Distribution transformers, servo voltage stabilizers, and online/offline UPS specified against your incomer, load and quality of supply.
Power conditioning starts at the incomer. We look at the supply you have — voltage band, dips and swells, harmonics and outage pattern — and the loads you need to protect, then specify the transformer, stabilizer and UPS that together hold voltage steady and ride disturbances through.
Transformers, stabilizers and UPS are sourced from established manufacturer lines and sized to your connected load with headroom for growth. The HT and LT switchgear that feeds and protects them is designed and supplied by the same team, so the package arrives coordinated rather than assembled from three separate orders.
Oil-immersed distribution transformers stepping an HT supply down to 415 V for the plant, with off-circuit or on-load tap changing to hold secondary voltage as the HT side drifts.
Dry-type transformers for indoor substations, basements and fire-sensitive areas where oil is not permitted.
Servo-controlled stabilizers correcting a wide input swing to a steady output for a whole plant or a single line, with bypass and protection built in.
Thyristor-based stabilizers where a servo correction is too slow — CNC machines, medical imaging and other step loads that need millisecond response.
True double-conversion UPS that isolates the load from mains entirely, for servers, PLCs, instrumentation and process control.
Line-interactive UPS with AVR for lighter IT and office loads where a few milliseconds of transfer time is acceptable.
SMF/VRLA and lithium battery banks sized to the required backup time, plus screened 1:1 isolation transformers that break earth loops ahead of sensitive electronics.
11 kV vacuum circuit breaker panels, ring main units and LT distribution boards for the substation that houses the transformer.
Grid-tied solar plant monitoring on the ARKANNECT platform — generation, consumption and export metering with alerts, analytics and reporting.
| Oil-type transformers | IS 1180 / IS 2026 |
|---|---|
| Dry-type transformers | IS 11171 |
| Transformer rating | Up to 5 MVA · 11 / 22 / 33 kV class |
| Vector group | Dyn11 standard; others to specification |
| Servo stabilizer | Output regulation ±1%, input 340–480 V (3-phase) |
| UPS topology | VFI-SS-111 online double-conversion to IEC 62040-3 |
| UPS range | 1 kVA single-phase to 200 kVA three-phase |
| Battery | SMF / VRLA or lithium, autonomy sized to the load |
| HT switchgear | IS/IEC 62271 — 12 kV VCB and RMU |
| Quality system | ISO 9001:2015 |
A servo stabilizer corrects a wide, slow voltage swing economically and suits a whole-plant supply. A static (thyristor) stabilizer corrects in milliseconds with no moving parts, which matters for step loads like CNC machines, imaging equipment and lifts. Tell us the input range and the load type and we will specify the right one.
An online (double-conversion) UPS rebuilds the output waveform continuously, so the load never sees a mains disturbance or a transfer break — the right choice for servers, PLCs and process instrumentation. A line-interactive UPS is cheaper and fine for office IT that tolerates a few milliseconds of transfer. Either way we size the battery to the backup time you actually need.
Yes. We supply the 11 / 22 / 33 kV distribution transformer along with the HT VCB or RMU and the LT distribution board that feed and protect it, designed as one coordinated package and commissioned by the same team.
We handle positioning, oil filling and filtration, ratio and insulation-resistance testing, and commissioning under load, then hand over the test reports. AMC and load-bank testing are available for UPS and stabilizers afterwards.
