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In non-railway electrified areas, what type of power supply arrangement should be designed for new installations?
In non-railway electrified areas, what type of power supply arrangement should be designed for new installations?
How should the output supply of diesel generators be connected?
How should the output supply of diesel generators be connected?
What is the primary function of a solar charge controller in a Solar Photo Voltaic System?
What is the primary function of a solar charge controller in a Solar Photo Voltaic System?
What is the purpose of regular cleaning on the surface of solar panels?
What is the purpose of regular cleaning on the surface of solar panels?
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What determines the number of solar panels to be installed?
What determines the number of solar panels to be installed?
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What is the main application of invertors in Solar Photo Voltaic Systems?
What is the main application of invertors in Solar Photo Voltaic Systems?
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Which of the following is NOT a component of a Solar Photo Voltaic System?
Which of the following is NOT a component of a Solar Photo Voltaic System?
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What is the purpose of an auto/manual change-over panel?
What is the purpose of an auto/manual change-over panel?
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In big yards, which of the following shall be installed?
In big yards, which of the following shall be installed?
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Where shall the power supply control panel be provided?
Where shall the power supply control panel be provided?
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Who shall provide and maintain the power supply control panel?
Who shall provide and maintain the power supply control panel?
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How shall the supply from the power supply control panel be extended to various S&T locations?
How shall the supply from the power supply control panel be extended to various S&T locations?
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What shall be provided in Non-Railway Electrified Areas for Colour Light Signalling (CLS) installations?
What shall be provided in Non-Railway Electrified Areas for Colour Light Signalling (CLS) installations?
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What shall be provided in addition to local power supply in Non-Railway Electrified Areas for Colour Light Signalling (CLS) installations?
What shall be provided in addition to local power supply in Non-Railway Electrified Areas for Colour Light Signalling (CLS) installations?
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What facility shall be provided in the power supply control panel?
What facility shall be provided in the power supply control panel?
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How shall the DG sets be operated?
How shall the DG sets be operated?
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What type of fuses should be used to protect against overload/short circuits in underground power cables?
What type of fuses should be used to protect against overload/short circuits in underground power cables?
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What is the purpose of visual indications in power supply distribution?
What is the purpose of visual indications in power supply distribution?
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What type of protection devices are used to protect power equipment against lightning/surges?
What type of protection devices are used to protect power equipment against lightning/surges?
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What is the purpose of a Datalogger in power supply systems?
What is the purpose of a Datalogger in power supply systems?
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What type of filters should be used in battery chargers for axle counters?
What type of filters should be used in battery chargers for axle counters?
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What type of converters can be used to obtain different voltages from a common Battery bank?
What type of converters can be used to obtain different voltages from a common Battery bank?
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What type of power supply system is used at CLS installations?
What type of power supply system is used at CLS installations?
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What is the purpose of auto/manual change-over panels in power supply systems?
What is the purpose of auto/manual change-over panels in power supply systems?
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What should be maintained between the cells in a battery bank?
What should be maintained between the cells in a battery bank?
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What type of acid is recommended for use as an electrolyte in battery banks?
What type of acid is recommended for use as an electrolyte in battery banks?
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When mixing acid and water, what should be added first?
When mixing acid and water, what should be added first?
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What should be used to mix acid and water?
What should be used to mix acid and water?
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When should the capacity test of secondary cells be performed?
When should the capacity test of secondary cells be performed?
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In which type of room should batteries be installed to avoid damage to power equipment due to fumes?
In which type of room should batteries be installed to avoid damage to power equipment due to fumes?
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What is the purpose of installing batteries on wooden racks or insulated masonry surfaces?
What is the purpose of installing batteries on wooden racks or insulated masonry surfaces?
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Who should maintain the record of capacity test of secondary cells?
Who should maintain the record of capacity test of secondary cells?
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What is the recommended formula to derive the current rating of a battery charger?
What is the recommended formula to derive the current rating of a battery charger?
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What should be used to restore the electrolyte level in secondary cells?
What should be used to restore the electrolyte level in secondary cells?
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What is the primary purpose of using a voltage regulator of approved type for AC supply to signal transformers?
What is the primary purpose of using a voltage regulator of approved type for AC supply to signal transformers?
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What should be used to feed signals and track feed chargers, according to the guidelines?
What should be used to feed signals and track feed chargers, according to the guidelines?
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What is the primary reason for keeping batteries away from direct rays of the sun?
What is the primary reason for keeping batteries away from direct rays of the sun?
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What should be used to protect the racks from acid spills, according to the guidelines?
What should be used to protect the racks from acid spills, according to the guidelines?
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Why should batteries be kept properly aligned and numbered?
Why should batteries be kept properly aligned and numbered?
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What type of material shall be used for mixing acid and water?
What type of material shall be used for mixing acid and water?
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What should be done when the level of the electrolyte is below the prescribed level?
What should be done when the level of the electrolyte is below the prescribed level?
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What should be maintained between the cells in a battery bank?
What should be maintained between the cells in a battery bank?
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When mixing acid and water, what should be done to prevent the temperature from exceeding 50°C?
When mixing acid and water, what should be done to prevent the temperature from exceeding 50°C?
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What is the primary reason for installing batteries in a separate room or apparatus case?
What is the primary reason for installing batteries in a separate room or apparatus case?
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Who should perform the capacity test of secondary cells?
Who should perform the capacity test of secondary cells?
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What type of material should be used for flooring and walls in a battery room?
What type of material should be used for flooring and walls in a battery room?
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What type of protection should be used while working on electrolyte?
What type of protection should be used while working on electrolyte?
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What is the primary purpose of providing ventilation in a battery room?
What is the primary purpose of providing ventilation in a battery room?
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What should be available in the battery room?
What should be available in the battery room?
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When should the date of charging be suitably painted on the batteries?
When should the date of charging be suitably painted on the batteries?
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How should the racks for battery installation be protected?
How should the racks for battery installation be protected?
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Why should batteries be kept away from direct rays of the sun?
Why should batteries be kept away from direct rays of the sun?
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What is the purpose of using a voltage regulator of approved type for AC supply to signal transformers?
What is the purpose of using a voltage regulator of approved type for AC supply to signal transformers?
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What is the recommended formula to derive the current rating of a battery charger?
What is the recommended formula to derive the current rating of a battery charger?
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What should be used to feed signals and track feed chargers?
What should be used to feed signals and track feed chargers?
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In what type of room should batteries be installed to avoid damage to power equipment due to fumes?
In what type of room should batteries be installed to avoid damage to power equipment due to fumes?
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What should be used to mix acid and water when preparing the electrolyte?
What should be used to mix acid and water when preparing the electrolyte?
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What is the recommended frequency for performing capacity tests on secondary cells?
What is the recommended frequency for performing capacity tests on secondary cells?
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Why should batteries be kept away from direct rays of the sun?
Why should batteries be kept away from direct rays of the sun?
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What should be used to protect the racks from acid spills?
What should be used to protect the racks from acid spills?
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How should batteries be installed to prevent damage to power equipment?
How should batteries be installed to prevent damage to power equipment?
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What should be maintained between the cells in a battery bank?
What should be maintained between the cells in a battery bank?
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What is the recommended type of acid for use as an electrolyte in battery banks?
What is the recommended type of acid for use as an electrolyte in battery banks?
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What is the primary consideration for designing a battery room?
What is the primary consideration for designing a battery room?
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What material should be used to protect the racks from acid spills in a battery room?
What material should be used to protect the racks from acid spills in a battery room?
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What is the recommended practice for mixing acid and water in a battery room?
What is the recommended practice for mixing acid and water in a battery room?
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Why is it important to maintain a record of capacity tests of secondary cells?
Why is it important to maintain a record of capacity tests of secondary cells?
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What is the primary purpose of installing batteries on wooden racks or insulated masonry surfaces?
What is the primary purpose of installing batteries on wooden racks or insulated masonry surfaces?
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What should be used to restore the electrolyte level in secondary cells?
What should be used to restore the electrolyte level in secondary cells?
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What is the primary reason for keeping batteries away from direct rays of the sun?
What is the primary reason for keeping batteries away from direct rays of the sun?
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What is the recommended practice for aligning and numbering batteries in a battery room?
What is the recommended practice for aligning and numbering batteries in a battery room?
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Where should batteries be installed to avoid damage to power equipment due to fumes?
Where should batteries be installed to avoid damage to power equipment due to fumes?
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What should be used to mix acid and water when maintaining battery banks?
What should be used to mix acid and water when maintaining battery banks?
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What should be used to restore the electrolyte level in secondary cells?
What should be used to restore the electrolyte level in secondary cells?
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Why should batteries be kept away from direct rays of the sun?
Why should batteries be kept away from direct rays of the sun?
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Who should maintain the record of capacity test of secondary cells?
Who should maintain the record of capacity test of secondary cells?
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What should be used to protect the racks from acid spills, according to the guidelines?
What should be used to protect the racks from acid spills, according to the guidelines?
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What should be maintained between the cells in a battery bank?
What should be maintained between the cells in a battery bank?
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What type of acid is recommended for use as an electrolyte in battery banks?
What type of acid is recommended for use as an electrolyte in battery banks?
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Study Notes
Distribution of Power Supply
- Power is distributed from the auto/manual change-over panel to installations/cabins through underground power cables of approved type.
- Proper capacity HRC fuses/Miniature Circuit Breakers (MCBs) are provided to protect against overload/short circuits.
- Visual indications showing availability of power supplies from various feeders are provided for the ASM/Gate man.
- 230 V power supply is distributed to various power equipment through a distribution panel.
- Proper capacity HRC fuses/MCBs, lightening and surge protection devices are provided for protection of the equipment against overload and lightning/surges.
Power Supply Equipment
- All power supply equipment such as battery chargers, transformers, voltage regulators, transformer-rectifier sets, Inverters, Batteries etc. are procured as per approved specifications.
- Battery chargers for axle counters have in-built filters to maintain ripple content below specified value.
- Standby power equipment such as battery chargers, transformers, Voltage regulators, Transformer-rectifier sets etc. may be provided.
- Secondary cells of prescribed capacities are provided for DC circuits.
- DC-DC converters of approved type with isolated outputs may be used to obtain different voltages from a common Battery bank.
- Integrated power supply system of approved type is used at CLS installations.
- Solar Photo Voltaic System/Solar Panels (approved type) may be used as power supply at wayside stations, LC gates in those areas having sufficient sunlight and are not theft prone.
Solar Photo Voltaic System
- A solar panel consists of a number of modules (Typically 12 V each) which are connected in series and parallel configuration to provide a specific voltage and current to charge a battery bank.
- The battery bank supplies necessary power supply to signalling and telecommunication applications.
- Main components of solar photo voltaic system are: • Solar Array • Battery bank • Solar charge controller • Field junction box • Solar Module Mounting Structure • Earthing Kit • Cables
- The number of solar panels to be installed is decided based on requirement of charging current and voltage.
- Regular cleaning is done on the surface solar panels to remove dust.
Non Railway Electrified Area
- For Colour Light Signalling (CLS) installations, local power supply is used as main source of supply.
- In addition, two standby diesel generators shall be installed.
- Initial charging of the batteries shall be done as per instructions of the manufacturer and the date of charging shall be suitably painted on the batteries, or on a separate board kept near the batteries.
- Battery grade sulphuric acid conforming to IS 266, diluted with distilled water conforming to IS 1069 shall only be used as electrolyte.
Installation of Power Supply Equipment
- The power supply equipment shall be installed to facilitate easy replacement of equipment without affecting the other circuits as far as possible.
- AC supply for signal transformers shall be derived from a voltage regulator of approved type.
- Separate Transformer shall be used for feeding signals and track feed chargers.
- The current rating of battery charger may be derived from the formula - Current rating of charger = Load current + AH/10 capacity of cell.
Installation of Secondary Cells
- Secondary cells of approved type shall be used.
- The cells shall be installed as per approved drawings.
- The batteries shall be installed in separate room/apparatus case to avoid damage to power equipment due to fumes.
- The battery room shall be provided with acid proof flooring and acid proof tiles on walls up to a suitable height.
Battery Maintenance and Installation
- Adequate clearance should be maintained between battery cells.
- Initial charging of batteries should be done according to the manufacturer's instructions, and the date of charging should be recorded on the batteries or a separate board.
- Battery-grade sulfuric acid conforming to IS 266, diluted with distilled water conforming to IS 1069, should be used as an electrolyte.
- A glass, porcelain, or acid-proof container should be used for mixing acid and water; metal utensils except lead should not be used as they will contaminate the electrolyte.
- Acid should be added to water while mixing, and the solution should be stirred constantly to prevent its temperature from exceeding 50°C.
- Suitable protection, including goggles, rubber gloves, and an apron, should be worn while working with electrolytes.
Battery Installation
- Secondary cells of approved type should be used, and they should be installed according to approved drawings.
- Batteries should be installed in a separate room or apparatus case to avoid damage to power equipment due to fumes.
- The battery room should be well-ventilated, with acid-proof flooring and acid-proof tiles up to a suitable height.
- Batteries should be installed away from direct sunlight and any heat-radiating equipment.
- Batteries should be installed on wooden racks or insulated masonry surfaces, with acid-proof tiles, and should be properly aligned and numbered.
Power Supply Systems
- Power supply systems should be designed to facilitate easy replacement of equipment without affecting other circuits.
- Maintenance-free cells should be used with chargers suitable for charging maintenance-free cells as per approved specifications.
- AC supply for signal transformers should be derived from a voltage regulator of approved type.
- Separate transformers should be used for feeding signals and track feed chargers.
- The current rating of battery chargers should be calculated using the formula: Current rating of charger = Load current + AH/10 capacity of cell.
Distribution of Power Supply
- The selected supply from the auto/manual change-over panel should be distributed to installations/cabins at the station through underground power cables of approved type.
- Visual indications showing the availability of power supplies from various feeders should be provided for the ASM/Gate man.
- 230V power supply from the auto/manual change-over panel should be distributed to various power equipment through a distribution panel.
- Power supply systems should be monitored through Datalogger as required.
Power Supply Equipment
- All power supply equipment should be procured as per approved specifications.
- Battery chargers for axle counters should have in-built filters to maintain ripple content below the specified value.
- Standby power equipment such as battery chargers, transformers, voltage regulators, transformer-rectifier sets, etc. should be provided.
- Integrated power supply systems of approved type should be used at CLS installations.
Solar Photo Voltaic System
- Solar Photo Voltaic System/Solar Panels of approved type may be used as a power supply at wayside stations, LC gates in areas with sufficient sunlight and are not theft-prone.
- The solar panel consists of a number of modules (typically 12V each) connected in series and parallel configuration to provide a specific voltage and current to charge a battery bank.
- Main components of solar photo voltaic system include solar array, battery bank, solar charge controller, field junction box, solar module mounting structure, earthing kit, and cables.
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Description
This quiz covers the arrangements and safety measures for distributing power supply to installations and cabins at a station, including the use of approved cables and protective devices.
