Three Phase Oil-Cooled Servo Voltage Stabilizer
“Beta Power Controls LLP, Coimbatore, is a leading ISO 9001:2015 certified manufacturer of power conditioning solutions. Since 2007, we have specialized in Servo Voltage Stabilizers, Isolation Transformers, Static Stabilizers, Phase Converters, and Distribution Transformers. Recognized among the trusted three phase oil cooled servo voltage stabilizer manufacturers in India, we bring over 17 years of industry expertise. Our products are relied upon across India, the Middle East, Europe, Africa, and Asia for delivering efficient, reliable, and durable stabilizers
For high-capacity loads and continuous heavy-duty operations, oil-cooled stabilizers provide superior thermal management, durability, and long operational life. They are widely used in industrial plants, hospitals, data centers, and commercial complexes where uninterrupted stable voltage is crucial.
Product Details
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Features
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Specification
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Capacity Range
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3 kVA – 2000 kVA (Oil-Cooled)
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Input Voltage
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295V – 465V / 340V – 480V (custom ranges available)
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Output Voltage
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380V / 400V / 415V ±1% (adjustable)
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Efficiency
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Up to 98% (as per IS standards)
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Connections
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3 Phase + Neutral + Ground
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Frequency
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50/60 Hz
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Correction Speed
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20V/sec – 110V/sec (as required)
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Cooling System
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Oil-Cooled (with natural or forced circulation)
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Duty Cycle
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Continuous, 24x7
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Waveform Distortion
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Nil
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Response Time
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< 20 milliseconds
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Noise Level
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< 65 dB (at 1 meter)
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Standards Compliance
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IS:9815 & ISO 9001:2015
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Quality & Testing
- Type-Tested as per IS:9815 standards
- 100% routine testing before dispatch
- Optional third-party certifications (SGS, SASO, INTEK) available
- Warranty: 2 Years (Oil-Cooled Models)
How Does a Single Phase Servo Voltage Stabilizer Work?
- Voltage Sensing Circuit – Detects fluctuations in input voltage in real time.
- Servo Motor & Variac – Adjusts the voltage by varying the transformer windings.
- Buck-Boost Transformer – Delivers precise and stable output.
- Microprocessor Controller – Ensures ±1% output voltage accuracy.
- Protection Mechanisms – Includes overload, short circuit, surge, and neutral trip protections.
Protection
- Surge & Spike Protection
- Low / High Voltage Cut-Off with Alarm
- Overload Protection
- Short Circuit Protection (MCB/MCCB/ACP)
- Neutral Trip Protection
- Reverse Phase Protection & Auto-Correction
Types of Single Phase Servo Voltage Stabilizer
The 300kVA Oil-Cooled Servo Voltage Stabilizer is engineered for heavy-duty industrial, commercial, and institutional applications where uninterrupted power and precise voltage regulation are critical.
The 400kVA Oil-Cooled Servo Voltage Stabilizer is a heavy-duty power solution for industrial, healthcare and institutional that demand continuous, stable and precise voltage supply.
The 500kVA Oil-Cooled Servo Stabilizer is a high-capacity, heavy-duty stabilizer designed for large commercial complexes that require uninterrupted and stable voltage regulation.
The 750kVA Oil-Cooled Servo Voltage is a high-capacity power conditioning system designed for IT parks and institutions that demand stable and precise voltage regulation.
The 25kVA Oil-Cooled Servo Voltage Stabilizer is designed to provide stable and regulated output voltage for small to medium-scale industries, commercial facilities, and sensitive equipment.
The 15kVA Oil-Cooled Servo Voltage Stabilizer is designed to provide stable and regulated voltage for residential, commercial, and small-scale industrial applications.
The 3kVA Oil-Cooled Servo Stabilizer is a compact yet powerful that provides precise voltage regulation for residential, commercial and small-scale industrial applications.
The 100kVA Oil-Cooled Servo Stabilizer is a robust and high-performance engineered for industrial, commercial applications where a reliable and precise voltage supply is critical.
The 75kVA Oil-Cooled Servo Stabilizer is a high-performance power conditioning system designed to deliver stable and regulated voltage for medium-scale industries and infrastructure projects.
The 125kVA Oil-Cooled Servo Voltage Stabilizer is a high-capacity, heavy-duty stabilizer designed to deliver stable and regulated voltage supply for industrial, commercial, and healthcare applications.
High-performance 150kVA oil-cooled servo stabilizer designed for precise voltage regulation and electrical equipment.Ensures stable power supply, reduces voltage fluctuations.
Compact 12kVA oil-cooled servo stabilizer offering accurate voltage regulation for small to medium electrical loads.Provides reliable power stability, protecting sensitive equipmen.
Reliable 60kVA oil-cooled servo stabilizer ensuring precise voltage regulation for medium to large electrical loads.Protects sensitive equipment from voltage fluctuations and extending lifespan.
175kVA oil-cooled servo Voltage stabilizer offering precise voltage regulation for small and large loads, ensuring stable power, equipment protection and minimizes voltage fluctuations.
Robust 200kVA oil-cooled servo stabilizer delivering accurate voltage regulation for heavy electrical loads.Protects critical equipment from voltage fluctuations.
Efficient 22.5kVA oil-cooled servo stabilizer providing precise voltage regulation for medium electrical loads.Ensures stable power supply and safeguards sensitive equipment.
Compact 30kVA oil-cooled servo stabilizer delivering accurate voltage regulation for medium electrical loads.Ensures stable power supply and protects sensitive equipment.
Heavy-duty 1000kVA oil-cooled servo stabilizer providing precise voltage regulation for very large electrical loads.Ensures stable power, safeguards critical equipment.
Compact 9kVA oil-cooled servo Voltage stabilizer delivering precise voltage regulation for small electrical loads.Ensuring stable and reliable power supply.
Beta Power Controls in India?
17+ Years of Expertise
Industry Leadership & Innovation
Global Quality Certifications
ISO 9001:2015 compliant
Customization
Voltage ranges and models tailored to client needs
High Efficiency
98% energy efficiency, reduces power loss
Global Export Network
Strong presence in Middle East, Europe, Africa & Asia
After-Sales Support
Installation, service, and technical assistance
How to Order from Beta Power Controls?
Frequently Asked Questions
It is a high-capacity voltage regulation system designed for three-phase power supply. Using a servo motor-driven variac (auto transformer) and a buck-boost transformer, it ensures precise and stable output voltage. The oil cooling system efficiently manages heat, making it ideal for heavy-duty, continuous industrial applications.
Our Three Phase Oil-Cooled models are available from 3 kVA up to 2000 kVA (customized ranges available as per requirement).
- Input Voltage Range: 295V – 465V / 340V – 480V (other ranges on request)
- Output Voltage: 380V / 400V / 415V ±1% (adjustable)
Oil-cooled stabilizers use high-grade insulating oil for cooling and insulation. Depending on load conditions, they can be equipped with natural or forced oil circulation systems.
All stabilizers are tested as per IS:9815 & ISO 9001:2015 standards. Optional third-party certifications such as SGS, SASO, and INTEK can be provided on request.
Oil-Cooled Models: 2 Years Standard Warranty