Knowledge5 min read · Sri Tulasi Power Solutions · Hyderabad
“Which kVA stabilizer do I need?” is the most common question we hear. Capacity is not about buying the biggest unit - it is about covering your real load, worst voltage, and a little future growth. Sri Tulasi Power Solutions manufactures servo voltage stabilizers from 1 kVA to 4500 kVA in Hyderabad.
What capacity means in practice
kVA (kilovolt-ampere) tells you how much load the stabilizer can carry continuously. It is related to kW (kilowatt) but not identical - power factor and load type matter. Always share both kVA/kW and motor starting details with your supplier.
Typical capacity bands
Small: roughly 1 kVA to 15 kVA
Homes, small offices, single machines, and retail outlets. Single-phase models are common. Example: dedicated stabilizer for a lift, a lab, or a shop with computers and AC.
Medium: roughly 15 kVA to 200 kVA
Workshops, mid-size factories, hospitals wings, and commercial buildings. Three-phase air-cooled servo stabilizers are typical.
Large: 200 kVA to 4500 kVA
Heavy industry, campuses, and main incomer conditioning. Oil-cooled servo stabilizers are often chosen for continuous duty and high ambient temperature.
How we size on site
- List running loads - not only nameplate, but what runs together
- Add motor starting current; a running kVA figure alone can under-size
- Note lowest and highest voltage you have measured on site
- Plan 15–25% headroom if you will add machines in 2–3 years
- Split feeders if one huge stabilizer is hard to install-two smaller units can be easier to service
Input voltage window matters as much as kVA
Two 100 kVA units are not equal if one cannot correct when your grid drops very low. Sri Tulasi engineers select transformer and tap design for the voltage band you declare. Wrong assumptions here cause “stabilizer installed but problem remains.”
Where Sri Tulasi fits in the range
Our catalogue spans 1 kVA to 4500 kVA with air-cooled and oil-cooled three-phase servos, single-phase units, linear advance models for tighter regulation, and related products (static stabilizers, transformers, APFC) when the site needs more than one function.
Conclusion
Capacity tables help, but they do not replace a site visit and load list. Measure, document, and leave some margin. The right kVA from a manufacturer who can service it nationwide costs less over five years than an under-sized unit that struggles every summer.