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

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S AFETY INSTRUCTIONS AND WARNIN
NOTE:
electrostatic discharges (ESD) can cause irreparable damage to the CBWatch3
system
Observe the necessary safety precautions when handling components which are
vulnerable to electrostatic discharge (EN 61340-5-1 and EN-61340-5-2 as well as IEC
61340-5-1 and IEC 61340-5-2)
RISK OF ELECTRIC SHOCK, EXPLOSION OR ELECTRICAL ARC
-
Switch off power before assembly, disassembly, cabling or maintenance
-Check that the product's power supply voltage is compatible with that of the
power supply
-
The installation, use and maintenance of CBWatch3 and related products
described in this manual must be limited exclusively to personnel who are
qualified and trained in the operation of monitoring systems
-GE shall not be liable in the case of improper use of the product
Incorrect application of these instructions may entail death or serious injury
Handling electronic equipment
The CBWatch3 contains electrical and electronic components which may still be charged after disconnection
The user may suffer electric shocks if all the necessary precautions and instructions are not followed before
handling or opening the casing
Before use, check that all the connectors and cables are properly connected to CBWatch3
Unpacking
In spite of the general robustness of the CBWatch3, it requires handling precautions before assembly When
you receive the CBWatch3, check that no damage has occurred during transport In case of any claim, contact
the carrier and advise GE
Storage
If you do not install the CBWatch3 as soon as it is received, store it in a place sheltered from dust and damp,
in its original packaging If the packaging box contains a desiccant packet, keep it in place
However, the humidity absorption agent will lose its effectiveness if the unprotected packaging box is open
to the surrounding atmosphere or bad weather
Storage temperature: from -40°C to +70°C
Set-up
The CBWatch3 can be installed in a control cabinet paired with a high-voltage circuit breaker
Its position must be chosen for easy inspection, which implies easy access to the connections of the CBWatch3
in case it is required

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1 ENERAL OVERVIEW
1-1 Introduction
This manual is intended to provide the reader with general information on the various functions use in
monitoring high-voltage circuit breakers and how the CBWatch3 works
All the CBWatch3 monitoring options are detailed in this user manual Depending on which CBWatch3
configuration has been purchased and installed, all the options described in this document may not be
available
1-2 Product Description
All of the sensors are connected to CBWatch3 supervision module The interface for communication with the
CBWatch3 is implemented through an Ethernet connection and a standard web browser
Figure 1 – Circuit-breaker and monitoring overview

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The CBWatch3 module is usually installed inside the circuit-breaker's low-voltage electrical control cabinet or
in a separate enclosure installed next to it, mounted on 35 x 7 5 mm DIN rails The various sensors are then
installed on the circuit-breaker
The minimum configuration dimensions are given below:
Figure 2 – CBWatch3 minimum configuration dimension
The maximum configuration dimensions are given below:
Figure 3 – CBWatch3 maximum configuration dimension
We recommend connecting the shielding for the sensor cables to earth at least at one of the two ends

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1-3 Application
The CBWatch3 constantly assesses the state of the circuit breaker It signals remotely, and in real-time, any
anomalies to the asset maintenance and/or supervision service CBWatch3 can thus give advance warning of an
impending issue and thus minimise the risk of “failure to operate”
Remote diagnostics can also help to optimise and reduce maintenance costs, principally through:
-Optimisation of corrective actions following a failure,
-Implementation of condition based maintenance
1-3.1 Optimisation of corrective actions, following a failure:
In case a failure is detected on a high-voltage circuit breaker, the system automatically generates an alarm to the
sub-station's supervision system This alarm may be relayed towards the duty person by an out-of-hours duty
management system The maintenance service is thus immediately informed of the fault It can use the analysis
provided to it by the remote diagnostic system to define the best action to undertake It can decide an immediate
action or plan a postponed action in full knowledge of the facts It can prepare the spare parts and tools that will be
necessary and send the technician to the site who will be best able to resolve the fault
1-3.2 Implementation of condition based maintenance
The continuous monitoring of the circuit breaker's main operating parameters enables any anomaly to be
immediately detected Above all, through calculation of trends concerning these parameters, this monitoring can
predict and therefore give advance warning of these anomalies Condition based maintenance consists of not
performing the maintenance operation as long as the remote diagnostic system has not detected any deterioration
in performance The maintenance service therefore has a tool enabling them to only intervene when the circuit-
breakers really needs it

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1-4 Technical specifications
Installation:
Installation of the supervision system in the electrical cabinet
Modules are mounted on a DIN rail
Environment:
Ambient temperature: -40°C to +70°C
Electromagnetic compatibility as per the following standards:
- IEC 60068
- IEC 1000-4-4
- IEC 61850 8 1
- IEC 61869
- IEC 55022
Power supplies
90 – 240 Vac/Vdc
Tolerance: -30 % to +15 %
Consumption: 30 VA maximum
Reliability:
High level of reliability and availability due to continuous self-monitoring of electronic modules and sensors
Standard:
CBWatch3 is compliant with the recommendations of IEEE C37 10 1

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2D ESCRIPTION OF EQUIPMENT
Note: All the modules described hereafter in this section may not be present in your CBWatch3 configuration
①② ③ ④ ⑤ ⑥ ⑦ ⑧
Figure 4 – CBWatch3 composition
1 Power supply
2 ProWatch Module
3 DI16 Module
4 AI8-1 Module
5 AI8-2 Module
6 AI8-3 Module
7 RTD8 Module
8 DO16 Module

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2-1 Power supply
2-1.1 Description of module
The power supply provides the 24 V DC necessary to the ProWatch and the various sensors The 24VDC is supplied
by a standard AC-DC/DC converter which can accept an input voltage between: 90 and 240 V AC and DC and provide
an output voltage that can be adjusted between 18 V and 29 5 V using a potentiometer located at the front
The 24 V DC output is protected against short-circuits and overloading, with a fault indicator alarm and automatic
restoration after eliminating the fault
The automatic overall protection against short circuits (SFB: Selective Fuse Breaking) at each level enables the 24
V DC to be distributed in the system without requiring any fuses
1 AC input
2 DC output
3 POWER BOOST, coupling output, active
4 DC-OK, coupling output, active
5 DC output OK without potential
6 18VDC potentiometer 29 5 VDC
7 LED "DC OK"
8 LED "BOOST"
9 Adapter for universal mounting rail UTA
107/30
Figure 5 – CBWatch3 Power supply
Characteristics
•Rapid triggering of standard protection circuit-breakers thanks to the new dynamic power reserve
•Reliable starting of difficult loads thanks to the POWER BOOST static power reserve
•Preventive monitoring of operation
•High operational reliability thanks to a high MTBF > 500,000 h
•long duration protection against brown-outs >20 ms
•high dielectric rigidity up to 300 V AC

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2-2 Potential distributors
2-2.1 Description
In order to facilitate the supply of 24Vdc power to the various CBWatch3 sensors, we use potential distributors
These module allows to distribute a single 24Vdc power supply voltage potential input to many devices We use two
different colors to distinguish the plus and minus of the 24Vdc signal Blue for -24Vdc and grey for +24Vdc
Figure 6 – Potential distributors
2-2.2 Technical data
Potential distributors:
•Nom voltage: 250 V
•Nominal current: 17 5 A,
•Cross section: 0 14 mm² - 2 5 mm²,
•Connection type: Push-in connection
•Number of positions: 2
•Number of level : 4
•Number of connections: 16
•Rated surge voltage : 4 kV
•Width: 8 3 mm, Length: 64 mm

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2-3 ProWatch Module
2-3.1 Description of module
Figure 7 – ProWatch module
1 Bluetooth antenna (optional)
2 Ethernet connector
3 LED
4 Earth connection
5 Power supply terminals
6 Modbus RS485 connector
7 2 programmable output contacts

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2-3.2 Description of LEDs
LEDs States Operating
RDY
Continuous
green
Self
-
test control (Pro Watch) equals OK + GAS sensors present,
in accordance with the configuration (number of sensors,
possibly none)
Flash Green
Starting
Continuous
orange
Self
-
test OK but at least one GAS sensor not present
(bad RS485
link, HS sensor,…)
Continuous red
Self
-
test NOK
LNK1/2
Continuous
green
Link Ethernet #1 OK
Link Ethernet #2 OK
Flashes green/off
Link Ethernet #1 OK
Link Ethernet #2 NOK
Or conversely
off
No Ethernet link established
B
F
See Phoenix
Contact
description
Bus fault
Error in module bus = led "D" in the FIBO MDK To be connected
directly to the IP FIBO output in its future version
PF
See Phoenix
Contact
description
Peripheral fault
Module peripheral error = led "E" in the FIBO MDK To be
connected directly to the IP FIBO output in its future version
SYNC
Continuous
green
Synchro 61850 established (1588 or 1pps)
Flash Green
Synchro in the process of acquisition
Off
No synchro, application without 61850
Orange
No synchro,
application with 61850
W
Continuous
green
Bluetooth active
Fleetingly off
Exchange of frames
Continuously off
Bluetooth inactive
Figure 8 – ProWatch LED description