Formula One Singapore Grand Prix


Precision Voltage Regulation For High Octane Race Action

Voltage Fluctuation Case Study For Formula One Singapore Grand Prix

In 2008, Formula One first ventured to the Republic for its inaugural $150 million night race event – drawing up to 268,000 spectators to the Marina Bay Street Circuit. 


With no room for error in precision motorsport racing, Singapore GP demands only the highest level of power quality. 


Over 1,600 industrial-strength floodlights are powered by 100,000 metres of cable – snaking its way around the circuit.


To comply with Federation Internationale de l’Automobile (FIA) regulations, the lighting at the track must be 3,000-lux levels (on average), which is around four times brighter than those at a regular sporting stadium.

Photos at the end


The Problem:
Floodlight Flicker On The Race Track

Incoming voltage levels from the grid in Singapore are considered stable even by international standards. But the culprit lies in constant change in current from other loads on the same electrical system. 


This change in current causes inconsistent voltage fluctuation – that is fed to high powered track lightings.


While the incoming voltage still meets national electrical requirements, these voltage values are not optimised for critical applications, in this case – race track lights.


Threading the barriers under these high power floodlights, cars would reach speeds of up to 325km/h.



Taken from a night race simulation with flickering lights.


A night race bathed in pulsating floodlights can be distracting or even nauseating for drivers in non-stop race action (up to 2 hours long). 


Floodlight flicker is unacceptable because it compromises drivers’ safety and performance.


To ensure a successful event, the challenge was to eliminate any form of distraction from overhead floodlight flickers  – regardless of the load change on the same electrical system


Taken from a night race simulation with flickering lights. Such issues could be devastating for drivers.



The Ashley Edison (UK) Solution 

Ashley Edison identified that the following challenges had to be resolved while meeting the client’s requirements: 

  • Client: DZ Engineering SRL (Italian Motorsports System & Sports Lighting Specialist)
  • With 24 Power Distribution Units (PDU) across the race track, voltages had to be stabilised at each and every PDU.
  • In this case, the Voltage fluctuations were an inherent problem – caused by load change.
  • Conventional isolation transformers are based on a fixed calculated value, so they could not solve this inherent problem caused by load change.
  • Total power rating requirements of up to 1,320 KVA.
  • Strict safety requirements that only approve verified vendors.


A Supercharged Team That’s Ready To Go

In 2014, Ashley Edison supplied a custom-built solution for the Singapore Grand Prix – that would eliminate every possibility of floodlight flickering on the race tracks.


The OSES Series of Outdoor Servo-Electronic Automatic Voltage Stabilizers – were installed at each and every one of the 24 Power Distribution Units throughout the entire track. The Ashley Edison team is involved in the installation and commissioning of the setup.



Illuminating The Night Circuit

The OSES Series – Automatic Voltage Stabiliser offers extreme voltage protection for 3 Phase applications that demand highly precise output regulation and ultra-fast response speed. These voltage stabilizers are based on the Servo Electronic Digitally Enhanced Design, which boasts reliability for critical applications.


This specified Automatic Voltage Stabiliser series includes:

  • Servo Electronic Digitally Enhanced Design
  • Stepless Voltage Regulation (± 0.5% output voltage accuracy)
  • Forced-Air Cooling for improved operational efficiency
  • Fast Response Time (<1.5ms)
  • Inbuilt High Overload Capability (10x max current rating for 2 seconds)
  • Independent Phase Balancing & Control: Automatic voltage sensing & precise regulation to ensure individual phase voltages remain stable – regardless of load change or unbalance.
  • Wide input voltage tolerance that compensates low voltage values from 340V, and covers high voltage values up to 460V.
  • Transient Voltage Surge Protection (TVSS) protects critical loads against harmful high energy surges, transients and spikes.
  • Class II SPD – Lightning Surge Protection
  • Endurable Outdoor Enclosure – IP54 (BS / EN 60529) / NEMA 3 
  • AquaStop – Protective PCB coating against moisture ingress

The Complete Solution comprises the following:

  • Automatic Voltage Stabilisers (Model: SES Series)
    • 55 KVA x 24 units



The Results

Through rain or shine, the installation of the Servo Electronic Digitally Enhanced Automatic Voltage Stabilizers delivered constant and stabilized voltages to all critical loads – including Communications, CCTV and Track Lighting.


All 24 units are comprehensively maintained on an annual basis, ready for plug and play – at the annual race event. 


Each year, the Singapore Grand Prix continues to achieve massive success with a bigger turnout than ever before.


As the nation eagerly awaits the reboot of a glorious Formula One Night Race, Ashley Edison is geared up to support the world of Motorsports full speed ahead. 


To learn more on how you can optimise your electrical or lighting systems, drop us an email at [email protected].


For more case studies on how the Petrol, Oil & Gas industry is capitalising on these industry techniques, read about their project here.




Singapore GP
AVR | 55KVA, 24 units
Scroll to Top

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”.

Subtxt LogoAsset 62 RGB

Visual Observation Of Variable Transformer Surface:

Use airbrush for dusty environments if necessary.

Subtxt LogoAsset 72 RGB

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.