Low voltage switchgear ndi controlgear

Malingaliro oyambira:
Switchgear ndi zida zowongolera ndi mawu ofunikira, omwe amaphatikizapo switchgear komanso kuphatikiza kwake ndi zida zothandizira, kuzindikira, chitetezo ndi zida zosinthira.Zimaphatikizanso kuphatikiza kwa zida zamagetsi ndi zida zokhala ndi mawaya amkati, zida zothandizira, nyumba ndi zida zothandizira.Switchgear imagwiritsidwa ntchito popanga mphamvu, kutumiza, kugawa ndi kutembenuza mphamvu zamagetsi.Zida zowongolera zimagwiritsidwa ntchito poyang'anira chipangizo chogwiritsira ntchito mphamvu.

Switchgear ndi zida zowongolera zimaphatikizapo mfundo zitatu zofunika:

• kudzipatula
Kuti mutetezeke, thimitsani magetsi kapena mulekanitse chipangizocho kapena gawo la basi kuchokera pamagetsi aliwonse kuti mupange gawo lakutali la chipangizocho (mwachitsanzo, pakafunika kondakitala wamoyo).Monga chosinthira katundu, cholumikizira, chophwanyira dera chokhala ndi ntchito yodzipatula, ndi zina.

• control (ozimitsa)
Pazifukwa zogwirira ntchito ndi kukonza, gwirizanitsani kapena kusagwirizana pansi pazikhalidwe zogwirira ntchito.Monga contactor ndi galimoto sitata, lophimba, lophimba mwadzidzidzi, etc.

• chitetezo
Pofuna kupewa zovuta za zingwe, zida ndi ogwira ntchito, monga kuchulukirachulukira, chigawo chachifupi ndi cholakwika chapansi, njira yodutsira zolakwika imagwiritsidwa ntchito kudzipatula.Monga: wowononga dera, gulu losinthira fuse, relay yoteteza ndi kuphatikiza zida zowongolera, ndi zina zambiri.

Switchgear

1. Fuse:
Amagwiritsidwa ntchito makamaka ngati chitetezo chafupipafupi.Dera likakhala lalifupi kapena litalemedwa kwambiri, limangolumikizana ndikudula dera kuti litetezedwe.Ilo lagawidwa mu mtundu wamba ndi semiconductor wapadera mtundu.

2. Switch switch / fuse switch (kusintha gulu la fuse):
Zipangizo zosinthira zamakina zomwe zimatha kulumikiza, kunyamula ndi kutulutsa mphamvu yamagetsi yanthawi zonse komanso kunyamula zomwe zili mumkhalidwe wachilendo (ma switch awa sangathe kulumikiza magetsi afupipafupi)

3. Chowotcha chimango (ACB):
Zomwe zidavotera pano ndi 6300A;Ovotera voteji kuti 1000V;Kuphwanya mphamvu mpaka 150ka;Kutulutsidwa kwachitetezo ndiukadaulo wa microprocessor.

4. Molded case circuit breaker (MCCB):
Zomwe zidavotera pano ndi 3200A;Mphamvu yamagetsi ya 690V;Kuphwanya mphamvu mpaka 200kA;Kutulutsa kwachitetezo kumagwiritsa ntchito ukadaulo wamagetsi wamagetsi kapena microprocessor.

5. Miniature circuit breaker (MCB)
Zomwe zidavotera pano siziposa 125A;Mphamvu yamagetsi ya 690V;Kuphwanya mphamvu mpaka 50kA

6. Kutulutsa kwachitetezo chamagetsi kwamagetsi kumatengera
Residual current (leakage) circuit breaker (rccb/rcbo) RCBO nthawi zambiri imakhala ndi MCB ndi zida zotsalira zapano.Ndi kachipangizo kakang'ono kokha komwe kamakhala ndi chitetezo chapano chotsalira kumatchedwa RCCB, ndipo chipangizo chotsalira chapano chimatchedwa RCD.