JEC provides Substation design as a major and unique design service. Our scope of work often extends from layout, base and detailed designs to grounding, control, protection and schematics. It covers HV and MV panel designs as well.
All are done through all phases of specifications, selection and design. Scope of work of substation design may be summarized in the following tasks:

Electrical design calculation & drawings:

• CT VT sizing calculation.
• Lighting system design calculation.
• Grounding system design calculation.
• Relay setting calculation.
• Low, MV HV Voltage cables and breakers sizing calculation.
• Battery Battery charger sizing calculation.
• Lightning system design calculation.
• Operational SLD
• AC DC SLD
• Protection Metering SLD.
• Protection Logic Diagram.
• SCADA points lists.
• Interlocking logic diagram.
• Duct banks,cable trenches layout, sections and details.
• Earthing grid layout Equipment earthing layout and details
• Lightning (Shielding) protection layout and details.
• Indoor outdoor lighting layout Details.
• Small power distribution layout details
• Floor opening – Switchgear Control building

Civil design calculation & drawings including:

• Civil design criteria
• Design calculation of switchgear control building.
• Design calculation of power transformer fire wall foundation.
• Design calculations of auxiliary transformer fire wall foundation.
• Design calculation of oil tank.
• Design calculation of man holes ,hand holes,trenches and duct banks
• Design calculation of water tank ,septic tank soak pit
• Design calculation of boundary wall foundation.
• Design of gantry structure.
• Design calculation for HV switchgear foundation and steel support.
• Column and footing location plan and sections for control building.
• Ground floor roof framing plan, opening layout,slab rebar details and sections.
• Ground floor roof beams longitudinal sections details
• Staircase layout sections and rebars details.
• Basement retaining wall opening and rebar details
• Power transformer and fire wall plan section details.
• Hand hole,man hole trenches and duct banks details.
• Details of septic tank soak pit and cable trenches.
• Crane girder plan sections and details
• Water tank details

Architectural drawings including :

• Floor plans
• buildings elevation
• buildings and walls sections
• stair cases plans, sections details
• site design development plan
• layout and details of raised floor and false ceiling
• doors,windows, finishing schedules 
• Boundary wall plan, elevation and details.
• Architecture details.

Mechanical design and drawings including :

• Design calculations and drawings for HVAC system
• Design calculations and drawings for firefighting system
• Design calculations and drawings for fire alarm system
• Design calculations and drawings for plumbing system