Changover relay - potential problems with Power meters

[Stipe07]

Hello everyone!

I couldn't find anything about this, but sorry if I am repeating someones question.

I am designing Energy metering system in Main Distribution for Data center.
Needed auxiliary power supply will feed power meters and motors for circuit breakers.

Potential problem that might occur is that Power meters (Schenider PM82401 and PM5341) will go to reboot because of changeover relay (Schenider but not jet defined) that will select one of three possible 230VAC sources (trafo, gen and UPS).

Power meters are compatible with following but I don't have these to go through:
Voltage dips and interruptions immunity test conforming to IEC 61000-4-11
Electrical fast transient/burst immunity test conforming to IEC 61000-4-4
Surge immunity test conforming to IEC 61000-4-5

Can someone advise me on this?
Will power meters reboot or changeover relays are fast enough that PM won't notice switching?

Thank you!

 

[thermionic1]

Supply control power to the meters via station batteries and problem is solved.

 

[Stipe07]

Supply control power to the meters via station batteries and problem is solved.

Yes but this is AC supply so after batteries I would need additional converter to get AC and that would be complication of already complicated system.
I got info that these PMs have run-through time of 100ms.

 

[3DDave]

The people to ask are the Schneider tech support engineers.

Schneider also makes DC powered meters, such as METSEPM8210 "Same as the PM8240, except with low-voltage DC control power"

They may be able to calibrate METSEPM8210 to meet MID requirements for you.

 

[thermionic1]

Per the PM 8000 Series data sheet:
Supply voltage 90...415 V AC 45...65 Hz +/- 10 %
110...415 V DC +/- 10 %

else get a small ups.