I-PT ne-CT kuma-Transformers: Amaqhawe Angaqashiwe We-Voltage Namanje

I-PT ne-CT kuma-Transformers: Amaqhawe Angaqashiwe We-Voltage Namanje

Uma kukhulunywa ngama-transformer,PT(Isiguquli esingaba khona) kanyeCT(I-Current Transformer) ifana ne-duo eguquguqukayo yomhlaba kagesi—u-Batman no-Robin. Bangase bangagxili ukukhanya njenge-transformer ngokwayo, kodwa laba ababili basebenza ngemuva kwezigcawu ukuqinisekisa ukuthi yonke into isebenza ngokuphepha nangempumelelo. Ake singene endleleni abenza ngayo umlingo wabo ekusetheni ama-transformer ahlukene.

I-PT: I-Voltage Whisperer

II-Potential Transformer (PT)ungumuntu othanda ukwehla amandla kagesi aphezulu afike ezingeni elilawulekayo. Cabanga ukuthi ubhekene ne-33 kV esabekayo (noma ngaphezulu) kusistimu yakho yamandla—iyingozi futhi akuyona into ongathanda ukuyikala ngokuqondile. Yilapho i-PT ingena khona. Iguqula lawo mandla okuphakamisa izinwele abe okuthile amamitha akho futhi ama-relay angakwazi ukuyiphatha ngaphandle kokujuluka, ngokuvamile awehlisele kokuthile okufana no-110 V noma 120 V.

Ngakho-ke, uwatholaphi ama-PT asebenza?

• Ama-transformer ane-voltage ephezulu: Lezi izibhamu ezinkulu zegridi yamandla, ezibamba amandla kagesi noma yikuphi ukusuka ku-110 kV kuya ku-765 kV. Ama-PT lapha aqinisekisa ukuthi ungakwazi ukuqapha futhi ulinganise amandla kagesi ngokuphepha ukude.
• Ama-substation transformers: Ama-PT asebenza eziteshini ezincane ukuze aqaphe futhi alawule amazinga kagesi ngaphambi kokuthi asatshalaliswe kubathengi bezimboni noma abahlala khona.
• Ama-transformer okuvikela kanye namamitha: Ezinhlelweni lapho ukuqapha kwamandla kagesi kubaluleke kakhulu ekuphepheni nasekukhokhisweni, ama-PTs ayangenela ukuze anikeze ukufundwa kwamandla kagesi okunembile emagumbini okulawula, ama-relay, namadivayisi okuvikela.

I-PT ifana nomhumushi ozolile, oqoqiwe ekhonsathini kagesi enomsindo, ethatha lawo manothi ahlukanisa izindlebe angu-110 kV futhi awaguqule abe umsindo opholile ongawubamba umshini wakho.

CT: I-Tamer Yamanje

Manje, ake sikhulume ngeI-Transformer Yamanje (CT), umqeqeshi womuntu siqu wesistimu yamandla. Lapho i-current iqala ukugoba imisipha yayo ngezinkulungwane zama-amps ageleza ku-transformer yakho, i-CT ingena ukuze ithobe ifike ezingeni eliphephile—imvamisa kububanzi obungu-5 A noma u-1 A.

Uzothola ama-CTs elenga ku:

• Ukusabalalisa ama-transformers: Laba bafana basebenzela izindawo zokuhlala noma ezohwebo, ngokuvamile ezisebenzisa amandla kagesi afana no-11 kV ukuya ku-33 kV. Ama-CTs lapha aqinisekisa ukuqapha nokuvikela kwamanje, ukugcina amathebhu ukuthi ingakanani ijusi egeleza emigqeni.
• Ama-transformer kagesi eziteshini ezincane: Ama-CT aqapha amandla amanje eziteshini zamandla kagesi aphezulu lapho ama-transformer ehlisa khona i-voltage esuka kumazinga okudlulisela (isb., 132 kV noma ngaphezulu) kuya emazingeni okusabalalisa. Abalulekile ekutholeni amaphutha futhi acuphe amadivayisi okuvikela ngaphambi kokuthi kube khona okungahambi kahle.
• Iziguquli zezimboni: Ezimbonini noma ezindaweni ezisindayo zezimboni, ama-transformer avame ukuphatha imithwalo emikhulu, futhi ama-CT akhona ukuze aqaphe amaza amakhulu. Uma kukhona okungahambi kahle, i-CT idlulisela ulwazi ezinhlelweni zokuvikela ezivala izinto ngaphambi kokuthi zithoswe.

Cabanga nge-CT njengebhampa ekilabhini—igcina amandla amanje ukuze angagxili amasistimu akho okuvikela, futhi uma izinto ziba namahlonyana kakhulu, i-CT yenza isiqiniseko sokuthi othile ushaya isitobhi esiphuthumayo.

Kungani i-PT ne-CT Matter

Ndawonye, ​​i-PT kanye ne-CT zakha i-duo yamaphoyisa angabangani bomhlaba we-transformer. Isizathu sokuthi o-opharetha bakwazi ukuqapha ngokuphepha futhi balawule ukusebenza kwe-transformer ngaphandle kokusondelana nesilo ngokoqobo (ngethembe, awufuni ukusondela kulolo hlobo lwamandla kagesi kanye namanje ngaphandle kokuvikela okukhulu). Noma ngabe ii-transformer yokusabalalisaendaweni yangakini noma ai-high-voltage power transformeramandla okuphakela kuwo wonke amadolobha, ama-PT kanye nama-CTs ahlala ekhona, egcina i-voltage kanye namanje emgqeni.

Iqiniso Elijabulisayo: Ukubeka Iso Kuzo Zombili Iziphetho

Wake wazibuza ukuthi kungani umthethosivivinywa wakho wamandla unembe kangaka? Ungabonga ama-CTs nama-PTsmetering transformers. Benza isiqiniseko sokuthi kokubili inkampani yezinsiza kanye nekhasimende bazi kahle ukuthi ungakanani ugesi osetshenziswayo ngokwehla ngokunembile futhi kukale amandla kagesi kanye namanje. Ngakho-ke, yebo, i-PT ne-CT zigcina izinto zilungile futhi ziyisikwele kuzo zombili iziphetho zegridi yamandla.

Isiphetho

Ngakho-ke, noma ngabe i-transmission transformer ephakeme noma i-transformer yokusabalalisa esebenza kanzima,I-PT kanye ne-CTamaqhawe angaculwa agcina yonke into ihamba kahle. Bathambisa amandla kagesi aphezulu kanye namaza amakhulu ukuze ama-opharetha, ama-relay, namamitha akwazi ukukuthwala ngaphandle kwesudi yeqhawe elikhulu. Ngokuzayo uma uvula iswishi yokukhanya, khumbula—kukhona ithimba lonke labanakekeli bakagesi abaqinisekisa ukuthi i-air kanye ne-voltage ziziphatha ngokwazo.

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