ENMAKSAN POWER / Engineered power solutions
Medium Voltage
Generators.
Think beyond the set.
Plan power around your entire electrical network. Discuss medium voltage generation, protection and control requirements with ENMAKSAN POWER—from the first load assessment to a clearly defined project scope.
Higher voltage.
A wider engineering view.
A medium voltage diesel generator is part of an electrical system—not simply an engine and an alternator.
Its selection depends on the site’s distribution voltage, load profile, operating duty and protection philosophy. For a given apparent power, higher three-phase voltage reduces line current, which can influence cable sizing and distribution design. Overall performance and project cost still depend on the complete installation.
Where the network
sets the requirement.
Potential applications for medium voltage generator systems, subject to electrical studies and the site’s operating requirements.
Industrial facilities
Evaluate power for process equipment, large motors and production utilities connected to an MV distribution network.
Data centres
Plan standby generation alongside UPS systems, staged load acceptance and the facility’s redundancy strategy.
Mining & remote sites
Assess isolated networks with demanding motor starts, changing loads and location-specific operating conditions.
Healthcare campuses
Coordinate generation with critical distribution, transfer requirements and applicable healthcare electrical rules.
Water & utility facilities
Review pumping loads, starting methods and continuity requirements across distributed electrical infrastructure.
Airports & commercial campuses
Consider central generation for multiple buildings with coordinated switching and a defined restoration sequence.
Specify the system.
Then select the generator.
Use these engineering topics to build a clear enquiry. Final ratings, equipment and supply responsibilities must be confirmed in the technical proposal.
Electrical rating & operating duty
Define required kW and kVA, rated power factor, frequency, site voltage and the intended standby, prime or continuous operating duty. Include the load profile and allowable voltage and frequency deviations.
- Separate steady-state demand from starting and transient loads.
- Identify ambient temperature, altitude and any required derating.
- Confirm the alternator terminal voltage; do not infer it from engine size or kVA alone.
Alternator & excitation
Review insulation requirements, temperature rise, enclosure protection, cooling and excitation performance against the specified load. Evaluate motor starting, nonlinear loads and short-circuit current contribution using manufacturer data.
Specify winding temperature monitoring, anti-condensation heaters and other accessories where the application requires them. Availability depends on the selected alternator.
MV switchgear, earthing & protection
Coordinate equipment voltage class, insulation level, breaker ratings, CTs and VTs with the site fault study. Define neutral earthing, earth-fault protection, interlocks and cable termination interfaces.
Protection functions and settings require project studies. Differential protection, overcurrent, earth fault, voltage and frequency protection should be evaluated as appropriate to the topology.
Synchronisation & power management
Define standalone operation, generator-to-generator paralleling or approved utility-parallel operation. Specify synchronism checks, breaker control, active and reactive load sharing, load shedding and restoration logic as needed.
Utility paralleling requires the relevant network operator’s approval and agreed interface protection. It is not a default feature of every generator installation.
Installation & mechanical interfaces
Review ventilation, heat rejection, exhaust back pressure, fuel supply, access for maintenance, noise limits and foundation loads. Establish whether the project requires an open set, acoustic enclosure or a separate plant room.
Define fire strategy, environmental constraints and auxiliary power requirements with the responsible project specialists.
Testing, documentation & handover
Agree the inspection and test plan before manufacture. Define factory tests, load-bank testing, protection checks, site acceptance tests and any witnessed demonstrations within the contracted scope.
Request approved drawings, a single-line diagram, equipment data, settings schedules, operation manuals and maintenance information. Confirm applicable standards and editions in the specification; no certification is implied by this page.
Make the requirements clear.
Share your network
Send the single-line diagram, site voltage, load schedule and required operating duty.
Define the architecture
Review direct MV generation or transformer-based connection, redundancy and switching philosophy.
Confirm the scope
Agree equipment boundaries, technical ratings, documentation and testing responsibilities.
Review the proposal
Assess the proposed configuration against the project specification before procurement.
Medium voltage.
Clearly explained.
Practical answers for the first stage of your generator project.
What is a medium voltage generator?
It is a generator configured to produce electrical power at a voltage classified as medium voltage for the relevant system and jurisdiction. The exact voltage and equipment class must match the project specification. A low voltage generator connected through a step-up transformer is a different configuration.
Does a higher kVA rating mean medium voltage?
No. kVA describes apparent power; voltage describes the electrical potential at the terminals. A high-power diesel generator can still have a low voltage alternator. Verify the alternator nameplate, approved datasheet and proposed system arrangement.
Can multiple generators operate in parallel?
They can when the generators, controls, switchgear and protection are designed for parallel operation. Synchronisation, load sharing and fault behaviour need coordinated engineering. Grid-parallel operation also requires the relevant approvals.
Which models and voltages are available?
Ask ENMAKSAN POWER to confirm a configuration against your required output, terminal voltage, frequency and duty. Availability must be established from a current technical proposal or verified product datasheet.
What should I send with my enquiry?
Provide the load schedule, single-line diagram, required kW/kVA, voltage, frequency, duty, motor-starting information, site conditions and project location. Include redundancy, controls, noise, emissions and testing requirements where applicable.
Let’s define your
medium voltage solution.
Bring your project requirements to ENMAKSAN POWER. Start with a technical conversation and establish the right basis for a project-specific proposal.