Iinkqubo zovavanyo ekufuneka zilandelwe xa kusenziwa iimvavanyo zokukhupha inxalenye

Ngexesha lovavanyo lombane lwe-AC, inkqubo yokulinganisa ngokuyinxenye yokukhupha isetyenziswa ngolu hlobo lulandelayo:

(1) Isampuli yonyango

Ngaphambi kovavanyo, isampuli kufuneka ilungiswe ngokwemigaqo efanelekileyo:

1. Gcina umphezulu wemveliso yovavanyo ucocekile kwaye womile ukukhusela izikwere zendawo ezibangelwa ukufuma okanye ukungcola kwi-insulating surface.

2. Ngokungabikho kweemfuno ezizodwa, isampuli kufuneka ibe kwiqondo lokushisa eliphantsi ngexesha lovavanyo.

3. Emva komatshini wangaphambili, isenzo se-thermal okanye sombane, imveliso yovavanyo kufuneka ishiywe ixesha elithile ngaphambi kovavanyo, ukwenzela ukunciphisa impembelelo yale miba ingentla kwiziphumo zovavanyo.

                                                                                                                                               Ikhamera yeHV Hipot GDUI-311PD

(2) Khangela inqanaba lokukhutshwa kwenxalenye yesekethe yovavanyo ngokwayo

Musa ukudibanisa imveliso yovavanyo kuqala, kodwa sebenzisa i-voltage kuphela kwisekethe yovavanyo.Ukuba akukho kukhutshwa ngokuyinxenye kwenzekayo phantsi kombane wovavanyo ongaphezulu kancinci kunemveliso yovavanyo, isekethe yovavanyo ifanelekile;ukuba inqanaba lokuphazamiseka kokukhupha inxalenye lidlula okanye lifikelela kumthamo ovumelekileyo wokukhupha wemveliso yovavanyo lwama-50% exabiso, umthombo wokuphazamiseka kufuneka ichongwe kwaye kuthathwe amanyathelo okunciphisa inqanaba lokuphazamiseka.

(3) Ukulinganisa iluphu yovavanyo

Isixhobo kwisekethe yovavanyo kufuneka silinganiswe ngokuqhelekileyo phambi koxinzelelo ukuze kuqinisekiswe umlinganiso wesikali somlinganiselo wesiphaluka sovavanyo xa imveliso yovavanyo ixhunyiwe.Le coefficient ichaphazeleka kwiimpawu zesekethe kunye nomthamo wemveliso yovavanyo.

Ngaphantsi kwe-sensitivity yesiphaluka esilinganisiweyo, qaphela ukuba kukho ukuphazamiseka okukhulu xa umbane ophezulu we-voltage ungaxhunywanga okanye emva kokuba umbane ophezulu we-voltage uxhunyiwe, kwaye ukuba kunjalo, zama ukuwuphelisa.

(4) Ukumiselwa kwamandla ombane okuqalisa ukukhutshwa kunye nokucima kombane

Susa isixhobo sokulinganisa kwaye ugcine ezinye iintambo zingatshintshwanga.Xa i-waveform yombane wovavanyo ihlangabezana neemfuno, i-voltage yongezwa ukusuka kwi-voltage kude ngaphantsi kwe-voltage elindelekileyo yokukhupha i-voltage yokuqala, kwaye i-voltage iphakanyiswa ngesantya esichaziweyo de amandla okukhutshwa afikelele kwixabiso elichaziweyo.I-voltage ngeli xesha yi-voltage yokukhupha i-partial discharge.Emva koko i-voltage inyuswa nge-10%, kwaye ke i-voltage iyancipha kuze kube yilapho umthamo wokukhupha ulingana nexabiso elichazwe ngasentla, kwaye i-voltage ehambelanayo kukucima ukukhutshwa kwenxalenye.Xa ulinganisa, i-voltage esetyenzisiweyo ayivumelekanga ukuba idlule i-voltage elinganisiweyo yokumelana nento yokuvavanya.Ukongeza, ukusetyenziswa okuphindaphindiweyo kwee-voltages ezikufutshane nayo kunokonakalisa into yovavanyo.

(5) Ukulinganisa ukukhutshwa kwenxalenye phantsi kombane wovavanyo oluchaziweyo

Kunokubonwa apha ngasentla ukuba iiparamitha ezibonisa ukukhutshwa ngokuyinxenye zonke zilinganiswa kumbane othile, onokuthi ube phezulu kakhulu kunokokuqala kokukhutshwa kombane.Ngamanye amaxesha kuyamiselwa ukulinganisa umthamo wokukhupha phantsi kwee-voltages ezininzi zovavanyo, kwaye ngamanye amaxesha kuyamiselwa ukuba kugcinwe ixesha elithile phantsi kombane othile wovavanyo kwaye wenze imilinganiselo emininzi ukujonga indlela yophuhliso lokukhutshwa ngokuyinxenye.Ngelixa ulinganisa umthamo wokukhupha, unokulinganisa inani lokukhutshwa, ukukhutshwa komyinge wangoku kunye nezinye iiparitha zokukhutshwa.

1. Umlinganiselo ngaphandle kombane ofakwe ngaphambili

Ngexesha lovavanyo, i-voltage kwisampulu inyuka ngokuthe ngcembe ukusuka kwixabiso eliphantsi ukuya kwixabiso elichaziweyo, kwaye igcinwe ixesha elithile ngaphambi kokulinganisa ukukhutshwa kwenxalenye, emva koko iyancipha i-voltage kwaye inqunyulwe ukunikezelwa kwamandla.Ukukhutshwa ngokuyinxenye ngamanye amaxesha kulinganiswa ngexesha lokunyuka kwamandla ombane, ukuya ezantsi, okanye ngalo lonke ixesha lovavanyo kumbane ochaziweyo.

2. Umlinganiselo wombane ofakwe ngaphambili

Ngexesha lovavanyo, i-voltage inyuka ngokuthe ngcembe ukusuka kwixabiso eliphantsi, kwaye emva kokugqithisa i-voltage yovavanyo lokukhupha inxalenye echaziweyo, inyuka iye kwi-voltage efakwe ngaphambili, iyigcine ixesha elithile, emva koko yehla kwixabiso lombane wovavanyo, igcina ixesha elichaziweyo, kwaye emva koko ilinganisa ngexesha elinikiweyo lokukhupha ngokuyinxenye.Ngethuba lonke ixesha lokusetyenziswa kwe-voltage, ingqwalasela kufuneka ihlawulwe kwinguqu yobuninzi bokukhutshwa.