Circuit Breakers Inotsanangurwa: Dziviriro, Kuronga, uye Kushandisa
Chii chinonzi Circuit Breaker?
Circuit breaker ndiwo akakosha ekudzivirira anoshandiswa kucheka otomatiki maseketi asina kunaka mumasisitimu emagetsi. Mabasa avo akakosha anosanganisira kudzivirira kuwanda, kuchengetedzwa kwepfupi-redunhu, uye kuparadzaniswa kwemagetsi.
Circuit breakers zvinokamurwa nekushandisa mu Miniature (MCB), Molded Case (MCCB), Mhepo (ACB), Vacuum (VCB), uye Residual Current (RCCB/RCBO) mhando.
Vanoshanda kuburikidza thermal (yakawandisa) uye magineti (pfupi-dunhu) kugumburwa nzira dze fast disconnection.
In mota control systems, mabreaker anoshanda se main kudzivirira switch, vachishanda pamwe chete macontactor (yeremote control) uye thermal relays (yekudzivirira kuwandisa).
Selection inofanira kufunga rated current, kutyora kugona, pole count,uye tripping curve (semuenzaniso, mhando C yeyakajairwa mota dziviriro) kuenderana mutoro uye system inoda nemazvo.
Zvikamu Zvikuru zveCircuit Breaker System
Din Rail Breaker
DIN njanji njanji inopwanya maseketi akaiswa paDIN njanji, anowanzoshandiswa mumabhokisi ekugovera, ane compact chimiro uye nyore kuisirwa. Iyo inonyanya kushandiswa pakudzivirira magetsi mudzimba uye maindasitiri.
Poles: 1P, 2P, 3P, 4P
Yakatemerwa Zvazvino (Mu): 6A - 125A
Kutyora Kugona (Icn): 4.5kA - 25kA (paIEC/EN 60898)
Rated Voltage (Ue): 230V-400V AC (imwe/nhatu-chikamu) | 24V-60V DC
Tripping Character: Type C (general mitoro), Type D (yakakwira inrush mitoro), Type K (motor-specific)
Terminal Type: Screw clamp terminals / Spring-yakatakura zviteshi
Molded Case Circuit Breakers
Molded kesi circuit breakers inoshandiswa kune yepakati uye yakakwirira ikozvino kudzivirira (senge maindasitiri simba kugovera). Iyo shell inogadzirwa ne insulating zvinhu kudzivirira kuvhunduka kwemagetsi uye arc flash. Iyo yakakodzera kune yakakwirira-simba midziyo uye huru yekudzivirira simba.
Poles: 3P, 4P
Yakatemerwa Zvazvino (Mu): 100A - 6300A
Kutyora Kugona (Icu/Ics): 25kA - 200kA (IEC 60947-2)
Rated Voltage (Ue): 400V-690V AC (50/60Hz) | 250V-1000V DC
Tripping Character: Thermal-Magnetic (Yakagadziriswa) / Inogadziriswa Yemagetsi (LSI Dziviriro)
Terminal Type: Mberi / Rear Cable Kupinda, Lug Terminals
Motor Dziviriro Circuit Breakers
Mota dziviriro yedunhu mabreaker akanyatso gadzirirwa mota kudzivirira kuwandisa, kupfupi dunhu uye kurasikirwa kwechikamu. Vanowanzoshandiswa mukutonga makabati kuti vadzivirire zvakananga motors.
Poles: 3P, 4P
Yakatemerwa Zvazvino (Mu): 0.4A - 630A
Kutyora Kugona (Icu/Ics): 10kA - 150kA (IEC 60947-2)
Rated Voltage (Ue): 400V-690V AC (50/60Hz) | 24V-250V DC
Dziviriro Mabasa: Overload, Short-Crcuit, Phase Loss, Phase Imbalance, Yakakiyiwa Rotor Dziviriro
Kugadziriswa Kwekufamba: Thermal-Magnetic/Electronic
Kudzora Voltage: 24V-240V AC/DC (Sarudzo yeShunt Kuburitswa/Undervoltage Release)
Terminal Type: Spring Clamp/Screw Terminal
Air Breaker
Air circuit breakers anoshandiswa mumamiriro ezvinhu epamusoro (akadai semafungu makuru mumakamuri ekugovera), uye arc inodzima svikiro imhepo. Izvo zvakakodzera kune yakakwirira-simba maindasitiri emidziyo uye busbar system kuchengetedza.
Poles: 3P, 4P
Yakatemerwa Zvazvino (Mu): 800A - 6300A
Kutyora Kugona (Icu/Ics): 50kA - 200kA
Rated Voltage (Ue): 400V-690V AC (50/60Hz) | 250V-1500V DC
Dziviriro Mabasa: Kuremedza, Short-Circuit, Ground Fault, Arc Flash Detection
Tripping Unit: Microprocessor-Yakavakirwa (Adjustable L, S, G, I 2 t, Zone Selectivity)
Kudzora Voltage: 24V-48V DC / 110V-440V AC (Yakabatanidzwa yeShunt/Undervoltage Release)
Terminal Type: Horizontal/Vertical Busbar Connection
DC Breaker
DC circuit breakers inoshandiswa mumaseketi eDC (senge solar system, mota dzemagetsi). Iwo akagadzirwa zvakasiyana kubva kune AC wedunhu mabreak uye akagadzirirwa chaizvo kucheka DC ikozvino.
Poles: 1P (danda rimwechete), 2P (danda mbiri)
Yakatemerwa Zvazvino (Mu): 16A - 4000A
Rated Voltage (Ue): 60V-1500V DC (inotsigira yakakwirira voltage modhi ye photovoltaic system)
Kutyora Kugona (Icu): 10kA-50kA (apo voltage ≤500V DC) | 5kA-20kA (apo voltage>500V DC)
Arc Kudzima: Magnetic blow-out arc kudzimisa dhizaini | Vacuum arc kudzimisa
Tripping Character: Fixed thermal magnetic tripping | Adjustable electronic tripping
Polarity Configuration: Single polarity/Bipolarity
Terminal Type: Screw terminal / plug-in modular terminal
Smart Breaker
Circuit breakers ine remote control, yekutarisa, simba manejimendi uye mamwe mabasa. Inowanzo shandiswa muhungwaru hwekugovera masimba masisitimu, ayo anogona kudzora uye kutarisa mashandisirwo emagetsi munguva chaiyo kuburikidza nenharembozha kana masisitimu.
Nhamba yematanda (Mapango): 1P, 2P, 3P, 4P
Yakatemerwa ikozvino (Mu): 6A - 630A
Kutyora simba (Icu): 10kA - 100kA (inotsigira AC / DC yakasanganiswa kuputsika)
Rated voltage (Ue): 120V-400V AC (imwe/nhatu-chikamu) | 48V-1000V DC
Communication protocol: Wi-Fi, Bluetooth, Zigbee, LoRaWAN, Modbus TCP, EtherCAT
Monitoring function: Chaiyo-nguva yazvino/voltage/simba rekutarisa, tembiricha inonzwa, simba metering (kWh, PF, THD)
Kudzivirira basa: Kuwedzeredza, kupfupika kwedunhu, kuvuza (30mA-3A inogadziriswa), arc kukanganisa (AFCI), overvoltage / undervoltage, chikamu kusaenzana
Kudzora maitiro: Local manual operation, APP remote control, automated scene linkage (IFTTT), API kubatanidzwa
Kurekodha data: Chiitiko log (kusvika 1000), nhoroondo yekushandisa simba (nhamba nezuva/mwedzi/gore), kukanganisa waveform kubatwa
Zviteshi: Spring clamp terminals / screw terminals