IEVref:448-15-12ID:
Language:enStatus: Standard
Term: intertripping underreach protection
Synonym1: IUP (abbreviation)
[Preferred]
Synonym2: direct underreaching transfer trip protection (US)
[Preferred]
Synonym3: DUTT (US) (abbreviation)
[Preferred]
Symbol:
Definition: protection, generally distance protection, using telecommunication, with underreach protection at each section end and in which a signal is transmitted when a fault is detected by the underreach protection. Receipt of the signal at the other end initiates tripping independent of the local protection

See figure 448-6.

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Publication date:1995-12
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Internal notes:2012-12-18: Corrected for conformity with standard: terms and synonyms correctly structured; source content transferred to definition field. JGO
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