This is weird (huge spike)

[NSS]

Just noticed this today. Car not even plugged in to Zappi. Any ideas?

 

[-rick-]

Does the Zappi still work?

 

Either something went pop inside it or it's just mometary glitch in the data (maybe noise pickup)?

[NSS]

8 minutes ago, -rick- said:

Does the Zappi still work?

 

Either something went pop inside it or it's just mometary glitch in the data (maybe noise pickup)?

Not home at the moment, but will check when I get back.

 

Have refreshed the data but it still shows, and would it use 2.8kWh if something went pop?

[-rick-]

32 minutes ago, NSS said:

Have refreshed the data but it still shows, and would it use 2.8kWh if something went pop?

 

Wasn't sure over what time period that was. If it's just for the period shown on screen then does seem high. A component short-circuiting will draw a very high current for a very short period of time (equally true for a noise spike). Maybe the sample rate of the monitor is only a handful of readings per second. In which case a huge but very short spike might appear to use more energy than it did.

 

Edit: quick maths: To produce a reading of 2.8kWh for a recorded spike of 1 second you'd need to measure a draw of ~10kW or about 42A. A brief short circuit could be much more than that.

 

Edited 2 hours ago by -rick-

[SteamyTea]

A stuck fridge or freezer compre4ssor might use that much, but should trip out.

 

My energy monitor had the battery fail, just before it did that, it was showing 1000 times the usage

[NSS]

Just arrived home. Zappi appears fine (can't plug in at present as caravan in the way). Nothing has tripped on the the consumer panel. All seems fine 🤔

[-rick-]

Probably just noise then. If the charger still works and there's no smell of electronics in the garage then don't worry about it.