Available connection capacity
Demand assessment, transformer upgrade options, point-of-connection and utility coordination.
EV infrastructure / Electrical interfaces
EV charging power infrastructure for commercial & industrial sites
A reliable charging installation starts with feeder capacity, protection coordination, distribution architecture and charger interface requirements. QuangAnhcons can support the electrical works and agreed vendor interfaces.
Technical scope, construction boundaries and commercial terms confirmed per project.
Electrical interface concept
Utility connectionTransformerProtection & meteringEnd equipment
Conceptual engineering illustration, not a photograph of a completed installation.
Chargers are only one part of the electrical project
For depots, industrial facilities and commercial charging sites, early engineering needs to consider simultaneous charging demand, LV/MV capacity, charger location, distances, demand management and availability of a utility connection. Equipment supply, software, billing, remote monitoring and operator obligations must be explicitly allocated.
Electrical work packages for chargers
LV distribution and feeders
MSB/DB, protection, voltage drop, conductor routing, containment and distribution interface.
AC and DC equipment interface
Charger configuration, site layout, foundations, distribution and vendor installation requirements.
Earthing and electrical safety
Protective devices, required fault rating, earthing/bonding, isolation and physical protection.
Demand management interfaces
Power sharing, metering, monitoring and utility export/import control where applicable.
Test and acceptance boundaries
Inspection plan, electrical tests, charger vendor checks and site operation documentation.
Plan the electrical backbone first
Count chargers, rated kW, concurrency, dwell-time and expansion plan.
Verify transformer/feeder loading, available spare capacity and utility limits.
Agree charger make/model, control network and commissioning responsibility.
Complete electrical construction checks and agreed functional handover.
Essential charger project information
Electrical design data
- Number of chargers and per-point AC/DC rated kW.
- Existing transformer kVA, spare capacity, SLD and fault rating.
- Distances to chargers, route drawings and earthing system.
Commercial and operator data
- Charger supplied by customer, integrator or contractor.
- Network connection, payment/backend and charger software responsibility.
- Target commissioning date and expansion/availability requirements.
Questions for charging infrastructure
Questions often raised during a preliminary engineering and commercial review.
How much transformer capacity is needed for 400 kW of chargers?
That cannot be determined from the nameplate figure alone. Simultaneous load, power factor, losses, other site demand, diversity strategy and expansion assumptions must be checked.
Can you quote chargers and electrical infrastructure separately?
Yes, the vendor charger package and site electrical scope can be clearly separated in the RFQ.
Does this page show a completed QuangAnhcons EV project?
No. The graphic is an engineering concept, not a claim that a pictured EV charger site was delivered by QuangAnhcons.
Can rooftop solar or BESS be added?
These interfaces can be evaluated at concept stage, subject to operational profile, control scheme, protection and separate scope confirmation.
Request engineering and commercial review
Planning a EV charging electrical infrastructure project?
Send the location, technical ratings, SLD or BOQ if available, target dates and expected supply/installation boundaries. The quotation will identify assumptions and exclusions.
Prepare a project RFQ →
Hotline: +84 919 758 191
This page describes potential project services and engineering review activities; it does not constitute a certified design, equipment specification, project reference endorsement or fixed-price offer. Requirements follow the approved project drawings, applicable IEC/TCVN provisions, local utility requirements and agreed contractual scope.