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| Phobos0001:
Hi Everyone, I just found this site today and I'm hoping for some advice for a little project for the workshop here. I do some work on industrial components such as motors, gearboxes, Vector&Frequency drives and the like, and I like to monitor various parameters after I reassemble for no-load bench testing, now I have the usual hand held testing tools like the good ol' multimeter & clampmeter but I'm hoping to do a hardwired setup on the wall. Im hoping to have a display(s) that I can check phase to phase voltage voltage and current draw on each individual phase, any other features are just icing on the cake. This corner of the shop is on it's own breaker, I have a 415V/50Hz (nominally speaking because south Australia :P) power supply, currently I only have a 32A breaker installed but this can handle a 60A continuious draw for running induction motors upto about 30Kw has anyone got some suggestions on some meters, DIN, Panel, it doesnt matter how they mount, I have no space constrictions and I'm not shy about fabrication. My restriction is as with most people, budget. I dont want to be spending six grand on the world's most accurate high sample rate machine. but the idea of these $20-50 dollar meters from ebay or china scare me, this is not exactly a 10A supply from a house we're talking about here. I hope this covers it all, feel free to ask if you guys need more info and thanks in advance for any assistance |
| station240:
Schneider Electric, ABB and others, make things called a "Digital Power Meter" https://au.rs-online.com/web/c/automation-control-gear/panel-meters-components/digital-power-meters/ Of course you still need to buy the separate Current Transformers to suit the meter and your application. Probably cheaper to get some of this stuff from an Electrical Supply shop, or used on ebay. |
| Phobos0001:
Hi Station, sorry for the late reply, it's been a mental week! I've started going through the data sheets for these digital power meters, looks like they will do everything I want and then some. I'm thinking one of these.... https://au.rs-online.com/web/p/digital-power-meters/9145281/ and, if I have done my homework correctly, three of these https://au.rs-online.com/web/p/current-transformers/1718765/ unless I'm missing something else, I should get away with around $300 after I get some cable & terminations. I still have plenty more reading to do so I can make sure everything will work properly before I pull the trigger on a purchase cheers for the help |
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