Blog posts of '2026' 'February'

When power cuts strike, all you need is a reliable backup system. Many buyers in the UK turn to used generators for sale in the UK since they offer value without costing too much. However, a lot of people overlook whether the existing generator changeover switchgear is compatible or not. This checklist focuses on key technical matches as it draws from real-world issues that are seen in the field. Get these right, and your setup runs smoothly.

Matching Phases for Balanced Power Flow

The phase setup is foundational. Most UK homes use single-phase at 230V. Businesses often need a three-phase at 400V. A used generator must align with your generator changeover switchgear. Single-phase generators work well with lighter loads. Three-phase handle motors and heavy gear are better. Check the generator's nameplate for phase count and then compare it to your changeover panel's rating.

An imbalance of over 5% leads to voltage swings, and it stresses windings and reduces lifespan. For used units, inspect for rewiring options. Some people allow phase conversion, but it requires expert input. Always verify fuse types: one 100A fuse signals single-phase, three indicate three-phase. This match prevents overloads in critical moments.

Tackling Voltage Regulation Challenges

Voltage stability keeps equipment safe. Used generators may have worn components affecting output. Your generator changeover switchgear expects steady levels. Look at the automatic voltage regulator (AVR). It boosts low volts or trims highs.

It is a good idea to test the used generator under load and simulate real use to spot dips. Older models might lack modern AVRs, causing flicker in lights or sensitive tech harm. Upgrade if needed, but confirm switchgear handles the range. Power conditioners can help, yet direct compatibility is much better than add-ons.

Maintaining Frequency Stability in Operations

Frequency must hold at 50Hz in the UK. Used generators vary by engine speed, and most run at 1500 RPM for four-pole sets. This balances efficiency and noise.

Check the governor: mechanical or electronic. It adjusts speed for load changes. Instability causes clock drift or motor issues.

Used units with high hours might have governor wear and lead to hunting, where speed oscillates. Your switchgear senses frequency for safe switching. ATS panels wait for a stable 50Hz before transfer.

This checklist arms you for smart buys. Phase match avoids imbalances, and frequency hold guarantees reliability. Used generators for sale in the UK abound, but compatibility is what seals the deal. Blades Power Generation stocks options that meet these needs. Browse our selection and find the perfect match.

In critical operations, power interruptions can cause a lot of issues. Many businesses rely on seamless backups. An automatic changeover switch stands as the protector. It shifts from mains to generator power without a hitch. Yet, timing is crucial. If the power transfer is too slow, the risks become higher.

The Basics of Transfer Timing in Automatic Changeover Switches

Automatic changeover switches detect the mains failure and start the generator. Then, they transfer the load. This entire process relies on speed. If there is a sensitive setup, fast transfers are a must. The slow transfer can work on less demanding needs.

Consider the mechanical aspect of this. Switches monitor the voltage levels, and a drop triggers action. Two sources are watched, the mains and the generator. On failure, it signals the start, and once it’s stable, the load starts to shift. This process, however, varies by model.

These quick shifts happen un under 50 milliseconds. They prevent any perceptible dip. Seconds, however, span from one to ten, and it is common in standard commercial use. The difference is in the design. Motorised switches with electromechanical interlocks get faster responses.

Milliseconds Versus Seconds: Choosing the Right Speed

Milliseconds are best for environments where even a brief outage can lead to troubles. A slip-second loss can corrupt data in places like the medical sites that run life-support gear. Delays risk patient safety. Cold storage units also preserve perishables. Temperature spikes from slow transfers can lead to spoilage. Restaurants also depend on refrigerators, and inventory loss can cut profits.

Seconds, on the other hand, works well for general backups. They allow the generator to stabilise. No rush means less wear, but push beyond ten seconds, and issues start to arise. Some or all of the equipment might reset and halt processes.

Our compact switches by Blades Power Generation offer rapid detection. IT integrates with the new generators for sale in the UK. It is silent and reliable, the combination that ensures minimal downtime. We test each unit, and schematics and reports come standard.

When Delays Turn Dangerous

Delays of more than 15 seconds mean danger. Servers crash in data rooms, and alarms beep in medical equipment. Cold storage thaws stocks, leading restaurants to face health code violations.

Signs include frequent resets. Or equipment faults post-transfer. Overheating points to instability. Address root causes. Generator sizing matters. Undersized units take longer to ramp up.

High-value buyers seek robust solutions. Our switches, when combined with new generators for sale in the UK, form a solid defence.

Explore our range of automatic changeover switches and find the perfect fit for your needs.