Metodas teisėjavimas kokybė elektros varikliai su a multimetras
Yra trifaziai varikliai ir vienfaziai varikliai % 2c ir vienfaziai varikliai taip pat turi tris ir šešis laidus.
Trifazis variklis
Six taps for the three-phase winding of a three-phase motor. Let's first remove the connecting piece connecting the motor terminal. Measure the start and end of each phase winding with a multimeter to see if it is on or off. Then use a multimeter to measure the resistance value between each two phase winding separately, at least greater than 0.5 megohms, the greater the better. Pagaliau, matas izoliacija varža tarp kiekviena fazė apvija ir variklis korpusas, kuris turėtų taip pat begalinis. Pagal matavimas in šis būdas, kokybė of the trifazis variklis gali būti iš esmės įvertintas.
A vienakryptis variklis tik turi du apvijos, vienas už paleidimas ir vienas už bėgimas. Vienas iš trijų laidų is jų bendra laidas, kuris reiškia kad vienas galas iš the dvifazis apvija is sujungtas kartu. Kitas du yra kitas čiaupai iš iš dvifazis apvija.
The resistance between the two taps should be the maximum and equal to the sum of the resistance values of the two windings.
Of course, we also need to measure the resistance between the coil and the casing to see if it has been broken down. The higher the resistance, the better, and the lowest is the same, not less than 0.5 megaohms.
6-wire vienfazis variklis
The reason why there are 6 lines is that there are actually two lines (Z1, Z2) that are centrifugal switch lines. This type of electric motor also has 6 terminals, so its connecting pieces need to be removed as well. Remove the capacitor as well, and then measure the resistance values at the beginning and end of the two phase windings, as well as between the two phase windings. The method yra tas pats as už trifazius variklius.
Naudojimas a multimetras to teisėjas kokybė a variklis skardinė tik būti a preliminarus sprendimas. Izoliacija varža tarp apvijų ir izoliacija varža išskirta kiekviena fazė apvija į įžeminimą turėtų būti išmatuota su a megohmmetru to be daugiau tiksliu.
There is also a short circuit between the turns of the winding that cannot be measured, and we can only use comparative methods to guess whether there is a phenomenon of inter turn short circuit. For example, if the organization of a certain phase winding is much small than that of other two phases, we can suspect that that it has inter turn short circuit.
