C264_ENMF_C30

Maintenance C264/EN MF/C30 MiCOM C264/C264C

MAINTENANCE


Page 1/28

CONTENT

1. SCOPE OF THE DOCUMENT 3

2. STANDARD MAINTENANCE OPERATION 4

2.1 Level 1 diagnosis facilities 4 2.1.1 Front panel LED indications 4 2.1.2 Front panel LCD indications 6 2.1.3 Adjustment of the brightness of the front panel LCD 7 2.2 Maintenance period 7 2.3 Method of repair 7 2.3.1 Replacing the complete MiCOM C264/C264C 8 2.3.2 Replacing a board 9 2.4 Cleaning 13

3. THE EMBEDDED MAINTENANCE WEB-SERVER 14

3.1 Maintenance data pages 16 3.1.1 C264 general information page 16 3.1.2 Databases general information page 17 3.1.3 Racks and boards status page 18 3.1.4 IED networks page 19 3.1.5 CPU time and synchronisation page 20 3.2 Process data pages 22 3.2.1 Binary inputs page 22 3.2.2 Measurements page 23 3.2.3 Counters page 24 3.2.4 TPI page 25 3.3 Files upload pages 26 3.3.1 Systrap error file upload page 26 3.3.2 Stored event log file upload page 27

4. ENGINEERING MAINTENANCE OPERATION 28

C264/EN MF/C30 Maintenance Page 2/28

MiCOM C264/C264C

BLANK PAGE


Page 3/28

1. SCOPE OF THE DOCUMENT

This document is a chapter of MiCOM C264/C264C documentation binders. It describes the Maintenance and FaultFinding procedures of the MiCOM C264/C264C. Reading of C264/EN SA chapter is mandatory.


MiCOM C264/C264C

2. STANDARD MAINTENANCE OPERATION

The aim of this chapter is to describe standard methods to diagnose the MiCOM C264/C264C status, and provide common maintenance procedures for the replacement and/or addition of components.

Before any maintenance operation, please refer to the documentation chapter SA (Safety) and to the AREVA T&D Safety Guide: SFTY/4L M/C11 (or later issue).

2.1 Level 1 diagnosis facilities

When maintenance action is planned, the operator should prepare, act and report.

The minimal preparation is to get the commissioning Record Sheet (see the C264/EN RS chapter) of installed MiCOM C264/C264C in order to see the product configuration and its history. The User should refer also to his own experience besides this manual. It is also recommended to extract the logbook history in order to be informed of the intervention conditions.

At a first level the product provides several methods to check the context of the fault. The main ones are:

• LEDs

• LCD (Liquid Crystal Display)

2.1.1 Front panel LED indications

Refer to C264/EN HI chapter for the precise Led’s description.

On the main rack:


Page 5/28

The first 5 LEDs indicate the MiCOM C264/C264C status information. With reference to the C264/EN HI (Human Interface) chapter, the LEDs indicate from top to down:

LED id Colour LED on LED slow blinking

LED fast blinking LED off

1 Red There is at least one major fault (hardware, database)

There is at least one minor fault (I/O board, communication to IEDs, …)

Not used There is no fault

2 yellow All the alarms are acknowledged, but there is at least one alarm still active.

NOTE: When the alarm disappears, the LED returns automatically to OFF

All alarms displayed in the alarm panel are inactive and acknowledged

There is at least one not acknowledged alarm displayed in the alarm panel

There is no alarm.

3 yellow Computer in service Computer in maintenance

Computer in test Computer in reboot

4 Green Power up is present Not used Not used Power up is out

5 (Fixed only for without

LCD panel: GHU2x1)

Red All bays managed by the computer are in LOCAL mode

Bays managed by the computer are not in the same control mode

Not used All bays managed by the computer are in REMOTE


MiCOM C264/C264C

A minor fault is a fault causing only the non-availability of a part of the functionality:

Phenomenon LED status Possible reason Way to solve

Functions like communication, automation, printing are well operating and the watch dog on BIU (see chapter C264/EN CO) is SET.

All LEDs are OFF The cable between CPU and GHU2xx, or GHU2xx itself is not operational

Verify the connection between CPU or GHU2xx.

If connection is OK and the problem is not already solved then change the GHU2xx board.

The supply is ON and the watch dog on BIU (see chapter C264/EN CO) is RESET.

All LEDs are OFF Problem with BIU board or CPU board

Replace BIU board or CPU board.

C264 is not running or not fully operational

LED1 ON Incoherent database Download a coherent database.

Hardware fault Go in Fault panel and Board panel to determine the faulty board and change it.

C264 is not fully operational

LED1 is blinking A IED is disconnected Go into IED panel to determine the disconnected IED and verify the cable, the BIU configuration, the communication parameters inside the PACiS configurator, the communication parameters inside the relay.

The printer is disconnected

Go into Fault panel and verify that paper is available, the printer is switch ON, the printer cable.

A problem about clock synchronisation

Go into Fault panel and verify that the external clock is switch ON, the external clock is connected to the antenna, the external clock is connected to the C264.

A problem about PLC (ISaGRAF)

Go into Fault panel and connect the ISaGRAF workbench to the C264. Verify the behaviour of the PLC.

2.1.2 Front panel LCD indications

GHU200 or GHU210 board gives access to the status of the boards, the state of digital inputs, the state of digital outputs, the connection state with external devices. The CM chapter describes this.


Page 7/28

2.1.3 Adjustment of the brightness of the front panel LCD

When button and button are pressed simultaneously it is possible to

increase (resp. decrease) the brightness of the front panel LCD by pressing button

(resp. button )

2.2 Maintenance period

It is recommended that AREVA T&D EAI products receive periodic monitoring after their installation. Deterioration may occur over time. Because of the electrical and disturbed environment, it is recommended to confirm at regular intervals that the MiCOM C264 is operating correctly.

The AREVA MiCOM C264/C264C has been designed for a life cycle of over 15 years.

MiCOM C264/C264C is self-supervising and therefore requires less maintenance than previous products. Most problems will lead to an alarm so fast and appropriate action can be done. However, some periodic tests should be done to ensure the MiCOM C264/C264C is operating correctly and that the external wiring in a good condition.

If a Preventative Maintenance Policy exists within the customer’s organisation then the recommended product checks should be included in the regular programme. Maintenance periods will depend on many factors, such as:

• the operating environment

• the accessibility of the site

• the amount of available manpower

• the importance of the installation in the power system

• the consequences of failure

2.3 Method of repair

If the MiCOM C264/C264C should develop a fault whilst in service, depending on the nature of the fault, the watchdog contacts will change state and an alarm condition will be flagged. Due to the extensive use of surface-mount components (SMC) faulty boards should be replaced, as it is not possible to perform repairs on damaged circuits with SMC technology. Thus either the complete MiCOM C264/C264C or just the faulty board, identified by the in-built diagnostic software, can be replaced.

The preferred method is to replace the complete MiCOM C264/C264C as it ensures that the internal circuitry is protected against electrostatic discharge and physical damage at all times and overcomes the risk of incoherency with the new boards. In some cases, it may be difficult to remove an installed MiCOM C264/C264C due to limited access in the back of the cubicle and rigidity of the scheme wiring then only the faulty elements will be replaced.

Replacing boards can reduce transport costs but requires clean, dry on site conditions and higher skills from the person performing the repair. If an unauthorised service centre performs the repair, the warranty will be invalidated.

BEFORE CARRYING OUT ANY WORK ON THE EQUIPMENT, THE USER SHOULD BE FAMILIAR WITH THE CONTENTS OF THE SAFETY AND TECHNICAL DATA CHAPTERS (AREVA T&D SAFETY GUIDE: SFTY/4L M/C11 OR LATER ISSUE) AND THE RATINGS ON THE EQUIPMENT'S RATING LABEL.

THIS SHOULD AVOID INCORRECT HANDLING OF THE ELECTRONIC COMPONENTS AND DAMAGE.


MiCOM C264/C264C

2.3.1 Replacing the complete MiCOM C264/C264C

The case and rear terminal blocks have been designed to facilitate removal of the complete MiCOM C264/C264C.

Before working at the rear of the MiCOM C264/C264C, isolate all the voltages and currents connected to the MiCOM C264/C264C.

NOTE: The MiCOM C264/C264C have current transformer shorting switches which close when terminal block is removed.

2.3.1.1 Replacing the complete MiCOM C264/C264C

Before any disconnection, check the labels correctly define the connectors and match with the wishing description you have. Otherwise, note the current wiring in order to prepare the new C264 installation.

1. Disconnect the power supply connector

2. Disconect the MiCOM C264/C264C IRIG-B, fibre optic, Ethernet RJ45 and serial links connected on CPU board.

3. Disconnect the input/output connectors

4. Disconnect earth connection

There are two types of terminal block used on the MiCOM C264/C264C:

C0112ENa

2

4

6

8

10

12

14

16

18

20

22

24

26

28

1 1

24

CT/VTEarthing

connection

Connectorfixation screw

Connectorfixation screw

3

5

7

9

11

13

15

17

19

21

23

25

27

FIGURE 1: LOCATION OF SECURING SCREWS FOR TERMINAL BLOCKS

NOTE: The use of a magnetic bladed screwdriver is recommended to minimise the risk of the screws being left in the terminal block or lost. A 3 mm flat head screwdriver is recommended for fixation screws. A 6 mm flat head screwdriver is recommended for CT/VT earthing connections.

Without exerting excessive force or damaging the scheme wiring, pull the terminal blocks away from their internal connectors.

Remove the screws used to fasten the MiCOM C264/C264C to the panel, rack, etc. These are the screws with the larger diameter cross heads that are accessible when the access covers are fitted and open.


Page 9/28

IF THE TOP AND BOTTOM ACCESS COVERS HAVE BEEN REMOVED, DO NOT REMOVE THE SCREWS WITH THE SMALLER DIAMETER HEADS WHICH ARE ACCESSIBLE. THESE SCREWS HOLD THE FRONT PANEL ON THE MiCOM C264/C264C.

5. Withdraw the MiCOM C264/C264C from the panel or rack carefully and take care of its weight because there are some heavy parts due to the internal transformers.

2.3.1.2 Installation of new C264

To reinstall the repaired or new MiCOM C264/C264C, follow the above previous in reverse. Ensure that each terminal block is relocated in the correct position and the case correctly earthed, IRIG-B and fibre optic connections are put back in place.

Once reinstallation is complete the MiCOM C264/C264C should be commissioned again using the instructions in CM chapter.

2.3.2 Replacing a board

To replace any of the MiCOM C264/C264C’s boards it is necessary to remove the front panel.

Before removing the front panel the auxiliary supply must be switched off. It is also strongly recommended that the voltage and current transformer connections and trip circuit are isolated.

Open the top and bottom access covers. With size 80TE cases the access covers have two hinge-assistance T-pieces which clear the front panel moulding when the access covers are opened by more than 120°, thus allowing their removal.

If fitted, remove the transparent secondary front cover. A description of how to do this is given in Chapter C264/EN IT (Introduction).

By applying outward pressure to the middle of the access covers, they can be bowed sufficiently so as to disengage the hinge lug allowing the access cover to be removed. The screws that fasten the front panel to the case are now accessible.

The size 40TE case has four cross head screws fastening the front panel to the case, one in each corner, in recessed holes. The size 80TE case has an additional two screws, one midway along each of the top and bottom edges of the front plate. Undo and remove the screws.

DO NOT REMOVE THE SCREWS WITH THE LARGER DIAMETER HEADS WHICH ARE ACCESSIBLE WHEN THE ACCESS COVERS ARE FITTED AND OPEN. THESE SCREWS HOLD THE MiCOM C264/C264C IN ITS MOUNTING (PANEL OR CUBICLE).

When the screws have been removed, the complete front panel can be pulled forward and separated from the metal case.

CAUTION SHOULD BE OBSERVED AT THIS STAGE BECAUSE A CABLE CONNECTS THE FRONT PANEL TO THE REST OF THE MICOM C264/C264C CIRCUITRY.

Additionally, from here on, the internal circuitry of the MiCOM C264/C264C is exposed and not protected against electrostatic discharges, dust ingress, etc. Therefore ESD precautions and clean working conditions should be maintained at all times.


MiCOM C264/C264C

FIGURE 2: MiCOM C264C WITH TMU200/TMU220 BOARD

FIGURE 3: MiCOM C264C WITHOUT TMU200/TMU220 BOARD


Page 11/28

FIGURE 4: MiCOM C264 WITH TMU200/TMU220 BOARD

FIGURE 5: MiCOM C264 WITHOUT TMU200/TMU220 BOARD

The boards within the MiCOM C264/C264C are now accessible. Figures above show the board locations for the MiCOM C264/C264Cs in size 40TE (C264C) and size 80TE (C264) cases respectively.

Looking to the front of the MiCOM C264/C264C with the front panel off, you can have access to a printed circuit that connects all the boards together: this is the backplane board.


MiCOM C264/C264C

To remove a card you need to:

• Pull the backplane board (FBP280 for C264 or FBP242 for C264C) out by holding it by the two extremities.

• Remove the screws and the maintain bar at the bottom of the case.

NOTE: To ensure compatibility, always replace a faulty board with one of an identical part number and set jumpers in identical position.

All the boards are shown and described in HW chapter.

2.3.2.1 Replacement of the Binary Input Unit (BIU241)

The BIU is the power supply board located on the extreme left-hand side (slot A) of MiCOM C264/C264C.

Pull the power supply module forward, away from the rear terminal blocks and out of the case. A reasonable amount of force will be required to achieve this due to the friction between the contacts of the two medium duty terminal blocks. It is then recommended to use the special tool for extracting board (internal reference is 2070860).

Do not forget to set the jumpers on the new board in the same position as the previous one.

2.3.2.2 Replacement of the main processor board (CPU260/CPU270)

Depending on the model of the MiCOM C264/C264C the processor board carried out the IRIG-B functionality’s so if you identify an IRIG-B connection problem you will have to replace the processor board.

After replacement of the main processor board, all the settings required for the application will need to be re-entered.

The CPU board is located next to the BIU board (slot B).

Do not forget to disconnect the rear cables (RJ45 Ethernet, optical fibres, IRIG-B connector and serial links) before replacing the board and to reconnect them after.


2.3.2.3 Replacement of the Ethernet switch boards (SWU20x or SWR20x or SWD20x)

The Ethernet switch board is located on slot C.

Do not forget to disconnect the rear cables (RJ45 Ethernet and optical fibres) before replacing the board and to reconnect them after.


2.3.2.4 Replacement of the I/O boards (DIU200, DIU210, DOU200, CCU200, AIU201, AIU210, AIU211)

The I/O boards can be located in any slot from C to Q.


2.3.2.5 Replacement of the Transducerless Measurements Unit (TMU)

The measurement unit is on the extreme right-hand side of MiCOM C264/C264C.


Page 13/28

2.3.2.6 Refit the MiCOM C264/C264C

Before re-assembling the module with a replacement board, make sure that the address for the replacement board is the same address that the board replaced by checking the jumpers on the boards.

Refit the FBP board.

Screw the bar in the bottom of the case.

Refit the front panel. After refitting and closing the access covers, press at the location of the hinge-assistance T-pieces so that they click back into the front panel moulding.

Once the relay has been reassembled after repair, it must be commissioned again (see chapter CM).

2.4 Cleaning

Before cleaning the MiCOM C264/C264C ensure that all ac/dc supplies, current transformer and voltage transformer connections are isolated to prevent any chance of an electric shock whilst cleaning.

Front panel cleaning: use a smooth cloth. Do not use abrasive material or detergent chemicals.


MiCOM C264/C264C

3. THE EMBEDDED MAINTENANCE WEB-SERVER

The Maintenance Web server is only embedded in a CPU270 ( also name CPU 3) board.

This server can be accessed via the Internet Network with a standard web browser ( Internet Explorer 5.0 minimum or Mozilla Firefox 1.5 minimum).

An URL is defined to access this webserver. Operator has to know the IP address of the computer to establish the link.

Two level of access rights are defined depending on User name and associated password according to the following table:

User name password Access rights

level1 level1 Maintenance data

level2 level2 Maintenance data and upload files

When operator connects to the webserver the following dialog box is displayed.

FIGURE 6: THE LOGIN DIALOG BOX

After correct name and password are entered the home page is displayed. The user can choose the language ( English / French / Deutch / Spanish) then select the information to be displayed.


Page 15/28

FIGURE 7: WEBSERVER HOME PAGE


MiCOM C264/C264C

3.1 Maintenance data pages

3.1.1 C264 general information page

This page gives the following information:

• the computer identification ( name, serial number, IP addresses for port 1 and 2)

• information about software ( version, date, database compatibility)

• the computer operating mode ( OPERATIONAL / MAINTENANCE / TEST)

• the computer operating mode ( ACTIVE / STANDBY / NO REDUNDANCY)

FIGURE 8: C264 GENERAL INFORMATION PAGE


Page 17/28

3.1.2 Databases general information page

For each of the two databases this page gives the following information:

• name

• version

• status (STANDBY / CURRENT)

FIGURE 9: DATABASE GENERAL INFORMATION PAGE


MiCOM C264/C264C

3.1.3 Racks and boards status page


• the composition of the computer

• the status of each board ( configured and present / configured and absent / present and not configured / faulty)

• the status ( valid ON / valid OFF) of the binary inputs of boards BIU241, DIU2x0, CCU200 ( if configured and present)

• the status ( valid OPEN / valid CLOSE) of the binary outputs of boards BIU241, DOU200, CCU200 ( if configured and present)

FIGURE 10: RACKS AND BOARDS STATUS PAGE


Page 19/28

3.1.4 IED networks page


• list of the configured IEDs

• protocol type and port for each legacy bus

• status ( connected / not connected) of each IED

FIGURE 11: IED NETWORKS PAGE


MiCOM C264/C264C

3.1.5 CPU time and synchronisation page


3.1.5.1 CPU information

• the computer date and time

• the total functioning time

• Temperature

• Voltage

• year number stored in SRAM

3.1.5.2 IRIG-B information

• status ( present / not present)

• validity

• signal level

3.1.5.3 Synchronisation information

• UTC date

• local date

• time zone

• synchronism status ( synchronous / not synchronous)

• synchronism equipment active ( Operator / IRIG-B / RCP / Sbus)

• synchronism equipment present ( Present / Not present)

• synchronism equipment priority ( 0 to 3)

• System master clock ( Yes / No)


Page 21/28

FIGURE 12: CPU TIME AND SYNCHRONISATION PAGE


MiCOM C264/C264C

3.2 Process data pages

When the user requests the display of one these pages the computer performs the acquisition of all the related information ( binary inputs, measurement, counters, TPI) then displays them ( date and time, name, status).

3.2.1 Binary inputs page

FIGURE 13: BINARY INPUTS PAGE


Page 23/28

3.2.2 Measurements page

FIGURE 14: MEASUREMENTS PAGE


MiCOM C264/C264C

3.2.3 Counters page

FIGURE 15: COUNTERS PAGE


Page 25/28

3.2.4 TPI page

FIGURE 16: TPI PAGE


MiCOM C264/C264C

3.3 Files upload pages

This page allows the operator to upload two types of files

3.3.1 Systrap error file upload page

FIGURE 17: SYSTRAP ERROR FILE UPLOAD PAGE

FIGURE 18: A SYSTRAP ERROR FILE


Page 27/28

3.3.2 Stored event log file upload page

FIGURE 19: STORED EVENT LOG FILE UPLOAD PAGE

FIGURE 20: AN STORED EVENT LOG FILE


MiCOM C264/C264C

4. ENGINEERING MAINTENANCE OPERATION

The CMT software is able to:

• Upgrade the C264 software

• Download and switch the databases

• Download the software key

These functions are needed for customising the C264. Please report to the IN chapter.

The CMT user guide is also completely described inside the CMT online help.

C264_ENMF_C30

Documents

Transcript of C264_ENMF_C30