Servo Electronic Design

Automatic Voltage Regulators (AVR)

New And Improved, Now Digitally Enhanced

DELIVERING STABILITY,
ENSURING RELIABILITY

The core concept behind the servo electronic automatic voltage stabiliser holds the precision of a marksman, and the durability of a workhorse.

Achieve Peace Of Mind With Absolute Voltage Protection

Ultra accurate ±0.5% voltage regulation, paired with independent phase control and highly defensive input voltage tolerance of up to ±40% against dreaded voltage anomalies — all within an incredibly sturdy enclosure.

 

And that commitment continues with with the all-new digitally enhanced SES series of automatic voltage stabilisers.

 

Dependably designed to deliver such optimal voltage levels with maximum energy-saving efficiency, this powerhouse guarantees you seamless operations for all industrial and commercial applications.

Up to 2,500KVA
Extra Wide Input Voltage Tolerance up to ±40%
Ultra Precise Output Voltage Accuracy
(up to ±0.5%)
INDEPENDENT PHASE VOLTAGE CONTROL
MAINTAINS EXTRA STABLE VOLTAGE, FROM NO-LOAD TO FULL-LOAD

LOOK FOR THE ONE
THAT LOOKS AFTER YOUR BUSINESS

While ensuring total voltage protection for your operations, the servo electronic automatic voltage stabiliser offers you a complete peace of mind with more uptime, eliminating excessive and unnecessary maintenance of your facility or equipment.

Products

Servo Electronic design

Select:

Single Phase

Automatic Voltage Stabiliser

SERVO ELECTRONIC DIGITALLY ENHANCED SES SERIES​

SES Series​

Technical Specifications:
PhaseSingle Phase, 2 Wire (Live, Earth)
Capacity1 to 100 KVA
Input Circuit BreakerYes
Input Voltage

Low Voltage Model: 100, 110, 120 V

High Voltage Model: 220, 230, 240 V

 

To specify depending on your electrical configuration

Input Voltage Tolerance

±15%, ±20%, ±25%, ±30%, ±35%, ±40%,

 

To specify depending on the severity of the input voltage fluctuation

Set Output Voltage

Low Voltage Model: 100, 110, 120 V

High Voltage Model: 220, 230, 240 V

 

To specify depending on your electrical configuration

Output Voltage AccuracyStable ±1% of set output voltage, regardless of load change
Response Time< 1.5 ms
Correction Time10% supply variation corrected to within 2.5% in 0.6 seconds
Power FactorAny lagging to 0.95 leading
Frequency47 to 65 Hz
Efficiency98%
Three Phase

Automatic Voltage Stabiliser

SERVO ELECTRONIC DIGITALLY ENHANCED SES SERIES​

SESL Series​

Technical Specifications:
Phase

Three Phase, 3 or 4 Wire (Earth)

 

To specify depending on your electrical configuration

Capacity200 to 1,500 KVA
Input Circuit BreakerNo
Input Voltage

Low Voltage Model: 220, 230, 240 V

High Voltage Model: 380, 400, 415 V

 

To specify depending on your electrical configuration

Input Voltage Tolerance

±10%, ±15%, ±20%, ±25%, ±30%, ±35%, ±40%,

 

To specify depending on the severity of the input voltage fluctuation

Set Output Voltage

Low Voltage Model: 220, 230, 240 V

High Voltage Model: 380, 400, 415 V

 

To specify depending on your electrical configuration

Output Voltage AccuracyStable ±0.5% of set output voltage, regardless of load change
Response Time< 1.5 ms
Correction Time10% supply variation corrected to within 2.5% in 0.6 seconds
Power FactorAny lagging to 0.95 leading
Frequency47 to 65 Hz
Efficiency98%
Three Phase

Automatic Voltage Stabiliser

SERVO ELECTRONIC DIGITALLY ENHANCED SES SERIES​

SES Series​

Technical Specifications:
Phase

Three Phase, 3 or 4 Wire (Earth)

 

To specify depending on your electrical configuration

Capacity6 to 600 KVA
Input Circuit BreakerYes
Input Voltage

Low Voltage Model: 220, 230, 240 V

High Voltage Model: 380, 400, 415 V

 

To specify depending on your electrical configuration

Input Voltage Tolerance

±15%, ±20%, ±25%, ±30%, ±35%, ±40%,

 

To specify depending on the severity of the input voltage fluctuation

Set Output Voltage

Low Voltage Model: 220, 230, 240 V

High Voltage Model: 380, 400, 415 V

 

To specify depending on your electrical configuration

Output Voltage AccuracyStable ±0.5% of set output voltage, regardless of load change
Response Time< 1.5 ms
Correction Time10% supply variation corrected to within 2.5% in 0.6 seconds
Power FactorAny lagging to 0.95 leading
Frequency47 to 65 Hz
Efficiency98%

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Benefits

Unlock the key to achieving
Cost-efficient, Time-Saving Operations

Here are 4 key factors how Servo Electronic Automatic Voltage Stabilisers optimise your operations:

Eliminating Emergency Equipment Breakdowns

Passive Savings On Your Operations

Make Your Investment Worth Every Cent

Extra Protection For Your Electrical Systems

Reliably Enduring The Harshest Environments

Ideal In Sub-zero Temperatures Of Wintry Mountains

Built to withstand environments from -15°C, up to 1,000m altitude.

Through The Scorching Heat Of The Arabian Deserts

Fully operational in high temperatures up to 60°C.

The humid Tropicals And Everything In Between

Suitable for indoor tropical use 95% RH (non-condensing).

Ashley Edison's 3 Phase Automatic Voltage Stabilsers ensures

individual phase voltages remain stable,
from no-load to full-load.

Features

Step-Less Voltage REgulation

Automatic & Continuous Voltage Stabilisation – Ashley Edison Servo Electronic Design Mains Voltage Stabiliser converts erratic fluctuating voltage on the incoming, into a smooth and optimal output supply—delivered straight to your load equipment. Safeguarding your operations from painful downtime, permanently.

INDEPENDENT PHASE CONTROL

Independent Phase Balancing And Regulation – Individual Voltage Sensing Modules separately control each line on a 3 Phase circuit—seamlessly and autonomously. Ensuring all forms of voltage anomaly is stabilised to your required output voltage value, no matter the difference in voltage levels on each phase.

UNPARALLELED INBUILT PROTECTION

Additional Preventive Defense – Fitted inbuilt protective features include Input Circuit Breakers (Type B MCCB), Over/Low Voltage Protection, Phase Failure Protection, Transient Voltage Surge Suppressors, Lightning Surge Arrestors (for outdoor units).

 

Optional protective features: Output Circuit Breakers, Manual Maintenance Bypass Switch, Drip-Proof Cowl for Ingress Protection, AquaStop Protective Coating against dampness and moisture, Shielded Isolation Transformer against common and transverse mode electrical noise.

All models come with 3-years complete warranty on all parts

COMPLIANT WITH INTERNATIONAL STANDARDS
ISO 9001:2015 | CE Mark | BS EN 55022 | BS EN 61000
BS EN 60529 | CE MARKED

Trusted by Clients all over the world

FAQ

If you’re wondering how simple voltage regulation can overcome huge voltage anomalies, you’re not alone. There is a sea of information online explaining how voltage stabilisers work. However, not many are comprehensive enough to explain the in’s and out’s of what exactly goes on within these innovative works of wonders.

 

For servo electronic design voltage stabilisers: Any form of erratic or unstable input voltage is immediately detected by microprocessors in the voltage stabiliser. This triggers the servo motor driver to instantly activate and move the servo motor’s shaft across the windings of a variable transformer – AUTOMATICALLY adjusting the output voltage value to your desired prescribed limit. The regulated voltage is then supplied through the secondary of the Buck-Boost Transformer, and then fed to the machinery or appliances in use.

 

For the full in-depth literature with quantitative and qualitative research explaining all the how’s and why’s, download our free 22-page PDF white paper to learn more.

 

Download Complimentary White Paper >>

For Servo Electronic Voltage Stabilisers, maintenance is absolutely minimal. Quarterly checks on metering displays and yearly ocular (visual) inspections are strongly encouraged. Any electrically trained technician is more than capable of carrying out these simple maintenance tasks – with ease.

 

For a virtually maintenance-free solution, explore our Extra Robust Magnetic Induction design that’s engineered for maximum uptime protection.

 

Discover Maintenance-Free Series >>

Yes. Ashley Edison is an ISO 9001:2015 Certified organisation.

 

With a wealth of manufacturing experience acquired over 40 years, Ashley Edison powers on, and harnesses its industry-certified expertise to craft world-class products to perfection.

 

Spread across three offices worldwide, we operate as a single integrated powerhouse—fully outfitted with full-stack in-house product design, prototyping, and manufacturing teams to meet your unique needs.

 

Read Our Design Philosophy >>

Equipment failures can be frustratingly painful to deal with. Severe voltage drops and heavy voltage fluctuations from the mains – are some of the culprits crippling your uptime.

 

The fastest and most cost-efficient method (also adopted by Grid Operators and MNCs) is to incorporate a dependable voltage regulating solution into your electrical system.

 

This facility-saving quick fix eliminates all forms of harmful voltage irregularities, drops and fluctuations – regardless of load change in your electrical system.

 

An optimally stabilised output voltage supply provides robust protection for your high value equipment.

 

What you’re looking for is an answer that guarantees improved operational efficiency, reliability, prolonged healthy lifespan and ultimately, a solution that safeguards your precious uptime – permanently.

 

Need help picking the perfect voltage regulating solution? Speak to us today! Our consultants are happy to assist you with your challenges – every step of the way.

 

Speak To Our Consultants >>

When it comes to mission-critical applications and high value equipment, an uninterruptible power supply (UPS) is used for backup power when your regular power source fails.

 

If you’re anything like us, you’d believe that leaving things to chance is not practised in the electrical engineering community.

 

Which is why we too, believe in redundancy systems.

 

Supplying voltage stabilisers to mission-critical applications like datacenter and IT system infrastructures has become a crucial part of uptime protection in the industry.

 

Should the UPS require any form of shut down or scheduled maintenance, you can be assured that your voltage stabiliser continues to deliver clean, stable voltage supplies to your load, all day, everyday.

 

View All Voltage Solutions >>

There are 4 different types of voltage stabiliser designed for commercial and industrial applications: Servo Electronic, Magnetic Induction, Static Tap Switching, Solid State (Ferroresonant).

 

Each design has its pro’s and con’s. While Servo Electronic based Voltage Stabilisers have mainly dominated the market, the ever growing demand for uncompromising reliability and maximum durability in voltage protection has caused an unsurprising shift towards the Magnetic Induction design.

 

Static tap switching design (thyristor based) is favoured by non critical projects that are desperately constrained by budgets. When technical specifications are written under non stringent requirements (e.g. voltage output of ±10%), cheaper prices may be preferred over quality.

 

Solid State Design (ferroresonant) is highly dependable. With no moving parts, the ferroresonant voltage stabiliser is not subject to mechanical wear and tear. Due to its nature, it is typically suitable for single phase applications.

 

To learn more on which design is ideal for your application, read our comprehensive blog article (11min read) to find out more.

 

Otherwise, drop us an email at sales@ashleyedison.com and our consultants will be in touch with you within 24hrs.

 

Speak To Our Consultants >>

Ashley Edison Automatic Voltage Stabilisers are designed as “Plug-And-Forget” voltage protection solutions.

 

Once commissioned, the incoming voltage is INSTANTLY regulated to your desired set output voltage values within 1.5ms.

 

Voltage levels are automatically and constantly maintained during the day when loading is high, and throughout the night when loading is low – giving you a peace of mind and unstoppable confidence that your equipment are well taken care of, with no guesswork needed.

 

 

Explore Products >>

At Ashley Edison Global, we believe in engineering solutions that are built to last. By championing the need to optimise rather than replace, we safeguard the maintenance budgets of our clients by preventing unnecessary expenditure on replacements or repairs. No detail is too small when product design quality is concerned.

 

In our manufacturing process, every product is closely inspected as they pass through assembly lines with an intense focus on durability and maintainability—while paying close attention to safety as a top priority.

 

With over 40 years of research and development, Ashley Edison products have been put through the test of time, enabling us to break boundaries by greatly improving MTBF and total dependability. This results in the perfect marriage of performance and reliability.

 

Our industrial and commercial clients from over 104 countries around the world have achieved a constant stable and clean power supply after successful installation of our products, and there are no reported operational issues to date since 2012.

 

Despite unfavourable weather conditions, your AVR should last you a lifetime – if you take good care of it.

 

Being said, our philosophy of building lasting voltage solutions are proven to stand the test of time, through this proven case study below:

Read Case Studies >>

We design intuitive products with simplicity and ease-of-use in mind, eliminating the chore of complex disassembly and reassembly—especially in circumstances that merely require the replacing of minor components.

 

By making regular inspections a straightforward and simple process, we ensure that our products run smoothly throughout their expected healthy lifespan, with absolute certainty and maintainability.

 

Every Ashley Edison Automatic Voltage Stabiliser comes inclusive of 3-Year full warranty on all parts.

 

ENQUIRE NOW

Not sure which equipment type suits your operations?

Or are you looking for a quote?

 

No worries!

 

Drop us an enquiry and we’ll get back to within 24 hours and discover how we can optimise your system.

ASHLEY Edison International LTD

OUR PROJECTS

RADIO TELEVISYEN MALAYSIA (RTM) & PT INDOSAT TBK
Banyan Tree – Seychelles
Singapore Power (SP Group) – East West Transmission Cable Tunnel Project
coca cola
Coca-Cola – Saudi Arabia
mains voltage stabiliser
Embassy
U.S. Embassy – Papua New Guinea
ashley edison's solution
TÜV SÜD
ashley edison project
British Petroleum – Georgia
ARMY
Military Grade Voltage Protection
Stopping voltage fluctuations
Humber Bridge – U.K.
ABB – Latvia
mains voltage stabiliser
DEPARTMENT OF STATE
U.S. Embassy – Pakistan
Total – Angola

Technical Features

Input Circuit Breaker

All SES Series Mains Voltage Stabilisers are equipped with Overcurrent Protection fitted as standard.

Bypass Control Switch

Manual Electronic Control Bypass Facility for maintenance of Mains Voltage Stabiliser.

Inbuilt High Overload Capability

Suitable for loads with an inherent initial high current draw on start-up.

Transient Voltage Surge Suppression

Protects electrical and electronic loads against harmful high-energy surges, transients and voltage spikes.

Phase Failure Protection

Loading Protection in the event of Phase Failure. 

Soft Start-Up Load Protection

Protection of the load from momentary overvoltage situations on startup.

Over / Low Voltage Protection

Ability to automatically shut down the Mains Voltage Stabiliser in the event of the input supply voltage going outside the input voltage window.

Lightning Surge Arrestors

Protection against extremely high voltage surges and transients caused by lightning strikes on the supply line. (Standard for outdoor models)

volt-free remote monitoring contacts

With RS-485 interface or Mimic Panel option.

cloud-based data system analysis

Real-time wireless applications for Measurement and Verification of energy and resource consumption.

COMPLIANT WITH INTERNATIONAL STANDARDS
ISO 9001:2015 | CE Mark | BS EN 55022 | BS EN 61000
BS EN 60529 | CE MARKED
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