Related Manuals for P&B MR-METI31
Summary of Contents for P&B MR-METI31
- Page 1 MR-METI31 Directional Relay Technical Manual Issue 1.0, August 2021 ISSUE DOCUMENT REF. NUMBER OMR0138 DATE 11/08/2021 APPLICABLE RELAY FIRMWARE VERSION(S) V0.064...
- Page 2 Document Issue Record Issue. Description of Amendments Author Reviewer Approved Date Initial Release 11 Aug 21 © 2021 PBSI Group Ltd. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, published or transmitted, in any form or by any means, without prior written permission of the copyright owner.
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Page 3: Table Of Contents
MR-METI31 Technical Manual Issue 1.0, August 2021 Contents 1. Main Features ........................................5 1.1. Protection Functions....................................5 1.2. Displayable Data......................................5 1.3. Displayed Feeder Status.................................... 5 1.4. Control Functions....................................... 5 1.5. Control Output Relays....................................5 2. - Page 4 MR-METI31 Technical Manual Issue 1.0, August 2021 9.4. MR-METI 31 Blank Protection Setting Summary............................27 10. MR-METI 31 Self Supervision ..................................28 10.1 Power/Start-Up ......................................28 10.2 Online Monitoring ....................................29 Appendix 1 .......................................... 30 MR-METI 31 Installation....................................30 200 Series Case Dimensions ..............................
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Page 5: Main Features
MR-METI31 Technical Manual Issue 1.0, August 2021 1. Main Features • Relay characteristic angle. • Low Burden. • 3 phase Directional protection 1.1. Protection Functions. Directional Protection Serial Timeout Internal Error 1.2. Displayable Data. Directional Current (Id) Directional Voltage (Vd) -
Page 6: Description
MR-METI31 Technical Manual Issue 1.0, August 2021 polarising voltage is supplied by a 3-phase voltage transformer tertiary winding and a relay characteristic angle of 45° or 60° (current lag) is used for solidly earthed systems and 0° for resistive earthed systems. -
Page 7: Principle Of Operation
MR-METI31 Technical Manual Issue 1.0, August 2021 2.3. Principle of operation Examples Typical characteristics of earth fault voltage polarised unit relay characteristic angle = -60’ Typical characteristic of phase fault voltage polarised unit. Relay Characteristic angle = +45’ Page 7... -
Page 8: Technical Specification
MR-METI31 Technical Manual Issue 1.0, August 2021 3. Technical Specification. Power Supply. & L UXILIARY OWER UPPLY OLTAGE OWER UPPLY Range 80 – 265V AC / DC AC Nominal Range 24V AC / 24-48V DC (Low Voltage Power Supply Optional Extra) -
Page 9: Environmental Tests
MR-METI31 Technical Manual Issue 1.0, August 2021 4. Environmental Tests. CLIMATIC EST STANDARD EVERITY LEVEL Temperature Dry Cold IEC 60068-2-1 -20 deg C,96 hrs Operational Temperature Dry Cold IEC 60068-2-1 -40 deg C, 96hrs Transportation & Storage Temperature Dry Heat... -
Page 10: Inputs And Outputs
MR-METI31 Technical Manual Issue 1.0, August 2021 5. Inputs and Outputs. 5.1. Power Supply Live. The MR-METI 31 requires a permanent AC or DC Voltage to supply the unit as specified by the relay rating label, terminal 13 being positive and terminal 14 being negative. This auxiliary live is also used as the source voltage to power the digital inputs. -
Page 11: Faceplate Functions
MR-METI31 Technical Manual Issue 1.0, August 2021 6. Faceplate Functions. The MR-METI 31 faceplate has been designed to provide an intuitive easy to use display allowing access to all the required information an operator would require. This is achieved by using tri colour LED indications and an LCD display driven by 4 function keys. -
Page 12: Lcd Display
MR-METI31 Technical Manual Issue 1.0, August 2021 7. LCD Display. The MR-METI 31’s interface is fundamental to the philosophy of the Vision relay family of devices. The screen provides access to all dynamic and historical data and protection parameters. 7.1. Menu Screens. -
Page 13: Display Scroll
MR-METI31 Technical Manual Issue 1.0, August 2021 7.2. Display Scroll. Examples of the Display Scroll screens. 0.0A Hlth Hlth AFd 0.0% Hlth MENU MENU MENU MENU Tr Normal Al Normal IRF 0 Hlth MENU MENU MENU MENU Selecting the <MENU> button allows access into the sub menu and settings structure. The <UP> and <DOWN>... -
Page 14: Feeder Settings
MR-METI31 Technical Manual Issue 1.0, August 2021 7.3. Feeder Settings. Feeder Settings CT Primary This screen allows access to the Feeder Settings of the relay. The CT Primary can be viewed and set. 100A The list of values that are available to be changed can be scrolled through by pressing the UP and DOWN buttons. -
Page 15: Serial Settings
MR-METI31 Technical Manual Issue 1.0, August 2021 7.4. Serial Settings. This screen allows configuration communication ports. Serial Enabled / Disabled. This setting allows the user to enable the MR-METI 31 serial communications port. This setting must be set to ‘Enable’... -
Page 16: Fast Scan 1 To 3
MR-METI31 Technical Manual Issue 1.0, August 2021 A communications delay may be beneficial to ensure the Master device on the Data Highway receives all information sent back by the MR-METI 31 without enduring data collisions on the network. Fast Scan 1 to 3. -
Page 17: System Settings
MR-METI31 Technical Manual Issue 1.0, August 2021 7.6. System Settings. This screen allows access to relay specific settings. Such as, password functionality, screen contrast settings etc. and non-categorised relay settings. These settings and their functions are explained in detail below Password. -
Page 18: Enable Disturbance
MR-METI31 Technical Manual Issue 1.0, August 2021 Enable Disturbance In order for some functions to operate a unique activation code is required to access hidden menu screens, The Disturbance Recording facility requires unique activation codes to operate. Time and Date. -
Page 19: Protect Settings
MR-METI31 Technical Manual Issue 1.0, August 2021 7.7. Protect Settings. >IAd Action This sub menu allows the user to configure all of the current based protective functions: DISABLED DISPLAYED: FULL DETAIL: >IAd. Directional Overcurrent SerTmout Serial Timeout Intnl Err Internal Error Each function can be set to Alarm and / or Trip and / or Block or left as an unused function, disabled. -
Page 20: Trip
MR-METI31 Technical Manual Issue 1.0, August 2021 Trip. A Trip is considered as a high-level function. If the function activates it will be recorded as part of the trip history and cause the MR-METI 31 to enter a trip state; the fault will be displayed in the active faults page and the unit will automatically display that page, the right-hand LED will give a Trip indication (red colour). -
Page 21: Internal Error (Intnl Err)
MR-METI31 Technical Manual Issue 1.0, August 2021 7.7.3. Internal Error (Intnl Err) The MR-METI 31 incorporates an internal software and hardware watchdog feature to monitor the integrity of both on board hardware and software systems. This feature may be configured to indicate as a result of any registered problems. -
Page 22: Calibration Menu
MR-METI31 Technical Manual Issue 1.0, August 2021 Trip Cause Alarm Cause Trip Time Alarm Time Trip Date Alarm Date Trip Current Channels: Alarm Current Channels: (Id, Vd, AFd) (Id, Vd, AFd) 7.11. Calibration Menu. The calibration menu should not be entered unless it is absolutely necessary to do so. -
Page 23: Menu Tree Structure
MR-METI31 Technical Manual Issue 1.0, August 2021 8. Menu Tree Structure. INITIAL MENU Trip Cause, Time & Date, 32 x EVENT + Current Readings: Id, Vd, TIME & DATE DISPLAY SCROLL AFd. No. Of Trips MENU Id, Vd, AFd DI &... -
Page 24: Mr-Meti 31 Setting Sheets
MR-METI31 Technical Manual Issue 1.0, August 2021 9 MR-METI 31 Setting Sheets 9.1. MR-METI 31 System Settings Summary. Range Step Default User Setting Serial Settings Serial Enabled / Disabled Enabled Drive Number 1-32 RS485 Baud Rate 9600/19200/38400 9600 RS485 Serial Protocol Modbus / P&B Std... -
Page 25: Mr-Meti 31 Control Setting Summary
MR-METI31 Technical Manual Issue 1.0, August 2021 9.2. MR-METI 31 Control Setting Summary. Range Step Default User Setting Relay Outputs Relay Red Phase Fixed IArd IArd IArd Relay Yellow Phase Fixed IArd Relay Blue Phase Fixed IArd IArd Page 25... -
Page 26: Mr-Meti 31 Protection Setting Summary
MR-METI31 Technical Manual Issue 1.0, August 2021 9.3. MR-METI 31 Protection Setting Summary. # Selectable ! Fixed ANSI No. Protective Function Variable Range Step 0° – ±60° Charact. Angle Trip Level 0°, ±30°, IArd ±45° ±60° Serial Timeout Timeout In... -
Page 27: Mr-Meti 31 Blank Protection Setting Summary
MR-METI31 Technical Manual Issue 1.0, August 2021 9.4. MR-METI 31 Blank Protection Setting Summary. # Selectable ! Fixed Available ANSI No. Protective Function Variable User Setting Action IArd Trip Level IArd Serial Timeout Timeout In Internal Error Page 27... -
Page 28: Mr-Meti 31 Self Supervision
MR-METI31 Technical Manual Issue 1.0, August 2021 10. MR-METI 31 Self Supervision The MR-METI 31 protection relays are equipped with an internal self-supervision software monitoring function. The self-supervision feature is active immediately at power-up, to check for errors during the start-up sequence and during run-time, continually monitoring the relay’s hardware and software whilst in service. -
Page 29: Online Monitoring
MR-METI31 Technical Manual Issue 1.0, August 2021 10.2 Online Monitoring If an error is detected during run-time it will be displayed at the bottom of the LCD screen. The error code functions available during run-time are shown below: - D0 (1) -
Page 30: Mr-Meti 31 Installation
MR-METI31 Technical Manual Issue 1.0, August 2021 Appendix 1 MR-METI 31 Installation. The MR-METI 31 is supplied in a 200 series withdrawable case suitable for flush mounting as detailed below. The control and CT cable should be stranded copper core of 0.5 to 2.5mm The rear terminal block accepts both pre-insulated screw and push on blade type connectors. -
Page 31: Termination Numbers Mr-Meti 31
MR-METI31 Technical Manual Issue 1.0, August 2021 Appendix 2 Termination Numbers MR-METI 31 RLY Red Ph N/O RLY Red Ph N/O RLY Yellow Ph N/O RLY Yellow Ph N/O RLY Blue Ph N/O RLY Blue Phase N/O RS485- RS485+ V1 (N) -
Page 32: Connection Example
MR-METI31 Technical Manual Issue 1.0, August 2021 Appendix 3 Connection Example Example 1. Typical application diagram: Directional relay MR-METI31 Two phase and earth fault Page 32... -
Page 33: Abbreviation Key
MR-METI31 Technical Manual Issue 1.0, August 2021 Appendix 4 Abbreviation KEY Fail Safe Auxiliary Intrnl Internal Trpd Tripped Alrm Alarm Hlth Healthy Ser Tmout Serial Timeout Serial Digital Input 1 Digital Input 2 Internal Relay Fault Measured Voltage Input Indic. -
Page 34: Factory Default Procedure
MR-METI31 Technical Manual Issue 1.0, August 2021 Appendix 5 Factory Default Procedure If for any reason the unit is required to be set to factory defaults the following method can be applied. • Power down the relay unit. • Press and hold the following three buttons •... -
Page 35: Disturbance Recording Activation
MR-METI31 Technical Manual Issue 1.0, August 2021 Appendix 6 Disturbance Recording Activation If the unit was not purchased with disturbance recording, it is still possible to activate this feature at a later date. To activate the disturbance recording feature after purchasing you must enter a unique password into Disturbance Recording Activation Key menu see section 7.6. - Page 36 MR-METI31 Technical Manual Issue 1.0, August 2021 Note: With the Vision Control 3 Installation a sample file MVSample.cfg is also copied in C:\Vision Control 3 Files\Comtrade folder. This is supplied to provide a demo of the viewer facility if no disturbance files have been retrieved.
- Page 37 MR-METI31 Technical Manual Issue 1.0, August 2021 Zooming can be done by clicking anywhere on the curve and Dragging Mouse to the extent required as shown below. Section to Zoom Click and Drag Right Zoomed View Click on Zoom Reset to view full Trace length.
- Page 38 MR-METI31 Technical Manual Issue 1.0, August 2021 Relay ID and Information is derived from the Disturbance data and displayed at the end of the waveforms as shown below. Click on Print to send Command to printer for trace to be printed according to paper size.
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Page 39: Disturbance Download
MR-METI31 Technical Manual Issue 1.0, August 2021 Disturbance Download Click on Download from Device button in Fault Disturbance Analysis Section to display options related to downloading of traces. Set the required communication parameters, Device ID and selecting Rear or Front Port by clicking Rear /Front Port Button. - Page 40 MR-METI31 Technical Manual Issue 1.0, August 2021 Click on the Trace to view details in brief regarding the trace. Specify a file name and Press Download Trace Button. Click to see details Trace Download Starts and is saved at the location specified in File Path. Allow download to complete before performing any other operation.
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Page 41: Handling Guidelines
MR-METI31 Technical Manual Issue 1.0, August 2021 Appendix 7 Handling Guidelines. Installation. Protection relaying equipment should be installed, commissioned and programmed by professional engineers familiar with such products. P&B cannot be held liable if proper handling is not observed. The relay is programmed to the factory default settings upon shipment and must be programmed correctly to achieve safe and satisfactory protection of the equipment.
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