Matsayin Tattalin Tabbataccen Inganci na Farkon Karamin Jirgin Zafi (TEE) a Switchgears
Hukuma na TEE a Lokacin Watsa Mafi Yawan CB
A lokacin watsa mafi yawa (CB), tsohon kafa mai tsayi (TEEs) suna samu daga fadada aiki a cikin har daɗi. Waɗannan TEEs, wanda suka shafi fadada mai kudaden kamar pre-strikes, re-ignitions, da restrikes, sun nuna girman tsayi da sauran gaba ta frekuensi. Don hukuma da tattara waɗannan TEEs, an gina uku hukumar daɗi:
Hukuma na TEE Daga UHF Antennas
Bayani: Hukumar daɗi ya yi amfani da uku passive ultra-high-frequency (UHF) antennas. Al'adun ya ba da triangulation don hukuma asalin fitaccen bayar, wanda ya ba da hukuma na har daɗi mai yawa a live-tank CBs da kuma hukuma na har daɗi mai yawa a dead-tank CBs.
Amfani: Ya zama daidaiwa don live-tank da dead-tank CBs.
Fadace: Ana ba da hukuma na asalin fitaccen bayar, wanda ya ba da tattara mai yauye da har daɗi mai yawa ko har daɗi mai yawa.
Tartibar: An sanya UHF antennas daɗi a arewacin CB don hukuma waɗannan alamomin bayar, wanda suke tattara don hukuma asalin TEE.
Hukuma na TEE Daga Capacitive Sensors
Bayani: Hukumar daɗi ya fi daidaiwa don dead-tank CBs. An amfani da active high-frequency antenna (AA) da aka sanya a arewacin CB da uku broadband passive antennas (PA), wanda suka yi amfani a matsayin capacitive sensors na electric field, suka sanya a kan har daɗi mai yawa.
Amfani: Ana amfani daɗi karkashin don dead-tank CBs.
Fadace: Capacitive sensors sun iya hukuma wasu lissafin electric field wanda TEEs sun haɓaka, wanda ya ba da hukuma mai yauye da performance na CB a matsayin hukuma mai yauye.
Tartibar: AA ya sanya a arewacin CB, sannan uku PA suka sanya a kan har daɗi mai yawa. Wannan tartibar ya ba da hukuma na TEEs a kan duk phase, wanda ya ba da hukuma mai yauye da performance na CB.
General Test Arrangement (a): AA da PA suka sanya a arewacin CB don hukuma waɗannan alamomin bayar TEE.
Positioning of AA and Three PAs (b): AA ya sanya a arewacin CB, sannan uku PA suka sanya a kan har daɗi mai yawa na 275 kV dead-tank CB.
Hukuma na TEE Daga PD Couplers
Bayani: Hukumar daɗi ya yi kammala hukumar daɗi na farko (UHF antennas) zuwa dead-tank CBs da biyu har daɗi mai yawa a series. An amfani da high-sensitivity antennas, wanda ake kira partial discharge (PD) couplers, don hukuma TEEs.
Amfani: Ya zama daidaiwa don dead-tank CBs da masu biyu har daɗi mai yawa a series.
Fadace: PD couplers suna da girman sensitivity, wanda ya ba da hukuma mai yauye da TEEs a cikin CB configurations mai yauye.
Tartibar: An sanya PD couplers a arewacin abubuwa da suke hukuma waɗannan alamomin bayar TEE daga har daɗi mai yawa, wanda ya ba da hukuma mai yauye da performance na CB.
Amfani
Duka uku hukumar daɗi ana iya amfani don high-voltage (HV) da medium-voltage (MV) circuit breakers, kafin ya shafi muhimmanci da design na CB.
Misal na Tartibar Don Hukumar Daɗi Na Biyu
Wannan tartibar ya nuna cikakken hukuma na TEE daga capacitive sensors (Hukumar Daɗi Na Biyu):
General Test Arrangement (a): AA ya sanya a arewacin CB, sannan uku PA suka sanya a kan har daɗi mai yawa. Wannan tartibar ya ba da hukuma na TEEs daga duk phase.
Positioning of AA and Three PAs (b): AA ya sanya a arewacin 275 kV dead-tank CB, sannan uku PA suka sanya a kan har daɗi mai yawa. Wannan tartibar ya ba da hukuma na TEEs daga duk phase, wanda ya ba da hukuma mai yauye da performance na CB a lokacin watsa mafi yawa.
