counter 62
5-1.8 Alarm Summary 63
5-2 Control Circuit Monitoring 64
5-2.1 General description 64
5-2.2 Presence of DC supply 64
5-2.3 Continuity of circuit 64
5-2.4 Coil Integrity 64
5-2.5 Alarm summary 66
5-3 Operation Monitoring - Retrofit 67
5-3.1 General Description 67
5-3.2 Auxiliary contacts status 67
5-3.3 Number of operations 67
5-3.4 Operating times 68
5-3.5 Timing alarms 69
5-3.6 Discordance between poles 70
5-3.7 Timing compensation 71
5-3.8 Operation Graphs 73
5-4 Operation Monitoring – New build* 75
5-4.1 General Description 75
5-4.2 Travel sensor kinematics* 75
5-4.3 Contact separation speed* 76
5-4.4 Bounces and the final position* 77
5-4.5 Travel during a CO cycle* 78
5-4.6 Auxiliary contact switches* 78
Arcing 80

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5-5 Contact Wear Monitoring 80
5-5.1 General Description 80
5-5.2 Sampling of the current before and during the interruption 80
5-5.3 Cumulative electrical wear 81
5-5.4 Alarm summary 82
5-6 Stored Energy Motor Monitoring 83
5-6.1 General Description 83
5-6.2 Motor run time 83
5-6.3 Motor voltage 83
5-6.4 Motor current 84
5-7 Spare Analogue Channels Monitoring 86
5-7.1 General Description 86
5-8 Temperature monitoring 87
5-8.1 Ambient 87
5-8.2 Monitoring heating of cabinets 87
Monitoring 88
5-9 Alarms 88
5-9.1 Alarm visualisation in HMI 88
5-9.2 Relay alarms from ProWatch module 88
5-9.1 Relay alarms with optional alarm modules DO16 88
5-9.2 Relay alarms assignment 88
6 Communication 90
6-1 Protocols 90

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I NDEX OF FI URES & PICTURES
Figure 1 – Circuit-breaker and monitoring overview 12
Figure 2 – CBWatch3 minimum configuration dimension 13
Figure 3 – CBWatch3 maximum configuration dimension 13
Figure 4 – CBWatch3 composition 16
Figure 5 – CBWatch3 Power supply 17
Figure 6 – Potential distributors 18
Figure 7 – ProWatch module 19
Figure 8 – ProWatch LED description 20
Figure 9 – ProWatch Connector 21
Figure 10 – ProWatch pin assignment 21
Figure 11 – Contact rating 22
Figure 12 – DI16 Module 23
Figure 13 – DI16 Module terminals 24
Figure 14 – AI8 Module 26
Figure 15 – AI8 Module terminals 27
Figure 16 – RTD8 Module 29
Figure 17 – RTD8 Module terminals 30
Figure 18 – DO16 Module 31
Figure 19 – DO16 Module terminals 32
Figure 20 – DO16 Relays 33
Figure 21 – Module LED description 34
Figure 22 – Pressure and temperature sensor 35
Figure 23 – HMI - Pressure and temperature sensor 35
Figure 24 – Command detection sensor 36
Figure 25 – Command detection sensor terminals assignment 36
Figure 26 – DC current sensor 37
Figure 27 – DC current sensor technical data 37
Figure 28 – TCW sensor 38
Figure 29 – TCW Connections 38
Figure 30 – DC voltage converter 39
Figure 31 – DC Power connections 40
Figure 32 – Primary current split-core CT 41
Figure 33 – Primary current split-core CT connections 41
Figure 34 – Connections for Option 1 41
Figure 35 – Primary current closed CT 42
Figure 36 – Primary current closed CT converter 42
Figure 37 –Connections for Option 2 43
Figure 38 – AC current sensor 44
Figure 39 – AC current sensor technical data 44
Figure 40 – AC voltage sensor 45
Figure 41 – AC voltage sensor technical data 45
Figure 42 – Pressure sensor 46

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Figure 43 – Pressure sensor technical data 46
Figure 44 – Travel sensor 47
Figure 45 – Travel sensor wiring 47
Figure 46 – Temperature sensor (PT100) 48
Figure 47 – Temperature sensor technical data 48
Figure 48 – Network card configuration step 1 49
Figure 49 – Network card configuration step 2 50
Figure 50 – Network card configuration step 3 51
Figure 51 – Connection to the CBWatch3 52
Figure 52 – CBWatch3 log in 52
Figure 53 – CBWatch3 network connection 54
Figure 54 – HMI – Product information 54
Figure 55 – Gas type configuration screen 56
Figure 56– Thermodynamic law illustration 57
Figure 57 – HMI – Gas monitoring bar 58
Figure 58 – HMI – Gas monitoring psi 58
Figure 59 – HMI – Short and long term curves 59
Figure 60 – Gas thresholds 60
Figure 61 – Threshold setup 60
Figure 62 – Future long term time horizon setup 61
Figure 63 – HMI – Linear density extrapolation 61
Figure 64 – Future short term time horizon setup 62
Figure 65 – HMI – Sensor communication error counter 62
Figure 66 – HMI – Gas alarms 63
Figure 67 – HMI – DC voltage for source 1 and 2 64
Figure 68 – Current through opening or closing coil 65
Figure 69 – Drop-down list of previous archives 65
Figure 70 – HMI – Coil currents 65
Figure 71 – HMI – Coil current measurement settings 66
Figure 72 – HMI – Coil current measurement settings 66
Figure 73 – HMI – Control circuit alarms 66
Figure 74 – HMI – Auxiliary contact position 67
Figure 75 – Number of opening/closing operation 67
Figure 76 – HMI – Operation counter alarms 67
Figure 77 – Operating time measurement 68
Figure 78 – HMI – Last operation measurements 69
Figure 79 – HMI – Opening operations time alarms 69
Figure 80 – HMI - Operating time discordances 70
Figure 81 – HMI – Opening operations discrepancy alarms 70
Figure 82 – HMI – Timing compensation 71
Figure 83 – Operating time temperature compensation 72
Figure 84 – HMI – Operation graphs for opening 73
Figure 85 – HMI – Operation charts for closing 74
Figure 86 – Operating time measurement 75
Figure 87 – Displacement sensor 76
Figure 88 – Travel conversion table 76

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Figure 89 – Speed of separation of the contacts 76
Figure 90 – Monitoring of the final position 77
Figure 91 – Monitoring the bounces 77
Figure 92 – Travel during a CO cycle 78
Figure 93 – Monitoring the auxiliary contacts 78
Figure 94 – HMI – Auxiliary contact timing 79
Figure 95 – Current before and during interruption 80
Figure 96 – Interrupted current value 81
Figure 97 – HMI – Electrical wear weighting table 81
Figure 98 – HMI – Opening electrical wear settings 82
Figure 99 – HMI – Part of last closing measurement 83
Figure 100 – HMI – Part of additional channels 83
Figure 101 – Current of the motor during rearming 84
Figure 102 – Drop-down list of previous archives 84
Figure 103 – HMI – Motor current measurement 84
Figure 104 – HMI – Motor current alarm setting 85
Figure 105 – Additional analogue channels configuration 86
Figure 106 – HMI – Additional analogue channels 86
Figure 107 – HMI - Ambient temperature 87
Figure 108 – HMI – Temperature sensors 87
Figure 109 – HMI alarm example: Gas alarms 88
Figure 110 – HMI – Gas alarm settings 89
Figure 111 – HMI – Operation alarms 89

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P URPOSE OF THIS DOCUMENT
This document is the user manual It provides readers with information on the CBWatch3 system, GE's
solution for monitoring high-voltage circuit-breakers This manual is intended to help users understand,
install, use and maintain the CBWatch3
C OPYRI HT
GE does not give users of this manual any right to reproduction, modification or translation, whatever the
means and in whatever country
The law dated 11 March 1957 authorises only, firstly, "copies or reproduction strictly reserved for the private
use of the person who made the copies providing that they are not intended for collective use", and secondly,
analyses and short citations through examples and illustrations "Any publication or reproduction of the whole
or part without the agreement of the author or his/her legal successors is illegal" (Articles 40 and 41 of the law
dated 11 March 1957)
This publication or reproduction by any means whatsoever constitutes a fraudulent operation punishable by
articles 425 and following of the criminal code