Mauldin Road Wastewater Treatment Plant — Greenville, South Carolina
Helios Electric was tasked with performing a power system study for the large municipal facility. The task specifically included a harmonic distortion analysis and associated harmonic filter design to ensure that the variable frequency drives associated with six (6) 500HP motors did not cause detrimental effects to the overall electrical distribution system.
Ohio State University — Columbus, Ohio
Helios Electric provided design-assist services to the electrical contractor for implementing utility source transfer controls for new distribution switchgear. Tasks included system integration to accomplish open-transition, closed-transition, source synchronization, hardwired AC/DC controls, loop testing, PLC programming, and HMI screen development.
Newport Center — Jersey City, New Jersey
Helios Electric provided design-assist services to the electrical contractor for the new electrical spot network system. Tasks included developing zone-selective selective interlocking, digital trip unit configuration, ground fault protection, network protector configuration, and electrical interlocking schemes.
AstraZeneca — Wilmington, Delaware
Helios Electric was tasked with performing system integration services for configuring the digital protective relays associated with the existing medium-voltage switchgear. This included programming of SEL-751A and SEL-700G relays for protection, controls, and network connectivity with the customer’s SCADA system.
Liberty International Airport — Newark, New Jersey
Helios Electric was tasked with performing modifications to the existing motor control centers to suit the upgraded baggage handling facilities at the major transportation hub. This included modification of starter buckets, variable frequency drives, and associated controls for conveyors, ventilation systems, and sump pumps.
St Mary’s Hospital — Waterbury, Connecticut
Helios Electric was tasked with analyzing the emergency electrical distribution system for the critical hospital. The project scope also included development of a conceptual design for establishing a reliable emergency power distribution system. This included a new generator paralleling system, load shed controls, and a high-speed transfer scheme to ensure the availability of power to life-safety, critical, and priority loads.