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Think. Solve. Do.

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Looking at the big picture.

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Hands-on engineering.

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From planning to handover.

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Practical thinking. Proven solutions.

Passionate about engineering

With a proud history of over 30 years servicing industry, we hold a unique position within the engineering sector in New Zealand. We offer a wide range of electrical engineering and project management skills and are closely allied to Consultants with complimentary disciplines to provide a complete engineering service.

From planning to handover

Our services include investigative and feasibility studies, engineers costs estimates, detailed design, project management and commissioning assistance. The McMahon approach is very much ‘hands on’ with in-house experience to complete total electrical, instrumentation, and control designs, through to installation supervision and plant commissioning.

Generation

 

  • Hydro
  • Geothermal and steamfield control
  • Diesel generation
  • Gas generation
  • Generator control system refurbishment

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Distribution

 

  • Overhead and underground network design
  • Equipment specifications
  • Switchyard designs
  • 11kV to 110kV networks
  • Earthing
  • Protection

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Industrial

 

  • LV distribution
  • Cable support design
  • Switchboard replacements
  • Motor control
  • Power factor correction
  • UPS installations

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Control Systems

 

  • Functional descriptions
  • Control & SCADA system specifications
  • Automation hardware system design
  • PLC & DCS software configuration
  • Instrumentation specification and design

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Engineering Services

 

  • Equipment condition audits
  • Computer Aided Design
  • Manual draughting services
  • System modelling, fault and load flow studies
  • Arc flash studies
  • Power quality investigations

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Project Management

 

  • Feasibility studies
  • Cost estimates
  • Project planning
  • Financial monitoring
  • Site supervision
  • Commissioning

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