High-Precision Servo Stabilizers
ServoKai System is a leading manufacturer of servo voltage stabilizers in Delhi NCR. We engineer power solutions that guarantee ±1% voltage accuracy.
Built for Uncompromising Reliability
Voltage fluctuations are the hidden killer of modern electronics and industrial motors. A sudden surge or deep sag can fry motherboards, reduce motor lifespan, and cause unexplained system reboots.
Our Servo Stabilizers use a micro-controller based servo mechanism to provide stepless voltage correction. Whether you need a 10 KVA single-phase unit for an office or a 2000 KVA three-phase system for a factory, we manufacture stabilizers that meet strict ISO 9001:2015 standards.
- Stepless, smooth voltage correction
- Exceptional ±1% output accuracy
- Zero waveform distortion
- Custom voltage ranges (e.g. 170V-280V, 140V-280V)
Servo vs. Traditional Stabilizers
Precision
Servo provides ±1% accuracy. Relays only provide ±9%.
Correction Method
Servo uses a smooth motor. Relays switch abruptly, causing flickers.
Capacity
Servo scales up to 2000+ KVA. Relays are limited to small loads.
Explore Our Servo Stabilizers
Available in Single Phase (Air & Oil cooled) and Three Phase variants.



3 phase
3 Phase Oil Cooled Servo Stabilizer — 100 KVA
Heavy-duty 100 KVA oil-cooled servo stabilizer for continuous industrial operation with high load currents.


3 phase
3 Phase Oil Cooled Servo Stabilizer — 600 KVA
600 KVA oil-cooled servo stabilizer engineered for large-scale industrial plants and heavy machinery.


3 phase
3 Phase Air Cooled Servo Stabilizer — 40 KVA
Compact 40 KVA 3-phase stabilizer with forced air cooling — ideal for factories and commercial installations.


single phase
Single Phase Air Cooled Servo Stabilizer — 10 KVA
Compact 10 KVA single-phase stabilizer for homes, offices, clinics, and small commercial loads.

single phase
Single Phase Air Cooled Servo Stabilizer — 20 KVA
20 KVA single-phase air-cooled stabilizer for medium commercial loads and sensitive industrial equipment.

single phase
Single Phase Oil Cooled Servo Stabilizer — 20 KVA
Heavy-duty oil-cooled single-phase stabilizer for longer runtime, frequent fluctuations and higher loads.
Trusted Across Every Sector
From hospitals that can't afford a flicker, to factories running 24/7 — ServoKai system protect what matters most.
Manufacturing
CNC, laser, moulding & production lines
Healthcare
Hospitals, X-ray, MRI & medical labs
IT & Data Centres
Servers, networking & telecom infra
Commercial
Offices, malls, AC & lifts
Research & Labs
Precision instruments & clean power
Telecom & Broadcasting
Towers, amplifiers & signal systems
Cold Storage
Refrigeration & temperature control
Textile & Chemical
Processing plants & heavy industry
Frequently Asked Questions
How does a Servo Stabilizer work?
A servo stabilizer uses a servo motor, an auto-transformer (variac), and a buck-boost transformer. The motor is controlled by a microprocessor. When voltage fluctuates, the motor precisely adjusts the variac to regulate the output voltage, ensuring a constant 230V (Single Phase) or 415V (3 Phase) output.
Why choose Servo over a standard Relay Stabilizer?
Relay stabilizers adjust voltage in steps, causing a slight flicker and less accurate output (usually ±9%). Servo stabilizers provide stepless, smooth correction with extremely high precision (±1%), which is crucial for sensitive electronics, CNC machines, and medical equipment.
What is the lifespan of a Servo Stabilizer?
With proper maintenance, a high-quality ServoKai stabilizer can easily last 15 to 20 years. We use premium copper/aluminum winding and heavy-duty carbon brushes designed for long-term durability.
Do you provide installation and AMC?
Yes, we provide pan-India delivery, installation guidance, and Annual Maintenance Contracts (AMC) to ensure your stabilizer runs perfectly year after year.
Need a Reliable Voltage Stabilization Solution?
Get factory-direct pricing with expert consultation from ServoKai System engineers. Quick response. Custom solutions. 1-year guarantee.

