TÜV SÜD – Singapore


Meeting The Stringent Demand Of TÜV SÜD Power Quality Requirements


Case Study For TÜV SÜD X Ashley Edison

Product testing and certification are vital to ensuring functionality, quality, and safety in consumer and industrial markets. End-users rely on manufacturers to ensure that the delivered products comply and operate within the given specifications.


In order to achieve regulatory compliance, manufacturers engaged the services of 3rd party testing & certification providers. Through these providers, products are put through various tests, including electromagnetic compatibility (EMC), electrical safety and mechanical testing. 


TÜV SÜD is one of the largest testing, inspection and certification providers in the world. In its mission to help companies manage product risk, it also strives for perfection for its testing facilities.


In this case study, we’ll explore how Ashley Edison (UK) adds value to TÜV SÜD’s persistence in providing top-quality services. 





About TÜV SÜD 

TÜV SÜD is a German-based company with a history spanning more than 150 years. Throughout the decades, TÜV SÜD has proved to be a reliable partner in managing the technological risks that come with every innovation.


With more than 25,000 employees spanning over 1,000 locations, TÜV SÜD is the preferred choice of companies for safety, security and sustainability solutions. It offers a range of services that help companies mitigate end-to-end risks of the product development lifecycle. This includes auditing, testing, certification, inspection and technical advisory.


As the leading testing, accreditation & inspection solution provider, TÜV SÜD serves customers in various industries, including chemical, retail, energy, healthcare, manufacturing and automotive. TÜV SÜD is backed by a team of cross-discipline experts and is much sought-after as an accreditation gateway to major regional markets. 


TÜV SÜD not only sets an unprecedentedly high standard in quality and safety but is also pioneering change on a global scale. It believes that sustainability is key to future innovations and technological growth. As such, TÜV SÜD is actively contributing to high-impact projects around the world.


The Importance Of Product Testing & Certification

According to GlobeNewswire, the testing, inspection, and certification market is expected to be worth $143.3 billion by 2027. This underscores the demand for professional testing and accreditation service and demands for solutions providers like TÜV SÜD.


Testing and certification ought to be an essential part of product development strategy. Here are a few key benefits of adopting testing & certification as part of the product development framework.


Health & Safety

Even the most competent hardware designers couldn’t guarantee that an electronic product is safe, reliable and functional. Design errors and oversight can cause not only electrical hazards to end-users but also interfere with the operational reliability of other electronic equipment. Laboratory testing ensures that potential electrical issues are identified and ironed out in subsequent prototypes. 


Regulatory Compliance

Developed nations and most countries require electrical products to be certified against certain standards before they are allowed to enter the market. For example, the EU market requires products to be CE-certified, which is an indication of compliance with EU legislation. In the US, electrical products need to be UL-listed to comply with the National Electrical Code. 


Customer Assurance

Some companies, particularly large brands, get their products tested and certified even if it’s not required by the law. This move indicates the company’s commitment to product quality and reliability and instils confidence amongst the consumers. 



Why TÜV SÜD’s Service Quality Hinges On Clean Power Supply

TÜV SÜD has set up test laboratories in major cities as it serves as a reliable testing partner for electrical, electronic, and even automatic voltage regulator manufacturers. The locations of these laboratories include Singapore, a major business hub in the South East Asia region.


As a testing & certification solution provider, it relies on cutting edge instruments to conduct testings against industry standards. For example, EMF testing requires measuring electromagnetic radiation emitted from electronic products. In order to achieve precise results, TÜV SÜD uses highly sensitive equipment to measure the level of EMF exposure. 


The same goes for electrical safety testing, where products are tested for high-voltage endurance, current leakage, insulation resistance and ground continuity. These tests are held in TÜV SÜD’s laboratories with the aid of cutting-edge test equipment. 


TÜV SÜD recognises that each of its equipment is reliant on a clean and stable incoming power supply. Without a clean and stable incoming voltage, the test equipment may not function reliably and thus, affecting TÜV SÜD’s commitment to rendering the best testing service. 


Despite Singapore boasting one of the best electric power transmission and distribution systems in the region, TÜV SÜD continues to invest in in-house power solutions for its infrastructure and laboratories. TÜV SÜD realises the importance of deriving a clean power supply from trustworthy AC automatic voltage stabilisers and transformers.


How Ashley Edison(UK) Meets TÜV SÜD’s Demand For Stable Testing Services


TÜV SÜD’s search for proven power line conditioning solutions ended with Ashley Edison (UK). The automatic voltage regulator manufacturers have a long-standing reputation for providing top-quality AC automatic voltage stabilisers to various industries. Since its inception, Ashley Edison (UK) has provided clean incoming voltage supply to organisations of all sizes through its range of voltage stabilisers and associated power conditioning equipment.


In a quest to achieve clean and stable voltage, leading testing and certification provider TÜV SÜD Singapore appoints Ashley Edison(UK) in 2008 as an Official Partner to supply voltage stabilising products to their premises and laboratories.





Since then, Ashley Edison(UK) has equipped TÜV SÜD Singapore with the following products to complete their test laboratories setups:


  • Automatic Voltage Stabilisers (Model: SES Series)
    • Single-Phase: 3 KVA x 1 unit
    • Single-Phase: 5 KVA x 1 unit
    • Single-Phase: 10 KVA x 1 unit
    • Three-Phase: 150 KVA x 1 unit
  • Variable Transformers
    • Three-Phase Motorised: 160 Amp x 1 unit
    • Three-Phase Manual: 25 Amp x 1 unit
    • Single-Phase Manual: 100 Amp x 1 unit


1. Automatic Voltage Stabilisers

Ashley Edison (UK) SES-H Series of automatic voltage stabilisers (some call automatic voltage regulators / AVR) are designed for 3-phase applications and rated for loads between 6 – 600 kVA. The SES-H servo AVRs are ideal for ensuring a clean incoming voltage and protecting equipment from noise and transient. 


Key features


  • High precision, ± 0.5% output voltage accuracy.
  • Forced-Air Cooling for enhanced cooling and better efficiency.
  • Independent Phase Balancing & Control – automatic voltage sensing & precise regulation to ensure the individual phase voltages remain stable regardless of load change or unbalance. 


2. Variable Transformers 

Ashley Edison (UK) AE & MAE Series of variable transformers deliver distortion-free AC output for a diverse range of applications. They are commonly used for QC testing, burn-in and low voltage tests. The AE & MAE Series is ideal for delivering precise voltage control for TÜV SÜD’s laboratories. 


Key Features

  • Distortion-less voltage control
  • Trouble-free endurable mechanical construction for long life
  • Low operating torque   


The Results 

As a global industry leader, the competent team at TÜV SÜD knew exactly what they needed to remain as an industry standard-bearer for product testing, certification, and inspections. 


The fitting of Ashley Edison(UK) Automatic Voltage Stabilisers and Variable Transformers enabled test laboratories to receive clean, consistent, and accurate incoming voltage supply.


Today, TÜV SÜD successfully continues to uphold some of the highest Quality Control standards in the market, rendering unrivaled testing & certification services to its clients.


To learn more on how to completely stabilise your voltage supply, drop us an email at [email protected].


For more case studies on how Governments have also adopted these advanced voltage regulating technology, read about their projects here.



AVRs up to 150 kVA | Variable Transformers up to 160 Amp
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Stay Safe With Greater Protection

As safety is our utmost priority, Ashley Edison prepares for every scenario possible
—taking the puzzle out of your protection.

Designed And Engineered With Safety In Mind

We leave nothing to chance when it comes to larger capacity units (≥400KVA). By installing high-quality protective acrylic shields in front of live parts, we ensure the safety of your personnel at all times. For enhanced protection during installation, all distances between uninsulated metal parts, busbars, and cable sizes are compliant with IEC61439-1 and IEC 61439-2 guidelines.

Outfitted with fireproof cable trunking, this protective solution safeguards against long fire exposure even in hazardous areas and explosive atmospheres—providing maximum safety for mission critical applications.

Fuss-Free Installation. Seamless Operations.

To ensure ease of installation, Ashley Edison addresses the concerns of contractors and installers by keeping it simple.



We keep the installation process simple and streamlined by allowing sufficient working space for installers. Taking the nut and bolt intrusions into consideration, we ensure that the distance between the uninsulated metal parts, the busbars, and cable sizes are compliant with IEC61439-1 and IEC 61439-2 guidelines.


Even in units with larger capacities, all busbar terminals are clearly marked out, and well positioned in line for easy identification of individual input and output terminations. Installation of these terminations are similar to those practised in high voltage transformers.

Easy Maintenance

Annual Ocular Maintenance
Visual Inspection 230

Conduct Visual Inspection On Voltmeter:

Ensure reading is set to your desired set output voltage value (e.g. 230V).

LED Status

Ensure LED Status Indicators are at “Normal”.

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Visual Observation Of Variable Transformer Surface:

Use airbrush for dusty environments if necessary.

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Visual observation if carbon brush is not worn out.

Moving Motor

Conduct visual inspection to check variable transformers are all regulating (moving).


Accuracy. Beyond Imagination.

The digitally enhanced Ashley Edison MBB Card ensures pinpoint voltage stabilisation against the most erratic anomalies, allowing you to protect precious uptime, effortlessly. Harnessing ultra precision capabilities to produce some of the tightest output voltage tolerance available in the industry, the Ashley Edison MBB Card delivers ±0.5% voltage accuracy, enabling your load equipment to enjoy optimal voltage supplies, regardless of load change in your electrical system.

Expert Digital Control

Utilising the advantageous measurements of true RMS, the Ashley Edison MBB Card’s reads both perfect, sinusoidal waves, as well as complex, distorted non sinusoidal waves—up to 0.1V accuracy. Coupled with lightning fast response time of 1.5ms, this expert digital control feature equips your load with total voltage protection that is precise, continuous and ultra responsive.

AE Digital Control Display_230v

Universal Presettable Function

The Universal Presettable Function onboard the Ashley Edison MBB Card allows seamless control of your desired output voltage value on all 3 Phases—with just a touch of a button. This multifunctional feature enables each AVR to fully operate with just 1 card, instead of separate cards for each individual phase. Fitted LED Output Voltmeter Display and Alert Indicator better facilitates easy status monitoring while performing maintenance on your AVR.


Microcontroller Unit (MCU)

MicroController Unit (MCU) helps you to deliver high speed and reliable efficiency in the AVR’s operations with less heat generation and reduced power consumption. Used in Supercomputers, Surface Mount Technology (SMT) allows components in the Ashley Edison MBB Card to be aligned closer together, creating a more compact and lightweight end product. Additional safety wire-to-board feature establishes fail-proof connectivity between circuits—so you can work safely on your AVR.