ML17312A175

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Control Wiring Diagram Device Numbers & Definitions. Sheet 20
ML17312A175
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 01/17/1997
From:
EBASCO SERVICES, INC.
To:
Shared Package
ML17312A008 List:
References
Download: ML17312A175 (1)


Text

DEVICE NO.DEFINITION AND FUNCTION{CONT'D)OPENING OPERATION IN AN AUTOMATIC SEQUENCE OR PROTECT IVE RELAY SYSTEM.{T IME-DELAY OPENING IS DEF INED AS T I ME-DELAY DROPOUT OF ARMATURE.)63 LI UID OR P E RELAY IS A RELAY THAT OPERATES ON GIVEN VALUES OF LIQUID OR GAS PRES-SURE OR.ON G I YEN RATES OF C HANGE OF THESE VALUES.SPEC IF IC APPLICATIONS OF PRESSURE SW ITCHES MAY BE IDENT IF IED BY USE OF SUITABLE SUFF IXES, SUCH AS 63-S, MEAN ING SUCT I ON PRESSURE;63-D, MEANING D ISCHARGE PRESSURE, ETC.6%GROUND PROTE TI E REL Y IS A RELAY THAT FUNCTIONS ON FAILURE OF THE INSULAT ION OF A MACH INE, TRANS-FORMER, OR OF OTHER APPARATUS TO GROUND, OR ON FLASHOVER OF A d-c MACH INE TO GROUND.NOTE: THIS FUNCTION IS ASS IGHED ONLY TO A RELAY THAT DETECTS THE FLOW OF CURRENT FROM THE FRAME OF A MACHINE OR ENC LOS-ING CASE OR STRUCTURE OF A PIECE OF APPARATUS TO GROUHD, OR DETECTS A GROUND ON A NOR-MALLYY UNGROUNDED WINDING OR C IRCUIT.IT IS NOT APPLIED TO A DEV ICE CONNECTED IN THE SE-CONDARY C IRC'U IT OF A CURRENT TRANSFORMER, OR IN THE SECONDARY NEUTRAL OF CURRENT TRANSFORMERS, CONNECTED IN THE POWER C IRCUIT OF A NORMAl LY GROUNDED SYSTEM.{NOT TO BE USED FOR LINE OR FEEDER 65~~~Q IS THE ASSEMBLY OF FLUID, ELECTRICAL, OR MECHANICAL CONTROL EQUIPMENT USED FOR REGULATING THE F LOW OF WATER, STEAM, OR OTHER MEDIUM TO THE PRIME MOVER FOR SUCH PURPOSES AS STARTING, HOLD IHG SPEED OR LOAD, OR STOPPING.66 NOTCHING OR JOGG ING DEV ICE IS A DE-V ICE THAT FUNCTIONS TO ALLOW ONLY A SPEC IF IED NUMBER OF OPERAT IONS OF A GIVEM DEV ICE, OR EQUIPMENT.

OR A SPEC IF IED NUMBER OF SUCCESS IVE OPER-AT I ONS W ITH IN A G IYEN T I ME OF EACH OTHER.IT IS ALSO A DEV ICE THAT FUNCTIONS TO ENERGIZE A CIRCUIT PER IOD ICALLY OR FOR FRACTIONS OF S PEC IF I ED T I ME I NTERVA LS, OR THAT IS USED TO PERMIT INTERMITTENT AC-CELERATION OR JOGGING OF A MACHINE AT LOW SPEEDS FOR MECHANICAL POS I-T ION ING.67 A-IRE I MAL OVER URRENT RELAY IS A RELAY THAT FUNCTIONS ON A DE-S IRED VALUE OF a-c OYERCURRENT FLOW ING IN A PREDETERMINED D IREC-T I ON.68 IS A RELAY THAT INI-TIATES A PILOT S IGNAL FOR BLOCKING OF TRIPPIHG ON EXTERNAL FAULTS IN A TRANSMISSION LINE OR IN OTHER APPARATUS UNDER PREDETERMINED CON-DITIONSS, OR COOPERATES WITH OTHER DEV ICES TO BLOCK TRIPPING OR TO BLOCK RECLOS ING ON AN OUT-OF-STEP COND IT ION OR ON POWER SW INGS.IS GEN-ERALLY A TWO-POS ITION, MANUALLY-OPERATED SW ITCH THAT, IN ONE POS I-T ION, PERMITS THE CLOSING OF A.CIRCUIT BREAKER, OR THE PLAC ING OF AN EQUIPMENT INTO OPERATION, AND IN THE OTHER POSITION PREVENTS THE C IRCU I FROM B BR'E~FR O'R THE EQ'Dl PMEHT I I 86)(P)E RATED II~ItIL,.-,.".'EV ICE NO.DEFINITION AND FUNCTION{CONT'D)70~i~IS A VAR IABLE RES ISTAHCE DEY ICE USED IN AH ELECTR IC C IRCU IT, WHICH IS ELECTR ICALLY OPERATED OR HAS OTHER ELECTR ICAL ACCESSOR IES, SUCH AS AUX ILIARY, POS ITION, OR LIMIT SWITCHES.7I FOR AUX I L IARY CONTACT DES I GMAT I ONS SEE DEV ICE NUMBER 52.ID A-L RELAY IS A RELAY THAT OPERATES ON GIVEN VALUES OF L IQLI ID OR GAS LEVEL OR OM G IYEH RATES OF CHANGE OF THESE VALLIES.SPEC IF IC APPLICATIONS OF LEVEL SWITCHES MAY BE IDENT IF IED BY USE OF SUITABLE SUFF IXES, SUCH AS 71-SO, MEAH ING LEVEL OF SEAL OIL;71-ST, MEAN ING LEYEL OF STORAGE TAMK, ETC.72 IS A C IRCU IT BREAKER THAT IS USED TO CLOSE AND INTERRUPT A d-c POWER C IRCU IT UNDER NORMAL COND IT IOHS OR TO INTERRUPT THIS C IRCU IT UNDER FAULT OR EMER-GENCY COND IT IONS.FOR AUX I L IARY CONTACT DES I GNAT I ONS SEE DEV ICE NUMBER 52~73 LOAD-RES ISTOR CONTACTOR IS A CONTAC-TOR THAT IS USED TO SHUNT OR INSERT A STEP OF LOAD LIMITING, SHIFTING, OR INDICATING RESISTANCE IN A POWER CIRCUIT, OR TO SWTICH A SPACE HEATER IN C IRCU IT, OR TO SW ITCH A L I GHT OR REGENERAT IVE LOAD RES ISTOR OF A POWER RECT IF IER OR OTHER MACH INE IN AND OUT OF CIRCLIIT.7%ALARM RELAY IS A RELAY OTHER THAN AN ANNUNC IATOR, AS COVERED UNDER DEY ICE FUNCTION 30, THAT IS USED TO OPERATE, OR TO OPERATE IN CONNECTION WITH, A DEV I CE NO.DEFINITION AND FUNCTION (CONT'D)DEVICE NO.DEFINITION AND FUNCTION (CONT'D)V ISUAL OR AUD IBLE ALARM.75 POS ITIOM CHANGING MECHANISM IS A MECH-AN ISM THAT IS USED FOR MOY ING A MA IN DEV ICE FROM OHE POSITION TO ANOTHER IH AN EQU!PMENT: AS FOR EXAMPLE, SH IFT ING A REMOYABLE C IRCU IT BREAKER UNIT TO AHD FROM THE CONMECTED, D ISCONNECTED, AND TEST POSITIONS.76 D-0 ER URREHT RELAY IS A RELAY THAT FUNCTIONS WHEN THE CURRENT IN A d-c C IRCU IT EXCEEDS A G I VEN VALUE.77 PULSE TRANSMITTER IS USED TO GENERATE AHD TRAHSMIT PULSES OVER A TELEMETER-ING OR PILOT-WIRE CIRCUIT TO THE RE-MOTE IND ICATING OR RECE IV ING DEV ICE.78 PHASE-AHGLE MEASUR IH R PROTECT IVE RELAY IS A RELAY THAT FUNCTIONS AT A PREDETERMINED PHASE ANGLE BETWEEN TWO YOLTAGES OR BETWEEN TWO CURRENTS OR BETWEEN VOLTAGE AND CURRENT.79 A-RE S A RELAY THAT CONTROLS THE AUTOMAT IC REC LOS IHG AHD LOCKIHG OUT OF AH a-c CIRCUIT INTER-RUPTER.80 LI UID 0 S FL ELAY IS A RELAY THAT OPERATES OH GIVEN VALUES OF LIQUID OR GAS FLOW OR ON GIYEN RATES OF CHANGE OF THESE VALUES~.SPECIFIC APPLICATIONS OF FLOW SWITCHES MAY BE IDENT IF IED BY USE OF SU ITABLE SUFF IXES, SUCH AS BO-LO, MEANING FLOW OF LUBR ICAT ING Ol L;80-W, MEANING FLOW OF WATER, ETC.BI FRE UENCY.RELAY IS A RELAY THAT FUNC-TIONSS ON A PREDETERMINED YALUE OF FREQUENCY{E ITHER UNDER OR OVER OR ON (>tf~'I$(I'Ig(9~PP, 0{-w p~y ELE C DR H scaLE~cH.DaTE H Y 5, 197Z appRoyE+/g 7;~i';/,:~EBASCO SERYICES INCORPORATED NEW YDRK FLORIDA POV/ER 8 L I GHT CO.HUTCHINSON ISLAND PLANT-UNlT NO I CONTROL WIRING DlAGRAM DEVICE NUMBERS 4 DE F IQITIOkl5 8770-B-327 sHaE>2Q.9lolZ.~.aaaa Wa,,