SMI & MI
About us
In The Field Of Traction Distribution There Was A Need Of Common Platform To Share The Various Specifications And Design Parameters, Drawings, Maintenance Instructions, Circulars Being Standardized By Various Regulators Mainly IR For Developing The Technical Knowledge Base Among It’s Professionals. Also Reliability Is One Of The Major Concern Among TRD Professionals And Anticipation Of Any Probable Abnormalities/Preventive Maintenance Is One Of The Key Responsibility Of TRD Professionals.
Our mission
Railway Transportation has emerged as a most convenient and cost effective mode of transportation as a form of METRO in shorter distances and medium and high speed trains in the form of medium and longer distances.
Contact_us
- IRTRD.IN1@GMAIL.COM
- IRTRD.IN@GMAIL.COM
smi & mi detailing here
Failure of 25 kV pedestal insulator and to use only solid core support insulator.
Use of disk insulator in place of 9-T solid core insulators of 25 kV ac OHE.
Failure of 9-t insulator due to non provision of double eye distance rod at BWA location.
Winch type regulating equipment.
Periodical maintenance instruction & trouble shooting guidelines for capacitor bank.
Development of 107 mm2 silver bearing copper contact wire (silver contents 0.1%)
Overhead equipments (OHE) on turn out/cross over to avoid panto entanglements.
3:1 Ratio, 3 Pulley type regulating equipment.
Contact wire in out of run OHE.
Provision of pipe on HEX Tie Rod of auto Tensioning Device (ATD).
Provision of insulated cadmium Copper catenary wire under over line structure on 25kV ac traction system. However this instruction has superseded by RB letter No. 2003/RE/161/1/Vol. III/Pt. dated 19.06.2017 and could be referred on TRD circulars and Technical Discussions pages.
Maintenance instruction for OHE contact wire and associated fittings.
Inspection test schedule for traction power transformer.
Schedule of periodic overhauling of traction transformer.
Maintenance instructions for measuring the severity of pollution by brush wash method.
Maintenance instructions for lightning arresters.
Testing of 25 KV porcelain & composite insulators before installation.
Instruction for 8-wheeler tower wagons covering instructions for DETC & DHTC.
Special Maintenance Instruction for 4-wheeler tower car.
Guidelines for overhead hopper/chute/crane loading/unloading of rakes in electrified sidings.
Application of technology in the field of loading/unloading mechanism
Maintenance instructions for Gas Auto tensioning device.
Special maintenance instructions for provision of dis connector assembly to the lightning arresters provided over 25 KV side traction system on Indian Railways.
Special maintenance instructions for precautions while splicing insulated Cadmium-Cupper catenary wire. Since this is the extension of SMI TI/MI/0036 mentioned above after the failure of same due to poor work manship in Srirangam-Tiruchchirapalli Town stations of Southern Railway on dated 17.08.2012. But after the incidence of Surat-Udhna section of Western Railway on dated 24.05.2017 the use of Insulated Catenary wire has restricted completely. Hence this instruction is also taken to be superseded. Please refer TRD circular and Technical Discussions column for better insight and recent instruction of RB No. 2003/RE/161/1/Vol. III/Pt dated 19.06.2017 of the use of contact wire piece in place of it.
Tolerances and Limits in 25KV AC OHE installation with 65/107 sqmm Catenary and Contact with tension 1000Kg/1000Kg
Prevention from Bird Menance on Traction Installation (OHE and PSI)
Special Maintenanace Instructions for 4 Wheeler Tower Wagon
Pre and Post Monsoon precautions for Traction Installations
Maintenance Instructions for 25KV Vacuum Circuit Breaker and Interrupter
Mintenance Instructions for Identification of defects on Traction Installation Equipments using Thermo Vision Camera
Instruction for Booster Transformer & return conductors in 25 KV AC traction system.
Guidelines for design of fixed compensation for improving power factor at 25 KV, 50 Hz Traction sub-station.
Action taken by Division/Zone in case of porcelain insulator failure.
Instruction for use of cupper cross feeders at switching station.
Instruction for splicing of 19/3.99 mm Aluminium conductor (spider).
Guidelines operating procedures of TSS in Mumbai area.
Instruction for action to be taken for failure prone insulators, insulators suspected to be failure prone and those to retained in service.
Action to be taken by Divn/OHE depots for handling of composite insulators.
Instructions for use of DRPC on Indian Railways.
Application of lubrication on wire rope used with ATD.
Guidelines for parallel operation of traction transformer on IR.
Guidelines on protection scheme with parallel operation of 2×21.6 MVA traction transformer.
Application of existing panto flash over relay at TSS for single line section on IR.
Instruction for load profile, current & voltage harmonics measurement & recording in 25 KV AC traction sub-station.
Instruction for timely replacement & upgradation of computers at RCC of traction SCADA system on IR.
Instruction for increasing data transfer sped of the traction SCADA system on IR from 600/1200 bps to min. 9600 bps.
Setting guidelines for traction transformer & 25 KV shunt capacitor bank protection relay developed as per RDSO specification no. TI/SPC/ PSI/ PROTCT/6070(09/08) for 25 KV AC TSS.
Instructions for operating RTUs with power supply of 110 V DC (in place of 240 V AC) for existing traction SCADA system on IR.
Instruction for monitoring & analysis of Feeder Circuit Breaker Tripping for 25 KV AC Traction systems.
Technical Instructions for improving reliability of traction SCADA systems on IR
Protection scheme and relay setting guidelines for 25 KV AC traction sub-station provided with 30 MVA traction transformer
Technical instructions on maintenance practices to be adopted for numerical type microprocessor based protection relay modules for 25 KV AC traction system on Indian Railways
Implementation of feeder circuit breaker backup feature in different makes/types of feeder protection modules provided in C & R panels as per old RDSO Spec. No. ETI/PSI/65 (01/97).
Technical instructions on important aspects of relay settings of Vectorial Delta-I relays as per RDSO Specification No. TI/SPC/PSI/PROTCT/1982.
Technical instructions related to the installation and commissioning of the 42 KV metal oxide gapless lightning arresters provided on traction systems on Indian Railways.
Special maintenance instruction for setting up earthing station at switching posts (SSP & SP).
Special maintenance instruction for setting up earthing station at switching posts (SSP & SP).
