Design And Development Engineer

Position Title: Senior Manager - EHV Design and Engineering
Work Location: Pune/ Vadodara
Qualification: BE./B. Tech in Electrical and ME/M.Tech in Power system studies
Experience Level: Over 15 years
Salary Budget: 22lpa
Hiring Time Frame: Within 30 – 45 days
Job description:
The principal responsibilities essentially include:
Design and Engineering:
1. System Design & Configuration:
 System Studies: Conduct detailed system studies, including load flow, short
circuit analysis, voltage drop calculations, reactive power compensation, and
harmonic analysis to ensure the stability and reliability of the power system.
 Configuration Layout: Design the overall configuration of the EHV substation,
including the arrangement of transformers, busbars, circuit breakers, isolators,
and other critical high-voltage components.
 Redundancy & Reliability: Incorporate redundancy, protection, and fail-safe
mechanisms in the design to enhance system reliability and minimize the risk of
outages.
2. Detailed Electrical Design:
 Single Line Diagrams (SLDs): Develop comprehensive single line diagrams that
clearly define the electrical connections and arrangements of all major equipment
in the substation.
 Equipment Specification: Define the specifications for all major electrical
equipment, including transformers, switchgear, reactors, and capacitors, ensuring
compliance with project requirements and standards.
 Cable Sizing & Routing: Calculate and select appropriate cable sizes based on
current-carrying capacity, voltage drop, and thermal constraints. Design efficient
cable routing plans that minimize interference and optimize installation.
 Earthing & Bonding: Design an effective earthing and bonding system for the
substation, ensuring personnel safety, equipment protection, and compliance with
local regulations.
3. Primary Engineering:
 High-Voltage Equipment Design: Design the layout and connections for high-
voltage equipment such as power transformers, circuit breakers, disconnect
switches, current and voltage transformers, and surge arresters.
 Busbar Design: Design busbar systems with considerations for thermal
performance, electrical stress, and mechanical stability. Ensure appropriate
spacing, support, and insulation to prevent flashovers or mechanical failure.
 Interconnection Schemes: Develop interconnection schemes for integrating
multiple substations or tie-lines into the existing power grid. Design interfaces with
existing infrastructure while ensuring minimal disruption.
4. Secondary Engineering:
 Protection Systems: Design comprehensive protection schemes, including
differential, distance, overcurrent, and earth fault protection, ensuring fast and
reliable fault detection and isolation.
 Control Systems: Design control logic and schemes for automation, including the
operation of circuit breakers, isolators, and other switchgear. Ensure seamless
integration with remote operation systems and SCADA.
 Metering & Instrumentation: Specify and design the metering and
instrumentation systems required for accurate monitoring and billing. Include
current and voltage transformers, energy meters, and transducers.
5. Equipment Sizing & Selection:
 Transformer Sizing: Calculate and select appropriate transformer ratings,
considering factors such as load growth, fault levels, efficiency, and cooling
requirements.
 Switchgear Sizing: Determine the correct ratings for circuit breakers, switchgear,
and other protective devices, ensuring they can safely interrupt fault currents
without compromising system integrity.
 Capacitor Bank & Reactor Design: Design and size capacitor banks for reactive
power compensation and reactors for controlling over-voltages or for current
limiting in the substation.
6. Integration with Renewable Energy Systems:
 Grid-Tie Design: Design interfaces for the connection of utility-scale renewable
energy systems (e.g., solar, wind) to the transmission grid, considering voltage
levels, harmonics, and stability.
 Inverter & Converter Coordination: Ensure proper coordination between EHV
equipment and inverters or converters used in renewable energy systems.
Address issues such as power factor correction, harmonics filtering, and
synchronization.
7. Owner’s Engineering:
 Technical Advisor: Act as the technical advisor to the project owner, providing
expert guidance on all aspects of EHV substation and transmission line design,
construction, and commissioning.
 Design Validation: Review and approve design documents, drawings, and
calculations provided by contractors or third-party consultants to ensure
compliance with project specifications, industry standards, and best practices.
8. Equipment Design Review:
 Technical Evaluation: Conduct a thorough technical evaluation of vendor
proposals, including equipment specifications, performance data, and compliance
with project requirements. Ensure that the selected vendors have a proven track
record of delivering high-quality EHV equipment.
 Specification Compliance: Review and validate equipment designs provided by
vendors/OEMs to ensure they comply with the project’s technical specifications,
industry standards, and regulatory requirements.
 Design Validation: Perform detailed design validations, including reviewing
engineering drawings, schematics, and technical data sheets. Ensure that the
equipment is appropriately designed for the specific operating conditions and load
requirements of the project.
 Material and Component Verification: Verify the materials and components
specified by the vendor, ensuring they meet the required durability, reliability, and
performance standards. Assess the suitability of materials for the specific
environmental and operational conditions of the project site.
9. Compliance and Standards Adherence:
 Industry Standards: Ensure that all designs comply with international and
national standards such as IS, IEC, NEC, IEEE, ANSI, and regional grid codes.
10. Innovative Design Solutions:
 Advanced Technologies: Stay abreast of emerging technologies in EHV
systems, such as digital substations, gas-insulated switchgear (GIS), and
advanced protection relays, and incorporate them into designs where applicable.
 Cost Optimization: Develop designs that balance cost-efficiency with
performance, exploring options such as modular construction, prefabricated
substations, and standardized components.
11. Quality Assurance:
 Design Reviews: Conduct rigorous design reviews and cross-discipline checks
to identify and rectify any potential issues early in the design process.
 Documentation: Prepare and maintain comprehensive design documentation,
including technical reports, design calculations, and as-built drawings.
12. Coordination with Civil and Structural Design:
 Foundation Design: Collaborate with civil engineers to design appropriate
foundations for high-voltage equipment, considering factors such as weight,
vibrations, and seismic conditions.
 Structural Integration: Ensure that the structural design supports the electrical
design, providing adequate clearances, accessibility, and safety measures.
Selection process:
 Telephonic discussion: Preliminary round of discussion over a call by the
company HR.
 Technical round: Technical round of discussion with the domain specialist in
Pune/ Vadodara office, MS Teams may be preferred for outstation candidates.
 Director meeting: At Pune office before conclusion.

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