Generator synchronisation is required before an AC generator is connected in parallel with another live source. EMPS reviews synchronisation and parallel-system requirements for commercial and industrial installations.
A system may need generators to share load, add capacity in stages or transfer between sources. The intended operating modes and single-line diagram establish the starting point. Paralleling with the utility supply also requires the relevant supply-authority approvals and protection requirements.
Voltage, frequency, phase sequence and phase angle must be within the required limits before the closing device operates. Suitable sensing, synchronising controls and interlocks are essential. Synchronisation is not the same as transferring a load between isolated sources.
After connection, compatible governor and excitation controls are needed to manage active and reactive load sharing. Breakers, protection settings and communications must be coordinated with the installation design. Equipment compatibility cannot be assumed from generator size alone.
Provide drawings, controller details and the intended operating sequence. Testing must be planned around site operations, switching procedures and the means of returning to a safe supply arrangement. Existing faults or undocumented modifications may require investigation before changes can be specified.
The checks and work required depend on the generator model, its condition and the installation. We agree the work with you before proceeding.
Photographs for this service will be added when suitable EMPS project images are available.
No. Generator characteristics, governors, excitation systems, controls, switching and protection must support the intended arrangement. Compatibility requires assessment.
No. Synchronisation matches the electrical conditions before connection. Load sharing controls how connected generators carry active and reactive demand after they are operating in parallel.
Only with an appropriately designed and approved arrangement. Utility requirements, protection, operating limits and any export restrictions must be addressed before parallel operation is permitted.
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