Daga Yadda Maimakon Faru Suna Rasa? Tabbatazumi Daga Masu Gaskiya

A cikin hanyoyin karami, masu tsarki na voltage (VTs) suna zama da suka dace ko kai. Idan abin da ya haɗa ba a sanar da shi, kuma an yi tasiriwa don karamin mafi girma, za mu iya duba yana dace kadan. Saboda haka, yana da kyau a yi tasiri hukuma biyu don sanar da sababbin gaba-gaban VT:

• Idan VT ya kusa da kaɗuwar daƙi na silicon steel laminations, wannan ya nuna cewa an yi sabon gaba-gaba na ferroresonance. Wannan yana faru idan abin da suka haɗa a cikin hanyoyin karami suna faɗinsu masu tsarki, wanda ke yi ƙarin daɗi tsayi da inductance na system. Wannan resonance yana daɗi daɗi tsayi masu tsarki na VT, tare da kuma gaba-gaban adadin duwatsu.

• Idan akwai lashe mai kafin VT, ko kayayi da dabba a terminal na biyu da wiring, wannan ya nuna cewa an yi sabon gaba-gaba na ground fault na biyu. Wannan yana haɗa da tsayin voltage na primary-side. Tattaunawa wiring na biyu don daɗi daɗi tsayi, wire ends masu ƙarin daɗi, ko kayayi da dabba da ke magana da abin da suka haɗa. Kuma tattaunawa idan fuse na biyu ko component na biyu suna yi sabon gaba-gaba saboda daɗi tsayi na insulation.

• Idan terminal na primary ya kusa da kayayi da dabba saboda ƙarin daɗi, kuma mounting bolts suka yi sakamakon, sabubu yana daɗi da discharge current mai ƙarin—kamar a lokacin da a yi amfani da VT a matsayin discharge coil na capacitor banks. Tattaunawa idan element na primary fuse ya fi ƙarin daɗi ko an yi amfani da shi daidai. Rating na primary fuse na VT yana da 0.5 A, kuma a low-voltage VTs, ba ta yi ƙarin da 1 A ba.

• Idan ba a samu sabon gaba-gaba na gaba ba a kan VT, tattaunawa component na gaba da wiring don daɗi daɗi tsayi. Idan ba a samu sabon gaba-gaba, tattaunawa masu ƙarin da suka ƙara don sanar da cewa akwai "cracking" ko "popping" sounds idan gaba-gaban. Wannan lafiya na nuna cewa an yi sabon inter-turn discharge a winding na transformer, kamar da yake daɗi da daɗi tsayi na manufacture na voltage transformer.