Online UPS and isolation transformers for pharma plants
In a GMP environment a power event is not only a downtime cost — it is a deviation, an investigation and potentially a lost batch.
What actually goes wrong
A pharmaceutical site has to prove that conditions were maintained, not just that the plant kept running. A stability chamber that drifted for twenty minutes, an HPLC run interrupted mid-sequence, a lyophiliser that lost vacuum — each generates a deviation report, and the investigation costs more than the power event did. Meanwhile the QC lab’s analysers need a noise floor that most industrial supplies cannot deliver.
What to get right
The decisions on this list are the ones that are expensive to change after the equipment is on site.
Qualification documentation
IQ/OQ protocols and traceable calibration certificates for commissioning instruments. Ask for these at the quotation stage — retrofitting the paperwork later is painful.
Laboratory noise floor
HPLC, GC-MS and spectrophotometers are microvolt-signal instruments. Ultra isolation with over 100 dB attenuation is standard specification.
Environmental chambers
Stability chambers and cold rooms need continuity across the DG start window or the excursion becomes a deviation.
Clean room HVAC
Differential pressure has to be maintained. AHU control supplies belong on the no-break side even when the fan motors do not.
Data integrity
Under 21 CFR Part 11 expectations, servers and instrument workstations losing power mid-write is a data integrity issue, not just an IT one.
Audit-ready maintenance
Preventive maintenance and battery test records get inspected. Our AMC reports are formatted to be handed over directly.
What we supply into this sector
Online UPS
True double-conversion topology from 3 kVA to 200 kVA across three series, with single-phase or three-phase output. Zero transfer time, pure sine output held to ±1%, and up to 96% efficiency. Built and load-tested in Pune.
Isolation Transformer
Galvanic separation between supply and load, with electrostatic shielding that attenuates common-mode noise by 100 dB or better. 1 kVA to 500 kVA.
Servo Voltage Stabilizer
5 kVA to 500 kVA, air or oil cooled, correcting to ±1% output. The right first fix when the MIDC feeder swings all day and the equipment keeps tripping on undervoltage.
Automatic Transfer Switch (ATS)
The supply you are on fails, and the load moves to the one that has not — with nobody at the panel. 10 A to 150 A, single phase and three phase.
Through the life of the machine
Questions we get asked
Anything not covered here, call us — most of it is faster to answer on the phone.
01Do you provide IQ/OQ documentation for pharma installations?
Yes, on request at the quotation stage. Installation and operational qualification protocols, calibration certificates traceable to national standards for the test instruments, and commissioning records in a format that goes into your validation file. It needs to be scoped up front, not added afterwards.
02Which pharma loads should be on UPS rather than DG?
Anything where a fifteen-second break creates a deviation: stability chambers, environmental monitoring, instrument workstations and servers, clean room pressure control, and any process mid-cycle such as a lyophiliser. Utilities and general lighting can sit on the DG side.
03Why does a pharmaceutical plant need clean power beyond a UPS?
Because the record matters as much as the product. Environmental monitoring, chart recorders, HVAC controls and analytical instruments generate the data that supports a batch, and a supply disturbance that interrupts logging can put a batch record in question even where nothing physically went wrong. That is a documentation problem with a commercial cost, and it is usually cheaper to condition the supply than to investigate the deviation.
04What should be on backup in a pharma facility?
Work outward from what cannot be reconstructed. Stability chambers, cold storage, environmental monitoring and the systems that hold the batch record generally come first; general lighting and non-GxP office load generally do not. Clean rooms are their own case because pressure cascade and HVAC recovery take time after an interruption. Your validation team should drive the schedule and we build to it.
05Does equipment used in a validated environment need documentation from us?
Expect to be asked for it, and ask us early. Facilities operating under GxP typically want test records, calibration traceability and change control for equipment that supports validated systems, and retrofitting that paperwork later is far harder than producing it at build. Tell us at enquiry that the unit serves a validated area so the documentation is planned into the job rather than reconstructed.
06How often should backup systems be tested in a regulated facility?
More often than an unregulated one, and with the results written down. A float voltage reading is not a test — a discharge test at rated load is what demonstrates the bank will actually carry the load it is claimed to. Set the interval with your quality function, keep the records, and treat the test report as part of the facility’s evidence rather than as a service note.
We will do the load grading with you
Site survey, load list and a single-line diagram before anything is quoted. That is where the specification is actually decided.