15 kVA Generators

Reliable 15 kVA Diesel Generators

A 15 kVA generator provides a practical balance of output, fuel efficiency and compact dimensions. It can support homes, workshops, small commercial premises, farms, construction facilities and telecommunications equipment. These units are also well suited to sites that need dependable backup power without the size or fuel demand of a larger industrial generator.

Our range includes Cummins, Grupel and Pramac diesel generators, all built for 50Hz operation. Cummins models combine Cummins diesel engines, Stamford alternators and Cummins PowerCommand control panels. Grupel models use Perkins engines, Leroy Somer alternators and Deep Sea control panels. Pramac models use Perkins or Yanmar engines with Mecc Alte or Linz alternators.

Global Generators is an authorised Cummins CPG reseller and an authorised Grupel and Pramac dealer, offering the UK’s best pricing on genuine Cummins generators. We also supply carefully selected Grupel and Pramac generators for customers seeking a proven Perkins-powered or Yanmar-powered option.

We hold a wide range of generators in our physical inventory, helping us arrange fast delivery across the UK and efficient global export. Our team also has more than 50 years of combined generator industry experience, so we can help you compare specifications and select the right unit for your application.

Silent Canopied Generators for Lower Noise Levels

Every model in this category is supplied in a weather-resistant acoustic canopy. A 15 kVA silent generator is therefore a strong choice for locations where noise levels, security and protection from the elements are important.

The canopy surrounds the engine, alternator and control equipment while allowing cooling air to circulate through the set. Access doors make routine inspections and maintenance easier, while the enclosed design protects key components from accidental contact.

A 15 kVA silent diesel generator can be used near homes, offices, retail sites and other occupied buildings, subject to appropriate positioning and local noise requirements. Buyers comparing silent generators with open sets should also consider ventilation, exhaust routing, servicing access and the distance between the generator and nearby properties.

These are typically 1500rpm diesel generator models. Operating at this speed is standard for industrial 50Hz generators and supports stable power delivery, efficient engine operation and a long working life when the set is correctly maintained.

15 kVA 3 Phase Generator Options

A 15 kVA 3 phase generator distributes its output across three phases and is designed for equipment operating from a 400V supply. Typical uses include workshop machinery, pumps, compressors, agricultural systems and smaller industrial installations.

At 400V, a 15 kVA 3 phase diesel generator produces approximately 21.6A at full rated output. The connected loads should be balanced across the phases wherever possible, as a major imbalance can affect voltage stability and reduce usable capacity.

A 15 kVA 3 phase genset may be chosen for either standby or prime power. However, the permitted output and run time will depend on the manufacturer’s published rating, operating conditions and maintenance schedule.

For sites requiring an enclosed three phase unit, a 15 kVA 3 phase diesel genset combines a diesel engine, alternator, fuel tank and control panel within one compact package. It can also be paired with a compatible automatic transfer switch for mains-failure operation.

Our 3 phase generators use an automatic voltage regulator to maintain a stable output as electrical demand changes. Correct cable sizing, protection and installation remain essential, particularly when the generator will start equipment with high initial current demands.

15 kVA Single Phase Generator Options

A 15 kVA single phase generator supplies power at 230V. It is better suited to sites where most or all connected equipment is single phase, including homes, offices, small shops, lighting circuits and certain tools.

At its full rated output, a 15 kVA single phase diesel generator produces approximately 65.2A. The higher current means that cables, protective devices and transfer equipment must be sized for the installation rather than selected solely from the generator’s kVA rating.

A 15 kVA single phase genset can provide a straightforward alternative where no 3 phase equipment needs to be supported. This avoids the phase-balancing considerations associated with using a three phase generator to supply several separate 230V circuits.

For extended or regular use, a 15 kVA single phase diesel genset should be selected according to its prime rating, not only its standby figure. Fuel capacity, service intervals, site conditions and the expected load profile will all influence its practical run time.

Our single phase generators are useful for customers searching for a diesel generator single phase solution with robust industrial components. These independently powered generators can maintain essential equipment when mains electricity is unavailable or unsuitable.

Controls, Voltage Regulation and Standby Operation

The control panel provides operating information, protection warnings and start stop functions. Depending on the model, it may display voltage, frequency, current, engine hours, coolant temperature, oil pressure and battery condition.

An automatic voltage regulator adjusts alternator excitation to help keep the electrical output stable as the load varies. This is particularly important when supplying electronic controls, motors and mixed electrical loads.

When installed as a standby generator, the set can be connected to a suitably rated automatic transfer switch. If the mains supply fails, the system detects the outage, starts the generator and transfers the building’s load. Once mains power returns and stabilises, the load is transferred back before the generator completes its cooling cycle and stops.

For prime power applications, operating hours may be longer and the load can vary throughout the day. Buyers should therefore consider average demand, peak demand, motor starting current, fuel tank capacity and access for refuelling and servicing.

Choosing the Correct Generator Size

A generator should be sized from the actual electrical load rather than the building type alone. Add the running demand of all equipment that may operate together, then account for starting currents from motors, pumps, compressors and refrigeration systems.

Allowing a sensible reserve can prevent frequent overloading and leave room for moderate future demand. Excessive oversizing should also be avoided, as a diesel engine that operates continually at a very low load may experience inefficient combustion and increased maintenance requirements.

If 15 kVA does not provide enough capacity, a 20 kVA generator may offer the additional headroom required. Our experts can review your load information and help establish whether 15 kVA is suitable.

Frequently Asked Questions

Reserve Your 15 kVA Generator

Contact our experts today for more information about our range of 15 kVA generators or to reserve your generator. Speak to us by phone, WhatsApp or email, or submit the enquiry form and our team will help you select the right model for UK delivery or global export.