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Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm

Helios Electric

Specialty firm with expertise in complex high, medium, and low voltage electrical systems.

Helios Electric offers comprehensive engineering and construction services to meet the growing electrical needs of today and tomorrow. With a vast electrical experience in industrial, utility, commercial, and mission critical systems, we provide services from the conceptual phase of a project through design development, system integration, power studies, facilities construction, and startup/commis

sioning. Utilizing over 30 years of experience, we strive to ensure that projects are completed on time, within budget, and performed correctly the first time.

03/18/2025

For more information on how we can improve protection and reliability on your next project:
https://www.helioselectric.net/power-system-studies
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12/24/2024

Happy Holidays from everyone at Helios Electric. We hope your holidays will be filled with joy and laughter through the New Year.

12/17/2024

ANSI-32 relays (as they pertain to DC Traction Power Systems) detect the Reverse Power/Current from track feeders back to DC Switchgear or Rectifier. This relay operates on a predetermined value of power flow in a given direction or upon reverse power flow. Unless the rectifier is designed as a four-quadrant device that can provide energy recovery during train braking, the reverse power flow to the rectifier can be damaging. This protection element is akin to reverse power protection on AC systems, such as the protection against motoring of a generator upon loss of its prime mover.

For more information regarding our advanced power system studies capabilities:

https://www.helioselectric.net/power-system-studies

12/10/2024

We believe your electrical facilities should operate reliably while ensuring optimal system protection.

Learn more at: https://www.helioselectric.net/power-system-studies

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12/03/2024

Whenever a traction power system is designed or upgraded, its electrical characteristics are altered and its overall performance changes. With a well-crafted AC/DC system feasibility study, these changes can be visualized before trains are placed in service.

See our publication to learn more:

https://www.helioselectric.net/s/Traction-Power-Feasibility-Study-White-Paper.pdf

11/27/2024

Happy Thanksgiving to our customers, vendors, and employees! Wishing you a harvest of blessings, good health, and good times.

11/19/2024

For more information on how we can improve protection and reliability on your next project:

https://www.helioselectric.net/power-system-studies

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11/11/2024

Today, we celebrate the bravery of our veterans. Thank you for your sacrifices and commitment to our country!

10/29/2024

Our Professional Engineers and Master Electricians collaborate to provide you with practical, real-world solutions. No design leaves our shop until both experts agree that your design represents the least expensive solution that uses the most reliable components.

SEL Community—Schweitzer Engineering Laboratories

10/24/2024

To learn about the optimal electrical design approach for your next project, or to get in touch with us:

https://www.helioselectric.net/design-services

10/01/2024

We believe that your electrical facilities should reliably operate while maintaining optimal system protection. Learn more at: https://www.helioselectric.net/power-system-studies

09/24/2024

Learn more about our retrofit services capabilities: https://www.helioselectric.net/retrofit-services

09/17/2024

For your next advanced design solution:

https://www.helioselectric.net/design-services

09/10/2024

To learn more about how our power system capabilities can benefit you:

https://www.helioselectric.net/power-system-studies

09/02/2024

Wishing a happy Labor Day to all our customers, suppliers, and employees. We appreciate everyone's hard work and contributions to improving society.

08/27/2024

Establishing the proper electrical system protection for a traction power substation requires careful consideration of the railway electrification system. For extra heavy traction power service, the operating profile (previously known as NEMA RI-9) must be accommodated.

Learn more: https://www.helioselectric.net/power-system-studies

08/20/2024

To learn how our power system protection capabilities can benefit you:
https://www.helioselectric.net/power-system-studies

08/14/2024

To learn more about retrofit enhancements that can benefit you:

https://www.helioselectric.net/field-services.

Address

362 Christopher Avenue, Suite B
Gaithersburg, MD
20879

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Telephone

+12405823900

Website

http://www.helioselectric.net/

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