R.D.H Consultants, Inc. (RDH), was founded by Robert D. Henderson, P.E. in 1986 as an Engineering Consulting Firm located in Charlotte, NC.  RDH is currently authorized to practice engineering in North Carolina, South Carolina and Virginia. RDH provides Mechanical, Electrical, and Plumbing Engineering Services. While RDH was originally established to provide services to major industrial manufacturers, RDH has continually evolved to include forensics, commercial facilities, waste water, specialized engineering studies, and mission critical applications.  As markets change, we accommodate those changes. RDH has various project delivery methods: Design - bid - build; design - build; and direct consulting.  We can work directly with the client or the contractor, or other engineers and architects.  We continue to develop partnerships with trusted engineers, designers, architects, general contractors, sub-contractors, and owners.  We also continue to look at other project delivery methods that benefit the client. We provide selective device coordination studies, short circuit studies, arc flash studies, harmonics studies, other analysis methods, power engineering, equipment layouts, lighting design, communications, controls and instrumentation, control logic, process and instrument diagrams (P&ID’s), process flow diagrams (PFD’s). loop sheets, digital I/O drawings, elementary drawings, PLC panels layouts and design, digital control systems (DCS), feasibility studies, fire detection, project engineering, project planning, code review, panel fabrication drawings, medium voltage distribution, low voltage distribution, internal plant unit substations, lightning protection, grounding, variable speed drives, dc drives, inverter drives, isolation transformers, active filters, passive filters, reactors, dc battery systems, sizing generators, design generation systems, automatic transfer switches (ATS), transfer pairs, soft loading, soft unloading, reverse power relays, anti-motoring relays, feeder protection relays, transformer protection relays, generator protection relays, equipment specifications, switchgear layout, and other engineering functions.
R.D.H. Consultants, Inc.  222 Westinghouse Blvd. Ste. 505 Charlotte, NC 28273  704-588-6538  rdheng@rdhconsultants.com
Committed To Excellence In A Changing Environment Since 1986