Sub-Engineering
Designing Tomorrow's Electric System
Sub-Engineering is an Engineering and Design firm that specializes in providing
engineering, design, and drafting services for high-voltage transmission and substation projects.
We provide customized services based on your requirements.
Engineering Services
Sub Engineering LLC provides specialized substation engineering solutions to utilities and EPC firms across North America. With over 17 years of proven experience, we deliver reliable, standards-compliant, and cost-effective designs for transmission and distribution substations ranging from 4 kV to 500 kV.
Our Core Services
1. Protection & Control Engineering
one-line/three-line diagrams and AC/DC schematics
Panel wiring design and interconnection diagrams
Relay protection and control logic development
SCADA, RTU, and communication interface design
2. Physical Design Engineering
Substation general arrangement and equipment layout
Bus, structure, and foundation design
Grounding, lighting, and conduit system design
Cable trench and raceway planning
3. Project Management & QA/QC
Detailed design review and documentation control
Vendor drawing and equipment submittal review
Coordination with utilities, EPCs, and contractors
Compliance with IEEE, NESC, and client-specific standards
Substation Drafting Services
At Sub Engineering LLC, we understand that every utility and
EPC has its own drafting standards, processes, and timelines. To support these needs, we provide customized substation drafting services from our back office in India, ensuring accuracy, efficiency, and cost-effectiveness.
Led by a US-licensed Professional Engineer (P.E.) with over 18 years of substation design experience, our team of CAD Drafters and Electrical Designers delivers high-quality drafting that aligns with each client's unique requirements.
Our Expertise
1. One-line diagrams
2. Schematics and control wiring diagrams
3. Panel layouts and internal wiring details
4. Control house layouts
5. General arrangement drawings
6. Grounding and conduittrench layouts
7. As-built drawing updates
We work in AutoCAD, MicroStation, and client-specific CAD platforms, adapting to your templates and standards for seamless integration with your projects.
About
Sub-Engineering
Sub-Engineering is an Engineering and Design firm that specializes in providing engineering, design, and drafting services for high-voltage transmission and substation projects. We provide customized services based on your requirements.
Our Services
Drafting Services
Precise substation engineering drawings, including layouts, schematics, and as-built documentation, ensuring accuracy and compliance with industry standards.
Conceptual Engineering And scope
Initial design and scope development tailored to meet client requirements, emphasizing efficiency, innovation, and project feasibility.
Protection & Control Design
Advanced systems design for substation protection, automation, and control, ensuring reliability and seamless operation.
Below Grade Design
Comprehensive underground design solutions, including cable routing, grounding, and foundation plans for substation infrastructure.
Above Grade Design
Detailed structural and electrical design for above-ground substation components, ensuring robust and efficient installations.
civil / structural design
Coming Soon.
What Sub Engineering Offers:
"At Sub Engineering, we don’t believe in one-size-fits-all solutions.
Partner with us for designs that are as unique as your project requirements."
Flexible Approach
Whether it’s a greenfield project, a system upgrade, or a retrofit, we adapt our processes to meet your exact requirements.
Collaborative Design
We work closely with your team to understand your vision, site conditions, and project objectives, ensuring our designs integrate seamlessly with your operations.
Scalable Solutions
From small-scale installations to large, complex substations, we provide scalable designs that support your current and future needs.
Focused Expertise
Our team brings extensive knowledge and experience, allowing us to customize solutions that optimize performance, reliability, and cost-effectiveness.
Why Choose Sub Engineering:
Flexible Engagement
Support only where you need it: overflow drafting, temporary manpower gaps, or large-scale project assistance.
High Quality
Every project is led by an experienced engineer and a skilled drafter, ensuring accuracy and technical completeness.
Faster Turnaround
Dedicated drafting and engineering teams in the U.S. and India ensure responsiveness to your schedules.
Cost-Effective Solution
Get high-quality engineering and drafting support without the overhead of full in-house resources.
Contact Us
Call Us At:
+1 (909) 551-8500
Email Us At:
contact@sub-engineering.com