Once the mains power returns, the switch will then transition back to the utility connection and shut down the generator cleanly. This all occurs automatically without needing any manual intervention, living up to its name as an “automatic” changeover switch. They play a key role in delivering peace of mind and maintaining business continuity should the power go out.
When is an Automatic Changeover Switch Needed?
There are a few key situations where installing an automatic changeover switch makes good sense:
• You rely on electronic medical devices or other critical life safety equipment. An outage could put you/others at risk.
• You have sensitive electronics or appliances that could sustain damage from an abrupt loss of power.
• You run a commercial property or business where outages cause major disruption and financial losses. This includes retail stores, petrol stations, farms, hospitality venues and more.
• Your home/building experiences frequent short power cuts or planned grid maintenance shutdowns.
• You want to improve emergency preparedness and resilience from increasingly common extreme weather events.
If keeping essential equipment running or avoiding downtime is a priority, then an ATS integrated with a generator can fulfil this need. They provide the most convenient control solution rather than having to manually switch over plugs and circuits.
Key Features to Look for When Choosing an Automatic Changeover Switch
With a basic understanding of what ATSs do, the next key consideration is choosing the right ATS for your situation. Some key variables to consider include:
• Power load rating – Ensure the switch can safely handle the cumulative starting and running wattages of all circuits/devices it will supply. Undersizing can lead to overload trips or failures to start.
• Number of poles – The number of isolated contact points inside the switch. This determines if it can switch single-phase, 3-phase, or both to generators.
• Transition type – Switches may be break-before-make, overlapping, or in-phase. This influences possible transfer switching delays.
• Enclosure type – Indoor, outdoor, surface mount or flush mount to suit environments. Weather and UV-resistant ratings are important if installed outside.
• Monitoring and alarms – Higher-end systems feature status monitoring, event logging of outages, and alarms to alert if maintenance is needed.
• Manual override capability – While meant to operate automatically, manual switching control comes in handy for testing purposes or generator maintenance.
• Approvals and warranty – Ensure the unit is properly approved and certified for safety. Longer warranties also provide peace of mind on reliability.
By carefully matching technical specifications and capabilities to your site’s exact needs, you can ensure optimal backup switching performance and protection. Consult manufacturer sizing guidance for more precise load calculations.
Buying a New Generator in the UK – Key Considerations
While the automatic changeover switch provides the brains to handle switching duties, it’s the generator that supplies the actual backup power. Before you buy new generators in the UK, either for home or commercial use, keep these essential factors in mind:
Fuel Type – Diesel and petrol generators are the most common, with pros and cons to each regarding fuel storage, emissions, noise and operating costs. Gas-powered variants are also available. Evaluate which works best for your situation.
Output and Load Demand – Correctly sizing the generator’s power capacity and startup capabilities is crucial so it’s not overloaded but also isn’t overspecced. Consult an electrician on load requirements.
Single or Three Phase Power – Match your voltage and phase needs depending on if you simply have split phase 230V single phase supplies or require 400V three phase power.
Manual vs Electric/Remote Start – Manual pull cord starting offers the lowest cost but automatic electric start generators are far more convenient while remote key fob or web-based wireless control takes convenience further.
Noise Levels – Important for both outdoor units close to homes alongside indoor safe operation. Super silent generator models help minimise noise pollution.
Enclosure Type – Open frame or closed canopy variants have implications for weather protection, noise damping, venting requirements and ease of access for servicing.
Fuel Tank Capacity – Bigger tanks allow longer runtimes between refuelling but take up more space. Calculate the ideal capacity based on the expected backup time needed.
Emissions and Legal Compliance – Relevant emissions regulations and permits must be reviewed depending on operating location, especially for diesel units in population-dense areas.
By carefully evaluating these aspects based on intended generator applications and sites, an appropriately matched system can provide reliable backup power for years to come. Consult technical specifications from reputable manufacturers operating in the UK power generation industry when comparing offerings in the market.
Professional installation is also advised over DIY attempts given the complex electrical integration involved and relevant safety standards to abide by.
ATSs paired with generators offer a straightforward means to avoid the considerable disruption power cuts can cause. With resilient backup power on tap, critical operations can continue unimpeded. Key highlights covered in this introductory guide include:
• ATSs automatically transition between mains supply and generators upon outages. This prevents having to manually swap cables during blackout chaos!
• They’re especially valuable for sites running sensitive equipment or where keeping the lights on is essential for operations.
• Carefully matching switch specifications and features to your site’s exact needs ensures optimal reliability and performance.
• Key considerations before you buy new generators in the UK include fuel type, power output, noise, legal compliance and achieving ideal runtimes from integrated fuel tanks.
By investing in the right emergency power provisions for your situation, you can have confidence that short-term grid supply interruptions or longer-term outages won’t bring things grinding to a dark halt. Consult generator and switch specialists to properly assess your requirements.
