generators and ups

Generator Suppliers

Shenton Group supply prime power and standby generators, offering complete turnkey solutions.

At Shenton Group, we manufacture diesel and gas HV & LV generators from 10kVA to 3200kVA to your individual design requirements. As a leading generator manufacturer, not only are we focused on keeping power supplies operational in the event of a mains failure, but also on improving the sustainability of your power supply, such as providing prime power solutions for remote locations.

We manufacture a fully bespoke range of reliable standby power generators and offer ongoing technical support and maintenance services to ensure you never fall victim to a power failure.

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What Is a Standby Generator?

A generator is an independent power solution that produces electricity. A generator can be used continually as a main power source or as a backup power solution when you have a power outage from your primary power supply, such as the National Grid.

While Shenton Group manufacture and supply prime power and standby generators, we also equip organisations with everything else they need to have a safe and fully functioning power system they can rely upon.

When is a generator a viable power solution?

  • If you are reliant on a primary power supply but need a backup plan in case of a power outage
  • If you need to power a remote location where mains power is not available
  • If the power available isn’t enough to meet your power demands

If any of the points noted above match your needs, call us today, and our technical experts will be able to assist.

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What is the Difference between a Generator and a UPS?

A generator produces electricity and can be used as backup or as a primary power supply, whereas a UPS is a battery system that provides uninterrupted power but for a shorter period. A UPS is typically used to provide power from between a couple of minutes to a couple of hours, whereas a generator could be used to support outages from 2 hours right up to 72 hours and beyond. A generator is the recommended choice for protection against longer power outages.

For organisations of a critical nature such as data centres and hospitals, a generator and UPS would be used in tandem. Should there be a power cut; the UPS will provide power seamlessly ensuring no drop in power whilst the generator starts up. The generator would normally be online within 15 seconds of a power outage and once running, would pick up the full load from the UPS. The same process happens in reverse when mains power is restored. The generator would transfer the load back to the mains and the UPS would ensure there was no drop in power.

Comprehensive Generator Services

From design, manufacture, project management and civils, to mechanical and electrical install, site integration, testing and final commissioning – we look after the complete backup generator project.

Drawing
Design
manufacture

Manufacture

project management

Project Management

install

Install / Site integration

testing

Testing

Our range of diesel standby and prime-power generators include

  • Full range of weather-proof acoustic canopies to meet specific sound attenuation levels
  • Proven industry-leading control systems
  • Industry-leading choice of engines and alternators
  • Integral bunded base frame fuel tanks and fuel management systems
  • We support clients with funding options and offer market-leading expertise in finance for UPS & Generators

Need some help getting the right generator for your needs? Call today!

Backup Generator Technical Information

Application

Diesel generators can be used for many applications. Here are the most common:

Standby: the most common use of a generator. This is to start-up in the event of a mains failure and provides back-up power. It can also be set up to not only start up when the mains fails but to also carry on running when the mains returns. This involves synchronising with the mains and slowly ramping off ensuring there is no break in the supply again.

Prime: When the generator is used as the main power source and is running continually or for extended periods of time.

Peak lopping: very often more power is needed in locations than what is being provided by the mains supply. Upgrading the mains supply can be very costly and this is when you can install a generator to provide the extra power that you need. The generator will sense when the mains supply is near capacity and start the generator enabling it to provide extra power.

What about acoustics?

Acoustics are a major part of any generator project and need careful consideration when cost and space planning. From carrying out initial acoustic surveys through to the final installation we will ensure your requirements are met.

Acoustic ranges from 85dBA to 50dBA@1m. We offer generators within attenuated plant rooms, drop over, bespoke, or standard close fit canopies and containerised solutions. We can also look after any necessary louvres that maybe required and can supply and install secondary silencers within the flue to reduce the noise further.

SCR’s - concerned about exhaust emission?

Shenton Group can supply SCR catalyst systems to our generators. SCR’s (Selective Catalyst Reduction) may be required if the client is concerned about the exhaust emission produced or is considering to use the generator plant for anything other than standby emergency power. If this is the case then all equipment over a certain size must comply with the new MCPD directive (Medium Combustion Plant Directive). SCR systems reduce NOx emission by the injection of Urea (AD Blue) into the exhaust catalyst system.

Supplying and Installing Flue Systems

In many generator installations, exhaust flues need to exit away from the generator or building location. Shenton Group can supply and install bespoke flue systems including stainless steel, twin-wall insulated and coloured to blend in with architectural surroundings.

Automatic Mains Failure - Switchgear

Shenton Group manufacture and supply a range of Automatic Mains Failure (AMF)/ Automatic Transfer Switch (ATS) panels and dual mains panels designed for covering life safety equipment that must be backed up from two supplies.

For larger switchgear applications our engineers work closely with all major manufacturers, ensuring that complex control, synchronisation and switching arrangements are fully integrated.

Power Rating Definitions

Emergency Standby Power (ESP): Applicable for supplying power to varying electrical load for the duration of power interruption of a reliable utility source. Emergency Standby Power (ESP) is in accordance with ISO 8528. Fuel Stop power in accordance with ISO 3046, AS 2789, DIN 6271 and BS 5514.

Prime Power (unlimited running time): Prime Power is the maximum power available at a variable load for an unlimited number of hours. A 10% overload capability is available for a limited time. (Equivalent to Prime Power in accordance with AS 2789, DIN 6271 and BS 5514). This rating is not applicable to all generator set models.

Base Load (Continuous) Power: Applicable for supplying power continuously to a constant load up to the full output rating for unlimited hours. No sustained overload capability is available for this rating. Consult authorised distributor for rating. (Equivalent to Continuous power in accordance with ISO 8528, ISO 3046, AS 2789, DIN 6271 and BS 5514). This rating is not applicable to all generator set models.

Engine, Alternators and Control Systems

Some engines have better load acceptance or ventilation requirement than others, some alternators have better efficiencies and some control systems are just that little bit more sophisticated than others. Rest assured we will ensure your complete solution is the right choice for your application.

Ventilation & Flue Dilution

Ventilation is key to any generator installation to ensure that the generator doesn’t overheat. Getting the correct cooling/ combustion air to your generator and discharging air away can be achieved with the use of ductwork ventilation systems and, if required, inline fans can be incorporated into the system.
Flue dilution is when the generator exhaust gases and hot air from the generator engine and radiator are discharged together through one common duct/ louvre. This can negate the need to install a separate exhaust flue, and often provides value engineering and can simplify the install.

Fuel Tanks & Pipework

Most generators will come with a standard base fuel tank typically offering 10 hours run time at 75% load. However in instances where longer run times are required, space is an issue or where legislation comes into play, you may require a bespoke bulk fuel system.

We offer extended base tanks or bulk fuel tanks with a generator day tank local to the generator. This then gives you the option of going for a fuel transfer system or standard flow and return.
Types of fuel transfer pipework that we specialise in: Powerpipe, welded steel pipe in pipe, Brugg® and underground plastic pipe in pipe.

Switchgear

Shenton Group manufacture and supply a range of Automatic Mains Failure (AMF)/ Automatic Transfer Switch (ATS) panels and dual mains panels designed for covering life safety equipment that must be backed up from two supplies.
For larger switchgear applications our engineers work closely with all major manufacturers, ensuring that complex control, synchronisation and switching arrangements are fully integrated.

Bespoke Generator Manufacture – Quality Assured

We provide our clients with reliable prime and standby power solutions built with the highest safety features. Every generator we manufacture goes through a detailed pre-dispatch inspection before it reaches its final destination. For further peace of mind, clients who choose Shenton Group as their generator supplier can request a Factory Acceptance Test in our state-of-the-art Test Cell at our headquarters in Andover.

You will be welcomed to Shenton House, given a tour of our facilities, witness the Factory Acceptance Test, and receive a complimentary lunch; alternatively, the test can be live video streamed and witnessed from the comfort of your office.

Our UK generator testing in a “real-life” environment includes:

  • Full monitoring of all critical parameters
  • Recording of generator performance and load steps
  • Demonstration of the remote start and control system
  • Variable-speed airflow fans to simulate real life conditions
  • Integrated fuel system providing test fuel and fuel consumption monitoring
  • Electrical supply and connection panel for testing switchgear and UPS systems
  • WEB CAM and remote live streaming capability
  • Demonstration of set-to-set synchronisation

Standby Generator Accessories & Services:

  • Lift off or bi-fold doors for generators in tight locations
  • Additional outputs for further monitoring
  • Fire shut down safety device
  • Remote annunciator panel to display alarms and status
  • Diesel spill kit in the event of any leakages
  • Security pack to increase the security of the generator
  • Lightening surge protection
  • Weekly auto test
  • Remote monitoring software

We offer a range of different support contracts to ensure your investment remains in peak condition. Get in touch to find out more.

generator installed

Services offered

If you’re considering renting a generator rather than investing in a permanent generator, please take a look at our generator rental section.

Looking for generator maintenance?
We offer a range of different support contracts to ensure your investment remains in peak condition. Click here to find out more!

UPS systems have consumable parts that age with use. We offer UPS maintenance and monitoring plans to ensure they are kept in optimum condition click here to view our maintenance contracts.

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