Low-Voltage Panels
Low-voltage (LV) distribution and control assemblies — synchronisation (SYNC), PDP, motor control centre (MCC) and automatic transfer switch (ATS) panels — engineered around how the site must operate.
Typical situations
- Several generators must run in parallel and share load.
- A site needs automatic transfer between utility supply and generators.
- Motor loads need a structured motor control centre.
- An existing panel needs controller replacement, metering or protection changes.
What we do
- Synchronisation panels for generator-to-generator paralleling and, where designed and approved, generator-to-mains operation.
- PDP, MCC and ATS panels for the agreed distribution and control scheme.
- Metering, protection devices and generator controllers.
- Active (kW) and reactive (kVAr) load-sharing control, where the controllers and design support it.
- Interlocks between sources, breakers and transfer equipment.
Confirmed after survey or agreed separately
- Current ratings, short-circuit ratings and form of separation are defined from the project's single-line diagram and verified for the specific assembly.
- Design responsibility is agreed per project — our design, the consultant's design, or our detailed engineering of a consultant's concept.
- Factory acceptance testing (FAT) is carried out where agreed in the contract; witness arrangements are confirmed at order.
- Utility-connected modes depend on site-specific design, protection and applicable utility approvals.
Engineering interfaces
- Generator controllers and alternators
- Utility incomers and MV/LV transformers
- Fuel-system and building-management signals
- Downstream distribution and motor loads
Typical deliverables, as agreed
- Single-line and schematic drawings, as agreed
- Bill of materials
- FAT record, where FAT is agreed
- Site acceptance test (SAT) and commissioning record
- Record of controller and protection settings as commissioned
Frequently asked questions
What panel ratings can you supply?
Ratings are defined from your single-line diagram, fault level and installation conditions, and verified for the specific assembly. Send us the drawing and load schedule so we can confirm.
What is the difference between open- and closed-transition transfer?
Open transition disconnects one source before connecting the other, so loads see a short interruption and the sources never run in parallel. Closed transition briefly parallels synchronised sources so the load is not interrupted. Closed transition with the utility depends on design, protection and approvals.