ABB REF 542 Plug Protection Setting Change - CR4 Discussion Thread

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Anonymous Poster	ABB REF 542 Plug Protection Setting Change 11/13/2010 5:49 PM
	My work place is using ABB REF 542 plug protection relay for high voltage motor feeders protection, I wish to use the magnetic key to change the thermal over load (temperature) from 130 Deg C to 145 deg C, because the motor full load operating temperature is between 110 to 120 Deg C and any increases of process load or heavy rain fall cause the motor trip . Can someone please advice on step to step change the protection setting?
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timelord Commentator Join Date: Oct 2010 Location: Quantum Dimension Posts: 85 Good Answers: 1	#1 Re: ABB REF 542 plug protection setting change 11/13/2010 8:27 PM
	hey guest You are talking about an ABB 542 plug , isn't it an ABB 542 plus ? Take a look here , hoover over the load PDF's they have some detailed numbering which is on your relay. The ABB REF 542 is superseded , the adjustments of the settings should be the same.Otherwise you have to get in touch with Asea ABB REF 542 plus L8rz.. T L __________________ Humans use 10% of their mind , WE take the rest
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