Jump to content
ELFORUM - Forumul Electronistilor
Sign in to follow this  
Depanatoru

Schema Wattmetru

Recommended Posts

Stiti vreo schema buna de wattmetru ? Am cautat pe net dar nu prea am gasit nimic. Vreau sa masor cat consuma diverse aparate din reteaua de 220V , dar nu numai.

Share this post


Link to post
Share on other sites

Masurarea puterii (active) nu e chiar asa de banala ptr ca fie forma curentului nu este sinusoidala, fie nu este in faza cu tensiunea. De aceea, cred ca nu intamplator nu prea exista "schema buna de wattmetru".

Totusi, uite doua linkuri ptr documantare: o nota de aplicatie care iti da o idee despre cum s-ar face si un aparat industrial existent.

http://focus.ti.com/lit/an/slaa203b/slaa203b.pdf

http://www.p3international.com/products ... 00-CE.html

 

Cirip

Share this post


Link to post
Share on other sites

Mersi pentru link-uri , oricum stiam ce inseamna masurarea puterii active si nu vreau sa contorizez energia consumata ( kwattora ) , ci sa masor puterea ( watt ).

Inmultirea dintre U si I se poate face cu o celula Gilbert . Aici ar fi o schema simpla http://www.elecdesign.com/Articles/Inde ... cleID=2190

Ma gandeam ca ati experimentat si voi si stiti mai mult ...

Share this post


Link to post
Share on other sites

Pai contorul de energie iti da E=U*I*t in KWh. Imparti la timpul de masura si obtii puterea.

Share this post


Link to post
Share on other sites

Tare sfatul tau , frate . :axe: Sa te vad pe tine cocotat la contor , asteptand sa se invarta , cand consumatorul are vreo 5W . Plus ca trebuie sa deconectezi orice altceva mai ai prin prize si in final obtii puterea medie . Sunt cazuri cand puterea variaza in timp ( rapid ) functie de alti parametrii si asta e de urmarit .

Share this post


Link to post
Share on other sites

Nu cred ca trebuie sa te cocoti nicaieri sunt scule gata facute presupun pe care le introduci inainte de consumatorul masurat si gata(cel mai simplu cred eu ar fi cu un PIC care masoara U si I si iti afiseaza produsul). N-am stat sa caut pe net dar sigur gasesti ceva.

Share this post


Link to post
Share on other sites

Pai da , asta cautam si eu , o schema de wattmetru . Daca stie cineva il rog sa posteze .

Share this post


Link to post
Share on other sites

Mersi pt. link , dar schemele alea sunt pt. masurarea energiei consumate ( contoare electronice ). Oricum interesant.

Share this post


Link to post
Share on other sites
Guest maximus

ptr cel care a initiat topicul...sa imi dea nu pv ca sa nu uit sa-i dau scheme de wattmetru...create din minim 2 aparate de masura...evident ptr monofazat sau trifazat....

Share this post


Link to post
Share on other sites

Guest Vasile

le poti atasa aici sa le vada si alta lume

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.