GIS Partial Discharge Test uye Hipot Test

THE

Iyo AC inomira voltage test yeGIS inzira yakakosha mumunda weinjiniya yemagetsi. GIS, inomirira Gasi-Isulated Switchgear, imhando yemidziyo yemagetsi yakakwira-voltage iyo inowanzoshandiswa muzviteshi zvishoma kudzora kufamba kwemagetsi. Kuti uve nechokwadi chekuvimbika uye kuchengetedzeka kweGIS michina, zvakakosha kuita AC inomira voltage test. AC inomira voltage test inoitwa nekuisa yakakwira voltage AC siginecha kumidziyo yeGIS uye kuyera kugona kwayo kumirisana nevoltage isina kuputsika. Muedzo uyu wakakosha sezvo uchitevedzera mamiriro angangotarisana nemidziyo panguva yekushanda, sekurova kwemheni kana kukwira kwemagetsi.

The partial discharge (PD) bvunzondeimwe bvunzo yakakosha yegasi-insulated switchgear (GIS) masisitimu ekuona kuvimbika nekushanda kwawo. Kubuda muchidimbu chiitiko chinogona kuitika mumasisitimu eGIS nekuda kwekuremara kwekudzivirira uye zvinogona kutungamira mukuipa kwekuvharisa uye, pakupedzisira, kukundikana kwehurongwa. Naizvozvo, kuitisa PD bvunzo kwakakosha kuti uone chero hurema hungaite nekukurumidza uye kudzivirira zvinogona kuitika mune ramangwana.

Pane nzira dzakati wandei dzekuita PD bvunzo dzeGIS masisitimu, anosanganisira magetsi, acoustic, uye nzira dzemaziso. Imwe nzira yakajairika inzira yemagetsi, iyo inosanganisira kushandisa voltage kumanikidza kuGIS system uye kuyera chero chidimbu chinobuda chingaitika. Nekuongorora iyo data yakaunganidzwa kubva kubvunzo idzi, mainjiniya anogona kuongorora mamiriro ekudzivirira uye kuona chero zvingangoitika zvinoda kugadziriswa.

Test equipment

1. The variable frequency series resonant test system inoshandiswa pakuedza GIS. Nheyo yekushanda inogamuchirwa kuita kuti dunhu risvike kune resonant state nekugadzirisa frequency uye kuderedza simba remagetsi zvinodiwa. Iyo inosanganisira Variable frequency magetsi emagetsi, ekusimudzira transformer, resonant reactor, uye capacitance divider.

2. The Partial discharge detector inoshandisa yepasi rose standard Windows operating system uye intuitive control and display panel kubvumira kunyange vasina ruzivo rwokuzviwanira kudzidza nekukurumidza nekudzidziswa kushoma. Uye zvakare, maficha epamberi senge kurongeka kwepamusoro, otomatiki calibration, ongororo yedata, uye yakajairwa bvunzo kurekodha. Ine purogiramu yakazara-inodzorwa otomatiki calibration, automatic synchronization, automatic voltage recording, automatic measurement & save & playback features. Teerera neIEC-270 yakadai seyero yekudzokorora kuburitsa n, chiyero chekuburitsa ikozvino I. Mhando dzakasiyana dzekuratidzira dzePD waveform fomu, senge sine mepu, dot matrix, zvichingodaro, ita kuti zvive nyore kuwana mhedzisiro. Kutsva kwedhijitari kusefa uye kudzvanyirira kudzvanywa kwakasanganiswa neakapfuma uye ane simba ehuwandu hwekuongorora kwemaitiro. Iyo yekuona nzira, kuyerwa loop, uye tekinoroji maitiro ekuita zvinoenderana neazvino GB7354 uye IEC-270 "partial discharge kuyerwa" zviyero. Inoshanda kune ese marudzi emhando yepamusoro yemagetsi emagetsi, anovhara iyo yakazara voltage uye huwandu hwehuwandu, pachinzvimbo chemukati medhijitari PD zviridzwa zvetekinoroji yepamusoro.

Critical test procedure:

Pamberi pekuyedzwa, kugadzirira kunofanirwa kupedzwa kuve nechokwadi chekuchengetedza uye kushanda kwebvunzo

1. Iva nechokwadi chekuiswa kweGIS uye gasi mamiriro anosangana nezvinodiwa.
2. Ita mamwe maedzo anodiwa (semuenzaniso, kuramba, mwando, uye kuona kuvuza).
3. Kuzvitsaura midziyo isingaite muyedzo.
4. Ronga kushandiswa kweiyo test voltage uye bvunzo dzestaging.
5. Matanho ekuchengetedza, akadai sepasi uye kudzivirira.

Matanho makuru ebvunzo ndeaya anotevera;

1. Prepressure kurapwa: Isa 30% yakatemerwa voltage kwemaminetsi mashanu kuti ubvise kubhadharisa kwasara.
2. Nhanho yekuwedzera magetsi: Boost voltage ne25%, 50%, 75%, uye 100%, uye bata danho rega rega kweminiti imwe.
3. Synchronous monitoring yekubuda kwenzvimbo: pa100% test voltage kwemaminetsi makumi matatu, rekodha kubuda kwenzvimbo (Isingasviki kana kuenzana ne5pC inokodzera)

IEC standard

FAQ

 

 

01.Maitiro ekuverenga bvunzo yemagetsi yeGIS ac inomira voltage test?

Kubva paIEC 62271-203, Utest=1.1×Umax3Utest​=1.1×3​Umaxuye UmaxUmaxndiyo Max inoshanda voltage yemidziyo.

02. Nzira yekuverenga sei simba re AC resonant test system?

Kazhinji, isu tinofanirwa kusimbisa iyo yakakodzera huwandu kana yazvino yeye test system. Iyo inowanzoverengerwa zvichienderana neyeyedzo nzira uye bvunzo chinhu sebhasibar.

03. Ndedzipi mhando dzemareactor ePD{{1}yemahara AC resonant test system?

Iyo PD-yemahara AC resonant test system inowanzo shandiswa yakaoma type reactor uye inonakidza transformer. Sezvo kukosha kwePD kuri kushoma, kuita kwekudzivirira kuri nani pane rudzi rweoiri.

04. Tinoda riini rudzi rwemafuta reactor?

Oiri- rereactor yemhando inowanzo shandiswa kuita hombe ＞500kVA pareactor imwe chete. PD yemahara bvunzo masisitimu inobhadhara zvakanyanya kune chikamu chekuburitsa kudzora uye kureruka dhizaini, saka chimiro chemafuta hachiwanzo kusarudzwa.

05. Ungasarudza sei online PD detector uye isina PD detector?

Iyo yepamhepo PD detector inowanzo shandiswa bvunzo dzenguva dzose. Kune diki GIS, tinogona kushandisa online PD detector uye UHF sensor. Pachidziviso chePD chisina Indaneti, tinoda kushandisa PD-yemahara yekuongorora resonant system, yakasanganiswa neine partial discharge detector kuti tiongorore kukosha kwePD.

06. Sei nzira yekuyedza dzimwe nguva ichidikanwa padanho rebvunzo?

Kana huwandu hwesimba hweGIS hwakakurisa (semuenzaniso, bhawa refu rebhazi kana chimiro chakaomarara), ita voltage inomira bvunzo muzvikamu zvakasiyana kudzivirira kuwandisa kwemudziyo.