system works knowledge sharing
Post on 03-Jul-2015
458 Views
Preview:
DESCRIPTION
TRANSCRIPT
MMC CORPORATION BERHAD GAMUDA BERHAD
KNOWLEDGE SHARINGSYSTEM WORK
PRESENTED BYMOHD ZAMIR ABDUL RAHMAN
QUANTITY SURVEYOR
INTRODUCTION
PURPOSE OF
TRACTION & POWER
SUPPLY
EQUIPMENTS &
FUNCTIONS
JMI PROCEDURE
ISSUES/PROBLEM
RELATED DURING
JMI
TRACTION & POWER SUPPLY (TPS)
MMC CORPORATION BERHAD GAMUDA BERHAD
MMC CORPORATION BERHAD GAMUDA BERHAD
INTRODUCTION
Electric power from a generating station is transmitted to grid substations using a three-phase distribution system.
At the grid substation, a step-down transformer is connected across two of the three phases of the high-voltage supply.
The transformer lowers the voltage to 25 kV which is supplied to a railway feeder station located beside the tracks
MMC CORPORATION BERHAD GAMUDA BERHAD
Power Supply is used for signalling operation, communication equipment, station and buildings, etc
Receive electrical power from TNB, transform it to the required voltage and distribute it to electric trains continuously along the railway.
Requirement for Traction Power:
Reliability
Availability
Maintainability
Safety
MMC CORPORATION BERHAD GAMUDA BERHAD
132Kv/25Kv Power Transformer
This transformer is installed in a traction sub-stations along side the rail track and is used to feed 25KV.
AC power to railway electric locomotives. It will receive from TNB Power Supply 132 and reduce the voltage to 25 Kv using the transformer.
MMC CORPORATION BERHAD GAMUDA BERHAD
Circuit Breaker 132/25 Kv
A circuit breaker in a substation is a form of protection, designed to break fault current (the large volume of current that flows when a fault is detected.
A protection device used to protect equipment from damage and people from dying, that may be in contact.
MMC CORPORATION BERHAD GAMUDA BERHAD
Circuit Switchgear 25 Kv
A switchgear has the main function of protecting a circuit. This also provides the isolation of circuits from power supplies thus protecting the people working.
To maintain it and enhancement of the system availability by allowing more than one electric current source to flow through a load.
MMC CORPORATION BERHAD GAMUDA BERHAD
Isolator / Disconnector
To ensure that an electrical circuit is completely de-energised for service or maintenance.
High-voltage isolation switches are used in electrical substations to allow isolation of apparatus such as circuit breakers, transformers, and transmission lines, for maintenance.
MMC CORPORATION BERHAD GAMUDA BERHAD
Voltage & Current Transformer
Used for measurement of alternating electric currents. When current in a circuit is too high to apply directly to measuring instruments.
A current transformer produces a reduced current accurately proportional to the current in the circuit.
MMC CORPORATION BERHAD GAMUDA BERHAD
Control & Protection Panel
To control and protect all equipment in the modular buildings
Consist of relays, cabling, metering panels, battery and other equipments inside the panels.
MMC CORPORATION BERHAD GAMUDA BERHAD
Prefabricated Modular Building
Consist of equipment, protection panel, battery room, RTU cabinet, comm’s rack, circuit breaker, disconnector.
Located at each Feeder Station (FS) along the railway track and also Mid Point Track Section Location (MPTSL), DFL & TCBL.
MMC CORPORATION BERHAD GAMUDA BERHAD
Remote Terminal Unit (RTU)
Brain to the equipments inside Modular Building and at the trackside. For communication at the trackside.
Install at each Feeder Station (FS) along the railway track and also Mid Point Track Section Location (MPTSL), DFL & TCBL.
MMC CORPORATION BERHAD GAMUDA BERHAD
JMI PROCEDURE
Request For Inspection (RFI) being issued by
BBASJV
KSET will review JMI document & drawings
Going to site & do inspection with KSET,
BBAS & MGJV
Comment by KSET and put under SNAGLIST
KSET will sign JMI document after
inspection. BBAS needs to rectify SNAGLIST before
T&C
MMC CORPORATION BERHAD GAMUDA BERHAD
MMC CORPORATION BERHAD GAMUDA BERHAD
An overhead line or overhead wire is used to transmit electrical energy to the trains.
Electric trains that collect their current from overhead line use a device such as a pantograph
It presses against the underside of the lowest overhead wire, the contact wire.
Current collectors are electrically conductive and allow current to flow through to the train and back to the feeder station
MMC CORPORATION BERHAD GAMUDA BERHAD
As the contact wire makes contact with the pantograph, the carbon insert on top of the pantograph is worn down.
On straight track, the contact wire is zigzagged slightly to the left and right of centre at each successive support so that the pantograph wears evenly
Dropper wires provide physical support of the contact wire without joining the catenary and contact wires electrically.
MMC CORPORATION BERHAD GAMUDA BERHAD
InsulatorREW wire Contact Wire Catenary Wire
Dropper Wire
OCS Mast
Overhead Catenary System
MMC CORPORATION BERHAD GAMUDA BERHAD
OCS Mast
Erected to convey REW wire and contact and catenary wire.
A soil test will be carried out first then an auger machine will drill a hole to required depth.
They will check before mast been put and lastly concreting work to strengthen the mast.
MMC CORPORATION BERHAD GAMUDA BERHAD
Pre-Wiring
Consist of aluminum tube with clip and bracket used to hold the
contact and catenary wire.
Also attached with insulator to divide the contact system into some unattached electrical departments.
MMC CORPORATION BERHAD GAMUDA BERHAD
Wiring
Used to supply electricity power to the train.
Consist of contact & catenarywire attached at cantilever.
Made from copper wire cause it is a good conductor.
A wiring train that have a drum cable will be used in this activity.
MMC CORPORATION BERHAD GAMUDA BERHAD
Registration
After finish install pre wiring and wiring work, a team will do registration works.
They will check the height and stagger and all bracket were tighten to ensure that everything install smoothly.
MMC CORPORATION BERHAD GAMUDA BERHAD
Dropper Wire
Dropper wires traditionally provide physical support of the contact wire without joining the contact and catenary wires electrically.
Dropper Wire
MMC CORPORATION BERHAD GAMUDA BERHAD
Balance Weight
Catenary wires are kept at a mechanical tension because the pantograph causes mechanical oscillations.
The wave must travel faster than the train to avoid producing standing waves that would cause wire breakage.
By using balance weight and tensioning the line will makes waves travel faster.
MMC CORPORATION BERHAD GAMUDA BERHAD
Drop Tube
Usually installed at station where mast cannot be used to hold the wire.
Made from steel structures to give more stability to hold contact & catenary wire.
MMC CORPORATION BERHAD GAMUDA BERHAD
APC Magnet
The APC magnet instructs an electric locomotive to open the circuit breaker and switch back afterwards.
Ease of installation and de-mounting of this super-strength low-maintenance magnet saves significant time and money.
MMC CORPORATION BERHAD GAMUDA BERHAD
Motorised Isolator RTU
To isolate an electrical section
High-voltage isolation switches are used in electrical substations to allow isolation of apparatus such as circuit breakers and transformers, and transmission lines, for maintenance.
MMC CORPORATION BERHAD GAMUDA BERHAD
Neutral Section
Short insulated dead overhead equipment separating sectors fed by two adjacent substations which are normally connected to different phases.
The neutral section is a dead zone and therefore, the locomotive has to negotiate the section in momentum.
The locomotive is switched off while negotiating the neutral section to avoid flash over.
MMC CORPORATION BERHAD GAMUDA BERHAD
Track Bonding
Current discharge path to track to prevent imbalance current.
All equipment attached to the rails shall be designed to withstand the currents and voltages associated with the electric traction current
INTRODUCTION
EQUIPMENTS &
FUNCTIONS
JMI PROCEDURE
ISSUES/PROBLEM
RELATED DURING
JMI
SIGNALLING
MMC CORPORATION BERHAD GAMUDA BERHAD
MMC CORPORATION BERHAD GAMUDA BERHAD
INTRODUCTION
Signalling is a device by which the movement of the train is controlled.
Purpose of Signalling:
Operating rail traffic, safely, speedily and economically
Increasing line capacity
Providing systems on safe principles
Preventing conflict movement on trains
MMC CORPORATION BERHAD GAMUDA BERHAD
EQUIPMENTS & FUNCTIONS
Signalling cable
- To connect all equipments to the
trackside. Power supply cable consist of 4 Core (6mm) diameter.
Point Machine
- An electro mechanical device attached
to turnouts to provide remote operation capability, thus allowing different routes for trains to be set.
MMC CORPORATION BERHAD GAMUDA BERHAD
EQUIPMENTS & FUNCTIONS
Automatic Train Protection
- A safety system comprises of track
mounted equipment which relays speed information to the train equipment and the drivers cab.
Axle Counter
- A detection point comprises two
independent sensors, detect the direction of a train by the order in which the sensors are passed.
MMC CORPORATION BERHAD GAMUDA BERHAD
EQUIPMENTS & FUNCTIONS
Precast Foundation
- Foundation for Signalling equipment
cases such as EB, DB, TPCP, LSC, Signal.
Track Circuit
- To detect the condition of the track
segment which is occupied or not. Consist of a power supply & the system works under all weather condition.
MMC CORPORATION BERHAD GAMUDA BERHAD
EQUIPMENTS & FUNCTIONS
Signal Post
- Carries signal lights unit consisting
one or more aspects. Made of steel structures.
Signal Head
- Signal head consist of red, yellow &
green lights. Gives the train driver necessary order & warning about the track.
MMC CORPORATION BERHAD GAMUDA BERHAD
EQUIPMENTS & FUNCTIONS
Equipment Box (EB)
- Consist of power supply, relays and
terminal rack for signalling equipments.
Distribution Box (DB)
- Consist of power supply, relays and
terminal rack for signalling equipments.
MMC CORPORATION BERHAD GAMUDA BERHAD
EQUIPMENTS & FUNCTIONS
Technician Point Control Panel (TPCP)
- Consist of power supply to control the
point machine operation.
SER Equipment Room
- Monitoring all signalling equipments at the trackside. Located at the station.
MMC CORPORATION BERHAD GAMUDA BERHAD
EQUIPMENTS & FUNCTIONS
Block Line Side Cabinet (LSC)
- Control signalling equipments at
trackside but with less equipments. Consist of relays, terminal rack & power supply.
Station Line Side Cabinet (LSC)
- Control signalling equipments at
trackside but with many equipments. Consist of relays, terminal rack & power supply.
MMC CORPORATION BERHAD GAMUDA BERHAD
EQUIPMENTS & FUNCTIONS
Level Crossing
- A safety barrier to stop all the traffic
and clear the track so train can pass by. Consist of traffic light and barrier also with alarm sound.
Uninterruptible Power Supply (UPS)
- For back-up if there is a power failure
and to avoid any interruptions on the systems traffic. Consist of Power Module & Battery Module.
MMC CORPORATION BERHAD GAMUDA BERHAD
EQUIPMENTS & FUNCTIONS
Industrial Computer
- To monitor all equipments, detect any
failure from equipments. Located at station master office.
Shunter Panels/Local Control Panel
- Used for shunter to get acceptance for
signal such as shunt signal.
INTRODUCTION
EQUIPMENTS &
FUNCTIONS
JMI PROCEDURE
ISSUES/PROBLEM
RELATED DURING
JMI
COMMUNICATIONS
MMC CORPORATION BERHAD GAMUDA BERHAD
MMC CORPORATION BERHAD GAMUDA BERHAD
INTRODUCTION
The primary purpose of the communications system is to rapidly transport data and voice signals for particular subsystems between passenger stations and halts, operational facilities, electrification facilities and CTC.
The secondary purpose is to present information to various end-users in desired formats.
Digital Transmission System comprises 24-core fiber optic cable system to be installed along the railway route. All voice and data traffic throughout the system is carried within this DTS.
MMC CORPORATION BERHAD GAMUDA BERHAD
INTRODUCTION
Main System:-
Digital Transmission System (DTS) / Backbone or Fiber-Optic Trunk
Subsystems:-
Private Automatic Branch Exchange (PABX) – internal telephone network
PAX Type Signal Post Telephone (SPT) – wayside telephone network
Passenger Information System (PIS) - PIDS & PA System
Closed Circuit Television (CCTV) & Station SCADA
Video Wall System – CTC mimic panel
Primary Master Clock System – for standardization of time
Uninterruptible Power Supply (UPS) & Power Surge Protector
Data Transmission for systems by others
MMC CORPORATION BERHAD GAMUDA BERHAD
MMC CORPORATION BERHAD GAMUDA BERHAD
Private Automatic Branch Exchange (PABX)
To provide voice communication to all stations, halts, new railway offices, CTC office, new depots, workshops, feeder Station buildings and Line side cabinets.
MMC CORPORATION BERHAD GAMUDA BERHAD
Passenger Information Display System (PIDS)
The system will provide free-format information on the running of trains. This information will be displayed in key areas of stations and halts
Type A1 Display – Terminal
Type A2 Display – Waiting Hall
Type A3 Display – Platform at Station
Type A4 Display – Main entrance
MMC CORPORATION BERHAD GAMUDA BERHAD
Public Address System (PA)
The Long Line Public Address System will allow a central point to make announcements (by announcer or voice synthesizer)
To remote stations and halts either independently or in groups.
MMC CORPORATION BERHAD GAMUDA BERHAD
Telephone System (PABX)
To provide voice communication within the railway premise among railway personnel and the passengers.
MMC CORPORATION BERHAD GAMUDA BERHAD
CCTV
The purpose of CCTV is to provide surveillance of critical locations throughout the rail system for security purposes, crowd control and safety of passengers.
MMC CORPORATION BERHAD GAMUDA BERHAD
Centralized Clock System
The purpose of the Centralized Clock System is to provide real time synchronization of the sub-systems that may require accurate real time information.
MMC CORPORATION BERHAD GAMUDA BERHAD
24 Core Fibre Optic Cable
To connect all equipment at the platform such as CCTV, speaker, PIDS and other Commsequipments.
MMC CORPORATION BERHAD GAMUDA BERHAD
ELECTRIFIED DOUBLE TRACK PROJECT
IPOH - PADANG BESAR
top related