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100   $a20231206d1989      uy             0
101 0 $aeng
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181   $ctxt$2rdacontent
182   $cc$2rdamedia
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200 10$aANSI/IEEE Std C37.90-1989 $eIEEE Standard for Relays and Relay Systems Associated with Electric Power Apparatus /$fInstitute of Electrical and Electronics Engineers
210  1$aNew York, New York :$cIEEE,$d1989.
215   $a1 online resource (12 pages)
330   $aSuperseded by IEEE Std C37.90-2005 This standard applies to relay systems that protect and control apparatus that generate, and distribute and use electric power. This standard defines service conditions and specifies relay performance requirements and performance information that relay manufacturers shall provide.
517   $aANSI/IEEE Std C37.90-1989: IEEE Standard for Relays and Relay Systems Associated With Electric Power Apparatus
606   $aProtective relays
615  0$aProtective relays.
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