GE 489 - Manual (Page 257)

F IGURE 1–1: S INGLE L INE D IAGRAM ......................................................................................................................................................... 1
F IGURE 2–1: 489 D IMENSIONS ................................................................................................................................................................. 1
F IGURE 2–2: D RAWOUT U NIT S EAL .......................................................................................................................................................... 1
F IGURE 2–3: C ASE AND U NIT I DENTIFICATION L ABELS ............................................................................................................................... 2
F IGURE 2–4: B END U P M OUNTING T ABS ................................................................................................................................................... 3
F IGURE 2–5: P RESS L ATCH TO D ISENGAGE H ANDLE ................................................................................................................................. 3
F IGURE 2–6: R OTATE H ANDLE TO S TOP P OSITION .................................................................................................................................... 4
F IGURE 2–7: S LIDE U NIT OUT OF C ASE .................................................................................................................................................... 4
F IGURE 2–8: T ERMINAL L AYOUT ............................................................................................................................................................... 5
F IGURE 2–9: T YPICAL W IRING D IAGRAM ................................................................................................................................................... 7
F IGURE 2–10: T YPICAL W IRING (D ETAIL ) .................................................................................................................................................. 8
F IGURE 2–11: C ONTROL P OWER C ONNECTION ......................................................................................................................................... 9
F IGURE 2–12: R ESIDUAL G ROUND CT C ONNECTION ............................................................................................................................... 10
F IGURE 2–13: C ORE B ALANCE G ROUND CT I NSTALLATION ..................................................................................................................... 10
F IGURE 2–14: L OOP P OWERED T RANSDUCER C ONNECTION .................................................................................................................... 11
F IGURE 2–15: RTD W IRING ................................................................................................................................................................... 12
F IGURE 2–16: RS485 C OMMUNICATIONS W IRING ................................................................................................................................... 14
F IGURE 2–17: T ESTING THE 489 FOR D IELECTRIC S TRENGTH ................................................................................................................. 15
F IGURE 3–1: 489 LED I NDICATORS .......................................................................................................................................................... 1
F IGURE 3–2: 489 K EYPAD ........................................................................................................................................................................ 2
F IGURE 3–3: GE M ULTILIN W ELCOME S CREEN ......................................................................................................................................... 6
F IGURE 3–4: C OMMUNICATION /C OMPUTER D IALOG B OX ........................................................................................................................... 7
F IGURE 3–5: G RAPH A TTRIBUTE W INDOW – T RENDING ........................................................................................................................... 12
F IGURE 3–6: T RENDING ......................................................................................................................................................................... 13
F IGURE 3–7: T RENDING F ILE S ETUP ....................................................................................................................................................... 13
F IGURE 3–8: W AVEFORM C APTURE ........................................................................................................................................................ 14
F IGURE 3–9: P HASORS .......................................................................................................................................................................... 15
F IGURE 3–10: 489PC E VENT R ECORDER ............................................................................................................................................... 16
F IGURE 4–1: I NADVERTENT E NERGIZATION ............................................................................................................................................. 25
F IGURE 4–2: V OLTAGE R ESTRAINT C HARACTERISTIC .............................................................................................................................. 27
F IGURE 4–3: N EGATIVE S EQUENCE I NVERSE T IME C URVES .................................................................................................................... 28
F IGURE 4–4: D IFFERENTIAL E LEMENTS ................................................................................................................................................... 31
F IGURE 4–5: G ROUND D IRECTIONAL D ETECTION .................................................................................................................................... 32
F IGURE 4–6: N EUTRAL O VERVOLTAGE D ETECTION ................................................................................................................................. 40
F IGURE 4–7: L OSS OF E XCITATION R-X D IAGRAM ................................................................................................................................... 43
F IGURE 4–8: D ISTANCE E LEMENT S ETUP ................................................................................................................................................ 44
F IGURE 4–9: P OWER M EASUREMENT C ONVENTIONS ............................................................................................................................... 45
F IGURE 4–10: T YPICAL T IME -C URRENT AND T HERMAL L IMIT C URVES (ANSI/IEEE C37.96) .................................................................... 55
F IGURE 4–11: 489 S TANDARD O VERLOAD C URVES ................................................................................................................................ 58
F IGURE 4–12: C USTOM C URVE E XAMPLE ............................................................................................................................................... 60
F IGURE 4–13: T HERMAL L IMITS FOR H IGH I NERTIAL L OAD ....................................................................................................................... 61
F IGURE 4–14: V OLTAGE D EPENDENT O VERLOAD C URVES ...................................................................................................................... 62
F IGURE 4–15: V OLTAGE D EPENDENT O VERLOAD P ROTECTION C URVES .................................................................................................. 63
F IGURE 4–16: V OLTAGE D EPENDENT O/L P ROTECTION AT 80% AND 100% V OLTAGE ............................................................................. 64
F IGURE 4–17: T HERMAL M ODEL C OOLING .............................................................................................................................................. 66
F IGURE 4–18: RTD B IAS C URVE ............................................................................................................................................................ 68
F IGURE 4–19: T RIP C OIL S UPERVISION .................................................................................................................................................. 70
F IGURE 4–20: VT F USE F AILURE L OGIC ................................................................................................................................................. 71
F IGURE 4–21: R OLLING D EMAND (15 M INUTE W INDOW ) ......................................................................................................................... 73
F IGURE 4–22: P ULSE O UTPUT ............................................................................................................................................................... 74
F IGURE 7–1: S ECONDARY C URRENT I NJECTION T ESTING .......................................................................................................................... 2
F IGURE 7–2: S ECONDARY I NJECTION S ETUP #2...................................................................................................................................... 12
F IGURE 7–3: S ECONDARY I NJECTION T EST S ETUP #3............................................................................................................................. 15
F IGURE A–1: S TATOR G ROUND F AULT P ROTECTION ................................................................................................................................. 1
F IGURE A–2: P ARALLEL G ENERATORS WITH C OMMON G ROUNDING I MPEDANCE ......................................................................................... 2
F IGURE A–3: G ROUND O VERCURRENT E LEMENT WITH D IFFERENT C URRENT S OURCE S IGNALS ................................................................. 3
F IGURE A–4: G ROUND D IRECTIONAL E LEMENT P OLARITIES AND P LANE OF O PERATION ............................................................................. 3
F IGURE A–5: G ROUND D IRECTIONAL E LEMENT C ONCEPTUAL A RRANGEMENT ............................................................................................ 4
F IGURE B–1: ANSI M ODERATELY I NVERSE C URVES ................................................................................................................................. 1
F IGURE B–2: ANSI N ORMALLY I NVERSE C URVES ..................................................................................................................................... 2
F IGURE B–3: ANSI V ERY I NVERSE C URVES ............................................................................................................................................. 3
F IGURE B–4: ANSI E XTREMELY I NVERSE C URVES .................................................................................................................................... 4
F IGURE B–5: D EFINITE T IME C URVES ....................................................................................................................................................... 5
F IGURE B–6: IAC S HORT I NVERSE C URVES .............................................................................................................................................. 6
F IGURE B–7: IAC I NVERSE C URVES ......................................................................................................................................................... 7