Specification for Interoperable Distributed Power Wireless ... · PDF fileDPWCS fitted on AC tap-changer locomotives ... of MU coupler of WAG7 loco and Brief Details of ... 34 Conventional

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Issued on xx/xx/2017 Spec. No. RDSO/2017/EL/SPEC/xxxx, Rev. 0
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GOVERNMENT OF INDIA MINISTRY OF RAILWAYS
Specification for
Interoperable Distributed Power Wireless Control System
for Electric Locomotives
Specification No. RDSO/2017/EL/SPEC/xxxx Rev. 0 Issued on xx/xx/2017
Prepared by Checked by Issued by
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ELECTRICAL DIRECTORATE
Approved by Signature
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Issued on xx/xx/2017 Spec. No. RDSO/2017/EL/SPEC/xxxx Rev. 0
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RESEARCH, DESIGNS & STANDARD ORGANISATION MANAK NAGAR, LUCKNOW 226 011

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INDEX
SN Item Page no
1 Chapter-I General Page 4 to 9
2 Chapter-II Technical details Page 10 to 14
3 Chapter-III Functional requirements Page 15 to 23
4 Chapter-IV Design requirements Page 24 to 26
5 Chapter-V Testing proving & field trials Page 27 to 29
6
Chapter-VI Requirements for interoperability among same & different make, Brake interface of DPWCS with ac locomotives & Standard screen layout
Page 30 to 33
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Chapter-VII Communication protocol for interoperability, Brake interface of DPWCS with IRAB brake system & Standard screen layout for DPWCS fitted on AC tap-changer locomotives
Page 34 to 47
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Chapter-VIII Communication protocol for interoperability, Brake interface of DPWCS with E70/CCB brake systems & Standard screen layout for DPWCS fitted on three phase locomotives
Page 48 to 64
Annexure-I
Details of Type of signals flowing through wires of MU coupler of WAG7 loco and Brief Details of IRAB-1 brake system (Extracts from WAG7 loco manual)
Annexure-II Details of various nodes and conditions to followed reaching in that state (node) for 3-phase locomotives
Annexure-III Details for Radio/Antenna of DPWCS/Data sheet

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CHAPTER-I
GENERAL
1.0 OBJECT & SCOPE
1.0.1 Electric locomotives working on Indian Railways are provided with electrical wire coupler at both ends to facilitate working in multiple units (MU).There are wire couplers at both ends of locomotives. All electrical control commands are transmitted to trailing locomotives through these wire couplers. Fault status & important supervision information of trailing locos is also passed through these wire coupler to leading loco for the information/display of driver.
1.0.2 By providing Distributed Power Wireless Control System (DPWCS) using Radio Frequency (RF) technology shall facilitate control of trailing/remote locos from leading locomotive without wire connection.
1.0.3 Distributed Power Wireless Control System (DPWCS) for electric locomotives is a method to increase throughput (or line capacity) of a railway line with minimal incremental inputs. The remote loco may be kept at any point in the train formation for example, anywhere in middle, at rear etc.
1.0.4 This specification covers design, development, supply & commissioning of
Distributed Power Wireless Control System (DPWCS) for 25 kV AC conventional electric locomotives namely WAG5 A/B/C/HA/HB and WAG7 (will be called in group as conventional locos). Similar for three phase locomotives namely WAG9 and WAG9H (will be called in group as three phase locomotives).
1.0.5 The primary objectives of this system are
(i) To enable full control of remote locos (or consists) placed in middle and/or rear of train based on the driver initiated actions in lead loco through wireless control.
(ii) To have smoother train operation by reducing coupler forces.
(iii) To have smaller braking distance and quick brake release for long haul freight trains.
1.0.6 As far as operational requirement is concerned, it is same for conventional as well
as three phase locos. The special requirement for conventional locomotives is given in chapter VII and the special requirement for three phase locomotive is given in chapter VIII.
1.0.7 This specification also aims at interoperability of different makes for similar class of locos fitted with DPWCS. For example DPWCS fitted in conventional Locos namely

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shall be interoperable with DPWCS of different make fitted in any type of conventional loco. Similarly, DPWCS fitted in three phase locos shall be interoperable with DPWCS of different make in any type of three phase loco.
1.1 Definitions and meaning of terms:
For the purpose of this specification, the following definitions shall apply:
SN Term Meaning
1 Tenderer /Supplier/ Manufacturer
The Firm or company who submits the offer for supply of equipment as per this specification
2 Contractor Any Firm or Company with whom the order for supply of the equipment as per this specification shall be placed or intended to be placed
3 Purchaser Any unit of Indian Railway
4 RDSO Research Designs and Standards Organization, Ministry of Railway, Manak Nagar, Lucknow 226011
5 CLW Chittaranjan Locomotive Works, Chittaranjan (WB)-713331
6 Inspecting Officer A person nominated by the purchaser to inspect the equipment on his behalf or the representative of the Inspecting Officer so nominated
7 MU Consist
2 or more locomotives (up to max. 4 locos) coupled together and connected through wired couplers. This is also referred in brief as consist
8 Master/Lead Locomotive
Locomotive attached at the head of the train. In case of MU consist at the head of train, Lead locomotive means the foremost locomotive of the MU consist.
9 Trail or Remote Locomotive
Locomotive placed at a location other than leading position in a train consist. In case of MU consist, trail or remote locomotive is the foremost loco of the MU consist and controlled by Master/lead loco through radio.
10 Closed Coupled Operation
Lead and trail locos coupled together and operating together through wireless link. This is also referred in brief as Wireless consists.
11 Remote Control Operation
Lead consist located at head of train and remote consists separated from lead consist and located inside and/or end of train. In such case, lead loco of each consist shall be equipped with DPWCS for operating through wireless link.
12 Synchronous Remote Control
Simultaneous repetition & execution of commands, given by lead locomotive to trail locomotive by a wireless link, such as traction, air braking, dynamic braking or any other function performed by the driver of the lead unit and duplicated in trailing units.
13 Electric Loco Shed
Facility provided on the Indian Railways for upkeep of electric locomotives where periodic schedule maintenance as well as unscheduled maintenance of locomotives is carried out.

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SN Term Meaning
14 Block Section A portion of running line where only one train is allowed to operate at a time on one track. The entry and exit from the block section is controlled by appropriate signals.
15 Neutral section
A portion of overhead equipment (OHE) in electrified section which is dead i.e. neither charged nor earthed. Such section is provided between two portions of OHE, which are fed by different phase .There are different types of neutral section in Indian Railways, each type having different length. In all types of neutral sections, opening of 25 KV Circuit breaker of loco (called DJ hereinafter) is must. For guidance of driver caution & reminder boards are placed at 500m and 250 m ahead of neutral section followed by DJ open board at the location where DJ should be opened. After negotiating neutral section, DJ should be closed on DJ close board
16 BP Brake pipe 17 FP Feed pipe 18 BC Brake Cylinder 19 ER Equalizing Reservoir 20 AFI Air flow indicator 21 DPWCS Distributed Power Wireless Control System
22 E-70 Brake control A brake control system, which is proprietary to M/s Faivley, equipped in WAG9/WAG9H class of locomotives.
23 CCB A computer controlled brake system, which is proprietary to M/s Knorr Bremse, equipped in WAG9/WAG9H class of locomotives.
24 UHF Ultra High Frequency 25 GPS Global Positioning System 26 DPC Distributed Power Control 27 WPC Wireless Planning & Co-ordination Wing, Govt. of India 28 OEM Original Equipment Manufacturer 29 GTKM Gross Tonne Kilo-Meter 30 ER Equalizing Reservoir 31 MVB Multifunction Vehicle Bus 32 RF Radio Frequency 33 TE/BE Tractive Effort/Braking Effort 34 Conventional loco WAG5/WAG7 type loco 35 Three phase loco WAG9/WAG9H/WAG9HC
1.2 CONTRACTOR'S RESPONSIBILITY:

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Specification for Interoperable Distributed Power Wireless ... · PDF fileDPWCS fitted on AC tap-changer locomotives ... of MU coupler of WAG7 loco and Brief Details of ... 34 Conventional