Electrical Test Equipment Repair

Electrical test equipment sits in an awkward position in most maintenance budgets. It is expensive, it is critical, and it is almost never redundant. A utility substation division, a transformer manufacturer's test bay, an EPC contractor's commissioning team or an independent testing agency typically owns exactly one power factor set, one relay test system and one breaker analyser. When any of them fails, the testing programme it supports stops until the instrument comes back.

The conventional options are unattractive. Sending the unit to the manufacturer usually means exporting it, waiting weeks or months, and paying a foreign-currency invoice. Replacing it means a capital purchase and a procurement cycle measured in quarters. And if the model has been discontinued, the manufacturer may simply decline the job — which leaves an otherwise sound instrument sitting in a store room.

Synchronics Electronics has been repairing industrial electronics at component level from Vadodara, Gujarat since 1994. We are an independent repair company — not an authorised service partner for Doble, OMICRON, Megger or anyone else — and that independence is precisely what lets us take on the work the OEMs will not: end-of-life models, orphaned brands, and instruments whose original spare assemblies stopped being made a decade ago. Our engineers work on the circuit itself, tracing a fault to the specific failed device rather than swapping a module that may no longer exist.

The scope covers the whole of electrical testing. Transformer diagnostics: power factor and tan delta test sets, turns ratio testers, winding resistance meters, tap changer analysers, sweep frequency response analysers and dielectric response instruments. Circuit breaker testing: timing and travel analysers, coil current recorders, micro-ohmmeters and vacuum bottle testers, along with the linear and rotary travel transducers that are so often the real fault. Protection testing: secondary and primary injection relay test sets, amplifiers, IEC 61850 network analysers and their interface boxes. Instrument transformer testing: CT and VT analysers for ratio, saturation, burden and excitation. Insulation testing: megohmmeters and AC/DC hipot sets from benchtop units to high-voltage modular stacks. Partial discharge measurement with its sensors, couplers and calibrators. And dissolved gas analysis monitors and portable gas chromatographs for transformer oil.

What actually fails on these instruments is rarely exotic. Switch-mode power supplies give out under unstable substation supply. LCD panels and backlights die. Membrane keypads stop responding. Thermal printers jam. Battery packs swell. Output amplifier stages blow after a short or an inductive kick. Measurement channels drift or go open after a surge. Travel transducers break where they mount to the breaker mechanism. Every one of those is a routine component-level repair — the instrument's age is largely irrelevant. Where a specific obsolete component genuinely cannot be sourced anywhere, our PCB reverse engineering team redesigns that section of the board to restore the original function.

We are equally clear about our limits, because in this field vagueness costs people money. We hold no OEM authorisation and we do not imply any. We are a repair house, not a NABL-accredited calibration laboratory: we functionally verify repaired instruments against our reference standards and issue a test report, but if your quality system or a statutory audit needs an accredited certificate, arrange calibration at an accredited lab after our repair. For reference-grade sources such as OMICRON CMC test sets we recommend that actively rather than leaving you to work it out. And if we judge an instrument beyond economic repair, we tell you so instead of billing for a doomed attempt.

Diagnosis is free and the quote is fixed before any work starts. Ship from Mumbai, Delhi NCR, Ahmedabad, Chennai, Hyderabad, Bengaluru, Pune, Kolkata, Nagpur, Bhubaneswar, Raipur, Jaipur, Lucknow, Coimbatore or anywhere else in India — see our shipping guide for packing and documentation, which matters for instruments of this value.