Pono nā lako uila uila kiʻekiʻe e mālama i ka hoʻomake maikaʻi ʻana i ka wā o ka hana ʻana, no laila e hoʻokō ʻia kahi moʻo o nā hoʻokolohua insulation mai ka hoʻomaka ʻana o nā lako hana.Aia kēia mau ho'āʻo: nā ho'āʻo waiwai ma ke kaʻina hana, nā ho'āʻo waena i ke kaʻina hana, ka qualitative huahana a me nā ho'āʻo hale hana, hoʻohana i nā ho'āʻo hoʻokomo ma ka pūnaewele, a me nā ho'āʻo pale pale no ka pale a me ka hana i ka wā hoʻohana.ʻO ka hōʻike o nā lako uila a me nā hoʻokolohua pale ʻelua nā hoʻokolohua nui loa.Ka People's Republic of China Electric Power Industry Code and National Code: DL/T 596-1996 "Preventive Test Procedures for Power Equipment" A me GB 50150-91 "Electrical Equipment Replacement Test Specifications" E wehewehe i nā kikoʻī a me nā kikoʻī o kēlā me kēia hoʻokolohua.
2. Ho'āʻo Kāohi ʻana
Preventive Insulation Test of Electrical Equipment He mea nui e hōʻoia i ka hana palekana o nā lako.Ma hope o ka ho'āʻo, hiki ke hoʻopaʻa ʻia ke kūlana insulation o ka lako, hiki ke loaʻa ka pōʻino o ka insulation i ka manawa, a hiki ke wehe ʻia ka pale.Inā He pilikia koʻikoʻi, pono ia e hoʻololi i ka lako e pale aku ai i nā poho hiki ʻole ke hoʻoponopono ʻia, e like me ka pau ʻana o ka mana a i ʻole nā lako hana i hōʻino ʻia e ka hāʻule ʻana o ka insulation i ka wā o ka hana.
Hiki ke hoʻokaʻawale ʻia nā hoʻokolohua pale insulation i ʻelua mau ʻāpana: ʻo kekahi ka hoʻokolohua non-destructive a i ʻole ka hoʻāʻo ʻana i ke ʻano o ka insulation, e pili ana i nā ʻano ʻano ʻano like ʻole i ana ʻia ma ka haʻahaʻa haʻahaʻa a i ʻole nā ala ʻē aʻe e hōʻino ʻole ai i ka insulation, me ke ana ʻana i ke kūʻana o ka insulation, leakage i kēia manawa, Dielectric Loss Tangent, Etc. A laila e hoʻoholo inā he mau hemahema paha ka Insulation.Ua hōʻike ʻia nā hoʻokolohua he pono kēia ʻano, akā ʻaʻole hiki ke hoʻohana ʻia e hoʻoholo pono i ka ikaika uila o ka insulation.ʻO ka mea ʻē aʻe he hoʻāʻo hoʻopōʻino a i ʻole ka hoʻāʻo ʻana.ʻOi aku ka kiʻekiʻe o ka Voltage i hoʻohana ʻia ma ka hoʻāʻo ʻana ma mua o ka voltage hana o ka mea hana, a ʻo nā koi no ka hoʻāʻo ʻana he ʻoi loa.ʻOi aku ka nui o ka pilikia o ka hōʻike ʻana a me ka hōʻiliʻili ʻana i nā hemahema, a i mea e hōʻoiaʻiʻo ai i ka hoʻokaʻawale ʻana i kekahi ikaika uila, e komo pū ana me ka DC Withstand Voltage, Communication Withstand Voltage, etc. Poino i ka Insulation.
3. Ho'āʻo i ka hāʻawi ʻana i nā lako uila
I mea e hoʻokō ai i nā pono o ka ʻenehana hoʻokomo uila a me nā mea hoʻohana uila e hoʻololi i nā hoʻokolohua, a hoʻolaha i ka hoʻolaha ʻana a me ka hoʻohana ʻana i nā ʻenehana hou no nā hoʻokolohua hoʻololi i nā lako uila, ʻo ka National Standard GB 50150-91 "Electrical Equipment Replacement Experiment Specifications" Hoʻopuka kikoʻī i nā ʻike a me Nā kikoʻī o nā hoʻokolohua like ʻole.Ma waho aʻe o kekahi mau hoʻokolohua hoʻāʻo pale ʻana, nā hoʻokolohua hoʻololi i nā lako uila e komo pū kekahi i nā hoʻokolohua ʻano ʻē aʻe, e like me Transformer DC Resistance a me Ratio Experiments, Circuit Breaker Loop Resistance Experiments, etc.
4. Ke Kumu Kumu o ka ho'āʻo pale pale
4.1 Ho'āʻo Kū'ē Kū'ē Kū'ē Kū'ē Kū'ē Kū'ē ka mea i hoʻohana nuiʻia a maʻalahi loa i ka ho'āʻoʻana o nā lako uila.Hiki i ka waiwai o ka pale ʻana i ka insulation ke hoʻohālikelike pono i nā hemahema o ka insulation, e like me ka nui o ka haʻahaʻa, contamination, overheating koʻikoʻi a me ka ʻelemakule.ʻO ka mea hana maʻamau i hoʻohana ʻia no ka hoʻāʻo ʻana i ke kūpaʻa ʻana he Insulation Resistance Tester (Insulation Resistance Tester).
Loaʻa nā ʻano ʻano like me 100 Volts, 250 Volts, 500 Volts, 1000 Volts, 2500 Volts, a me 5000 Volts.Pono e hoʻohana ʻia ka Insulation Resistance Tester e like me DL/T596 "Preventive Experimental Procedures for Power Equipment".
4.2 Leakage Ho'āʻo o kēia manawa
ʻO ka Voltage o ka General DC Insulation Resistance Tester He haʻahaʻa ma mua o 2.5KV, ʻoi aku ka haʻahaʻa ma mua o ka Voltage hana o kekahi mau mea uila.Inā manaʻo ʻoe he haʻahaʻa loa ke ana ʻana o ka Voltage o ka Insulation Resistance Tester, hiki iā ʻoe ke ana i ka leakage o nā lako uila ma ka hoʻohui ʻana i ka DC High Voltage.ʻO nā mea hana maʻamau no ke ana ʻana i ka leakage o kēia manawa me nā mea hoʻololi hoʻokolohua kiʻekiʻe a me nā mea hana kiʻekiʻe DC.Ke loaʻa nā hemahema o ka lako, ʻoi aku ka nui o ka leakage ma lalo o ka voltage kiʻekiʻe ma mua o ka mea ma lalo o ka uila haʻahaʻa, ʻo ia hoʻi, ʻoi aku ka liʻiliʻi o ka pale ʻana ma lalo o ka voltage kiʻekiʻe ma mua o ka mea ma lalo o ka uila haʻahaʻa.
ʻAʻole nui ka ʻokoʻa ma waena o ka Leakage Current a me ka Insulation Resistance of the Medical Withstand Voltage Tester Ana Equipment, akā ʻo ka Leakage Current Ana i kēia mau ʻano:
(1) Ua ʻoi aku ka kiʻekiʻe o ka Voltage Ho'āʻo ma mua o ka mea hōʻike kūʻē i ka insulation.ʻIke maʻalahi nā hemahema o ka hoʻokaʻawale ʻana iā ia iho, a ʻike ʻia kekahi mau hemahema convergence me ke komo ʻole.
(2) ʻO ke ana ʻana i ka pilina ma waena o ke au leakage a me ka Voltage i hoʻohana ʻia e kōkua i ka nānā ʻana i nā ʻano o nā hemahema insulation.
(3) ʻO ka Microampere i hoʻohana ʻia no ka leakage ana i kēia manawa ʻoi aku ka pololei ma mua o ka mea hōʻike hōʻike kūʻē insulation.
4.3 DC Kū i ka Voltage Test
ʻOi aku ka kiʻekiʻe o ka hoʻāʻo ʻana o ka DC Withstand Voltage
ʻO ke kamaʻilio ʻana me ka hoʻāʻo ʻana i ka Voltage i ʻoi aku ke koʻikoʻi o kekahi mau nāwaliwali o ka hoʻokaʻawale ʻana.No laila, pono ia e hana i nā hoʻokolohua ma ka pale ʻana i ka insulation, absorption rate, leakage current a me dielectric loss ma mua o ka hoʻokolohua.Inā ʻoluʻolu ka hopena o ka hoʻāʻo, hiki ke hoʻokō ʻia ke kamaʻilio me ka hoʻāʻo Voltage.A i ʻole, pono e hoʻoponopono ʻia i ka manawa, a pono e hoʻokō ʻia ka hoʻāʻo ʻana o ke kamaʻilio me ka Voltage ma hope o kēlā me kēia pahuhopu i kūpono e pale i ka pōʻino insulation pono ʻole.
4.5 Ho'āʻo O Dielectric Loss Factor Tgδ
ʻO ka Dielectric Loss Factor Tgδ kekahi o nā pahuhopu kumu e hōʻike ana i ka hana insulation.Hōʻike ka Dielectric Loss Factor Tgδ i ke ʻano o ke ʻano o ka nalowale ʻana.Hiki iā ia ke ʻike ikaika i ka hoʻokaʻawale ʻana o nā lako uila i hoʻopili ʻia e ka pulu, ka hoʻohaʻahaʻa, a me ka hōʻino ʻana, a me nā hemahema kūloko o nā lako liʻiliʻi.
ʻO ka hoʻohālikelike ʻana i ka Lapaʻau Kūʻē Voltage Tester i ka Insulation Resistance a me ka Leakage o kēia manawa, ʻo ka Dielectric Loss Factor Tgδ Loaʻa i nā pono nui.ʻAʻohe mea e pili ana i ka Voltage ho'āʻo, ka nui o ka laʻana hoʻāʻo a me nā mea ʻē aʻe, a ʻoi aku ka maʻalahi o ka hoʻokaʻawale ʻana i ka hoʻololi ʻana o nā mea uila.No laila, ʻo ka Dielectric Loss Factor Tgδ kekahi o nā hoʻāʻo nui loa no ka hoʻāʻo ʻana i ka hoʻāʻo ʻana o nā lako uila uila kiʻekiʻe.
Hiki ke hoohana 'ia ka Dielectric Loss Factor Tgδ no ka imi ana i na hemahema insulation.
(1) Māmā;(2) Komo i ka Conductive Channel;(3) Loaʻa i ka Insulation nā ʻōhū ea manuahi, a me ka hoʻokaʻawale ʻana a me nā pūpū;(4) He lepo ka Insulation, Degenerated, a me ka ʻelemakule.
Lapaʻau hoʻopaʻa i ka Voltage
Ka manawa hoʻouna: Feb-06-2021
