Signal Laboratories

Description:
Block Signalling Lab has various types of block instruments being used on Indian Railways. Both Table top miniature models, actual Instruments & Various parts of the equipments give clear idea including inaccessible parts. Digital Flexi charts depict detailed circuits of these Block Instruments and related accessories.

This lab has the following equipments:

• Single Line
• Token Instruments - Neal's Ball Token Instrument
• Tokenless instruments
1. Push Button Type
2. Frequency Modulation (Handle) Type : Diodo Type
• Double Line Block Instruments of Makes:
  • Bycula Work shop (Central Railway)
  • Podanur Work shop (Southern Railway)
• Block Working through Axle counters :
• UFSBI with panel for S/L (Deltron make)
• UFSBI with Token Block Instrument (Deltron make)
• SSBPAC S/L (Efftronics make)
• SSBPAC D/L (Efftronics make)
• Axle Counter Block Working (CEL make)
• Intermediate block signalling with Auto TOL feature.
• Automatic Block Signalling.

Description:
This lab has the following models/equipments.

• Relays - Shelf type, Track, Plug in type, Siemens, Lamp checking relays etc.
• Relay Interlocking of following version.
• Metal to Carbon (British) type - route setting type(knob type), Route setting type(pushbutton type)
• Metal to Metal (Siemens) type - Non route setting type, Route setting type.(Push button type)
• Electronic Interlocking MLK - II (Ansaldo Make), K5BMC (Kyoson make) Westrace MK-II, ME1633 (Medha make)
• Data Logger (Efftronic Make)
• Integrated Power supplies (IPS) – Amar Raja, HBLnife.
• Misc: Battery Chargers & Ferro Resonant Transformers

Description:
This lab has the following equipments:

• Audio Frequency Track Circuits (AFTC)
• Non-Coded : UM71, ABB (T1-21)
• Coded : ALSTOM (DTC-24), Siemens (FGTS-46ST)
• Axle Counters
• Anaolg Axle Counters
• Universal Axle Counters 3D
• Universal Axle Counters 4D
• Digital Axle Counters
• Single Section Axle Counters (SSDAC)
• CEL Make
• GG TRONICS Make
• MEDHA Make
• ELDYNE Make
• Multi Section Axle Counters (SSDAC)
• ELDYNE make
• FRAUSCHER ACS-2000 make
• FRAUSCHER FAdC make
• SIEMENS make
• GG TRONICS Make
• Train Protection Systems
• Ansaldo -
• Onboard Computer
• Line Side Electronic Unit
• Siemens -
• Onboard Computer
• Line Side Electronic Unit
• TPWS Interoperability
• Ansaldo OBC
• Thales LEU

Description:
This lab has equipments being used mostly in Out door on Indian Railways

This lab contains the following equipments:

• Two Road Class B Station with Std III P.I: With MACLS.
• Motor Operated Point layouts – with Siemens , IRS rotary Type (LH , RH types), clamp type point machine(Gorakhpur make).
• Modified and Integrated LED signals of different makes
• Junction type route indicator with LED units.
• Multi lamp(efftronics make) and stencil type route indicators.
• 3 and 4 aspect MACLS with Cascading, Shunt signal unit.
• LC gates- Electrical lifting barriers (Mettuguda, Heitz makes).
• Insulation joints and glued joints
• Universal , UQ and LQ Signal mechanisms, wire operated point mechanisms, Double wrie levers assembly, compensators for wires and roddings, Unit wrie detectors, Double wire rotary detectors.
• Semaphore Signal spectacles, A type, B type and UQ.
• Placement of MACLS in D/L, S/L for different Standards of Interlocking.
• Facing Point Locks, Hand Plunger lock and E-type locks.
• Mechanical Lever Frames : Double wire (48 lever), Direct Type Lever (12 levers), Catch Handle Type Lever Frames.
• 2 Road MG layout with STD-I interlocking, LQ with mechanical disengager operated by direct Lever Frame SA530, points locally operated, points secured by Hand Plunger locks.
• Swing type LC gate.
• Mechanical Lifting Barrier.
• Misc : Electrical key transmitter (RE/Non RE), IRS style B post type reverser, Lever locks and circuit controllers.
• DC Track Circuits RE / Non-RE bench model and Live sleeper short fault finding.
• Electrical Point Detector, Signalling Cables and Cable Meggering.

Signalling

• Power supply is the heart of the signaling system,has a vital role to play in the functioning of Railway Signalling System. There are a number of equipment which are associated with signals, and failure of power supply may lead to failures of these equipment which may cause heavy delays to traffic. With the advent of arrangements like Integrated Power Supply (IPS) systems cases of blanking of signals have been reduced considerably. The non-conventional energy sources like Solar energy is also being harnessed for signalling installations in non-electrified and hill areas of Indian Railways.
• In power systems lab, the various makes of Integrated Power Supply systems (IPS) are provided with auto changeover arrangements as available in station. The lab has been newly setup to provide complete idea of power supply arrangements of Signalling & Telecom equipment.
• The trainee will get to know the various power supply arrangements, it’s maintenance, lightning and Surge protection systems and failure attention and hands on practice of attending failure.
• Solar panels are also provided for trainees to have acquaintance with non-conventional energy sources and it’s maintenance.

This lab has the following equipment's:
• Integrated Power Supply systesm
• Amararaja make
• HBL Nife make
• Solar panels with charge controller
• Class A protection
• Low maintenance battery – 55 main battery + 5 spare cells
• Surge protection devices – wired and display models.

• Power supply arrangements for Telecom requirements of OFC hut, CCEO of control, Telephone Exchange, Train Radio Systems etc. is provided for trainees to have hands on experience on installation, maintenance & troubleshooting of power supply systems.
• 48V, 25A SMPS chargers as per RDSO spec RDSO/SPN/TL/23/99, Ver 4.0, two numbers for hands-on training and one number of SMPS charger for demo purpose to understand the internal PCBs, SPDs (B&C protection schemes) have been provided.
• 24x2V, 120 AH & 200 AH VRLA battery banks as per spec. IRS S 93/96, two numbers have been provided.
• 12.5 KVA DG set with a change-over panel as per the conditions of usage of generator as standby or main supply in way station.
• Flexi charts indicating Block diagram of SMPS charger, VRLA battery schematic and advantages & limitations of VRLA have been provided for appreciation of trainees.

Description:
KAVACH Lab is equipped with three OEMSKavach equipments are installed for imparting training. The various makes of Kavach equipments are

1. KERNEX MAKE
2. HBL MAKE
3. MEDHA MAKE