Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/6076| Título: | Electromagnet and switchboard for slewing crane |
| Autor(es): | Pedrosa, Delfim Duarte Rolo Teixeira, Patrício Esteves, João Sena |
| Palavras-chave: | Electromagnet Switchboard Contactor Inverter 8051 microcontroller |
| Data: | Set-2006 |
| Citação: | INTERNATIONAL CONFERENCE ON HANDS ON SCIENCE, 3, Braga, Portugal, 2006 - “International Conference on Hands on Science”. [S.l. : s.n., 2006]. ISBN 989-9509-50-7. p. 194-200. |
| Resumo(s): | This paper presents an electromagnet and a switchboard used on a science fair slewing crane described in a separate paper. The electromagnet can lift 50kg loads. The switchboard includes a transformer that powers the electromagnet. It also contains relays, contactors and inverters that allow the operation of the crane three-phase motors using a single-phase power supply. Crane slewing is limited to an 180º angle, for safety reasons. Pressing an emergency button switches off all command circuits. An 8051 microcontroller-based system determines the vertical position of the electromagnet, which cannot be switched off while being on a high position, not even if the emergency button is pressed. |
| Tipo: | Artigo em ata de conferência |
| URI: | https://hdl.handle.net/1822/6076 |
| ISBN: | 989-9509-50-7 |
| Arbitragem científica: | yes |
| Acesso: | Acesso aberto |
| Aparece nas coleções: | DEI - Artigos em atas de congressos internacionais |
