Systems
Arranged by the document each one answers, because that is how a British programme arrives at the question. You do not need an AC source; you need to pass G99.
Everything on this page is Intepro’s own engineering. The wider equipment catalogue also covers hardware we supply from other manufacturers, and hardware we only build systems around because its British channel belongs to somebody else. Each page says which it is.
The variable AC test supply G99 Annex A.7.1.2.2 describes, with the absorbed power returned to the grid rather than dissipated.
G99 type verification asks you to step voltage in increments of 0.5% or less, hold past the trip delay, then jump in one step and measure trip time — and to do it repeatedly, across settings, with the module running. That is a duty cycle, not a demonstration. Regeneration is what makes it affordable to run all day: the energy the module pushes back goes to the grid instead of into a load bank and a room full of heat.
400 Hz ground power for airborne equipment test.
Aircraft electrical equipment runs at 400 Hz and a 50 Hz bench cannot pretend otherwise. UK aerospace programmes and their MOD-facing subcontracts need a source that holds the frequency and the waveform while the DUT misbehaves.
General-purpose programmable AC where the requirement is a clean, controllable supply rather than grid emulation.
Most AC test does not need four-quadrant behaviour. It needs an accurate, programmable, repeatable source and a sequencer that will reproduce the same profile in six months when the auditor asks.
The DC side of military land-platform testing — wide input, and transients you cannot produce with a bench supply.
Def Stan 61-005 Part 6 asks for 9 to 36 V operation on nominal 12 V and 24 V platform systems, and for the DIT08.B load dump: a loose battery terminal on a heavily loaded system. You cannot generate that profile by turning a knob. It needs arbitrary transient sequencing and a source that survives producing it.
A turnkey system for testing power supplies and converters at production cadence.
Production test is a throughput problem before it is a measurement problem. The constraint nobody writes into the standard is that the test has to be repeatable at line speed, not merely correct on a bench.
Cycling and characterisation for cells, modules and packs.
The EV Smart Charge Points Regulations 2021 require a technical file containing test reports for charge points sold in Great Britain. Battery and charging test programmes generate exactly those reports, and they have to be defensible when a purchaser asks to see the file.
Reliability and characterisation test for power semiconductors.
British compound-semiconductor work concentrates around a small number of clusters, and reliability test is where a device programme either earns its qualification data or does not.
The software layer that sequences a test and produces the record of it.
A compliance programme is judged on its evidence. The executive is what turns a rack of instruments into a repeatable sequence and a report someone will sign — and hardware-independence matters when an instrument is replaced mid-programme and the report must still be comparable.
Integrated racks where the requirement is beyond a single chassis.
Above a certain power the question stops being which instrument and becomes how the rack is built, cooled, protected and interlocked — and who signs it off.
Environmental stress screening and life test.
Screening is where a defence or aerospace programme finds the failures it would otherwise find in service, and the systems that do it run unattended for weeks.