Static Electronic

Voltage Stabilisers & Power Conditioners
Single & Three Phase
0.5 to 3125 kVA

Static Voltage Stabilisers

ESR Series Static Voltage Stabilisers are micro-processor based electronic digital regulators and represent the latest in voltage stabiliser design evolution.

Based on the extremely well proven Buck-Boost design topology which underlines our Servo Electronic Stabilisers, ESR Static Voltage Regulators utilize SCRs (Silicon Controlled Rectifiers), as opposed to Variable Transformers, to control the voltage on the primary winding to deliver a highly stable output voltage.

Compatible with all load types and offering independent phase control, they deliver ultra-fast response times in correcting under/over voltages, sags, and surges – making them ideal for highly sensitive/mission-critical loads and applications.

Solid-state in basic design, with the only moving parts being fans used to force cool the stabilise, ESR Static Voltage Stabilizers deliver highly reliable and virtually maintenance-free voltage stabilisation and protection against the vagaries of the utility main supply.

With a high inbuilt fault clearing capability, the inclusion as standard of an automatic electronic bypass facility ensures that in the event of a problem, the power to the load equipment is always maintained.

1 to 3125 kVA

Static Voltage Stabilisers available

Single Phase
2 Wire

Low Cost, virtually maintenance-free, Voltage Stabilisation and Power Conditioning for the Home and Small Business Office

Alternative permissible input voltage window models available to accommodate even the worst of Power Environments

Single Phase
2 Wire

3 to 150 kVA

Ideal for most General Commercial & Industrial Applications where a virtually maintenance-free solution is required

Also available in IP54 / NEMA 3 Style Enclosures (-IP54 Option) and as Power Line Conditioners (-PC Option)

Three Phase
3 or 4 Wire

6 to 400 kVA

Highly efficient microprocessor control. Ideal for today’s modern General Commercial & Industrial Applications

Also available in IP54 / NEMA 3 Style Enclosures (-IP54 Option) and as Power Line Conditioners (-PC Option)

Three Phase
3 or 4 Wire

450 to 3125 kVA

Specifically configured for the needs of larger sites.

Also available in IP54 / NEMA 3 Style Enclosures (-IP54 Option) and as Power Line Conditioners (-PC Option)

Static Voltage Stabilisers FAQ's

Here you’ll find answers to some of the more frequently asked questions when looking for a Static Voltage Stabiliser.

We also have a dedicated FAQ page where we try to answer other questions. Visit the FAQ page.

If you have a question that you can’t find the answer to, please let us know by using the Contact Us page.

A Static Digital Voltage Stabilizer, without any moving parts (other than cooling fans), monitors the incoming supply. Should the incoming voltage rise or drop, the Stabilizer will automatically control the output to ensure the voltage reaching the load equipment always remains constant at the requisite voltage.

Static Digital Voltage Stabilizers typically utilize the same well-proven Buck-Boost design topology as traditional Servo Electronic-based Voltage Stabilizers. By using SCRs (Silicon Controlled Rectifiers) to choose the appropriate voltage from the voltage supply transformer and applying it to the primary winding of the Buck/Boost transformer, the output voltage of the Stabilizer is regulated.

Solid-state in basic design, with the only moving parts being fans used to force cool the stabilize, Static Digital Voltage Stabilizers deliver highly reliable and virtually maintenance-free voltage stabilization and protection against the vagaries of the utility mains supply.

With a Static Digital Voltage Stabiliser, the Stabilizer voltage’s output accuracy usually depends on the Stabilizer’s required permissible input voltage swing and the number of different voltage taps available on the voltage supply transformer. Typically, the output voltage is regulated to an accuracy of 1% and 3 to 5% for larger swing models.  Such levels are usually more than acceptable for today’s modern loads.