KLF loss-of-field relay 50/60 hertz

The KLF relay is a single-phase relay connected to the ac side of a synchronous machine and contains three units connected so that the operation of two units sounds an alarm warning the operator of a low excitation condition, and the additional operation of the third sets up the trip circuit. The relay can be applied without modification to all types of synchronous machines, such as turbo-generators, water wheel generators or synchronous condensers.  

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  • Long production life, ease of application and reliable protection
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  • 12 year warranty
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