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ONSITE SERVICES FOR UPS & GENERATORS

Specialist Power Systems offer a wide range of onsite UPS & generator services. We highlight below our most requested services that will ensure your critical power systems are ready to go when you need them most. Whether it’s the installation of a new system or the repair of an existing faulty UPS we are here to help.

Browse the categories below or give us a call today on 01234 851155 or email us at [email protected] to discuss your onsite UPS and Generator requirements.

Installation and Commissioning

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As an independent standby power specialist with over 20 years’ experience and over 2,500 installations carried out, we will take care of all your UPS and generator installation requirements.

Here is a quick overview of what we can offer but please read on for full details.

  • UK and Ireland installation coverage
  • Fully trained service engineers & ECA / NICEIC qualified electricians
  • All works carried out by factory trained and manufacturer approved engineers
  • Electrical installations are certified to BS7671
  • Electrical certification is provided on project completion
  • Detailed commissioning reports

 

We cover more details about our UK & Ireland installation and commissioning services below. We explain how our services work by detailing each stage of the process and why it is so important to use a specialist company to carry out your UPS or generator installation.

If you would rather speak to one of our experts, call us today on 01234 851155 or email us at [email protected] to discuss your installation requirements.

3D UPS and generator icons with a dotted line to a screwdriver and drill icon
Institution of Electrical Engineers logo and National Inspection Council for Electrical Installation Contracting logo

Why Correct Installation is Important

A successful installation carried out by an expert engineer can ensure your backup systems run at peak performance for years to come. 

It is vital for a generator and UPS system to be properly installed to ensure a long working life. UPS systems, (usually over 3kVA), and generators, (typically over 10kVA), require an installation by a qualified electrician in full compliance with all statutory regulations.

Our fully-certified engineers are qualified to Institution of Electrical Engineers (IEE) standards and all electrical installations meet strict National Inspection Council for Electrical Installation Contracting (NICEIC) criteria.

In-House Team of Engineers

Regardless of your project size, Specialist Power Systems will bring our knowledge and experience to every installation to make sure your critical power backup system performs the way it was designed to.

Our engineers will ensure all installations are completed correctly, carry out essential final checks, and commission the system so it’s working optimally from day one.

We follow a professional approach to every install. Our project managers and engineers work together to manage every aspect of your installation project. From the initial design, right the way through to final electrical testing and commissioning.

Read on to find out about each stage of the process.

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Free site survey rosette with Specialist Power logo in the middle

Free Site Surveys

Essential for any successful UPS and generator installation, every new project begins with a free site survey so we can get a detailed understanding of you and your business.

To make sure you get the correct UPS system or generator we will send one of our qualified experts to your premises and carry out a comprehensive survey. From this survey we can assess your requirements to make sure we provide you with the right power protection solution for your business and budget.

Our site surveys are always followed up with a comprehensive quotation, detailing all aspects of the proposed solution, enabling the implementation of your essential business continuity plan.

Design

At the design stage we take into consideration many factors including:

  • Current and future proofed power requirements
  • Logistics
  • Space Planning
  • Environmental requirements
  • Life-cycle cost of ownership
  • Efficiency planning
  • Carbon footprint analysis

 

Specialist Power logo alongside a pencil and ruler icon
Specialist Power logo with all the UPS and generator brand logos we work with above

We look at where the UPS should be positioned to maximise space and what sort of access is required for future maintenance and take this into consideration for all design and install recommendations.

We pay particular attention to the environment that the UPS or generator will be sited to ensure this will not impact negatively on the performance or the expected life-cycle of your systems.

The system design will be specified from a wide choice of major manufacturers that we work closely with from APC, Eaton, Socomec, Riello, Vertiv and SDMO / Kohler.

Full Electrical and Mechanical Installation

Once the design is agreed, we will then carry out a full electrical and mechanical install of the UPS and/or generator using our own team of qualified in-house engineers.

Installations can be carried out during working hours or arranged outside of office hours to minimise disruption to your business. Every installation is supported by detailed method statements and risk assessments to ensure everything complies to all current industry standards.

Our team will plan everything from initial installation works to final switch on and commission to ensure there is minimum impact on your business.

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Clipboard icon showing a installation report icon inside a large cog

Testing and Commissioning

A comprehensive and thorough testing and commissioning of a UPS system or standby generator is crucial to make sure all installations are working as planned. We provide on-site training for key personnel to ensure that the systems we install and handover can easily be monitored by your maintenance / IT team.

  • Start-up of all installed equipment
  • Demonstration of all functions
  • Certified electrical testing
  • Sign off all equipment with customer handover
  • In-depth customer training
  • Warranty validation

Most manufacturers mandate that all installations are fully tested and commissioned by a certified engineer to validate the warranty.

 

Minimal Disruption to Your Business

Our professional team will work closely with you, ensuring your UPS and/or generator installation is commissioned safely, on time and with minimal disruption to your business.

We will work closely with you to transfer your critical equipment to your new critical power protection system at a time that has the least impact to your business. Final switchover can be arranged to accommodate your final commissioning at any time of day or night to suit.

As Approved Service Partners with all the manufacturers we work with, our expert engineers will ensure all installations are completed to manufacturer guidelines. We carry out essential final checks, and power up the system so it is on-line and ready to protect your business.

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Certificate with a Specialist Power logo at the bottom

Summarising our Installation and Commissioning Services

  • Fully trained service engineers & ECA / NICEIC qualified electricians
  • All works carried out by factory trained and manufacturer approved engineers
  • Electrical installations are certified to BS7671
  • Electrical certification is provided on project completion.
  • Detailed commissioning reports
  • UK and Ireland installation coverage

Get in contact with us at Specialist Power Systems today to discuss your UPS or generator installation requirements on 01234 851155 or email [email protected]

Site Survey

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Site surveys are essential for any successful UPS or generator installation, or to evaluate and upgrade an existing setup. It is vital that a suitable site visit and survey is undertaken at the start of any project or when any upgrades are made.

Here is a quick overview of what we can offer but please read on for full details.

New installation:

  • Establish current power requirements and potential for future growth
  • Assess logistics, space planning and environmental requirements
  • Full electrical/mechanical installation & commissioning services
  • Evaluate Total Cost of Ownership (TCO)
  • Evaluate remote monitoring and maintenance plans
  • Survey site access and delivery routes
  • Determine connection points and cable routing

Existing installation:

  • A full condition report on your existing UPS and/or Generator
  • Evaluation of the viability and efficiency of your current UPS and/or Generator system
  • Total cost of ownership comparison between your existing system vs latest green technologies
  • Full electrical/mechanical installation & commissioning services
  • Evaluate remote monitoring and service plans
  • Additional load requirement evaluation

We cover more details about our FREE site surveys below. We explain what we look for during a site survey, how long it takes and why it is so important to start any project with a site visit and comprehensive site survey.

If you would rather speak to one of our experts, call us today on 01234 851155 or email us at [email protected] to discuss your survey requirements.

Free site survey rosette with Specialist Power logo in the middle
3D UPS and standby generator icons with a large tick above them

Why You Would Need a Site Survey

Site surveys are essential for new installations to get the correct UPS system or generator that meets your business requirement and budget.

Surveys are also essential for projects where a UPS or generator is already in place. Here we can evaluate the efficiency of your current setup and compare it to the latest, more advanced, and greener solutions we offer.

We also look to see if supporting parts of the UPS like batteries and AC & DC Capacitors need to be replaced.

To make sure you get the correct UPS or generator we will send one of our qualified experts to your premises and carry out a free and comprehensive survey. From this survey we can assess your requirements to make sure we provide you with the right power protection solution for your business.

Our UK nationwide surveys usually take around 2 hours and are carried out during normal working hours by one of our qualified experts.

Read on to find out what we look for when we carry out a site survey.

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Icon of an engineer wearing a hand hat holding a clipboard with a large magnifying glass above

What We Look For During a Site Survey

A survey would be carried out by one of our power management specialists who follow a comprehensive site survey audit process. We typically look at a standard set of questions to identify your power needs and highlight any potential areas that require further investigation:

  • Access the load size and electrical profile – load / voltage / battery runtime
  • Physical location and environment of UPS / generator – room temperature / floor space
  • Suitability of existing UPS and battery installation
  • Delivery route and logistics requirements – height, weight, time restrictions / is loading equipment needed, stair walkers etc
  • Assess any remote monitoring requirements
  • Ongoing maintenance and technical support requirements
  • General programme of works and preferred installation timeframe
  • Discuss existing UPS and battery installation for recycling and disposal options
  • Relocating of existing equipment

Full Quotation Provided

Our site surveys are always followed up with a comprehensive quotation for both new and existing installations. We detail all aspects of the proposed solution, enabling the implementation of your essential business continuity plan.

Our quotes are clear and easy to understand with all line items individually priced for transparency.

The system design will be specified from a wide choice of major manufacturers that we work closely with from APC, Eaton, Socomec, Riello, Vertiv and SDMO / Kohler.

All designs are chosen based on the best fit for your requirements. This might be a technical edge, smallest footprint or simply the most efficient and cost effective product to suit your budget.

If a survey includes an evaluation of an existing UPS or generator then we will provide you with a full quotation on any remedial works identified – from service and maintenance plans, UPS overhauls, battery replacements or upgrading to a new more efficient backup solution.

 

Specialist Power logo above a clipboard icon showing a quote with pound signs against each line.
Start sign above a notebook showing four ticks on a survey report by Specialist Power

If you wish to optimise an existing UPS or generator setup and wish to upgrade or expand or if you are looking to install a brand new backup power solution, then a site survey is the perfect place to start.

The experts here at Specialist Power Systems would love to speak to you so email us today at [email protected] or call us on 01234 851155 to book your free site survey.

Load Bank Testing

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Here at Specialist Power Systems, we believe load bank testing should be an essential part of your service and maintenance schedules. Carrying out regular load bank testing allows you to safely simulate how your critical power systems will perform in the event of an unplanned mains disturbance or complete power failure.

Here is a quick overview of what we offer but please read on for full details of our load bank testing services.

  • Performance testing of the UPS and generator to full load capability
  • AC & DC load banks available
  • Resistive and Reactive load banks available
  • Battery discharge tests to confirm battery integrity and certify expected runtime.
  • Proving of all installation elements within the system design
  • Full test documentation issued on completion

We cover more details about our load bank testing below.

We explain why load bank testing is so important, what we do during testing, why regular testing should be part of your routine maintenance plans and how Specialist Power Systems can give your business the reassurance that your UPS or generator will work when placed under full load conditions.

But if you would rather speak to one of our power experts, call us today on 01234 851155 or email us at [email protected] to discuss how we can give you peace of mind that your critical power systems are working to their optimum capacity.

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Why Load Bank Testing is So Important

UPS and Generators will, of course, be tested regularly as part of any standard maintenance plan provided by Specialist Power. However, load bank testing provides the ultimate assurance that your systems will operate correctly in the event of a power disturbance.

The ability to apply full load to your complete critical power infrastructure allows you to test your installation to the full capacity for which it was designed and test every part of the system.

Input supply breakers, switchgear and the correct operation of your UPS and/or generator performance will be scrutinised and checked. There really isn’t a more thorough way of testing your systems in a safe and risk free manner.

Testing in a Controlled Environment

By testing the UPS and generator under simulated load conditions without risking the supply to any connected loads, you can test and prove that your backup power solution is working at optimal levels in a controlled environment with no risk to your critical equipment.

In the same way that car safety features are tested using crash test dummies, a load bank test of your UPS and generator can provide a safe and risk free environment to replicate the effects of the worst case scenarios without presenting a risk to your actual load.

Mains fail tests and overload protection features of your systems can all be simulated to demonstrate the functionality of your back up systems.

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Efficiency & Autonomy Calculations

Load banks can also be used to calculate the electrical efficiency of your system and provide accurate loss and efficiency readings to help you understand your full cost of ownership.

By simulating not just your current load conditions but any future growth plans, a load bank allows you to apply potential loads to your critical power infrastructure in a controlled way. By measuring both input and output current readings, we can then accurately determine the full efficiency of your system.

This can then be used to calculate, over time, the full cost of ownership incorporating the full energy costs to run and operate your critical power systems.

Utilising the ECO mode features of your UPS we can show the different levels of power losses that can be achieved, allowing you to determine the correct mode of operation for your business.

Utilising a load bank also allows us to apply the exact load that your system is currently running at. By simulating a mains fail event and monitoring the battery performance, we can very accurately determine how long you can expect your system batteries to operate for.

The time that the UPS can perform on battery power is usually referred to as the UPS autonomy. This is an important figure to know when assessing the runtime capabilities of your system. Consideration can then be given to extending, or in some cases, reducing this value, depending on your business requirement.

3D UPS battery icon with a large clock face alongside from Specialist Power
3D UPS and generator icons with electricity coming out of the top on full load

What Load Bank Testing Is

A load bank is an independent device that can accurately mimic an operational load which your backup system is designed to support.

Usually, we connect a resistive load using heavy duty resistors onto the output of the UPS or generator. This discharges the electrical energy as heat via the resistive elements. The resultant heat is dissipated using blowers installed within the load bank.

To simulate different types of customer loads, we can also add capacitors or inductors to the load bank which will replicate the effects of reactive or inductive loads.

To recognise potential weaknesses and to reduce risks, our load bank testing simulates maximum load conditions to stress the UPS, generator, and the entire electrical supply infrastructure.

When To Carry Out Load Bank Testing

Load bank testing can be carried out at various stages of ownership:

 

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Installation and Commissioning

When installing a new UPS or generator is it important to ensure that the newly commissioned back up power system is 100% reliable before it goes ‘live’ for the first time.

Whilst load bank testing can be used as part of the commissioning, it can, for some battery builds and sites be more accurate to test 2-3 days after the initial commissioning.

This is especially true if full autonomy tests are required as part of the hand over. This allows for the batteries to fully charge, settle and equalise across the battery strings and individual battery blocks.

Regular preventative maintenance

Specialist Power strongly advise to consider load bank testing in your regular service and maintenance plan. Running regular testing will not only reassure you that your critical power equipment is running as it was designed to but also to highlight any potential issues that can be fixed or replaced as a preventative measure.

Load bank testing is a popular upgrade to one of our SPECIALIST PLATINUM, SPECIALIST GOLD or SPECIALIST SILVER service and maintenance packages.

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Ad hoc testing

If you choose not to include load bank testing in a service plan then we offer ad hoc load bank testing by one of our fully trained service engineers.

If you wish to speak to one of our experts about load bank testing and how we can make sure your critical power equipment is regularly tested then get in touch with us today on 01234 851155 or email [email protected]

Relocation and Removal

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Your business maybe expanding, and you need to move location. You may wish to downsize to a smaller premises. Or you simply wish to move your current UPS and/or generator to a different part of the building.

Our specialist relocation and removal services are what you need. Here at Specialist Power, we treat every removal or relocation like a new install and our in-house project team will manage everything from start to finish.

We know that moving house comes with complications and stresses. Moving critical power systems adds further complexities but with over 20 years’ experience and industry knowledge, our relocation and removal services will facilitate a smooth transfer from old to new location.

Here is a quick overview of what we can offer but please read on for full details of our services.

  • Turnkey UPS and/or generator relocation or removal service
  • Removal, relocation, installation, and commissioning by trained engineers
  • All electrical works carried out to BS7671
  • Specialist logistics team to manage all transportation
  • All works accompanied by full risk assessment and method statement
  • UK nationwide service available

 

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Two hands holding a Specialist Power logo like a ball

We cover more details about our removal and relocation services below. We explain what is involved with both a UPS and generator removal and how our turnkey approach and attention to detail will make sure your systems removal is always in safe hands.

But if you would rather speak to one of our experts, call us today on 01234 851155 or email us at [email protected] to discuss your relocation/removal requirements.

Professional Approach to Every Relocation or Removal

Much like our UPS and generator installations, our fully qualified engineers follow a professional approach to every relocation or removal.

Our project managers and engineers work together to manage every aspect of your project. From the initial survey, right the way through to final electrical testing and commissioning.

Our engineers are qualified to Institution of Electrical Engineers (IEE) standards and all electrical installations meet strict National Inspection Council for Electrical Installation Contracting (NICEIC) criteria and conform to BS7671.

We offer a full turn-key solution to carry out the removal, relocation, installation, and commissioning of your UPS and/or generator efficiently and safely wherever and whenever required.

Read on to find out about each stage of the process.

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Free site survey rosette with Specialist Power logo in the middle

Full Site Survey at Existing and New Site/Location

We always start every new project with a free site survey of both the existing and new sites so we can get a detailed understanding of your requirements. A survey would be carried out by one of our power management specialists who follow a comprehensive site survey audit process.

We typically look at a standard set of questions to identify your removal or relocation needs and highlight any potential areas that require further investigation.

  • Existing installation and configuration
  • Proposed location and power availability
  • Logistics and transportation requirements plus any delivery permits
  • Identify crane, Hi-Ab requirement
  • Electrical infrastructure and capacity
  • Planning Consent
  • Disposal requirements

 

Risk Assessment / Method Statement

Once we have a complete understanding of the project, we will provide a detailed, site specific risk assessment and method statement (RA/MS).

Our comprehensive risk assessment will evaluate not just the potential health and safety aspects of the project but also consider the risk to your business.

We will highlight key points in the process that could mean temporary disruption to your critical supplies to allow you to manage and control these risks, minimising down-time and business critical operations.

Our method statement will provide a detailed step by step process that will ensure a smooth and efficient relocation of your critical infrastructure. We will highlight areas that require particular attention and clearly define what actions will occur and when.

Barometer icon with a risk sign above it
Timeline icon with clock at one end and a target with arrow in the bullseye at the other end

Our RA/MS will include (but not limited to)

  • Decommissioning UPS and/or generator
  • Electrical disconnection and make safe protocols
  • Battery isolation and disconnection
  • Safe transportation of equipment using approved logistics specialists
  • Electrical installation method
  • Health and safety considerations
  • Commissioning procedures
  • Final testing and handover
  • Timeline for all works
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Preparation Works Come First

We will ensure that the relocation process is as smooth as possible with the minimum amount of down-time or disruption to your critical services. We will perform as much non-intrusive elements of the project before any of the de-commissioning process begins.

We will install all the new electrical infrastructure and containment prior to the relocation works so that when the time comes to move the systems, everything is already in place for re-connection.

If re-locating a generator, we will have the new hard standing concrete plinths and any groundworks, including fencing or enclosures completed and ready to go.

Decommission of the UPS / Generator

When all the pre-works are completed and we have the green light to commence critical works, we can start the process of safely de-commissioning your existing systems. Both the UPS and generator will be electrically isolated and all supply breakers will be shut down and locked off.

With Specialist Power Systems, safety comes first so we make sure that the UPS and/or generator is powered down completely and perform all electrical dead checks as per manufacturers recommendations. All works will be carried out by fully trained and qualified engineers.

Power shut down icon
Image of a fuel gauge showing empty

UPS batteries will be disconnected, palletised and shrink wrapped, ready for the transportation stage. Similarly, the generator will be drained of fuel and other contaminants so that it too can be re-positioned with minimum risk to the environment from accidental spills.

All electrical cabling will be removed and termination points made safe.

Transportation of Critical Equipment

Once safely de-commissioned, your critical equipment can now be physically relocated to its new destination. This could be a new location on your existing site or require road transport to a completely new site.

Specialist Power engage fully qualified logistics teams to ensure the movement of your UPS and generators is handled by professional and competent experts.

We can manage simple re-locations requiring just a pallet truck to an adjacent room or building to complex removals requiring, stair walkers, hi-abs, cranes or other specialist transportation skills.

Your critical equipment will be positioned securely in its final location, ready to be electrically installed by our team of experts.

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Recommissioning power icon with arrows going around the outside

Re-Commissioning and Final Testing

Once the UPS/generator are safely positioned in their new location they will be mechanically inspected to ensure there has been no accidental damage during the transportation process.

Our electrical team will ensure that your critical systems are re-installed by our ECA / NICEIC qualified electricians and certified to BS7671.

The UPS batteries will be re-assembled and connected to the UPS ready for commissioning. Your generator will be re-fuelled and primed in preparation for final testing and handover. Our specialist UPS and generator engineers will carry out the final checks and ensure that we hand over your newly located systems fully operational and ready to protect your business.

For full details of our installation and commissioning procedures please click here

Whatever size UPS or generator you have, we can safely and professionally relocate to a new site or simply remove and dispose. Get in touch with us today on 01234 851155 or email [email protected] to find out how we can help.

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UPS Repairs

Large 3D UPS icon with spanner over the top and emergency icon above

It is impossible to predict when an Uninterruptible Power Supply will suffer from a fault or failure – resulting in a potential loss of all critical backup systems.

When something unexpected goes wrong, leaving your business exposed to mains disturbances and power outages, it is vitally important to get your UPS back up and running in the fastest possible time.

Specialist Power can help with our onsite emergency repair services.

Our engineers can diagnose and repair a wide variety of out of warranty UPS devices from most manufacturers, including APC, Eaton, Vertiv, Socomec and Riello (don’t worry if we haven’t mentioned your brand, we can still help) – all with no contract necessary.

Here is a quick overview of what we offer but please read on for full details of our emergency UPS repair services.

  • Emergency UPS repairs for out of warranty units
  • First time fix
  • No service contract required
  • Free Telephone Technical Support
  • Fault diagnosis and comprehensive report
  • Detailed repair quotation following investigation
  • Rental units available during repair process
  • Any size or brand of UPS covered
  • Option for offsite repairs for smaller units under 3kVA
3D UPS icon with Out of Warranty sign above
Stopwatch icon with a sand timer above

We cover more details about our UK nationwide UPS repair services below. We explain how our services work and how our team of engineers will have you back up and running as quickly as possible.

If you would rather speak to one of our experts, call us today on 01234 851155 or email us at [email protected] to discuss your UPS repair requirements.

How Our Repair Services Work

As back-up power specialists, we understand how important your critical power system is and how unprotected power can have serious implications to the operation of your business.

When a problem occurs without warning, our emergency repair service is exactly what you need.

Our expert technical support team will endeavour to initially diagnose the fault over the phone and in some cases, it can be possible to get you back up and running without the need for engineer attendance.

If the fault cannot be rectified through initial tech support, we can despatch a trained engineer to site within 4 hours to carry out a detailed fault diagnosis of your UPS system. 

Engineer icon with a stopwatch showing 4 hours
Inspection report notepad with a pencil icon next to it

To make sure we can diagnose the problem and get power back online as quickly as possible our engineers will do the following:

  • Site visit to fully inspect the UPS
  • Detailed report with recommendations for repair
  • Comprehensive and itemised repair quote
  • All repairs carried out by fully qualified UPS engineers  

If your UPS is under 3000VA then our engineers can bring the UPS back to our test centre for evaluation.

To make sure your business is not without any critical backup we can offer a temporary UPS hire option where you can loan a UPS on a short term basis until your UPS is back up and running.

Full Inspection

At an agreed time to suit you, one of our fully qualified service engineers will carry out a site visit to fully inspect, analyse, and identify the causes of any faults or failures with your Uninterruptible Power Supply.

This allows us to make sure that we identify the following:

  • What the problem is
  • What is needed to carry out any repairs
  • Quote accurately
  • Order any spare parts that are necessary

Once we have carried out a full diagnosis of any faults, we can then provide you with a full report so that you can make an educated business decision on what to do next.

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Repair sign with a spanner alongside a replace sign with a continuous circle

Repair or Replace?

After every repair survey we will provide the customer with a comprehensive and detailed report on the condition of the unit together with our recommendations and costs for repair.

We always want what is right for the customer so will never recommend a repair if this is not necessarily the right option for your business.

In some cases, a repair is not economically viable, especially when costs are extensive. Depending on the age of the UPS and availability of spare parts, it is sometimes more cost effective to consider a replacement UPS.

We will provide you with both a repair option and the cost of a replacement system so you can make an informed decision for what is right for your business.

Key considerations to help you make that decision will be:

  • Cost of repair
  • Age of UPS
  • Availability of spare parts
  • New UPS efficiency savings
  • Replacement UPS warranty cover
  • Current UPS sizing versus actual load

If we feel that a UPS repair is not necessarily the best way forward, will provide you with our recommendations and pricing on a suitable replacement UPS to consider. 

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Specialist Power One Year parts and labour warranty logo

12 Months Warranty on All Repairs

For that extra peace of mind and to mitigate costs beyond maintenance and repairs related to normal wear and tear, Specialist Power Systems guarantee all repair units for 12 months from handover.

No Contract Required

If your critical power system is out of warranty and you don’t have a service and maintenance contract in place, then don’t worry. With our emergency UPS repair service, we can have a fully trained engineer on site within 4 hours to fix any problems and get your UPS back online.

As a totally independent UPS repair specialist, we can provide a repair service to most major brands, with access to parts and technical support from leading manufacturers such as Riello, APC, Vertiv, Socomec and Eaton.

 

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Specialist Power logo with a telephone and email icon above

If your current service provider is not giving you the support you expect, then why not give us a call and see if we can help.

Get in contact with us at Specialist Power Systems today to discuss your UPS repair requirements on 01234 851155 or email [email protected]

UPS AC & DC Capacitor Replacement

AC capacitor icon with two arrows slowing around the outside

To ensure your UPS is in good working order (much like batteries and fans), AC and DC capacitors will need to be replaced during the working life of an Uninterruptible Power Supply. 

Each manufacturer varies slightly in their recommendations for replacement but typically this is between 5 & 7 years. Capacitors have a specified design working life and it is strongly recommended that they are replaced in line with the manufacturers’ guidance. 

Capacitors will degrade over time and without regular planned and preventative replacement they can fail unexpectedly, causing costly downtime and placing your critical infrastructure at risk until a repair can be carried out.

 

Here are some of the key features of our AC & DC Capacitor replacement services but read on for full details of how we can help.

  • Full replacement of AC & DC Capacitors
  • Replacements carried out by experienced, trained engineers
  • In hours and out of hours replacement
  • Disposal in accordance with Environment Agency Regulations

We cover more details about our AC & DC Capacitor replacement services below. We explain what a capacitor is and how it operates in your UPS and how you can help to extend the working life of the capacitors.

But if you would rather speak to one of our experts, call us today on 01234 851155 or email us at [email protected] to discuss your capacitor replacement requirements.

Clock icon showing out of hours available
Heart icon alongside AC capacitor icon

How to Prolong the Working Life of UPS Capacitors

AC and DC capacitors will suffer from a loss of performance over time. There are several key things that will improve or prolong the life of the UPS capacitors:

  • Maintain the ambient room temperature as close to 21c as possible
  • Regular UPS Maintenance and testing
  • Maintain good airflow around the UPS
  • Ensuring humidity levels within the UPS room are controlled

The two main causes for early capacitor failure are as follows:

  • Working at high temperatures (whether ambient temperature or internal working temperature) – for example, oil filled capacitors exposed to excessive heat can cause the internal liquid to expand and create a dangerously high pressure increase within the component.
  • Operating under excessive load conditions – all capacitors are designed to withstand brief periods of high load conditions but if they are continually exposed to overloading or high current situations, the sooner the capacitor will require replacement.
AC capacitor icon alongside a thermometer showing hot
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AC & DC Capacitor Disposal

AC & DC Capacitors are deemed as Hazardous Waste and you must dispose of old capacitors in line with Environment Agency regulations.

As part of our ISO 14001 environmental management accreditation, Specialist Power Systems are committed to ensuring that all capacitors are disposed of and recycled accordingly.

As a certified waste carrier, we will ensure all capacitors are disposed of and recycled with a full audit trail and certificated disposal.

What a Capacitor Does

A capacitor is an electrical device that stores and releases electrical energy. These devices come in various sizes based on the amount of electrical energy they are required to absorb.

Capacitors contain two conducting surfaces, usually electrodes or metallic plates, with a third element called the dielectric medium, which acts as an insulation device between the two conductors.

The total capacitance rating (how much charge can be stored by a capacitor) is determined by the thickness of the dielectric layer and is measured in farads.

Most UPS will have three main types of capacitors and each one has their own specific job in the function of a UPS system. Read on to find out about each of these different types.

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AC Input Filter Capacitors

The purpose of the AC (Alternating Current) input filter capacitors is to smooth input voltage transients and fluctuations that can be found in your incoming electrical mains supply. They clean up the input waveform and reduce the harmonic content of the supply voltage.

This is important to improve UPS efficiency and operation and helps to improve stress on the UPS input components. Input capacitors are sometimes referred to as power factor correction capacitors.

DC Capacitors

DC (Direct Current) capacitors are connected within the UPS rectifier section. Their primary functions are to smooth the DC waveform and to reduce ‘ripple current’ created by the conversion from AC to DC by the rectifier IGBT’s.

This smoothing of the DC waveform is known as supply voltage filtering. Where batteries are connected directly to the rectifier, the condition of the DC capacitors will have a direct impact on the life-span of the batteries connected to them.

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AC Output Capacitors

AC output filter capacitors are connected directly to the UPS output stage and ensure that the final waveform received by the critical load is as smooth as it can be. This also contributes to the overall efficiency of the UPS.

Output capacitors also filter out the PWM (Pulse Width Modulation) frequencies generated by the control and switching of the output inverter IGBT’s.

 

So, if you are looking to replace your UPS AC & DC Capacitorors or would like to speak to an expert about any of your back-up requirements, get in touch with us today on 01234 851155 or email [email protected] to discuss how we can help.

 

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For more information, please call us on +44 (0) 1234 851155 or send us a message below.