Star Delta Transformers Ltd

Market Cap: ₹ 183 Cr

About the company:
Star Delta Transformers (SDTL) is a leader in the manufacturing, supplying, erecting, testing, and commissioning of Power and Distribution transformers. SDTL is an ISO 9001-2008 certified company and follows structured processes for the entire business processes right from the basic design to manufacturing and installation as its continuous drive towards total Quality Management Systems.

SDTL has been enhancing its capabilities in infrastructure and production capacity regularly and currently has an authorized annual manufacturing capacity of more than 1000 MVA. The company has also entered global markets with exports to countries like Azerbaijan, Myanmar, Afghanistan, etc.

Established in the year 1980 Star Delta Transformers is known for the excellence of its services in the field of manufacturing electrical transformers for power & distribution.

The company’s Transformer Testing Lab is certified by the National Accreditation Board for Testing and Calibration Laboratories (NABL) following “General Requirements for the Competence of Testing & Calibration Laboratories”, ensuring a world-class Quality Assurance System. SDTL has obtained Bureau of Indian Standards (BIS) licenses up to Energy Efficiency Level -3 Aluminium Wound Three phase Outdoor Type Distribution Transformers.

Business Overview:
The company is a dynamic and versatile organization that operates across the entire spectrum of transformer-related services. From the meticulous manufacturing of Power and Distribution transformers to their seamless supply, precise erection, and thorough testing, the company ensures a comprehensive approach to meeting the energy needs of various industries. The company apart is a specialization in crafting Special/Custom transformers, showcasing expertise in Auto, Converter, Earthing, Furnace, Generator, Instrument, Rectifier, Traction, and other bespoke transformer solutions. This broad range of offerings demonstrates a commitment to addressing diverse and unique requirements in the field. With a focus on quality assurance through rigorous testing and the meticulous commissioning of transformers, the company is a reliable partner in delivering tailored solutions for a wide array of applications, contributing significantly to the evolving landscape of power and energy systems.

Product Portfolio:
Single Phase Transformers

A transformer is a device that converts magnetic energy into electrical energy. It consists of two electrical coils called primary winding and secondary winding. The primary winding of a transformer receives power, while the secondary winding delivers power. A magnetic iron circuit called “core” is commonly used to wrap around these coils. Though these two coils are electrically isolated, they are magnetically linked.

An electric current when passed through the primary of a transformer then a magnetic field is created, which induces a voltage across the secondary of a transformer. Based on the type of application, the single-phase transformer is used to either step up or step down the voltage at the output. This transformer is typically a power transformer with high efficiency and low losses.

Here are the key components and features of a single-phase transformer:
Core: The transformer core is typically made of laminated iron or steel. It provides a low reluctance path for the magnetic flux generated by the primary winding.
Primary Winding: The primary winding is the coil connected to the input voltage source. When an alternating current (AC) flows through this winding, it produces a varying magnetic field in the core.
Secondary Winding: The secondary winding is the coil connected to the load or output circuit. The varying magnetic field induced by the primary winding in the core generates an electromotive force (EMF) in the secondary winding, transferring electrical energy to the load.
Voltage Transformation: The primary and secondary windings have different numbers of turns, allowing the transformer to step up or down the voltage. The turns ratio determines the voltage transformation ratio.
Step-up transformer: If the secondary winding has more turns than the primary winding, the voltage is stepped up.
Step-down transformer: If the secondary winding has fewer turns than the primary winding, the voltage is stepped down.
Isolation: Transformers provide electrical isolation between the primary and secondary circuits. This isolation helps protect the connected devices from potential differences in ground potential and enhances safety.
Cores and Windings Configuration:
Shell-type transformers have the core surrounded by both primary and secondary windings.
Core-type transformers have the windings wound around the core.

Technical Specifications:

Transformer Types and Ratings:
CRGO Silicon Steel Transformers: Up to 5 to 100 KVA
Amorphous Metal Transformers: Up to 167 kVA
Applicable Standards:
IS (Indian Standard)
IEC (International Electrotechnical Commission)
ANSI (American National Standards Institute)
JIS (Japanese Industrial Standards)
Other relevant standards
Cooling:
ONAN (Oil Natural Air Natural)
OA (Oil-Air) cooling methods
Insulating Fluid:
Mineral Oil to specification
Frequency:
50 Hz, 60 Hz
Winding Material:
Copper / Aluminium
Taping Range:
± 5% in steps of 2.5%
Other tapings as required
Impedance:
In line with applicable standards
Single Phase Transformers:
Stardelta configuration
Standard Fittings:
Pole Mounting Brackets
Lifting Lugs
Pressure Relief Device/Self Venting Top Cover
Tank Grounding Provision
Rating and Diagram Plate
HV & LV Bushings with fittings
Optional Fittings:
Lightning Arrester / Arcing Horns
High Voltage Neutral Bushing
Terminal Connectors
Tap changer for external operation
Cable Terminations
Complete Self-Protection feature

Working on Single-phase Transformer:

The basic working principle of a transformer is quite simple. It consists of two inductors (or coils) that are wound around a common iron core. When an alternating current (AC) flows through the first coil (the primary winding), it creates a magnetic field. This, in turn, induces a voltage across the second coil (the secondary winding). The ratio of the number of turns in the primary winding to the number of turns in the secondary winding is known as the transformer’s turns ratio. This determines the amount of voltage transformation that takes place.

There are two types of single-phase transformers: step-up and step-down. A step-up transformer increases the voltage, while a step-down transformer decreases it. In either case, the current is reduced in proportion to the increased (or decreased) voltage.

The single-phase transformer is a very versatile and essential equipment in many industries. By understanding the different parts of the transformer, you can better maintain and operate this critical piece of machinery. The single-phase transformer is composed of the following parts: the core, the primary winding, the secondary winding, the insulation, and the yoke. Each part plays an important role in transformer operation. By understanding the function of each component,

Three-Phase Distribution Transformer

A three-phase distribution transformer is a type of transformer used in electrical distribution systems to change the voltage levels of power for efficient transmission and distribution.
Here are some key points about three-phase distribution transformers:

Three-Phase System:
Three-phase distribution transformers are designed to work with three-phase electrical systems. In a three-phase system, three conductors carry alternating current with a 120-degree phase difference between them.
Voltage Transformation:
The primary function of a distribution transformer is to transform voltage levels. These transformers are used to step down high-voltage electricity from the transmission lines to lower voltage levels suitable for distribution to homes, businesses, and industries.
Construction:
Three-phase distribution transformers typically consist of three separate primary and secondary windings. Each winding corresponds to one phase of the three-phase system. The windings are usually wound around a common magnetic core.
Delta and Wye Connections:
The windings in a three-phase distribution transformer can be connected in either delta or wye configuration, depending on the application and the desired output voltage. Delta connections are commonly used in high-voltage transmission, while wye connections are more common in distribution systems.
Cooling Systems:
Distribution transformers are equipped with cooling systems to dissipate heat generated during operation. Common cooling methods include oil-immersed transformers with natural or forced oil circulation, as well as dry-type transformers that use air as the cooling medium.
Ratings:
Transformers are rated based on their capacity and voltage levels. The ratings include the apparent power (in volt-amperes, VA, or kVA), voltage ratios, and current-carrying capacity.
Applications:
Three-phase distribution transformers are widely used in power distribution networks to provide electricity to homes, commercial establishments, and industrial facilities. They play a crucial role in reducing voltage for safe and efficient use.
Efficiency and Regulation:
Transformer efficiency is an important factor, and manufacturers strive to design transformers with high efficiency to minimize energy losses. Voltage regulation is also a key consideration to ensure that the output voltage remains within specified limits under varying load conditions.
Monitoring and Protection:
Distribution transformers may be equipped with monitoring and protection devices to ensure safe and reliable operation. These devices can include temperature sensors, pressure relief devices, and protective relays.

The operation of a three-phase distribution transformer involves the basic principles of electromagnetic induction. Here's a step-by-step explanation of how a three-phase distribution transformer works:
Primary Side:
The transformer takes in three-phase high-voltage electricity from the power distribution grid on the primary side. The primary winding, which consists of three coils, is connected to these three-phase power sources.
Electromagnetic Induction:
When three-phase alternating current (AC) flows through the primary winding, it produces a magnetic flux in the transformer's core. According to Faraday's law of electromagnetic induction, a changing magnetic field induces a voltage in a nearby conductor.
Magnetic Core:
The transformer's core is typically made of laminated iron or steel to enhance magnetic properties. The magnetic core serves to efficiently transfer the magnetic flux generated by the primary winding to the secondary winding.
Secondary Side:
On the secondary side, there is another set of three coils, forming the secondary winding. The magnetic flux induced in the core by the primary winding cuts across the turns of the secondary winding, inducing a voltage in the secondary coils.
Voltage Transformation:
The turn ratio of the primary winding to the secondary winding determines the voltage transformation. For a step-down transformer (which is common in distribution systems), the secondary voltage is lower than the primary voltage. The voltage transformation is proportional to the turn ratio.
Output to Distribution System:
The transformed voltage on the secondary side is then supplied to the distribution system for further transmission to homes, businesses, and industrial facilities. This lower voltage is safer and more suitable for general use.
Load Connection:
Electrical loads, such as appliances and machinery, are connected to the secondary winding. The transformer ensures that the electrical power is delivered at the appropriate voltage level for the safe and efficient operation of these loads.
Balanced Operation:
In a three-phase distribution transformer, it's essential to maintain balance among the three phases. The transformer is designed to handle the three phases equally, ensuring that the output voltages remain balanced under normal operating conditions.
Efficiency and Losses:
The transformer may experience some energy losses in the form of heat due to resistance in the windings and core losses. Transformer efficiency is crucial, and designers aim to minimize losses to ensure that a significant portion of the electrical power is delivered to the load.

Technical Specification:
Transformer Ratings:
CRGO Transformers: Up to 2500 kVA
Amorphous Core Transformers: Up to 1000 kVA
Applicable Standards:
IS (Indian Standard)
IEC (International Electrotechnical Commission)
ANSI (American National Standards Institute)
JIS (Japanese Industrial Standards)
BS (British Standards)
Cooling:
ONAN (Oil Natural Air Natural) Cooling
OA (Oil-Air) Cooling
Insulating Fluid:
Mineral Oil to specification
Frequency:
50 Hz, 60 Hz
Polarity:
As specified
Voltage:
Primary Voltage: Up to 33 kV
Secondary Voltage: 415 V, 433 V (Other Voltages as required)
Winding Material:
Copper / Aluminium
Taping Range:
± 5% in steps of 2.5% (Other tapings as required)
Impedance:
In line with applicable standards
Solar Configuration:
Star-Delta
Standard Fittings:
Pole Mounting Brackets/Tanks Base Channels
Lifting Lugs & Jacking Lugs
Tank grounding Provision
Rating and Diagram Plate
HV & LV Bushings with fittings
Silica-gel Breather
Filter Valve
Circuit Tap Changer
Earthing Terminals
Thermometer Pockets
Optional Fittings:
HV / LV Cable Boxes
Pressure Relief Device
On Load Tap Changer with RTCC (Remote Tap Changer Control)
Oil Temperature Indicator
Double Float Buchholz Relay
Disconnecting Chambers
Winding Temperature Indicator
Magnetic Oil Level Gauge
Epoxy / Touch-proof Bushings with connectors
Siphon Thermo Filter
Conservator
Lightning Arrester
Arcing Horns
Terminal Connectors
Protective Fuse
Secondary Circuit Breaker
Bird Guard

A three-phase distribution transformer operates based on the principles of electromagnetic induction, transforming high-voltage, three-phase AC power from the primary side to lower-voltage, and three-phase power on the secondary side for distribution to end-users. The transformer facilitates the safe and efficient transmission of electrical energy in power distribution networks.

Power Transformer

Power transformers transform electrical voltage from one level or phase to another. Typically, it steps down the voltage ratio from a higher to a lower level. Like other transformers, power transformers work on the magnetic induction principle between coils to convert voltage or current levels to another voltage or current level. It includes a broad range of electrical transformers, such as control transformers, autotransformers, current transformers, general-purpose transformers, distribution transformers, instrument transformers, potential (voltage) transformers, and isolation transformers.

Here are key aspects of power transformers:
Voltage Transformation:
Step-Up Transformer: Increases voltage from the generator to transmission levels for long-distance power transmission.
Step-Down Transformer: Decreases voltage to distribution levels for safer and more practical use in homes and industries.
Basic Structure:
The core: Typically made of laminated steel sheets to reduce eddy current losses.
Windings: Coil structures made of conductive material (copper or aluminum) wrapped around the core.
Insulating materials: Separate the windings and insulate them from the core to prevent short circuits.
Working Principle:
Transformers operate on the principle of electromagnetic induction. AC voltage applied to the primary winding induces a magnetic field in the core, which, in turn, induces a voltage in the secondary winding.
Efficiency:
Power transformers are designed to be highly efficient, minimizing energy losses during the transformation process.
Cooling Systems:
Large power transformers may include cooling systems such as oil or forced-air cooling to dissipate heat generated during operation.
Applications:
Power transformers are used in power generation plants, substations, and electrical grids for voltage transformation and power distribution.
Types of Power Transformers:
Distribution Transformers: Serve to step down voltages for local distribution.
Power Transformers are used in the transmission network to step up or down voltages.
Instrument Transformers: Provide accurate measurements of voltage and current for protective relaying and metering.
Maintenance:
Regular maintenance is essential to ensure the proper functioning of power transformers. This may include checking insulation, oil levels, and the condition of the core and windings.
Transformer Protection:
Transformers are equipped with protective devices to safeguard against overloads, short circuits, and other faults that could damage the transformer or disrupt the power supply.

Power transformers have a wide range of uses in electrical systems, spanning power generation, transmission, and distribution. Here are some of the primary applications of power transformers:
Power Generation:
Power transformers are used in power plants to increase the voltage generated by electrical generators to levels suitable for long-distance transmission. These transformers, known as step-up transformers, help minimize energy losses during transmission.
Transmission and Distribution:
In the power grid, power transformers play a crucial role in transmitting electricity efficiently over long distances. Step-up transformers are used at the power plant, while step-down transformers are employed at substations to reduce voltage to levels suitable for distribution to homes and industries.
Voltage Regulation:
Power transformers help regulate voltage levels within the power grid, ensuring that electricity is delivered at the appropriate voltage for various applications. This is essential for maintaining the stability and reliability of the electrical supply.
Industrial Applications:
Many industrial processes require a stable and reliable power supply. Power transformers are used to step down high-voltage electricity from the grid to levels suitable for industrial machinery and equipment.
Commercial and Residential Distribution:
Distribution transformers are commonly found in neighborhoods and cities, stepping down voltage to levels suitable for use in homes, businesses, and commercial establishments.
Renewable Energy Integration:
Power transformers are crucial for integrating renewable energy sources, such as wind and solar power, into the grid. They help match the variable output of these sources with the grid's demand by transforming and regulating voltage levels.
Isolation and Safety:
Transformers provide electrical isolation between different parts of the power system, enhancing safety by preventing direct electrical contact. This is particularly important in industrial and residential settings.
Instrumentation and Measurement:
Instrument transformers, a type of power transformer, are used for accurate measurement of voltage and current in power systems. They provide signals for protective relaying, metering, and control systems.
Backup Power Systems:
Power transformers are employed in backup power systems, such as emergency generators, to step up or step down voltage as needed for critical applications during power outages.
Railway Electrification:
Power transformers are used in railway systems to convert high-voltage AC power from the grid to the appropriate levels needed for trains.
Ratings:
CRGO - Up to 25 MVA (Mega Volt-Ampere)
Applicable Standards:
IS (Indian Standards)
IEC (International Electrotechnical Commission)
ANSI (American National Standards Institute)
JIS (Japanese Industrial Standards)
DIN (Deutsches Institut für Normung - German Institute for Standardization)
BS (British Standards) and others
Cooling:
ONAN (Oil Natural Air Natural)
ONAF (Oil Natural Air Forced)
Insulating Fluid:
Mineral Oil to specification
Frequency:
50 Hz, 60 Hz
Polarity:
As specified
Voltage:
Primary Voltage: Up to 66,000 V
Secondary Voltage: 33,000 V, 11,000 V (Other Voltages as required)
Winding Material:
Copper
Taping Range:
Circuit & On-load tap changers as per customer specification
Impedance:
In line with applicable standards
Standard Fittings:
Lifting Lugs
Skid Base / Roller Arrangement
Rating and Diagram Plate
HV & LV Bushings with fittings
Oil level Gauge
Silica gel Breather
Drain/Filter Valves
Thermometer
Pressure Relief Device/Explosion vent
Optional Fittings:
Terminal Connectors
Magnetic Oil Level Gauge
Oil Temperature Indicator
Winding Temperature Indicator
Buchholz Relay
RTCC Panel (Remote Tap Changer Control)
Condenser Type Bushing for voltage class of 33 kV & 66 kV
Off-circuit Tap Switch / On-load Tap Changer with RTCC
HV / LV Cable Boxes
Disconnecting
Epoxy / Touch-proof Bushings with connectors
Siphon Thermo Filter
Conservator
Lightning Arrester
Arcing Horns
Protective Fuse
Secondary Circuit Breaker
Bird Guard
Power transformers are essential components in the infrastructure of electrical power systems, enabling the efficient generation, transmission, distribution, and utilization of electrical energy in various sectors.

Extra High Voltage Transformers
SDTL manufactures EHV Power Transformers of voltage class up to 132 KV using advanced technology & state of the art machinery. Windings are made on automatic machines, and the core & coil assembly are dried in a vacuum drying oven with a capacity of 70 cubic meters. Transformers are rigorously tested at each stage using modern testing types of equipment. The company has already supplied more than 20 EHV transformers with up to 40 MVA ratings which have been successfully operating for more than 5 years

Extra High Voltage (EHV) transformers are specialized transformers designed to handle higher voltage levels, typically ranging from 220 kV (kilovolts) and above. These transformers play a crucial role in the transmission and distribution of electrical power over long distances. Here are some key points about Extra High Voltage transformers:
Voltage Levels: EHV transformers are designed to work with voltage levels higher than those handled by standard transformers. While definitions may vary, voltages of 220 kV and above are generally considered as Extra High Voltage.
Transmission of Power: EHV transformers are primarily used in the transmission network to step up the voltage of electrical power generated at power plants. This higher voltage reduces energy losses during long-distance transmission.
Step-Up and Step-Down Transformers: In power systems, EHV transformers can function as step-up transformers, increasing the voltage for transmission, or as step-down transformers, reducing the voltage for distribution to end-users.
Grid Interconnections: EHV transformers are often employed in interconnecting different electrical grids or networks. These transformers facilitate the transfer of power between regions or countries with different voltage levels.
Oil-Cooled and Gas-Insulated Designs: EHV transformers are typically oil-cooled to manage the heat generated during operation. In some cases, gas-insulated designs may also be used to minimize the size of the transformer and improve its efficiency.
High Insulation Levels: Due to the high voltages involved, EHV transformers require robust insulation systems to prevent electrical breakdown and ensure the safe and reliable operation of the transformer.
Monitoring and Control Systems: EHV transformers are often equipped with advanced monitoring and control systems to ensure efficient operation, diagnose potential issues, and enhance overall reliability.
Maintenance Challenges: Maintenance of EHV transformers can be challenging due to their size and the high voltages involved. Regular inspections, testing, and preventive maintenance are essential to ensure their continued performance.
Specialized Applications: EHV transformers are crucial components in the power grid, especially in applications where power needs to be transmitted over long distances with minimal losses.
Grid Stability and Reliability: The deployment of EHV transformers contributes to grid stability and reliability by enabling the efficient and reliable transfer of large amounts of electrical power across the transmission network.

Technical Specifications:
Ratings:
CRGO - Up to 40 MVA
Applicable Standards:
IS, IEC, ANSI, JIS, DIN, BS, etc.
Cooling:
ONAN (Oil Natural Air Natural)
ONAF (Oil Natural Air Forced)
Insulating Fluid:
Mineral Oil to specification
Frequency:
50 Hz, 60 Hz
Polarity:
As specified
Primary Voltage:
66 KV, 110 KV, 132 KV (as per customer specification)
Secondary Voltage:
66 KV, 33 KV (Other Voltages as required)
Winding Material:
Copper
Taping Range:
Off-circuit and On-load tap changers as per customer specification
Impedance:
In line with applicable standards


Standard Fittings:
Lifting Lugs
Skid Base / Roller Arrangement
Rating and Diagram Plate
HV & LV Bushings with fittings
Oil level Gauge
Silica gel Breather
Drain/Filter Valves
Thermometer
Pressure Relief Device / Explosion vent

Optional Fittings:
Terminal Connectors
Magnetic Oil Level Gauge
Oil Temperature Indicator
Winding Temperature Indicator
Buchholz Relay
RTCC Panel
Condenser Type Bushing for voltage class of 33 kV & 66 kV
Off-circuit Tap Switch / On-load Tap Changer with RTCC
HV / LV Cable Boxes
Disconnecting
Epoxy / Touchproof Bushings with connector
Siphon Thermo Filter
Conservator
Arcing Horns
Aircell
Neutral CT

Successfully Completed Projects:
EMCO (Nashik/Jalgaon):
20 MVA 66/11KV (Quantity: 9)
10 MVA 110/33KV (Quantity: 4)
Remarks: New
MPPTCL (Jabalpur):
20 MVA 132/33KV (Quantity: 4)
40 MVA 132/33KV (Quantity: 3)
Remarks: Complete Rebuilding
Nakoda Ispat Ltd. (Raipur):
25 MVA 132/11KV (Quantity: 1)
Remarks: New
Hira Ferro Alloys Ltd. (Raipur):
25 MVA 11/33KV (Quantity: 1)
Remarks: New

Solar/Wind Transformers
Transformers play a crucial role in both solar and wind energy systems by facilitating the conversion, distribution, and transmission of electrical power. Here's how transformers are used in these renewable energy systems:

Solar Energy Systems:
PV Array Transformers: In a solar photovoltaic (PV) power plant, transformers are used to step up the voltage generated by the PV arrays. This higher voltage is more suitable for efficient long-distance transmission.
Inverter Transformers: Inverters are used to convert the direct current (DC) generated by solar panels into alternating current (AC) suitable for grid connection. Transformers are often employed to adjust the voltage levels as needed for grid integration.
Distribution Transformers: Once the power is fed into the grid, distribution transformers are used to step down the voltage for local distribution and consumption.

Wind Energy Systems:
Generator Transformers: In a wind turbine, the generator produces electrical power at a relatively low voltage. Transformers are used to step up this voltage to a level suitable for transmission over long distances.
Collector Substation Transformers: Wind farms consist of multiple turbines, and the power generated needs to be collected and transformed for grid connection. Collector substations use transformers to consolidate and adjust the voltage before sending it to the grid.
Grid Connection Transformers: These transformers ensure that the wind farm's power is synchronized with the grid and that the voltage levels are compatible for distribution.

Grid Integration:
Step-Up Transformers: Both solar and wind power plants often use step-up transformers to increase the voltage before feeding the power into the grid. This is done to minimize transmission losses over long distances.
Grid Transformers: At various points in the grid, transformers are used for voltage transformation to match the requirements of different segments of the electrical network.
Transformers in both solar and wind energy systems help optimize power transmission, enhance efficiency, and ensure the seamless integration of renewable energy into the existing power infrastructure. Additionally, advancements in transformer technology, such as smart transformers, can provide monitoring and control capabilities, contributing to grid stability and reliability.

Special Purpose Transformers

Transformers are used whenever there is a requirement to convert voltage from one level to another. However, these requirements can vary depending on the application. The requirement of voltage and current can sometimes be very specific for a particular application and that’s where special purpose transformers are used. Notable among the top-tier special-purpose transformer Manufacturers in Pune and Mumbai, Trutech Products provides the best quality power transformers that are customized to needs. Numerous machines, relays, and motors need special voltage ratings to work smoothly and these specialized transformers deliver exactly that.

Solar
Transformerming India & Transformerming Technology
While about 10,000 MW is expected to be from wind power, the balance is to be realized by solar and other renewable energy systems. The Electricity Act 2003 mandates state electricity boards to adopt a minimum percentage for procurement of electricity from renewable energy sources. Accordingly, about 13 state electricity regulatory commissions have initiated action to meet this requirement.

Realizing this vast potential, The company has built this solar photovoltaic power plant under the framework of Renewable Energy Certificates (REC) launched by the Government of India through the Central Electricity Regulatory Commission (CERC). The framework is to allow the project developers in solar energy to sell electricity to any licensee or on the open market at the standard rate and sell environmental components in the form of REC on the power exchanges at market rates but within a pre-decided range. Generated power will be sold to private power licensees in the state of Madhya Pradesh.

The plant site is situated in the district of Rajgarh in Madhya Pradesh, India. The district has been identified independently by MPUVN as having better potential for putting up grid-connected solar power plants, considering solar insolation and the quality of the grid. The entire district is reported to receive a fair amount of sunshine throughout the year. The solar farm site topography is generally a flat terrain. Power will be sold to the private licensee in the state as per the terms of the power purchase agreement to be made between the producer and the licensee.

SDTL Solar: Harnessing Sunshine for a Sustainable Future
India, with its tropical climate, is abundantly endowed with sunshine, making solar energy a crucial aspect of the post-fossil fuel era. Recognizing this immense potential, Star Delta Transformers Ltd. (SDTL) and its sister concern, M/s Gupta Sons (GSONS), have taken strides in solar power generation.

Solar Power Plant in Rajgarh, Madhya Pradesh:
In the district of Rajgarh, Madhya Pradesh, SDTL and GSONS have established a grid-connected solar power generation plant, marking a significant contribution to India's renewable energy landscape.

Phased Commissioning:
Phase 1: 0.5 MWp commissioned on 27th March 2012 - Under GSONS
Phase 2: 0.5 MWp commissioned on 12th October 2012 - Under SDTL
Phase 3: 1.25 MWp commissioned on 28th March 2013 - Under GSONS
This phased approach demonstrates the commitment of both SDTL and GSONS to expanding the installed capacity and actively participating in the growth of solar energy infrastructure.

Solar REC Trading:
In June 2012, M/s Gupta Sons achieved a significant milestone by becoming the second entity in India to trade Solar Renewable Energy Certificates (RECs). This achievement highlights their pioneering role in the industry and underscores the financial incentives associated with renewable energy trading.

Government Initiatives:
The Ministry of New and Renewable Energy (MNRE), Government of India (GOI), has been a driving force behind the promotion of new and renewable energy sources. As outlined during the 11th five-year plan (2007-2012), the government's vision aims to add 14,000 MW capacity from renewable power generation. This underscores the national commitment to sustainable energy development.

Exports: Star Delta is constantly striving to expand its horizon, standing committed to delivering products and services at par with international quality standards. Always looking to cater to customers from varied sectors across the globe, the company is now expanding globally to countries like the Middle East, Europe, and Africa. This expansion reflects a dedication to growth and serving a diverse range of customers in different regions. Adhering to international quality standards positions Star Delta as a reliable and competitive player in the global market. The company recognizes the importance of careful planning, adaptation to local business environments, and building strong relationships with local partners to ensure the success of its international expansion. Staying agile and responsive to market dynamics, coupled with a continuous focus on innovation and a customer-centric approach, will be crucial in navigating the complexities of the global business landscape.

Ongoing Projects
New Substations under ADB Scheme, Rewa Region, MPPKVVCL, Jabalpur
Supply, Erection, Testing & Commissioning of 33/11KV 11 Nos. new Substations(3.15/5MVA) in Rewa, Satna, Shahdol&Sidhi districts in M.P.
Associated 33 & 11 KV Lines on PCC Poles.
Bifurcation of 33 KV Double-circuit lines on H-Beams.
33KV Lines for Power Evacuation from newly constructed 132/220KV EHV Substations.

Projects undertaken:
a) Bhusawal TPS Expansion Project 2X500 MW, MSPGCL, Mumbai
b) Substations under JBIC Scheme, Narsingpur District, MPPKVVCL
c) Substations under JBIC Scheme, Shahdol District, MPPKVVCL
d) Erection & Commissioning of DTR 11/0.4 KV Substations under APDRP
e) Substation at Sagar Medical College

Successfully Completed
Bhusawal TPS Expansion Project 2X500 MW, MSPGCL, Mumbai
2 No. Substations with 16 MVA, 11/6.9 KV Transformers & 1150 KVA Earthing Transformers at Bhusawal, Maharastra.
Substations under JBIC Scheme, Narsingpur District, MPPKVVCL, Jabalpur
Supply, Erection Testing & Commissioning of 9 No. new 33/11KV Substations with 3.15 & 5 MVA transformers, 11 &33 KV associated line-work under JBIC scheme at Narsingpur, Madhya Pradesh
Substations under JBIC Scheme, Shahdol District, MPPKVVCL, Jabalpur
Supply, Erection Testing & Commissioning of 5 No. new 33/11KV Substations with 3.15 & 5 MVA transformers, 11 &33 KV associated line-work under JBIC scheme at Shahdol, Madhya Pradesh
Erection & Commissioning of DTR 11/0.4 KV Substations under APDRP Scheme
300 Nos, 11/.433 KV substations with 63 to 315 KVA transformers in 19 districts of East Madhya Pradesh under the APDRP Scheme.
Substation at Sagar Medical College, Sagar
Complete Installation of substation including supply of 3 Nos. 2500 KVA transformers. LT & HT Cable work and civil work at Sagar Medical College, Sagar, Madhya Pradesh

Opportunities:
Governmental Focus on Rural Electrification: Increased government focus on rural electrification presents a significant opportunity for companies involved in transformers. This can lead to a higher demand for transformers to support the expansion of electricity infrastructure in rural areas.
Healthy Growth in the Market: The healthy growth in the market for transformers in generation, transmission, and distribution networks indicates an opportunity for companies to capitalize on the increasing demand for these products.
Innovation and Adoption of New Technologies: Companies that are innovative and embrace new technologies have an opportunity to differentiate themselves in the market. This could involve developing more efficient transformers, incorporating smart technologies, or improving design parameters.
Diverse Product Range: A wide product range allows the company to cater to different segments of the market and meet varying customer needs, contributing to increased market share and revenue.

Threats:
Stiff Competition: The presence of stiff competition in the market poses a threat, as companies must continually strive to differentiate themselves and maintain or gain market share.
Pricing Pressure: Pricing pressure can be a significant threat, especially if the market becomes saturated or if competitors engage in price wars. This may impact profit margins and financial stability.
Design Parameters: Adherence to design parameters is crucial for transformer performance and safety. Failure to meet these parameters can lead to product failures, safety issues, and damage to the company's reputation.

Risks:
Initiatives to Address Concerns: While initiatives to address concerns are positive, there is a risk that these may not be successful or may take time to yield results. The effectiveness of these initiatives in addressing competition, pricing pressure, and design parameters needs careful monitoring.
Market Dynamics: Changes in market dynamics, such as shifts in regulations, technological advancements, or unforeseen economic downturns, can pose risks to the company's operations and market position.
Supply Chain Disruptions: Dependency on a complex supply chain for raw materials and components exposes the company to the risk of disruptions. Events like natural disasters, geopolitical tensions, or global supply chain challenges can impact the availability of critical inputs.
Emerging Risks: The statement acknowledges the possibility of other risks emerging in the future. These could include factors like geopolitical uncertainties, regulatory changes, or unforeseen technological disruptions.

Manufacturing Capacity:

Location: The company's facility is located in Industrial Area, Bhopal.
Manufacturing and Testing: The facility is equipped to manufacture and test transformers. Specifically, it can handle transformers up to 40 MVA (Mega Volt-Amps) with a voltage class of 132 KV. It also has the capability to manufacture and test 11 & 33 KV Class Transformers in both Single Phase and 3 Phase configurations, up to 25 MVA.
132 KV Class Transformers (3 Phase): The facility is capable of manufacturing and testing 132 KV Class Transformers in 3 Phase configuration, with a capacity of up to 40 MVA.
Installed Capacity: The company has an installed capacity of 1000 MVA per shift per annum. This indicates the total amount of transformer capacity that can be produced within a given time frame (per shift) and is measured in Mega Volt-Amps.
Range of Transformers: The company's production capabilities cover a range of transformers, from lower voltage classes like 11 & 33 KV, to higher voltage classes like 132 KV. The transformers can be both Single Phase and 3 Phase, with varying capacities up to 40 MVA.

The company operates in two main segments: Manufacturing of Transformers and Solar Power.
Manufacturing of Transformers:
Product Range: The manufacturing division produces a wide range of transformers, including Single Phase Transformers, 3 Phase Transformers, Power Transformers, Extra High Voltage Transformers, Solar/Wind Transformers, and Special Purpose Transformers.
Market Presence: The company serves various Electricity Boards in states such as Madhya Pradesh, Chhattisgarh, Maharashtra, Orissa, Rajasthan, and Andhra Pradesh.
Customer Base: The company supplies transformers through direct orders from Discoms and also collaborates with major private contractor companies such as L&T, BHEL, Bajaj Electricals, Genus Infra Power Ltd., Blue Star Ltd., Vindhya Telelinks Ltd., Angelique International Company Ltd., Bharat Electricals, Sangli, Fedder Liyod Ltd., KEI Industries Ltd., EPC Division, BLA Power, BGR Energy, KEC International Industries, Hydro Power Corporation, Madhya Pradesh Power Transmission Company Limited, etc.
Experience and Reputation: With over 45 years of experience and reliable after-sales service, the company has gained trust and become a prominent player in Central India.
Solar Power:

Solar Power Plant: The company has established a 500 KWp PV On-grid Solar Power Plant in Gagorni village, Rajgarh district of Madhya Pradesh.
Commissioning and Mechanism: The plant was commissioned on October 12th, 2012, under the Renewable Energy Certificate (REC) Mechanism, with an annual generation capacity of 7.5 Lakhs units.
Financial Performance: During the fiscal year 2022-23, the solar power plant produced 474,612 units, generating revenue of Rs. 45,46,016/-. This indicates a positive financial performance in the solar segment.
Future Plans: The company has expressed intentions to set up additional solar power plants as part of its expansion plans.
In conclusion, the company operates in two diverse segments, and its performance in each segment seems to be positive. The manufacturing division's extensive product range and established reputation contribute to its success, while the solar power segment has shown promising results with plans for future expansion. Depending on specific analysis goals, you may want to delve deeper into financial metrics, growth projections, or other relevant factors for a more comprehensive assessment of each segment's performance.
Financial Highlights:

Board of Directors:

Kishore Gupta

Nature of Directorship: Chairman & Managing Director
Relationship: Brother of Rakesh Gupta and father of Mayank Gupta.
Directorship in Listed Companies: Star Delta Transformers Limited (Promoter, Executive Director)
Membership and Chairmanship of Committees: NIL
Number of Shares Held: 586,260 (19.54% of paid-up share capital)
Rakesh Gupta
Nature of Directorship: CFO & Whole-time Director
Relationship: Brother of Kishore Gupta
Directorship in Listed Companies: Star Delta Transformers Limited (Promoter, Executive Director)
Membership and Chairmanship of Committees: 2 Memberships
Number of Shares Held: 563,940 (18.80% of paid-up share capital)
Mr. Mayank Gupta
Nature of Directorship: Executive Director
Relationship: Son of Kishore Gupta
Directorship in Listed Companies: Star Delta Transformers Limited (Promoter, Executive Director)
Membership and Chairmanship of Committees: NIL
Number of Shares Held: 428,300 (14.28% of paid-up share capital)
Mrs. Shalini Mathur
Nature of Directorship: Women Independent Director
Relationship: No inter-se relationship with any of the directors
Directorship in Listed Companies: Star Delta Transformers Limited (Non-executive, Independent Director)
Membership and Chairmanship of Committees: 1 Membership
Number of Shares Held: 1,000 (0.03% of paid-up share capital)
Mr. Ajay Gupta
Nature of Directorship: Independent Director
Relationship: No inter-se relationship with any of the directors
Directorship in Listed Companies: Star Delta Transformers Limited (Non-executive, Independent Director)
Membership and Chairmanship of Committees: 1 Membership, 1 Chairmanship
Number of Shares Held: 1,000 (0.03% of paid-up share capital)
Mr. Ankur Chouksey
Nature of Directorship: Independent Director
Relationship: No inter-se relationship with any of the directors
Directorship in Listed Companies: Star Delta Transformers Limited (Non-executive, Independent Director)
Membership and Chairmanship of Committees: 2 Memberships, 1 Chairmanship
Number of Shares Held: NIL
Shareholding Pattern [Numbers in percentages]

Industry Overview:

India's economy has been soaring at an impressive pace, positioning itself to become the third-largest economy by 2030. The country's power infrastructure has been expanding by leaps and bounds, leading to a surge in demand for electricity and power generation. As transformers play a crucial role in the power grid, the Indian transformer market is projected to experience a CAGR of 5 percent from 2020 to 2025. The burgeoning demand for power is not the only driving force behind this growth; the expansion of transmission and distribution systems is also leveraging the transformer market in India.
Furthermore, the transformer industry plays a vital role in the power sector, and the industry has been experiencing a range of trends that are shaping its future. Let’s explore some of the transformative trends that are impacting the transformer industry in India.

The outlined government strategies and industry trends in India are contributing significantly to the transformation of the transformer market. Here's a summary:

Government Initiatives: The Indian government is actively addressing electricity supply and demand imbalances through policies like the Deen Dayal Upadhyaya Gram Jyoti Yojana, the Integrated Power Development Scheme, and the National Electricity Fund. These initiatives are expected to positively impact the transformer market by improving power generation, promoting energy conservation, and enhancing distribution infrastructure.
Quality Standards: The government's mandate for transformers to meet Bureau of Indian Standards (BIS) Certification requirements ensures improved quality and reliability of locally manufactured transformers, instilling confidence in the market.
Digitization and Automation: The integration of digital technologies such as AI, machine learning, and the Internet of Things is revolutionizing the transformer industry. Smart transformers, equipped with real-time monitoring and regulation capabilities, enhance efficiency and reduce errors in the manufacturing process.
Energy Efficiency: With a focus on reducing the carbon footprint, the industry is developing energy-efficient transformers. The use of materials like amorphous metal with low energy loss is becoming more prevalent, aligning with the government's ambitious environmental targets.
HVDC Technology: The adoption of High Voltage Direct Current (HVDC) technology enables efficient long-distance electricity transmission with minimal losses. This technology offers cost-effectiveness, flexibility, and improved monitoring, particularly for long-range transmission where traditional AC connections may not be feasible.
Adoption of New Technologies: Transformer manufacturers are embracing advanced manufacturing techniques such as 3D printing and increased automation. These technologies lead to reduced lead times, improved accuracy, enhanced efficiency, and overall increased productivity in the manufacturing process.
Transformer Industry in India

The Indian transformer industry is more than five decades old, hence mature. Domestic manufacturers have developed capabilities to manufacture all types of equipment to meet the country’s demand for transformers up to 800 Kilovolts (kV) and going up to 1,200 kV. The industry enjoys a good reputation in terms of quality, price, and delivery in the domestic as well as overseas markets.

India’s transformer market is predominantly unorganized with many small participants catering to the smaller distribution transformer markets. However, many are slowly graduating to the medium-sized category, thus expanding the organized participants’ base.
There are approximately 300+ transformer companies in India, with an overall installed capacity of over 370,000 Megavolt Amperes, (MVA) per annum. The market is fragmented with 20 organized players including Bharat Heavy Electricals Limited (BHEL), ABB Ltd, Crompton Greaves Ltd (CGL), Areva T&D, EMCO Ltd, Bharat Bijlee Ltd (BBL), Vijai Electricals, Transformers and Rectifiers India Limited (TRIL), Voltamp Transformers Ltd, among others.
In the power transformers category, companies in the high-end segment (400 kV and above) mainly include international players such as ABB Ltd, Alstom T&D (erstwhile Areva T&D India), and Siemens; and Indian manufacturers such as BHEL, CGL, TRIL, and Toshiba Transmission & Distribution Systems India (Entity formed by the acquisition of Vijai Electricals by Toshiba Corporation, Japan). The majority of other companies in this sector are present in the 220 kV segment in power and distribution transformers. Leading players have a significant presence in both the power and distribution transformer markets.
Apart from catering to domestic demand, India exports transformers to over 100 nations including the US, Europe, Malaysia, Singapore, Bangladesh, African countries, and Gulf countries. India is also an importer of transformers; the major countries include China, Germany, the USA, Korea, and Japan.
India Power and Distribution Transformer Market - Industry Trends & Forecast Report, 2029

India's power and distribution transformer market size was estimated at USD 1.48 billion in 2022. During the forecast period between 2023 and 2029, the size of India's power and distribution transformer market is projected to grow at a CAGR of 8.3% reaching a value of USD 2.38 billion by 2029. Major growth drivers for the Indian power and distribution transformer market include the growing energy demand, government policies and initiatives promoting renewable energy, infrastructure development, and the need for reliable and efficient power transmission and distribution. The government is actively implementing significant measures to enhance the power transmission and distribution infrastructure. Notably, initiatives like UDAY have been launched to facilitate the financial recovery of power distribution firms. Another driving force is the government measures aimed at elevating electrification rates and enhancing the operational efficiency of the country's distribution companies (discoms). India has experienced a notable upswing in power demand, driven by heightened capacity utilization, industrial growth, urbanization, and population increase, currently ranking as the fifth-largest nation globally in terms of installed power capacity.

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5Yrs Sales CAGR : 22%

5Yrs PAT CAGR : 35%

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5Yrs PAT CAGR : 44%

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5Yrs PAT CAGR : 21%

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5Yrs Sales CAGR : 17%

5Yrs PAT CAGR : 23%

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Praj Industries Ltd.

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5Yrs Sales CAGR : 31%

5Yrs PAT CAGR : 48%

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#Dixon Tech Q4 FY23 Concall Updates :

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5Yrs PAT CAGR : 31%

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5Yrs Sales CAGR : 17%

5Yrs PAT CAGR : 51%

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10Yrs Sales CAGR : 23%

10Yrs PAT CAGR : 25%

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Ganesha Ecosphere Ltd.

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5Yrs PAT CAGR : 17%

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