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Emerging technological advances coupled with stringent regulatory compliance requirements create an increasingly complex Grid engineering landscape. SECo has a distinguished history in providing Relay Protection & Control engineering services with proven quality, reliability, and customer trust.

SECo personnel are trained and proficient with the most-up-to-date training, tools, resources and knowledge of customer and industry relay protection and control engineering procedures and standards. Our Protection and Control Designs adhere to the most stringent customer requirements.

 

protection and control wiring

We pride ourselves
on actively listening to our customers.

With a commitment to providing and delivering the best engineering services possible and exceeding our customers' Relay Protection & Control needs.

Service Offerings

Protection & Control Engineering

Relay Design

  • Functional Single Line Diagram

  • Relay Control Panel Layout

  • Point-to-Point Wiring Diagram

Equipment Specification

  • Remote/Network Terminal Unit

  • Substation Communications Networking

  • IED Hardware

  • Transformer/Breaker Monitoring

Relay Settings & Engineering

  • Fault Studies

  • Coordination Studies

  • Control Logic

  • Relay Communications Networks

  • Transformer / Transmission / Bus Generation & Feeder Protection Engineering Designs

  • Temporary Construction Configurations / Cutover Packages

Equipment Evaluation

  • HMI

  • Substation Automation

  • Remote Input/Output

  • Data Concentrators

Explore Our Work

SECo logo in white text

Headquarters

6 Commerce Drive

Reading, PA 19607

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© 2025 by Substation Engineering Company

© 2020 by Substation Engineering Co.

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Headquarters

6 Commerce Drive

Reading, PA 19607

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Phone: 610-603-5011

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Email info@subengco.com for more information.

Career Opportunities

To apply, please send resumes to our Human Resources Department: 

recruiting@subengco.com.

© 2023 by Substation Engineering Company

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