Kuchazwe Ama-Circuit Breakers: Ukuvikelwa, Ukuhlelwa, kanye Nokusetshenziswa
Yini i-Circuit Breaker?
Ama-circuit breaker angamadivayisi ayisihluthulelo okuvikela asetshenziselwa ukunqamula ngokuzenzakalelayo amasekhethi anephutha kumasistimu kagesi. Imisebenzi yabo eyinhloko ihlanganisa ukuvikela ukugcwala ngokweqile, ukuvikela isifunda esifushane, nokuhlukaniswa kukagesi.
Ama-Circuit breakers zihlukaniswa ngohlelo lokusebenza I-Miniature (MCB), Ikesi Elibunjiwe (MCCB), I-Air (ACB), I-Vacuum (VCB), ne-Residual Current (RCCB/RCBO) izinhlobo.
Basebenza nge i-thermal (i-overload) futhi kazibuthe (isiyingi esifushane) izindlela zokukhubeka ze ukunqanyulwa okusheshayo.
Ku motor control systems, ama-breaker asebenza njenge amaswishi okuvikela amakhulu, sisebenza ndawonye oxhumana nabo (okulawula kude) futhi ama-thermal relay (ukuvikela ukulayisha ngokweqile).
Ukukhetha kufanele icabangele yamanje elinganiselwe, ukuphuka amandla, isibalo sezigxobo, futhi ijika elijikayo (isb., uhlobo C lokuvikelwa kwemoto okujwayelekile) ukufanisa umthwalo kanye nesistimu idinga ngokunembile.
Izingxenye Eziyinhloko Zohlelo Lokuhlukana Kwesekethe
I-Din Rail Breaker
I-DIN rail circuit breaker ama-circuit breaker afakwe kuma-DIN rails, avame ukusetshenziswa emabhokisini okusabalalisa, anesakhiwo esihlangene nokufaka kalula. Asetshenziswa kakhulu ukuvikela ugesi ezindlini nasezimbonini.
Izigxobo: 1P, 2P, 3P, 4P
Kukalwe Okwamanje (Kuphakathi): 6A - 125A
Ukuphulwa Kwekhono (Icn): 4.5kA - 25kA (nge-IEC/EN 60898)
I-Voltage elinganiselwe (Ue): 230V-400V AC (okukodwa/isigaba sesithathu) | 24V-60V DC
Isici Sokuhamba: Thayipha C (imithwalo evamile), Uhlobo D (imithwalo ephezulu ye-inrush), Uhlobo K (okuqondene nemoto)
Uhlobo Lwetheminali: Amatheminali e-Screw clamp / Amatheminali alayishwe entwasahlobo
Ama-Circuit Breaker Ekesi Elibunjiwe
Iziqephu zesekethe ezibunjiwe zisetshenziselwa ukuvikela kwamanje okuphakathi nendawo (njengokusabalalisa amandla ezimbonini). Igobolondo lenziwe ngezinto zokuvikela ukuvikela ukushaqeka kukagesi kanye ne-arc flash. Ifanele imishini yamandla aphezulu kanye nokuvikelwa kwamandla okuyinhloko.
Izigxobo: 3p, 4p
Kukalwe Okwamanje (Kuphakathi): 100A - 6300A
Ukuphulwa Kwekhono (Icu/Ics): 25kA - 200kA (IEC 60947-2)
I-Voltage elinganiselwe (Ue): 400V-690V AC (50/60Hz) | 250V-1000V DC
Isici Sokuhamba: I-Thermal-Magnetic (Fixed) / Adjustable Electronic (LSI Protection)
Uhlobo Lwetheminali: Ngaphambili/Ngemuva Ikhebula Lokungena, Amatheminali we-Lug
Motor Protection Circuit Breakers
Ama-motor circuit breaker aklanyelwe ngokukhethekile izinjini ukuvimbela ukulayisha ngokweqile, isifunda esifushane kanye nokulahlekelwa kwesigaba. Zivame ukusetshenziselwa amakhabethe okulawula ukuvikela ngokuqondile ama-motors.
Izigxobo: 3p, 4p
Kukalwe Okwamanje (Kuphakathi): 0.4A - 630A
Ukuphulwa Kwekhono (Icu/Ics): 10kA - 150kA (IEC 60947-2)
I-Voltage elinganiselwe (Ue): 400V-690V AC (50/60Hz) | 24V-250V DC
Imisebenzi yokuvikela: Ukulayisha ngokweqile, Isiyingi Esifushane, Ukulahlekelwa Kwesigaba, Ukungalingani Kwesigaba, Ukuvikelwa Kwerotha Ekhiyiwe
Ukulungiswa Kokuhamba: I-Thermal-Magnetic/Electronic
Lawula Amandla kagesi: 24V-240V AC/DC (Ongakukhetha ngokukhishwa kwe-Shunt/Ukukhishwa kwe-Undervoltage)
Uhlobo Lwetheminali: I-Spring Clamp/Screw Terminal
I-Air Breaker
Ama-air circuit breaker asetshenziswa ezimweni eziphakeme zamanje (njengamaswishi amakhulu emakamelweni okusabalalisa), kanti i-arc yokucima umlilo iwumoya. Zifanele imishini yezimboni enamandla amakhulu kanye nokuvikelwa kwesistimu yebhasi.
Izigxobo: 3p, 4p
Kukalwe Okwamanje (Kuphakathi): 800A - 6300A
Ukuphulwa Kwekhono (Icu/Ics): 50kA - 200kA
I-Voltage elinganiselwe (Ue): 400V-690V AC (50/60Hz) | 250V-1500V DC
Imisebenzi yokuvikela: Ukulayishwa ngokweqile, Isiyingi Esifushane, Iphutha Eliphansi, Ukutholwa kwe-Arc Flash
Iyunithi yokuhamba: Isekelwe ku-Microprocessor (I-Adjustable L, S, G, I 2 t, Ukukhetha kwendawo)
Lawula Amandla kagesi: 24V-48V DC / 110V-440V AC (Ididiyelwe i-Shunt/Undervoltage Release)
Uhlobo Lwetheminali: Uxhumano Lwebha Yebhasi Evundlile/Emile
I-DC Breaker
Ama-circuit breaker e-DC asetshenziswa kumasekethe e-DC (njengamasistimu elanga, izimoto zikagesi). Aklanywe ngokuhlukile kuma-circuit breaker e-AC futhi aklanyelwe ngokukhethekile ukunqamula i-DC yamanje.
Izigxobo: I-1P (isigxobo esisodwa), 2P (isigxobo esiphindwe kabili)
Kukalwe Okwamanje (Kuphakathi): 16A - 4000A
I-Voltage elinganiselwe (Ue): I-60V-1500V DC (isekela amamodeli kagesi aphezulu wezinhlelo ze-photovoltaic)
Ukuphuka Amandla (Icu): 10kA-50kA (uma i-voltage ≤500V DC) | 5kA-20kA (uma i-voltage>500V DC)
I-Arc Extinguishing: Idizayini yokucisha i-arc yamagnetic | Ukucisha i-arc ye-vacuum
Isici Sokuhamba: I-Fixed thermal magnetic tripping | Uhambo lwe-elekthronikhi olulungisekayo
Ukucushwa kwe-polarity: I-Single polarity/Bipolarity
Uhlobo Lwetheminali: Isikulufa setheminali/Itheminali ye-Plug-in modular
I-Smart Breaker
Ama-circuit breaker ane-remote control, ukuqapha, ukuphathwa kwamandla neminye imisebenzi. Okuvame ukusetshenziswa ezinhlelweni zokusabalalisa amandla ezihlakaniphile, ezingalawula futhi ziqaphe ukusetshenziswa kwamandla ngesikhathi sangempela ngomakhalekhukhwini noma amasistimu.
Inombolo yezigxobo (izigxobo): 1P, 2P, 3P, 4P
Ikalwe okwamanje (In): 6A - 630A
Ukuphuka kwamandla (Icu): 10kA - 100kA (isekela ukuphuka okuxubile kwe-AC/DC)
I-voltage elinganiselwe (Ue): 120V-400V AC (isigaba esisodwa/ezintathu) | 48V-1000V DC
Iphrothokholi yokuxhumana: I-Wi-Fi, i-Bluetooth, i-Zigbee, i-LoRaWAN, i-Modbus TCP, i-EtherCAT
Umsebenzi wokuqapha: Ukuqapha kwesikhathi sangempela samanje/i-voltage/amandla, ukuzwa izinga lokushisa, ukulinganisa amandla (kWh, PF, THD)
Umsebenzi wokuvikela: Ukulayisha ngokweqile, isifunda esifushane, ukuvuza (30mA-3A adjustable), i-arc fault (AFCI), i-overvoltage/undervoltage, ukungalingani kwesigaba
Imodi yokulawula: Ukusebenza okwenziwa ngesandla kwasendaweni, isilawuli kude se-APP, ukuxhumana kwesigcawu okuzenzakalelayo (IFTTT), ukuhlanganiswa kwe-API
Ukuqoshwa kwedatha: Ilogi yomcimbi (kufika ku-1000), umlando wokusetshenziswa kwamandla (izibalo ngosuku/inyanga/unyaka), ukuthwebula iphutha le-waveform
Amatheminali: Amatheminali we-clamp entwasahlobo/amatheminali okukulungela