Not all Voltage Stabiliser solutions are designed or built the same!
For the lay person, differentiating between the numerous suppliers and various design technologies utilised to deliver voltage stabilisation can often be a daunting task and it is not always clear as to which technology is best for a particular application.
As one of the world’s leading specialist ‘Quality’ manufacturers and suppliers of Voltage Stabilisers and associated Power Line Conditioning solutions we offer probably the widest choice and cross section of alternative design types and models.
Below we discuss the various design topologies available in today’s market and highlight the advantages, disadvantages and most appropriate application for each topology


Design Advantages
- Size and weight advantages over other methods of stabilisation
- Fast speed of response to voltage changes – ideal for 95% of all applications
- Very competitively priced
- Negligible output waveform distortion
- Not Frequency dependent
- Will attenuate voltage spikes (if required)
- Unaffected by load or power factor changes
- Low cost of ownership with ease of serviceability
- Endurable with long life expectancy
Design Disadvantages
- Moving parts requiring a certain amount of limited maintenance
- Lower speed of response in comparison to the more costly solid state design topology solutions
Summary:
Sinalda UK Servo Electronic based Solutions

Design Advantages
- Brushless - virtually Maintenance Free with no contact wear or requirement for carbon brush replacement.
- Highly reliable, efficient and robust design – ideal for the tougher style industrial applications
- Oil Cooling Option - delivers smaller physical size and makes the topology ideal for applications in more humid environments
Design Disadvantages
- Usually less price competitive when compared to servo electronic design based systems
Summary:
Sinalda UK Three Phase Magnetic Induction based Solutions

Design Advantages
- Not restricted in Stabiliser Capacity as there is no requirement for large motorised Variable Transformers.
- Solid State - no moving parts, virtually maintenance-free.
- Low/simple maintenance - just fans and general cleaning required.
- High Efficiency
- Cost-effective especially on larger kVA ratings.
- Negligible Output Waveform Distortion.
Design Disadvantages
- Output Voltage accuracy deteriorates to ±5% on large input voltage swings (>±30%)
Summary:
Sinalda UK based Solutions

Design Advantages
- Solid State – with no moving parts – virtually Maintenance Free
- Ultra-fast speed of response to voltage changes
- Extremely accurate output voltage - accuracy better than 1%, typically 0.5%
Design Disadvantages
- Less price competitive when compared to servo electronic design based systems
- High weight to kVA ratio compared to servo electronic designs
Summary:
Sinalda UK Saturable Reactor based Solutions
Given the extremely high cost of these type Stabilisers, and given the advances made in recent years in the design of Static Electronic solutions, Sinalda UK no longer offers Saturable Reactor based solutions.

Design Advantages
- High speed of response to voltage changes
- Highly dependable Output voltage - voltage does not collapse on high overload or severe input voltage drop
- Solid State - No moving parts and virtually maintenance free.
- Competitively priced - especially for ratings of 5 kVA or below, where the nominal input voltage can vary widely
- Inherent ride-through capability - ensuring that in the event of a short break of up to 3 milli-seconds in duration output is maintained.
- Highly reliable -with extremely high MTBF performance
Design Disadvantages
- Not generally price competitive in ratings above 10 kVA
- High weight to kVA ratio compared to servo electronic designs
- Frequency Dependent - not ideal for applications where severe frequency variations are an issue
- Not the quietest - due to magnetostriction there is a tendency for slight transformer hum and a result it is normally best practice not to install too close an employee’s workstation or audio recording equipment