Voltage and power levels are high enough that it's awkward to do elsewhere (1500VDC, >50 kW processed, ~1kW dissipated by UUT and at least one of the specified tests will be for an energized/operational unit requiring setup/support on-site).
That's certainly a reasonable rental rate. I'm...
Hi All,
I'm looking to do some testing of power conversion equipment at elevated relative humidity in the near future. Compared to many applications, these systems have higher power dissipation and sizes which are potentially too large for typical environmental chambers. I'm interested in the...
I agree with badservo. I work with inverters and see systems synchronizing to the power grid through isolation transformers where the inverter-facing windings are floating / not ground referenced and there is no neutral connection to the inverter.
You won't find "specific literature that...
What is anticipated SRF? I would guess (with limited context) at those inductance values, it's not particularly high. SRF may depend on tap configurations also.
Should be possible to measure total impedance and sweep frequency with your RLC meter in many cases. SRF will be at maximum...
Forklifts and more general handling issues are definitely frequent - plenty of incidents along those lines. I'v used shock, tilt/tip, and maximum temperature indicating stickers in the past to monitor some shipping stresses. Those are generally pretty cost effective for more expensive items...
I was recently told of an electronics shipment which had excessive failures in the filed which were later attributed to pesticide contamination when passing through customs inspections. Similarly, I've had some recent discussions about the possible impacts on x-ray's impacting electronics.
1...
I just wanted to thank everyone for the replies to date- all useful perspectives. I'm currently working on getting a draft of Y14.5-2009 to see what that turns up.
Hello All,
I'm hoping for some input on flatness specifications for extruded heatsinks (typically with a machined mounting surface) for electronics applications. Module vendors will recommended flatness over a length of 100µm (e.g...
NWL (nwl.com) has a line of high-voltage switching DC supplies which includes a high-frequency inverter stage. They could probably provide a solution.
What is the application?
