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Alpha TR User Guide
High Speed Tripping Relay
RMS Mors Smitt
Advanced Protection Devices
User Guide
Page 1
Alpha TR_User_Guide_v01.0 02/01/25
www.morssmitt.com/rms
for the latest product information.
Due to RMS continuous product improvement policy this information is subject to change without notice.
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Table of Contents
Related Manuals for Wabtec RMS Mors Smitt Alpha TR
Summary of Contents for Wabtec RMS Mors Smitt Alpha TR
- Page 1 Alpha TR User Guide High Speed Tripping Relay RMS Mors Smitt Advanced Protection Devices User Guide Page 1 Alpha TR_User_Guide_v01.0 02/01/25 www.morssmitt.com/rms for the latest product information. Due to RMS continuous product improvement policy this information is subject to change without notice.
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Page 2: About This Manual
Contact Us RMS Mors Smitt 19 Southern Court • Keysborough 3173 • AUSTRALIA Phone +61 3 8544 1200 • Web Email sales.rms@wabtec.com http://www.morssmitt.com/rms Page 2 Alpha TR_User_Guide_v01.0 02/01/25 www.morssmitt.com/rms for the latest product information. Due to RMS continuous product improvement policy this information is subject to change without notice. -
Page 3: Table Of Contents
Contents Contents .......................... 3 Documentation ........................ 4 Technical Bulletin ..........................4 User Guide ............................4 Introduction ........................5 Scheme Wiring and Installation ..................6 Alpha TR5 Connection diagram ......................6 Alpha TR12 Connection diagram ......................7 Example Schematic – Typical Trip Application ..................8 Terminal Layout and Relay Dimensions .................... -
Page 4: Documentation
Documentation Technical Bulletin The detailed technical attributes, functional description & performance specifications for the Alpha TR are described in the product Technical Bulletin. The order of precedence for product information is as follows: • Technical Bulletin • User Guide User Guide This User Guide covers all Alpha TR relay versions &... -
Page 5: Introduction
Introduction The Alpha TR relay is a withdrawable High Speed Tripping relay with low contact bounce time and high contact rating. The relay design incorporates a user settable high or low operate input burden. The high burden setting allows for applications that have specific Capacitor Discharge Immunity requirements to ESI 48-4 EB2. -
Page 6: Scheme Wiring And Installation
Scheme Wiring and Installation Alpha TR5 Connection diagram Page 6 Alpha TR_User_Guide_v01.0 02/01/25 www.morssmitt.com/rms for the latest product information. Due to RMS continuous product improvement policy this information is subject to change without notice. -
Page 7: Alpha Tr12 Connection Diagram
Alpha TR12 Connection diagram Page 7 Alpha TR_User_Guide_v01.0 02/01/25 www.morssmitt.com/rms for the latest product information. Due to RMS continuous product improvement policy this information is subject to change without notice. -
Page 8: Example Schematic - Typical Trip Application
Example Schematic – Typical Trip Application Main Electrical Reset Protection Relay Alpha TR Reset Coil Trip Operate Coil where specified Relay Circuit Breaker Shown in the Open Position Circuit Breaker Trip coil Relays shown de-energised Page 8 Alpha TR_User_Guide_v01.0 02/01/25 www.morssmitt.com/rms for the latest product information. -
Page 9: Terminal Layout And Relay Dimensions
Terminal Layout and Relay Dimensions 159 168 2 HOLES Ø3.7 Front View Back View Cutout Side View Top View The relay module is designed for rack or panel mounting. Page 9 Alpha TR_User_Guide_v01.0 02/01/25 www.morssmitt.com/rms for the latest product information. Due to RMS continuous product improvement policy this information is subject to change without notice. -
Page 10: Ip2X Terminal Covers
IP2X Terminal Covers The relay may be ordered with IP2X terminal covers to provide IP2X protection of the case terminals. Alternatively separate IP2X terminal cover kits are available to provide IP2X protection of the case terminals. The covers are fitted to the terminal block prior to cable termination. 2M28-S Case with IP2X cover Page 10 Alpha TR_User_Guide_v01.0 02/01/25... -
Page 11: Relay Configuration
Relay Configuration Prior to application of the Alpha TR the following configuration settings must be set to ensure correct relay application. Operating Burden Configuration The Alpha TR high speed tripping relays may be set by the user for low burden or high burden operation. -
Page 12: Electrical Reset Interlock Configuration
The link is shown fitted in the high burden (HB), position. = Low burden operation. = High burden operation – default factory position. Electrical Reset Interlock Configuration On Alpha TR relays fitted with an electrical reset, a selectable Electrical Reset Interlock feature is provided. - Page 13 The Electrical Reset Interlock link is located at the top front of the draw out module and is readily accessible to the user for checking and changing to meet specific system requirements. Page 13 Alpha TR_User_Guide_v01.0 02/01/25 www.morssmitt.com/rms for the latest product information. Due to RMS continuous product improvement policy this information is subject to change without notice.
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Page 14: Alpha Tr Indications
Alpha TR Indications Front Layout The figure below depicts the indications, controls and the reset push buttons on the front of the relay of a fully optioned model. Optional Coil P/U LED The P/U Led illuminates when a pickup voltage is applied to the relay coil. -
Page 15: Commissioning
Commissioning Commissioning Preliminaries Carefully examine the module to ensure that no damage has occurred during transit. Check that the model number and rating information are correct. Insulation The relay, and its associated wiring, may be insulation tested between: - all electrically isolated circuits - all circuits and earth An electronic or brushless insulation tester should be used, having a dc voltage not exceeding 1000V. -
Page 16: Site Commissioning Verification Checklist
Site Commissioning Verification Checklist Observe all site specific standard safety procedures. The following tests are undertaken following the completion of all Alpha TR relay wiring. Preliminary Checks Item Description Complete Confirm all necessary primary equipment isolations Confirm all necessary secondary equipment isolations (including trip outputs) Check panel installation of the Alpha TR relay Check the Alpha TR is wired to the protection design schematic... - Page 17 Item Description Complete The armature assembly may be manually operated using the grub screw adjustment window as depicted. Confirm that fitted mechanical flags drop when the armature assembly is manually operated. On latched contact models confirm that the armature mechanism latches when manually operated. Page 17 Alpha TR_User_Guide_v01.0 02/01/25 www.morssmitt.com/rms...
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Page 18: Operate/Reset Operation
Item Description Complete On latched contact models confirm that the latched contacts are able to be reset using the contact reset push button. Confirm that the fitted mechanical flags are able to be reset. In the non operate state confirm the normally open and normally closed contact states against the relevant relay connection diagram using a suitable continuity tester Manually operate the relay contacts and confirm the contact... - Page 19 Item Description Complete Remove the operate circuit test supply On latching relays perform a manual contact reset and confirm the contact state change with a suitable continuity tester On relays fitted with a mechanical flag reset the flag On relays fitted with an electrical reset circuit, repeat step 5 through to 7 Ensure that the operate circuit test supply is removed Check for operation of the reset circuit by energising the reset...
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Page 20: Protection Scheme Confirmation
Protection Scheme Confirmation Item Description Complete With the tripping relay connected in the tripping scheme perform a trip check of the main protection relay Confirm intended operation of the tripping relay upon operation of the main protection relay On latching relays perform a manual contact reset and confirm the contact state change with a suitable continuity tester On relays fitted with a mechanical flag reset the flag On relays fitted with an electrical reset circuit, repeat steps 1...
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