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  • Users: Runsor
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  1. Runsor

    Arc around the commutator

    I would like to know the english term used about an arc burning in an electric motor around the commutator. "Circular arc fault at commutator" or how do you call this phenomena?
  2. Runsor

    ASEA minimum-oil circuit breaker HLR 123/2500

    A colleague of mine is looking after a service manual for an old ASEA minimum-oil circuit breaker HLR 123/2500. Any information is appreciated.
  3. Runsor

    Old Stromberg(ABB) motor protection relay

    I'm trying to understand settings from an old SPAJ 3R5 motor protection relay by Stromberg (nowadays ABB). Where could I get a manual of this old relay? Google gives a hit on an ABB page, but it doesn't work. From the unclear old setting sheet from the customer I read that CT is 800/5 and the...
  4. Runsor

    Slip during motor starting

    Is it possible to approximate the amount of slip of an induction motor during starting without measuring the actual speed? Just the current and voltage measurements and name plate values are available.

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