18 kVA Single Phase Servo Voltage Stabilizer
18 kVA single-phase servo voltage stabilizer (230V ±1%) for luxury homes, villas & commercial setups. Handles up to 11.1 kW concurrent load. 100% copper wound.
Core Features
- Step-less servo motor voltage correction
- Phase-to-phase high & low cut-off
- Over-load and short-circuit protection
- Fast response to voltage fluctuations
Technical Specifications
| Capacity | 18 kVA |
|---|---|
| Phases | Single Phase |
| Cooling | Air & Oil Cooled |
| Input Voltage | 130V – 270V |
| Output Voltage | 230V ±1% |
| Efficiency | > 98% |
| Warranty | 1 Year |
18 kVA Single Phase Stabilizer for Home & Commercial Use
Accurate load planning ensures total electrical reliability. The table below details recommended connected appliances and concurrent running capacity for a complete residential villa or commercial establishment.
Nominal Rating
18 kVA
Single Phase (230V ±1%)
Concurrent Running Load
11,100 Watts
11.1 kW Continuous Capacity
Recommended Application
4–5 BHK
Luxury Villas & Clinics
Full-Home Appliance Sizing Breakdown
Simultaneous continuous operation scenario on an 18 kVA single-phase supply
| Appliance / Machine Category | Typical Specification | Units | Wattage / Unit | Running Load |
|---|---|---|---|---|
| Air Conditioners | 1.5 Ton 5-Star Split AC / Inverter AC | 3 | 1,450 W | 4,350 W |
| Water Heating | 25L Storage Geyser (Peak Hours) | 1 | 2,000 W | 2,000 W |
| Water Pumping | 1.5 HP Submersible Borewell Pump | 1 | 1,200 W | 1,200 W |
| Cooking & Kitchen | Microwave Oven / OTG | 1 | 1,500 W | 1,500 W |
| Refrigeration | 350L Double-Door Inverter Refrigerator | 1 | 350 W | 350 W |
| Laundry | 8 kg Front-Load Washing Machine | 1 | 600 W | 600 W |
| Illumination & Fans | LED Downlights, Lamps & Ceiling Fans | Full House | 600 W | 600 W |
| Entertainment & Electronics | 65" 4K Smart TV, Soundbar, Wi-Fi, Laptops | Combined | 500 W | 500 W |
| Total Concurrent Connected Running Load | 11,100 W (11.1 kW) | |||
Residential Villa / 4–5 BHK Home
Centralized mainline stabilizer installation directly after the utility energy meter. Protects all single-phase home circuits with balanced 230V ±1% power.
- 3x 1.5 Ton Inverter Air Conditioners running simultaneously
- 1x 25L Storage Geyser during peak morning hours
- 1x 1.5 HP Submersible water pump tank replenishment
- Continuous refrigerator, lighting, smart TV, and home automation
Diagnostic Clinic / Boutique Office
Dedicated single-phase regulation for sensitive medical diagnostic equipment, dental chairs, workstations, and climate control.
- 4x 1.5 Ton Inverter Air Conditioners for consultation rooms
- Dental chair compressors / Diagnostic testing machines (2,200 W)
- Computer workstations, network server rack & CCTV system (1,600 W)
- Commercial lighting, refrigeration & reception amenities (1,200 W)
Frequently Asked Questions: 18 kVA Single Phase Stabilizer
Can an 18 kVA single phase servo stabilizer power a complete luxury home or villa?
Yes. An 18 kVA single-phase servo stabilizer is engineered for 4–5 BHK homes, duplexes, and luxury villas. It smoothly supports a total continuous concurrent connected load of up to 11,100 Watts (11.1 kW), allowing you to run 3 to 4 air conditioners, water pumps, refrigerators, geysers, and entertainment systems simultaneously without voltage drop.
What is the recommended continuous running load for an 18 kVA single phase stabilizer?
For continuous, trouble-free operation, the recommended concurrent running load is up to 11,100 Watts (11.1 kW). This load profile keeps operating temperatures low and provides smooth voltage regulation even during sudden compressor and pump motor starts.
What appliances can operate simultaneously on an 18 kVA single phase stabilizer?
A typical full-home setup on an 18 kVA unit includes three 1.5 Ton inverter split ACs (4,350W), one 25L storage geyser (2,000W), a 1.5 HP water pump (1,200W), a microwave oven (1,500W), a double-door refrigerator (350W), a washing machine (600W), plus all LED lights, ceiling fans, and smart televisions (1,100W).
What input voltage range does this 18 kVA stabilizer correct?
The standard model corrects input voltage fluctuations from 130V to 270V AC, maintaining a tightly regulated 230V ±1% single-phase output. Wide-range variants (90V–280V) are also manufactured on request for severe low-voltage rural and suburban areas.
Why choose a single mainline 18 kVA servo stabilizer instead of individual stabilizers?
Installing one centralized 18 kVA servo stabilizer at your main electrical distribution board safeguards all circuits and equipment across the building — including expensive inverter compressors, LED drivers, home automation, and kitchen appliances — with true stepless ±1% precision and high short-circuit tolerance.