N'oge a na-eme breeki, mfu nke moto na ihe mfu n'ibu bụ ihe dịka 20% nke oke ike a tụrụ atụ.
Ya mere, ọ bụrụ na torque breeki achọrọ erughị uru a, ọ nweghị ihe mgbochi braking mpụga achọrọ. Mgbe a na-eji ihe ntụgharị ugboro (VFD) maka mbelata ma ọ bụ ihe mberede mberede nke nnukwu ibu inertia, moto na-arụ ọrụ na steeti ike ike ma na-ebufe ike ibu na sekit DC nke VFD site na akwa inverter, na-eme ka voltaji ụgbọ ala VFD. ibili.
Mgbe ọ gafere ụfọdụ uru, onye ntụgharị ugboro ugboro ga-akọpụta mmejọ nfebigara oke ọkụ (mmebi nbibi, oke mgbada mgbada na mberede).
Iji gbochie ihe a na-eme, a ga-ahọrọrịrị braking resistor.
Nhọrọ nkeIhe mgbochi breekiiguzogide:
Uru nguzogide nke braking resistor ekwesịghị ibu oke. Uru nguzogide karịrị akarị ga-eduga n'ọkpụkpụ breeki ezughi oke. Ọ na-adịkarị obere karịa ma ọ bụ ha nhata na uru nguzogide braking dabara na 100% braking torque. Nguzogide nke braking resistor ekwesịghị ịdị ntakịrị, ma ghara ịbụ ihe na-erughị uru kacha nta kwere ekwe nke braking resistor. Oke breeki ugbu a nwere ike imebi ngalaba braking arụnyere n'ime nke inverter.
Nhọrọ nke ike braking resistor:
Mgbe ahọpụtara uru nguzogide nkeIhe mgbochi breeki, họrọ ike nke braking resistor dị ka ọnụego ojiji nke braking siri dị 15% na 30%. Inweta 100kg kwụsịtụrụ kpamkpam akpaka dehydrator dị ka ọmụmaatụ, na-eji ihe ntụgharị ugboro 11kW, ọnụego ojiji breeki dị ihe dị ka 15%: Ị nwere ike họrọ 62Ω resistor braking kwekọrọ na "100% braking torque", wee họrọ ike nke braking. resistor. N'ịtụ aka na tebụl "100% braking torque" na "15% braking utilization", ike braking resistor kwekọrọ bụ 1.7kW, ndị a na-ejikarị bụ 1.5kW ma ọ bụ 2.0kW. N'ikpeazụ, họrọ "62Ω, 1.5kW" ma ọ bụ 2.0 kW mgbochi braking.
” Ka ịgbawa ngwa ngwa, enwere ike ijikọ abụọ “62Ω, 1.5kW braking resistors” n'otu n'otu, nke dabara na “31Ω, 3.0kW braking resistor”.
Otú ọ dị, ekwesịrị iburu n'uche na uru ikpeazụ nkeIhe mgbochi breeki ejikọrọ n'etiti ọdụ P+ na DB ekwesịghị ịbụ ihe na-erughị uru nguzogide kacha nta akọwapụtara nke 30Ω. Ojiji breeki: Nke a na-ezo aka n'ogo oge n'okpuru breeki na ngụkọta oge ọrụ. Ọnụọgụ ojiji nke breeki na-enye otu breeki na braking resistor ohere zuru oke iji wepụ okpomọkụ a na-ebute n'oge breeki. Dịka ọmụmaatụ, ọ bụrụ na igwe na-arụ ọrụ maka nkeji 50 ma nọrọ na braking maka nkeji 7.5, ọnụego breeki bụ 7.5/50=15%.
Maka oge ndị na-achọ breeki ugboro ugboro, dị ka ndị dehydrators, ọ bụrụ na ọnụọgụ breeki gafere 15% na tebụl, a ga-abawanye ike nke braking resistor dịka ọnọdụ ọrụ akọwapụtara. Echere na ntụgharị asụsụ a ga-enyere gị aka!
