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CONTENTS

1 REFERENCES.................................................................................................................... 42 PURPOSE OF THE MANUAL ............................................................................................53 ENVIRONMENT DESCRIPTION........................................................................................5

3.1 Configurations for use of the Man-Machine interface.............................................................5

3.2 PC environment ....................................................................................................................63.3 Interface with CBWatch-2......................................................................................................6

4 INSTALLATION OF THE CBW2TOOL APPLICATION......................................................... 64.1 Installation ............................................................................................................................64.2 Configuration of the CBW2Tool application...........................................................................64.3 Deinstallation........................................................................................................................8

5 OPERATION .................................................................................................................. 105.1 Starting up the application ..................................................................................................105.2 Closing the application .......................................................................................................115.3 Connection/disconnection of CBWatch-2.............................................................................12

5.3.1 Creation/modification of an entry in the list ..................................................................135.3.2 Deletion of an entry from the list...................................................................................13

5.3.3 Connection..................................................................................................................145.3.4 Disconnection .............................................................................................................. 145.4 CBWatch-2 configuration....................................................................................................15

5.4.1 New configuration .......................................................................................................155.4.2 Reading the configuration of a CBWatch ......................................................................155.4.3 Transfer of the configuration to CBWatch .....................................................................155.4.4 Saving the configuration...............................................................................................155.4.5 Restoration of a configuration.......................................................................................165.4.6 Printing the configuration .............................................................................................165.4.7 Configuration of SF6 gas monitoring............................................................................ 175.4.8 Configuration of operations monitoring........................................................................185.4.9 Configuration of travel curve monitoring.......................................................................205.4.10 Configuration of switching monitoring..........................................................................21

5.4.11 Configuration of monitoring of spring recharging .........................................................245.4.12 Configuration of hydraulic command monitoring.......................................................... 255.4.13 Configuration of the monitoring of auxiliary circuits and supervision..............................255.4.14 Configuration of miscellaneous parameters..................................................................275.4.15 Configuration of factory parameters............................................................................. 285.4.16 Configuration of alarms generated by CBWatch-2........................................................ 29

5.5 Access to CBWatch-2 event records .....................................................................................315.5.1 Reading event records from CBWatch-2 .......................................................................315.5.2 Saving event records ....................................................................................................315.5.3 Restoration of event records .........................................................................................325.5.4 Display of event records ...............................................................................................335.5.5 Details of an SF6 short term sample event ....................................................................35

5.5.6 Details of an SF6 long term sample event.....................................................................365.5.7 Details of an SF6 fault event......................................................................................... 375.5.8 Details of a closing operation.......................................................................................385.5.9 Details of an opening operation ...................................................................................395.5.10 Details of spring rewinding........................................................................................... 415.5.11 Details of re-inflating on operation...............................................................................425.5.12 Details of re-inflating without operation ........................................................................435.5.13 Details of a hydraulic fault............................................................................................445.5.14 Details of auxiliary and self test faults ...........................................................................45

5.6 Access to CBWatch-2 measurements and alarms in progress ...............................................465.6.1 Display of SF6 alarms and measurements in progress................................................475.6.2 Display of "opening" alarms and measurements............................................................485.6.3 Display of "closing" alarms and measurements in progress............................................495.6.4 Display of "switching" alarms and measurements in progress ........................................ 505.6.5 Display of spring operation alarms and measurements in progress ............................... 51

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5.6.6 Display of hydraulic alarms and measurements in progress .......................................525.6.7 Display of auxiliary circuits alarms and measurements in progress ...........................535.6.8 Display of self test alarms in progress ........................................................................54

5.7 On-line help ....................................................................................................................... 55

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1 REFERENCES

[1] CBWatch-2 Users ManualReference: D1087EN/01

[2] CBWatch-2 Modbus Interface Reference ManualReference: D1104EN/01

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2 PURPOSE OF THE MANUAL

The manual [1] describes the CBWatch-2 circuit breaker modular monitoring system.

CBWatch-2 has communications interfaces for connection to a PC microcomputer. The CBW2Toolapplication installed on this PC gives access to CBWatch-2 configuration and measurement data.

The purpose of this manual is to describe the use of the CBW2Tool application.

3 ENVIRONMENT DESCRIPTION

3.1 Configurations for use of the Man-Machine interface

There are 3 possible configurations for management of CBWatch-2 by the CBW2Tool application:

temporary connection via local RS232 port

permanent connection via MODBUS network temporary connection via modem and MODBUS network.

Configuration 1:Temporary local

Configuration 2:Permanent MODBUS

Configuration 3:Temporary via MODEM andMODBUS

RS232CBWatch-2

Sensors

MMI

MODBUS

(n modulesin network)

CBWatch-2

Sensors

MMI

CBWatch-2

Sensors

MMI

MODEM

MODEM

MODBUS(n modules

in network)

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3.2 PC environment

The CBW2Tool application is run on a PC micro-computer, type Pentium II 233 Mhz with 8 MB RAM,equipped with an RS232 or RS485(1)serial link or a modem(2)dedicated to communications withCBWatch-2 and a colour screen with a minimum 800x600 display. Portable computers can be used.

The PC must handle the following baud rates:- 9600 baud for an RS232- 4800 baud to 38400 baud for an RS485 or a modem.

The CBW2Tool application is designed to operate in a Windows 95, NT or higher environment (32 bitapplication).

3.3 Interface with CBWatch-2

The various input/output parameters for CBWatch-2 are accessible from a host system, via an RS232 or

RS485 serial link using Modbus protocol (RTU mode), with or without modem.

The network interface is type RS485 (2 wires); the communications parameters can be modified by thelocal serial link within the following limits: speed : 1200 to 38400 baud data bits : 8 parity : even, odd or none stop bit : 1.

The local serial interface is type RS232; the communications parameters are fixed: speed : 9600 baud data bits : 8 parity : none stop bit : 1.

4 INSTALLATION OF THE CBW2TOOL APPLICATION

4.1 Installation

The application is supplied on a CD-ROM. To install the CBW2Tool application proceed as follows: start your computer and start up Windows put the CD-ROM in the drive using file manager, run the "setup.exe" program and follow the instructions.

The installation program asks you for the disk unit and main application folder (" C:\ProgramFiles\CBWatch-2 Tool\" by default) and creates a "CBW2Tool" program group in Windows "Start Programs".

Before continuing, please read the "readme.txt" file carefully (if it exists). This file contains last minuteinformation which could not be included in this manual.

4.2 Configuration of the CBW2Tool application

(1)this interface can be provided by an additional RS232C RS485 conversion module.

(2)the modem may be internal or external to the PC; in all cases it is seen by the system as an RS232 port.

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Certain operational parameters for the application can be adjusted (e.g. timeout). These parametersare in Windows format and are located in the system register base(HKEY_LOCAL_MACHINE\SOFTWARE\Alstom T&D\CBW2Tool\). They can be edited using the systemregister editor "regedit.exe" or "regedit32.exe".

All operational parameters are taken into account at application start-up; for a modification to be

effective, it is therefore necessary to stop and restart the CBW2Tool application.

The CBW2Tool application is configured during installation; the modification of certainparameters by an inexperienced user could give rise to system malfunctions.

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4.3 Deinstallation

To deinstall the application, go into the configuration panel.

Then select the "Add/Delete programs" icon.

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Select CBW2Tool and click on the Add/Delete button to start up the deinstallation procedure.

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5 OPERATION

5.1 Starting up the application

First check that the computer is switched on. If not switch on the central unit, then the screen.From the menu "Start - Programs - CBWatch-2 Tool", click on "CBW2Tool".

note: - "CBW2Tool Help" can be used to consult on-line help for the application (cf. chapter 5.6).- "Readme" allows the user to consult last minute information which could not be included in thismanual.Start-up of the application is followed by an initialisation phase. During this phase, the following screenis displayed:

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On completion of the initialisation phase, the application goes into the operating phase and the mainscreen is displayed:

5.2 Closing the application

The application can be closed in three ways:

by selection of the item "File - Exit" in the menu on the main screen by clicking on the box in the main window by simultaneously pressing the "Alt" and "F4" keys.

If configuration or event record elements require saving, a confirmation dialogue box appears:

Click on: " Yes" to save the data " No" to close the application without prior saving " Cancel" to return to the previous screen.

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5.3 Connection/disconnection of CBWatch-2

Before any exchange with CBWatch-2, the connection between the remote device and the applicationmust be established. To do this, the application presents, via the "File Connect" menu, a list ofaddressable CBWatch.

This list shows:

the name (or description) of the remote CBWatch

the Modbus address of the device, the communication method (RS232, RS485 or Modem) and the physical port on the PC in

use (COM1 to COMxx),

the configuration of the serial port in use (baud rate, parity, number of stop bits) together with thephone number in the case of a Modem.

The presence of a modem is detected automatically. Modem configuration takes place from theWindows "configuration panel" or from the application using the "Setup" button.

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5.3.1 Creation/modification of an entry in the list

You can add a connection to the list or modify the parameters for an existing connection by activatingthe "Create" and "Modify" buttons respectively (the connection to be modified must first be selected in thelist).

The following dialogue box is then displayed. In the case of a modification request, the currentparameters are displayed. For creation, the entry fields are blank:

The operating procedure for this screen is as follows:1. specify the name (or description) of the remote CBWatch: chain of alphanumeric characters

(minimum 1, maximum 20).2. specify the Modbus address for the device: hexadecimal value from 01H to F7H (1 to 247)

inclusive.3. indicate the communications mode (RS232, RS485 or Modem) and the physical port on the PC

used (COM1 to COMxx).4. indicate the configuration of the serial port used (baud rate, parity, number of stop bits) and the

phone number in the case of a Modem (in standard HAYES mode without separator). Thecommunication parameters are fixed in the case of an RS232 (9600 baud, no parity, 1 stop bit). In

all cases data is exchanged in 8 bits.5. confirm the entry by activating the "Apply" button. The "Cancel" button may be used to return to

initial values.

5.3.2 Deletion of an entry from the list

To delete an entry use the "Delete" button (the connection to be deleted must first be selected in the list).A confirmation request is presented to the user, then the connection is deleted from the list.

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5.3.3 Connection

Connection is by selecting a given item in the list, or selecting it then activating the Connect button.A dialogue box informs the user of operations in progress. Throughout these operations (modemdialling, opening of the communication port, etc.) no action is allowed.On establishment of the connection, the dialogue box and the list of addressable CBWatch disappears;

the status of the connection is then shown in the status bar at the bottom of the main applicationwindow.

5.3.4 Disconnection

Disconnection of the connected CBWatch is by activation of the File - Disconnect menu. A request forconfirmation is then presented to the user, then the connection with CBWatch is closed.A dialogue box informs the user of operations in progress. Throughout these operations (completion ofan exchange in progress, closure of a communications port, etc.) no action is allowed.On closure of the connection, the dialogue box disappears; the status of the connection is then shownin the status bar located at the bottom of the main application window.

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5.4 CBWatch-2 configuration

Via the "Configuration" menu, the application allows management of configuration parameters for aCBWatch. These configuration parameters may be:

initialised by default via the menu "Configuration - New" read from a CBWatch interrogated via the menu "Configuration - Read from CBWatch" (the

connection must first be established)

read from a local backup in the form of an Excel file: in this case the user must indicate the file tobe loaded.

The screens then displayed allow creation, consultation, modification and printing of the configurationof a CBWatch-2.

5.4.1 New configuration

The user can enter a new configuration based on values by default.This operation is performed by activating the menu "Configuration - New".

5.4.2 Reading the configuration of a CBWatch

The parameters are read by activating the menu "Configuration - Read from CBW" (the connection mustfirst be established). A dialogue box showing the progress of the transfer is then displayed.

5.4.3 Transfer of the configuration to CBWatch

The configuration parameters are written to a CBWatch by activating the menu "Configuration - Write toCBW" (the connection must first be established). A dialogue box showing the progress of the transfer isthen displayed.

5.4.4 Saving the configuration

The configuration is saved by activating the menu "Configuration - Save to file..." when a configurationor event records screen is displayed.

The following dialogue box is then shown:

The name of the saved file and its location must be specified. The saved file in Excel 5 format (.xls) andcan be consulted using Excel.

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5.4.5 Restoration of a configuration

A configuration can be restored from a previously saved file (cf. chapter 5.4.4) by activating the menu"Configuration - Load from file..." when a configuration or event records screen is displayed.

The following dialogue box is then shown:

The name of the saved file and its location must be specified.

5.4.6 Printing the configuration

All or part of the configuration of a CBWatch can be printed via the menu "Configuration - Print".

The following dialogue box is then displayed:

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The operating procedure for this screen is as follows: Select the check boxes corresponding to the configuration elements to be printed if required, enter comments in the entry field provided for this purpose confirm printing by activating the "Preview" button; a "print preview" window is then displayed so

that you can preview the selected prints before they are actually printed (using the "Print" button inthe latter window). The "Cancel" button can be used to return to the previous screen.

5.4.7 Configuration of SF6 gas monitoring

The "SF6" tab on the configuration screen gives access to the gas monitoring parameters contained inthe circuit breaker.

The operating procedure for this screen is as follows:

1. indicate the number of volumes to be monitored: none, 1 or 3; if "none" is specifiedthe following parameters are not accessible.

2. indicate the type of sensor: pressure + temperature, or density.

3. indicate gas composition: pure SF6, SF6 + CF4 mixture or SF6 + N2 mixture; in thecase of a mixture, indicate the SF6 ratio.

4. specify the alarm thresholds, by value (0) and hysteresis (0), for:

overpressure: indicates that a quantity of gas is too high and that there is a riskof overpressure on heating

alarm 1: less than the previous threshold, indicating that the circuit breaker is stillcapable of fulfilling its function but that filling is required

alarm 2: less than the previous threshold, indicating that the circuit breaker is nolonger capable of fulfilling its function.

5. specify the short and long term advance warning delays (whole numbers in theranges [20 to 1200] minutes and [20 to 200] days respectively. Access to the shortterm delay requires monitoring of the 3 SF6 volumes. The short term delaycorresponds to the length of time the advance warning on alarm 2 appears before

the appearance of alarm 2. The long term delay corresponds to the length of timethe advance warning on alarm 1 appears before the appearance of warning alarm1.

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6. specify the pressures measured by the SF6 sensor at 4 mA and 20 mA

7. confirm the entries by activating the "Apply" button. To return to the initial values usethe "Cancel" button.

5.4.8 Configuration of operations monitoring

The "Operations" tab on the configuration screen gives access to monitoring parameters for circuitbreaker operations.


1. indicate the number of operating mechanisms to be monitored: none, 1 or 3; if nooperating mechanism is specified the following parameters are not accessible.

2. specify the two limits for the number of opening and closing operations.

3. indicate the type of sensors installed: position sensors (auxiliary switches) travel curve transducers, with optionnal check auxiliary switches.

4. enter the parameters related to opening operations:

a. indicate the number of opening coils: 1 or 2.b. specify min and max times t1, corresponding to the time between the arrival of

the command on the opening coil and the time when the circuit breaker leavesthe "closed" position.

c. specify min and max times t2, corresponding to the time between the arrival ofthe command on the opening coil and the time when the circuit breaker arrivesin the "open" position.

d. specify min and max times t2-t1, corresponding to the transition time from the"open" to "closed" position on the circuit breaker.

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e. where there are 3 poles, specify for each of the previous times the maximumdeviation between poles (discordance).

f. indicate whether operating times should be compensated according to thetemperature; this is achieved by the use of an entered and/or imported curve (11points).

g. indicate whether operating times should be compensated according to the

command voltage; this is achieved, for each coil, either by the use of an enteredand/or imported curve (11 points) or by the use of a max value for the samecurve.

5. enter the parameters relating to closing operations:

a. specify min and max times t1, corresponding to the time between the arrival ofthe command on the opening coil and the time when the circuit breaker leavesthe "open" position.

b. specify min and max times t2, corresponding to the time between the arrival ofthe command on the opening coil and the time when the circuit breaker arrivesin the "closed" position.

c. specify min and max times t2-t1, corresponding to the transition time from the

"open" to "closed" position on the circuit breaker.d. where there are 3 poles, specify for each of the previous times the maximumdeviation between poles (discordance).

e. indicate whether operating times should be compensated according to thetemperature; this is achieved by the use of an entered and/or imported curve (11points).

f. indicate whether operating times should be compensated according to thecommand voltage; this is achieved, for each coil, either by the use of an enteredand/or imported curve (11 points) or by the use of a max value for the samecurve.

6. confirm the entries using the "Apply" button. To return to the initial values use the"Cancel" button.

A compensation curve is imported by activating the button to the right of the corresponding list. Adialogue box is then presented allowing the user to specify the Excel-compatible file to be imported.

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The imported file must have the following format:

Y-coordinate X-coordinate

y-coordinate value 1 x-coordinate value 1




i.e.:

1 pair [y-coordinate, x-coordinate] of numeric values per line (2 distinct columns). The y-coordinatescolumn is not used by the application; it enables the user to situate the x-coordinate values

no page headers or footers file saved in CSV format (separator ";").

5.4.9 Configuration of travel curve monitoring

The "Trav. Curv." tab on of the configuration screen gives access to travel curve monitoring parameters.Access to this tab requires the presence of a travel sensor.


1. for analysis of the opening curve:

a. specify the start of opening and end of opening positions (these positions areused to measure t1 (reaction time ) and t2 (operating time), see section 5.4.8)

b. specify the end of stroke positions (min and max).c. specify the rebound factor at end of stroke (min and max).d. In case of monitoring of auxiliary switches, specify the switching position for type

a and type b switches (min and max).

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e. specify the minimum threshold for the speed of separation of contacts and theassociated separation position.

2. for analysis of the closing curve:

a. specify the start of operation and end of operation positions (these positions areused to measure t1 (reaction time ) and t2 (operating time), see section 5.4.8).

b. specify the end of stroke positions (min and max).c. specify the rebound factor at end of stroke (min and max).d. In case of monitoring of auxiliary switches, specify the switching position for type

a and type b switches (min and max).e. specify minimum travel during an open-close cycle.

3. specify the correction curve for sensor kinematics (120 points) giving the travel ofcontacts in the chamber according to the stroke at sensor level. The points on thiscurve may be entered and/or imported from an Excel compatible file (cvs format).

4. specify the sensor output current at 0 % and 100 % travel.

5. use the "Apply" button to confirm the entries and return to the previous screen. Toreturn to the previous screen without memorising the modifications, use the "Cancel"

button.

A compensation curve is imported by activating the button to the right of the corresponding list. Adialogue box is then presented allowing the user to specify the file (Excel compatible) to be imported.







i.e.: 1 pair [y-coordinate, x-coordinate] of numeric values per line (2 distinct columns). The y-coordinates

column is not used by the application; it enables the user to situate the x-coordinate values no page headers or footers file saved in CSV format (separator ";").

5.4.10 Configuration of switching monitoring

CBWatch calculates cumulative totals for the square of the current cut by arcing contacts. These"cumulated squared amperes" give an indication of the condition of the circuit breaker in terms ofelectrical wear.

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In addition, CBWatch-2 generates an alarm if arcing time is too long.

The "Switching" tab on the configuration screen gives access to monitoring parameters for switching.Access to this tab is only possible if at least 1 pole is monitored in the operations tab.


1. indicate the number of poles to be monitored: none or 3; if no pole is specified thefollowing parameters are not accessible.

2. specify the value (> 0) of the current transformer nominal primary current formeasurement of the current going through the circuit breaker (the secondary currentis standard and fixed at 5 A. In the case of a CT with 1 A secondary, 5 turns inauxiliary CT will be used for current measurement.

3. specify maximum arcing time (0).

4. specify the maximum electrical wear (in A2.s) and the 2 threshold of alarms onelectrical wear (in %).

5. where monitoring of the circuit breaker uses position sensors (auxiliary switches, seesection 5.4.8), specify the delay between switching the sensor from closed position(type a) and the instant of contact separation.

6. supply the correction factor curve for electrical wear according to the intensity to beused; the points on this curve can be entered and/or imported from an Excelcompatible file.


A compensation curve is imported by activating the button to the right of the corresponding list. Adialogue box is then presented allowing the user to specify the Excel-compatible file to be imported.

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i.e.: 1 pair [y-coordinate, x-coordinate] of numeric values per line (2 distinct columns). The y-coordinates

column is not used by the application; it enables the user to situate x-coordinate values no page headers or footers

file saved in CSV format (separator ";").

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5.4.11 Configuration of monitoring of spring recharging

CBWatch measures spring recharging time (rewinding motor running time).The "Spring" tab on the configuration screen gives access to spring recharging monitoring parameters.Access to this tab is only possible if at least 1 pole is monitored in the operations tab.


1. indicate the number of operating mechanisms to be monitored: none, 1 or 3; if"none" is specified the following parameters are not accessible.

2. specify the min and max rewinding times, corresponding to the running time of therewinding motor.


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5.4.12 Configuration of hydraulic command monitoring

The "Hydraulic" tab of the configuration screen gives access to monitoring parameters for the hydrauliccommand for the circuit breaker.


1. indicate the number of operating mechanisms to be monitored: none, 1 or 3. If"none" is specified the following parameters are not accessible.

2. indicate the sensors installed on the command.

3. if the "pump start" contact is present:

a. specify maximum pump running times for operation types O, C, OC, CO, OCO.b. specify the number of measurements for calculating the average hydraulic

leakage rate.c. specify the maximum hydraulic leakage rate.

d. specify the pressure thresholds for pump starting and stopping.e. specify the min and max values for average efficiency of the motor/pump unit.

4. if the hydraulic pressure sensor is present:

a. specify the relative pressure measured by the sensor at 4 mA and 20 mA

b. specify the locking thresholds, in value (0) and hysteresis (0), for operationsO, C, OCO.


5.4.13 Configuration of the monitoring of auxiliary circuits and supervision

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The "Auxiliary" tab on the configuration screen gives access to the monitoring parameters for auxiliarycircuits and supervision.

The operating procedure for this screen is as follows:1. indicate the presence (or not) of an ambient temperature probe at circuit breaker

command level; if present, indicate the min and max limits for ambient temperature.

2. indicate the number of temperature measurement points (0 to 4). For eachmeasurement point, specify the min and max limits.

3. indicate the presence (or not) of a coil monitoring relay; if present, specify themaximum delay for "reset" of the relay indicating a coil in bad condition.

4. indicate the presence (or not) of an AC voltage presence sensor; if present, specifythe maximum time for absence of voltage before an alarm.

5. confirm the entries using the "Apply" button. To return to the initial values use the

"Cancel" button.

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5.4.14 Configuration of miscellaneous parameters

The "Misc" tab on the configuration screen gives access to miscellaneous parameters for CBWatchconfiguration.

-


1. indicate the presence (or not) of a local display on CBWatch; if present, indicate theunits displayed(1)by CBWatch for the following data:

temperature (C by default) pressure (MPa by default) density (absolute kPa by default) speed (m/sec by default)

position (mm by default).2. specify the parameters for CBWatch RS485 port:

CBWatch Modbus address: from 1 to 247 baud rate: 4800, 9600, 19200 or 38400 bits/s parity: none, even or odd number of stop bits: 1 or 2.

3. specify CBWatch supply voltage:

alternative continuous; in this case indicate the value (> 0).

4. confirm the entries using the "Apply" button. To return to the initial values use the

"Cancel" button.(1)

These choices do not have any effect on the units displayed by the CBW2Tool application.

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5.4.15 Configuration of factory parameters

The "Specials" tab on the configuration screen gives access to the factory-set parameters for CBWatch.Apassword must be entered for display of this screen.


1. specify measurement times and coefficients:

minimum coil signal duration maximum rebound time for auxiliary switches minimum wait time between two operational sequences travel sensor correction curve filter coefficient rapid open-close operation time rapid close-open operation time

primary current cancellation threshold SF6 gas pressure acquisition period.

2. timeouts:

t1 and t2 times for opening and closing the circuit breaker rewinding time running time for the re-inflating pump.

3. use the "Apply" button to confirm the entries and return to the previous screen. Toreturn to the previous screen without memorising the modifications, use the "Cancel"button.

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The shaded information is not accessible for modification and is nevertransmitted to CBWatch-2. This information concerns:

the CBWatch-2serial numberthe following calibration parameters:

number of points at output from A/D converter corresponding to SF6 pressuresensors at 4 mA and 20 mA

number of points at output from A/D converter corresponding to travel sensors at4 mA and 20 mA

number of points at output from A/D converter corresponding to temperaturesensors at given Tmin and Tmax

number of points at output from A/D converter corresponding to hydraulicpressure sensors at 4 mA and 20 mA

number of points at output from A/D converter corresponding to current sensorat 2.5 mA

number of points at output from A/D converter corresponding to voltage sensorat Vmin (0 V) and Vmax.

5.4.16 Configuration of alarms generated by CBWatch-2

The "Alarms" tab on the configuration screen gives access to CBWatch-2 alarm managementparameters.


1. indicate the type of alarm by CBWatch-2; this acknowledgement may be:

impossible entered on CBWatch keypad

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entered by external push button: a TOR input allows the connection of a contactfor this purpose.

2. for each type of alarm:

indicate whether the alarm requires acknowledgement (Ack column.) indicate associations with LEDs (L1 to L7 corresponding to LED 1 to 7) and relays

(R1 to R4 corresponding to relays 1 to 4) by checking the corresponding boxes specify the value of the filter to be applied to the alarm (0 to 15). This filter may

be a timer or counter type, depending on the alarm concerned; in the case of atimer alarm, the filter takes into account n times the sampling period for themeasurement concerned.

3. use the "Apply" button to confirm the entries and return to the previous screen. Toreturn to the previous screen without memorising the modifications, use the "Cancel"button.

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5.5 Access to CBWatch-2 event records

CBWatch-2 regularly measures the main characteristics of the HT circuit breaker monitored. Thesemeasurements and the calculations performed are archived by CBWatch-2 in internal "stacks". Thehistorical record thus formed can be used to produce estimates and statistics for forecasting purposes(protective measures, anticipation of maintenance operations, etc.).

The application allows consultation and printing of CBWatch-2 event records via the "Event Records"menu. The event records may come from: a CBWatch-2 interrogated (the connection must first be established),

a local saved file: the user must then indicate the file to be loaded.

5.5.1 Reading event records from CBWatch-2

This operation is performed by activating the menu "Event records - Read from CBW2" (the connectionmust first be established). A dialogue box showing the progress of the transfer is then displayed.When the event records are read, the configuration of their associated CBWatch-2 is also loaded.

5.5.2 Saving event records

Event records are saved by activating the menu "File - Save Event records" when a screen of eventrecords is displayed. The associated configuration is also saved.The following dialogue box is then shown:

The name of the saved file and its location must be specified. The saved file is in Excel 5 format (.xls)and can be consulted from Excel 5. The file containing the associated configuration is located in thesame place, with the given name suffixed by extension "CFG".

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5.5.3 Restoration of event records

Restoration of event records from a previously saved file (cf. chapter 5.5.2) is by activating the menu"Event-Records - Load from file" when an event records screen is displayed.The following dialogue box is then shown:

The name of the saved file and its location must be specified. The file must be in Excel 5 format (.xls).

When a file of event records is loaded, the configuration of the associated CBWatch-2 is also loaded.

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5.5.4 Display of event records

After reading event records, either directly from CBWatch-2, or from a previously saved file, thefollowing screen is displayed:


1. define the filter on the events to be displayed from:

SF6 short term trend SF6 long term trend SF6 faults closing operations opening operations spring operation hydraulic command on operation hydraulic command without operation hydraulic faults faults on auxiliary circuits and self tests.

2. define the filters on the time interval for events to be displayed.

3. confirm the filters using the "Apply" button; the list of available events in the eventrecords is then updated.

4. to print the list of events just selected(2) :

activate the menu "Events records - Print". Printing uses the standard Windows printdriver, so page setup (margins, orientation, etc.), choice of printer, etc. is controlledby the installed print driver.

5. to consult an event:

(2)

It is not possible to print details of events in this version of the application.

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select an event from the list by double-clicking on the selected element. Dependingon the type of event (1 to 10), a detail screen is displayed (2). From this screen, theuser can view the details of other events of the same type using a navigation bar.The following operations are then possible:

consult the first event of this type, consult the previous event of this type, consult the next event of this type, consult the last event of this type.

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5.5.5 Details of an SF6 short term sample event

The following screen details the selected event.

It shows:

0 the date and time of the event (DD/MM/YYYY and HH:MN:SS). This date is specifiedby the application when these are read and corresponds to the date and time on theCBWatch-2 interrogated

1 the SF6 equivalent gas pressure at 20 C for each pole (in kPa),2 the ambient temperature (in C),3 the RMS current (in A).

The information displayed cannot be modified.

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5.5.6 Details of an SF6 long term sample event


It shows:

0 the date and time of the event (DD/MM/YYYY and HH:MN:SS). This date is specifiedby the application when these are read and corresponds to the date and time on theCBWatch-2 interrogated

1 the SF6 equivalent gas pressure at 20 C for each pole (in kPa),2 the ambient temperature (in C),3 the RMS current (in A).


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5.5.7 Details of an SF6 fault event


It shows:

0 date and time of the event (DD/MM/YYYY and HH:MN:SS).1 the alarm status for each pole.


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5.5.8 Details of a closing operation


It shows:

0 the date and time of the event (DD/MM/YYYY and HH:MN:SS),1 the ambient temperature (in C),2 the closing coil voltage (in V),3 an indicator of the presence of an alarm related to closing operations4 per pole:

the number of closing operations the type of operation (O, C, OCO, etc.), the reaction time t1 (in ms), the closing time t2 (in ms),

the over travel amplitude (in mm), the rebound amplitude (in mm), the final position of travel (in mm), the positions of 52a and 52b switching (in mm), the travel curve for contacts during the closing operation (in mm). The travel

curves are shown on a graph for each pole. On these graphs the x-axis is thetime (in ms) and the y-axis is the position (in mm).

5 the status of alarms for each pole.


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5.5.9 Details of an opening operation


It shows:

0 the date and time of the event (DD/MM/YYYY and HH:MN:SS)1 the ambient temperature (in C)2 the closing coil voltage (in V)3 an indicator of the presence of an alarm related to opening operations4 per pole:

the number of opening operations the type of operation (O, C, OCO, etc.), the reaction time t1 (in ms),

the opening time t2 (in ms), the speed of contact separation (in m/s), the arcing time (in ms), the over travel amplitude (in mm), the rebound amplitude (in mm), the final position of travel (in mm), the positions of 52a and 52b switching (in mm), electrical wear on arcing contacts (in A2.s), the travel curve for arcing contacts during the opening operation (in mm), the curve for the current going through the circuit breaker during the opening

operation (in A).


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The travel and current curves are shown on the same graph per pole. On these graphs the x-axis is thetime (in ms) and the two y-axes are firstly the position (in mm) and secondly the current (in A).The information displayed cannot be modified.

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5.5.10 Details of spring rewinding


It shows:

0 the date and time of the event (DD/MM/YYYY and HH:MN:SS),1 per pole:

the running time of the rewinding motor (in s) the presence (or absence) of a fault.


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5.5.11 Details of re-inflating on operation


It shows:

0 the date and time of the event (DD/MM/YYYY and HH:MN:SS),1 the ambient temperature (in C),2 by pole:

the cumulative re-inflation time (in s), the type of operation (O, C, OCO, ).



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5.5.12 Details of re-inflating without operation


It shows:

0 the date and time of the event (DD/MM/YYYY and HH:MN:SS),1 the ambient temperature (in C),2 per pole:

the instantaneous leakage rate (in MPa/day), the average leakage rate (in MPa/day), the instantaneous pump efficiency (in MPa/s), the average pump efficiency (in MPa/s).

3 the alarm status for each pole.


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5.5.13 Details of a hydraulic fault


It shows:

0 the date and time of the event (DD/MM/YYYY and HH:MN:SS),1 the status of alarms for each pole.


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5.5.14 Details of auxiliary and self test faults


It shows:

0 the date and time of the event (DD/MM/YYYY and HH:MN:SS)1 the status of auxiliary circuit alarms for each pole2 the status of CBWatch-2 self test alarms for each pole


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5.6 Access to CBWatch-2 measurements and alarms in progress

The application offers real time viewing of measurements and alarms in progress, via the menu "Realtime data - View" (the connection must first be established).

The following screen is then displayed:

This "General" screen corresponds to a summary of alarms signalled by CBWatch-2. In addition itallows:

0 display of CBWatch-2 date and time1 the display and modification of information updating time (in s).

The CBWatch clock is modified by entering a date and time, via a dialogue box. The workstation dateand time are proposed by default. Polling operations on CBWatch-2 alarms andmeasurements are suspended during CBWatch-2 clock updating operations.

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5.6.1 Display of SF6 alarms and measurements in progress

The "SF6" tab details SF6 alarms and measurements.

It shows:

0 the ambient temperature (in C)1 per pole: the short term leakage rate (in kPA/h), the long term leakage rate (in kPA/year), SF6 gas pressure (in kPA), the equivalent density of SF6 gas at 20 C (in kPA).



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5.6.2 Display of "opening" alarms and measurements

The "Open op." tab details the alarms and measurements related to circuit breaker opening operations.

It shows:

0 the closing coil voltage (in V),1 per pole:

the position of the closed position sensor (auxiliary switch type a) the position of the open position sensor (auxiliary switch type b) the position of the circuit breaker The contacts displacement (in mm).



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5.6.3 Display of "closing" alarms and measurements in progress

The "Close op." tab details the alarms and measurements related to circuit breaker closing operations.

It shows:

0 the closing coil voltage (in V)1 per pole:

the position of the closed position sensor (auxiliary switch type a) the position of the open position sensor (auxiliary switch type b) the position of the circuit breaker The contacts displacement (in mm).



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5.6.4 Display of "switching" alarms and measurements in progress

The "Switching" tab details the alarms and measurements related to switching.

The primary current per pole is displayed together with the status of the following alarms (per pole).


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5.6.5 Display of spring operation alarms and measurements in progress

The "Spring" tab details closing spring operation alarms and measurements.

The presence or not of a fault is displayed for each pole together with the position of rewinding motorcontacts for each pole (in mm).


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5.6.6 Display of hydraulic alarms and measurements in progress

The "Hydraulic" tab details the hydraulic command alarms and measurements.

It shows:

0 per pole:

the position of the motor contact (in mm), the hydraulic pressure (in MPa), the opening locking position (in mm), the closing locking position (in mm), the open-close-open locking position (in mm),

the level of nitrogen or oil.1 the status of alarms for each pole.


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5.6.7 Display of auxiliary circuits alarms and measurements in progress

The "Aux." tab details the auxiliary circuit and supervision alarms and measurements.

It shows:

0 the position of coil supervision relay output contact1 the position of AC presence relay output contact2 the ambient temperature (in C),3 the status of alarms.


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5.6.8 Display of self test alarms in progress

The "Self Test" tab details CBWatch-2 self test alarms.

The status of the following alarms is displayed.


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5.7 On-line help

On-line help is accessible from the various application screens by activating: the "Help" button if present

the "F1" key the item "Help - Index" or "Help - Help on" in the main screen menu.

Help can also be accessed independently of the application from the menu "Start - Programs -CBW2Tool", item "CBW2Tool Help".

The presentation of on-line help for the application uses the Windows help mechanisms: navigation,searches by keyword, etc. are therefore standard.

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