Zvinorehwa nemaparamita akasiyana-siyana mugoko remuchina wekugadzirisa circuit breaker (MCCB)

Makaputsi edunhu akaumbwa (MCCB) zvinhu zvakakosha mumagetsi, zvichipa dziviriro kubva kuma "short circuits" uye overloads. Kunzwisisa ma "parameters" akasiyana-siyana ari mu "MCCB enclosure" kwakakosha kuti uve nechokwadi chekushanda nemazvo uye kuchengetedzeka kwesystem yemagetsi.

Voltage yakayerwa Ue ndiyo voltage yesystem, iyo yakakwira ne5% kupfuura voltage yakayerwa pamagetsi. Iyo plastic case circuit breaker yakagadzirirwa kushanda nevoltage inomira ne impulse Uimp=12KV uye voltage yakayerwa ye insulation Ui 400V. Zvinofanira kucherechedzwa kuti voltage ye distribution network haifanirwe kudarika voltage yakayerwa ye insulation Ui kudzivirira chero njodzi inogona kuitika.

Chiyero chazvino che125 Amp chinomiririra kugona kwepamusoro kwekutakura kweMCCB. Pamusoro pezvo, parameter yekushanda kwemagetsi inokurumidza II yekuburitswa kwemagineti i10In, apo In iri kagumi pane ratio yemagetsi (1250A), zvichiita kuti pave nekushanda nekukurumidza uye kunoshanda mumamiriro ezvinhu epfupi.

Kurudyi kweganda remuchina wekugadzirisa circuit breaker rakaumbwa, muganhu we "limit limit short-circuit segmenting capacity" Icu=35KA uye muganhu we "operating short-circuit breaking capacity" Ics=22KA zvinoratidza kugona kwe "molded case circuit breaker" kugadzirisa mamiriro e "short-circuit" pasina kukanganisa kuchengetedzeka. MCCB yakagadzirwa kuti ive ne "working environment temperature" inotangira pa -5°C kusvika 40°C uye frequency ye50/60 Hz, zvichiita kuti ive yakakodzera mamiriro akasiyana-siyana enharaunda.

Pamusoro pezvo, MCCB inotevedzera mitemo yekugadzira IEC/EN60947-2, ichivimbisa kuti mitemo yemhando yepamusoro uye yekuchengetedza inoenderana. Kugadziriswa uku kunosimbisa kuvimbika uye kushanda kweMCCB, zvichipa vashandisi rugare rwepfungwa nezvekushanda kwayo zvakanaka uye kugara kwenguva refu.

Muchidimbu, kunzwisisa ma parameter ari mukati me MCCB enclosure kwakakosha pakusarudza mudziyo wekudzivirira dunhu wakakodzera wesystem yemagetsi. Nekugadzirwa kwayo kwakasimba uye kutevedzera mitemo yekugadzira, MCCB inoita kuti ishande zvakachengeteka uye zvakavimbika mumabasa akasiyana-siyana.