location
- fournais a/s
- Enrumvej 7
- DK - 2942 Skodsborg
- Telefon: +45 45 89 04 45
Akslen tårnet er forpligtet til at tage minearbejderne op og ned akslen.
Drevet er en stor Elektrisk motordrevet af en frekvensomformer.
For at sikre maksimal sikkerhed bruges it-systemet som netværkssystem her. Det overvåges via en ISOMETER® .
Download | Produktoversigt – Fejlstrømsbeskyttelse |
Download | Teknisk papir – Elektrisk sikkerhed i hjælpekredse |
DS/EN 50178
Elektronisk udstyr til brug i kraftinstallationer
Ventilation af underjordiske miner er et afgørende kriterium for deres driftssikkerhed.
En afbrydelse af ventilationen er potentielt livstruende for minearbejderne, omfatter en øget brandrisiko og svigt i produktionssystemet.
Det betyder, at kontinuerlig residual strømovervågning ved hjælp af RCM’er er afgørende, da den registrerer eventuelle farlige ændringer i strømforsyningen med det samme.
Dræning af underjordiske miner er utrolig vigtigt. Enhver afbrydelse af dræn systemet øger risikoen for, at skakter fyldes op med vand, og at mennesker bringes i fare.
Fra dette perspektiv er kontinuerlig overvågning med ISOMETER® eller RCM´s residuale aktuelle overvågningssystemer afgørende.
De anerkender straks farlige ændringer i strømforsyningen.
Elmotorer er generelt ansat til transportbånd, der anvendes i minedrift, som er drevet af bløde startere eller frekvensomformere.
Men disse genererer kritiske harmoniske vibrationer og jævnstrøms strømme, som normalt ikke ville være til stede i fodring AC-systemet.
Med regelmæssige RCD eller simpel isolering skærme (f. eks 3 lampe metode eller 2 voltmeter proces), kan dette ikke overvåges med den nødvendige præcision.
Der er behov for moderne overvågningsudstyr, som hurtigt kan genkende og rapportere disse problemer.
Nogle standarder endda kræve en hurtig nedlukning, som kan opnås ved hjælp af Bender isolering overvågning enheder.
Download | Produktoversigt – Fejlstrømsbeskyttelse |
Download | Teknisk papir – Elektrisk sikkerhed i hjælpekredse |
DS/EN 50178
Elektronisk udstyr til brug i kraftinstallationer
DIN VDE 0168
Errichten Elektrischer Anlagen i Tagebauen, Steinbrüchen und ähnlichen Betrieben
Køretøjer i minedrift er elektrisk drevne. Disse trådløse køretøjer har brug for overvågning af jordforbindelse leder i kablet (pilot wire overvågning).
Bender tilbyder en række overvågningsmuligheder, afhængigt af kravene til wire overvågning eller fejlstrøm/jord leder overvågning.
Download | Brochure – Minedrift |
DIN en 1889-1
Maskiner til underjordiske miner-mobile maskiner, der arbejder under jorden-sikkerhed-Del 1: gummi tyrede køretøjer
DIN en ISO 19225
Underjordiske mine maskiner – mobile udvinding maskiner i ansigtet – sikkerhedskrav til Shearer læssere og plov systemer
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