Method and arrangement for observing the operational status of an electrical device

(19)

(11)

EP 0 928 126 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	04.04.2001 Bulletin 2001/14

(43)	Date of publication A2:
	07.07.1999 Bulletin 1999/27

(21)	Application number: 99100122.3

(22)	Date of filing: 05.01.1999

(51)	International Patent Classification (IPC)⁷: H05B 37/03

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

05.01.1998 FI 980013

(71)	Applicant: Ahlström Sähkötarvikkeet Oy i-VALO
	07970 Ruotsinpyhtää (FI)

(72)	Inventor:
	Aalto, Veijo 13600 Hämeenlinna (FI)

(74)	Representative: HOFFMANN - EITLE
	Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)

(54)	Method and arrangement for observing the operational status of an electrical device

(57) The present invention relates to a method of monitoring and/or controlling the operation status of an electrical apparatus (1) from a distance from the apparatus. Factors having an effect on the various operation statuses of the electrical apparatus, such as various components causing the fault condition, are identified by means of suitable transducers (10) and wirelessly indicated by means of transmitters using electromagnetic signals. The invention also relates to an apparatus performing the method.
Industrial lighting fixtures are an advantageous application of the invention.

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