Heavy‑Duty Electrical Power—Engineered for Safety, Uptime, and Growth
Your production lines, compressors, and process controls depend on power that is clean, stable, and delivered safely. Legacy Industries designs, installs, commissions, and maintains industrial power systems across Upstate South Carolina, North Georgia, and Western North Carolina. From medium‑voltage distribution and switchgear to PLC/SCADA controls and VFD‑driven motor systems, we build infrastructure that meets rigorous safety and performance targets—day in, day out.
Why Manufacturers Choose Legacy Industries
| Advantage | What You Get |
|---|---|
| Industrial Expertise | Electricians and engineers experienced with manufacturing, bulk material, and continuous‑process environments. |
| Code & Standard Alignment | NEC, NFPA 70E, NFPA 110 (where applicable), IEEE 1584 arc‑flash, and local AHJ compliance. |
| Uptime‑First Planning | Phased cutovers, weekend shutdowns, and hot‑swaps (where safe) to protect production. |
| Documented Quality | One‑line diagrams, panel schedules, labeling, torque logs, and commissioning reports. |
| Lifecycle Support | Preventive maintenance, infrared scans, power quality audits, and 24/7 emergency response. |
End‑to‑End Industrial Power Delivery
We handle the full stack—from service entrance to controls.
| System Layer | Scope of Work |
|---|---|
| Medium‑Voltage (MV) Service | 5–15 kV incoming service, primary metering, MV switchgear, pad‑mount transformers, grounding grids. |
| Low‑Voltage (LV) Distribution | Main switchboards, panelboards, busway, MCCs, feeders, branch circuits, surge protection. |
| Motor Power & Control | VFDs/soft‑starts, across‑the‑line starters, motor protection relays, local disconnects. |
| Control Wiring | PLC I/O wiring, remote I/O panels, instrumentation, 24VDC control power, E‑stops, interlocks. |
| Backup Power & UPS | ATS/switchgear integration, UPS for critical controls and IT. |
| Power Quality & Safety | Harmonic mitigation, grounding/bonding, arc‑flash labeling, coordination studies. |
Design‑Build or Plan‑Spec—We Fit Your Delivery Model
- Design‑Build: Load studies, one‑lines, equipment schedules, photometrics (as needed), and submittals with value engineering.
- Plan‑Spec: Competitive execution of stamped drawings with RFIs, coordinated shop drawings, and clean inspections.
Motor Systems: Efficient Starts & Stable Operation
VFDs & Soft Starters
- Energy savings for variable‑torque loads (fans, pumps, compressors).
- Reduced inrush and mechanical stress on conveyors and mixers.
- Networked control (EtherNet/IP, Modbus, Profinet) and bypass options for uptime.
Protection & Monitoring
- Thermal overloads, PTC inputs, ground‑fault protection, phase‑loss and phase‑imbalance relays.
- Local lockable disconnects and clearly labeled control stations.
PLC/SCADA & Control Wiring
We design and wire reliable control systems that are easy to maintain.
- PLC panels with fused I/O, marshalling, and 24VDC distribution
- SCADA/HMI integration for line status, alarms, and reports
- Safety circuits: E‑Stops, light curtains, gate switches, and interlocks
- Instrumentation loops (4–20 mA/0–10 V) with proper shielding and grounding
- Panel labeling, wire ferrules, terminal designations, and as‑built drawings
Power Quality, Grounding & Bonding
Clean power prevents nuisance trips, premature motor failure, and control glitches.
| Service | What We Do |
|---|---|
| Harmonic Studies | Measure THD, recommend line reactors, filters, or multi‑pulse VFDs. |
| Grounding/Bonding Audits | Verify continuity, bonding jumpers, and grounding electrode systems. |
| Coordination & Arc‑Flash | Breaker/relay settings, selective coordination, IEEE 1584 incident energy labels. |
| Surge Protection | TVSS at service and distribution to protect PLCs, VFDs, and IT. |
Typical Industrial Environments We Serve
- Manufacturing & Assembly (machining, packaging, finishing)
- Bulk Materials (aggregate, concrete, asphalt, mining support)
- Food & Beverage (process, cold storage, wash‑down)
- Chemicals & Plastics (process controls, hazardous locations)
- Warehousing & Logistics (high‑bay lighting, conveyors, dock power)
Switchgear, MCCs & Distribution
- Main switchboards with proper AIC ratings and future spares
- MCC buckets, combination starters, and feeder breakers sized for expansion
- Busway and bus plug drops for reconfigurable production floors
- Transformers: K‑factor, isolation, and ventilation planning
- Comprehensive labeling: arc‑flash, circuit directories, and feeder tags
Lighting for Industrial Spaces
- High/Low‑Bay LED with aisle optics and motion/daylight zoning
- Task & Inspection Lighting with high CRI for QA areas
- Exterior & Security poles and wall packs for yards and perimeters
- Emergency & Egress lighting with battery packs and monthly test routines
Safety & Compliance
We build safety into every task:
- NEC‑aligned installations with clearances and labeling
- NFPA 70E practices: energized work permits, PPE, and LOTO
- OSHA compliance: barricades, spotters, and housekeeping
- Hazardous‑location equipment where classified (as specified)
Commissioning & Testing
Our commissioning program verifies readiness before turnover.
| Test | Purpose |
|---|---|
| Megger/Insulation Resistance | Confirm cable insulation health prior to energization. |
| Primary/Secondary Injection | Validate breaker trip curves and relay settings. |
| Torque Audits | Documented torque on terminations per manufacturer spec. |
| Infrared Thermography | Identify hot spots under load prior to production. |
| Functional/IO Tests | Verify PLC/HMI logic, interlocks, and E‑Stop circuits. |
Deliverables include test reports, marked‑up one‑lines, and as‑builts.
Shutdown Planning & Phased Cutovers
We coordinate with operations to reduce downtime:
- Night/weekend work windows
- Pre‑fabricated panel builds and skid assemblies
- Clear MOPs (Methods of Procedure) and safety briefings
Preventive Maintenance Programs
Keep systems reliable with scheduled care:
- IR scans of switchgear, MCCs, and terminations
- Breaker exercising and cleaning; lubrication where allowed
- Panel/panelboard inspection and re‑torque
- VFD filter service and cooling fan checks
- Power quality logging and report reviews
Service Areas
We support industrial facilities throughout:
- Greenville
- Spartanburg
- Anderson
- Simpsonville
- Laurens
- Gaffney
- Western North Carolina
- North Georgia
Multi‑site and campus programs can be scheduled to align with maintenance shutdowns.
Frequently Asked Questions
Can you work in an active production environment?
Yes. We plan phased cutovers, cordon work zones, and coordinate with supervisors to maintain throughput.
Do you provide stamped engineering drawings?
For design‑build projects, we produce detailed one‑lines and coordination; stamped drawings can be coordinated per project requirements.
Can you integrate new equipment with existing PLCs and HMIs?
Absolutely. We match I/O, protocols, and standards for seamless integration and documented change control.
How do you handle arc‑flash and coordination?
We perform studies, set protective devices, and apply labels per IEEE and NEC guidance to improve safety and selectivity.
What is your lead time for major upgrades?
Lead time varies by gear procurement and shutdown windows; we provide realistic schedules and early ordering to meet targets.
Start with a Purpose‑Built Power Plan
Every plant is unique. Legacy Industries evaluates your current loads, future expansion, and operational risks to create a power plan that supports production, protects people, and simplifies maintenance. From MV service to the last sensor wire, our team delivers industrial electrical work that stands up to demanding environments.
Phone: (864) 431‑4670
Email: tyler.abbott@legacyind.net
Service Region: Upstate South Carolina and surrounding areas