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PNH Engineering
Electrical and Architectural Design Services

PNH Engineering is a professional engineering company based in Coquitlam, BC. We have proven experience in providing a wide range of electrical, protection and control design services on power transmission and distribution (T&D) projects. We offer full engineering design and CAD drafting services for high voltage and medium voltage electrical substations and other electrical facilities from conceptual phase through to detailed design and implementation phase.


We are experienced in all aspects of protection and control engineering services including for new substations/ expansions, relay replacements, protection and control scheme modifications.


We work with our customers as an extension of their team and support in developing construction and outage staging plans. We provide technical support during construction and record (as-built) drawing services.


We can include civil and structural design services on request. 

Quality, integrity, accountability and safety are our core values. We are committed to offer high quality and cost-effective services to our clients involved in the T&D and building sectors.

Our offerings also include architectural design and drafting services for single family residential homes and small commercial buildings and full CAD design services for glazing industry. We provide full architectural building permit drawings for new residential houses, and also for renovations and alterations. We do on-site measurements and floor plans for real estate feature sheets.

Our Services

We offer engineering services from conceptual to implementation stages of projects including providing technical support during construction and  producing record drawings.
Our engineering team has several decades of experience in substation electrical, protection and control design and in architectural design/ drafting.   

Our Services

Substation Protection Design

Protection system design, including:

  • Line distance and current differential

  • High-voltage bus high and low impedance differential

  • Transformer current differential

  • Shunt capacitor bank voltage differential

  • Medium voltage bus differential and overcurrent

  • Feeder overcurrent

Substation Control Design

Control system design, including:

  • Circuit breaker and disconnect controls

  • Automatic line transfer control

  • Transformer LTC control

  • Automatic VAR control

  • RTU and SCADA systems

  • HMIs and mimic displays

Substation Electrical Design

Electrical system design, including:​

  • Major equipment specifications and ratings

  • MV power distribution

  • Various types of switchgear technology, including vacuum, SF6, and GIS

  • Station service design

  • Cable sizing, cable pulling and raceway sizing

  • Building layouts

  • Cable trench and duct layouts

Architectural Design/Drafting Services

  • Architectural design and drafting for wood-frame structures including residential homes, commercial and office buildings

  • Architectural building permit drawings package including:

    • Site plan

    • Main floor plan,

    • Upper/ lower floor plans

    • Roof plan

    • Sections and elevations

CAD Design Services- Glazing

Design and Shop Drawings for:


  • Curtain Walls

  • Window Walls

  • Storefront

  • Canopies

  • Entrances

  • Skylights

Construction Support

  • Technical Support during Construction and Commissioning

  • As-builts/ record drawings


Phillip Costanzo, 

Infra-tech, Sechelt BC

Emailed on 14-June-2022

"I was very fortunate to enlist the architectural design services of Pritam Haldar of PNH Engineering. His high degree of design competency was delivered through a sensitivity and patience that produced a most enjoyable engagement. He displayed the utmost professionalism in developing a relationship to navigate through the design process that proved to be very fruitful and resulted in my needs being met; a pleasure to know and work with Pritam."


Ready to find out more?

Please reach out to us

by emailing

or calling +1-778.558.3294

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