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UPDATE HISTORY Date Reason for change 13 15-Sep-11 --- --- Revised for replacement central library system 14 25-Nov-11 C, S, A & M --- Numbers added for updated Arc Suppression Control scheme 15 24-May-12 C --- Added control for reset of CB Close Inhibit (for EPN) 16 8-Apr-13 C, S, A & M --- 17 22-Aug-14 A -- Various alarms and notes 18 10-Apr-15 A, M --- Added Hydran CO alarms and measurements 19 24-Jul-15 A X965 Added blocking sent 5-May-16 C, S --- Disconnector/e-sw namings equating to Main and Reserve reversed. 20 24-May-16 A X751-5 Additional Miscellaneous alarms 21 1-Nov-16 A X591 added Cooling Faulty Trip Alarm 30-Jan-17 A X593 Abnormal Pressure 30-Jan-17 A X595 Conservator bag leakage trip 14-Jun-17 A X597 Leak detected 14-Jun-17 A X599 Water temperature high Version Number Category (C, S, A, M or Ferrule number analogues
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Page 1: library.ukpowernetworks.co.uklibrary.ukpowernetworks.co.uk/library/asse… · XLS file · Web view · 2017-10-24Line B intertrip supply faulty Aux transformer buchholz gas Tap-changer

UPDATE HISTORY

Date Reason for changeChanged by

13 15-Sep-11 --- --- Revised for replacement central library system Brian J Rodgers14 25-Nov-11 C, S, A & M --- Numbers added for updated Arc Suppression Control scheme Brian J Rodgers15 24-May-12 C --- Added control for reset of CB Close Inhibit (for EPN) Brian J Rodgers16 8-Apr-13 C, S, A & M --- Added alarm for manual sync override, black start functions, ASC analogues Brian J Rodgers17 22-Aug-14 A -- Various alarms and notes Brian J Rodgers18 10-Apr-15 A, M --- Added Hydran CO alarms and measurements Brian J Rodgers

1924-Jul-15 A X965 Added blocking sent Brian J Rodgers5-May-16 C, S --- Disconnector/e-sw namings equating to Main and Reserve reversed. Brian J Rodgers

20 24-May-16 A X751-5 Additional Miscellaneous alarms Brian J Rodgers21 1-Nov-16 A X591 added Cooling Faulty Trip Alarm David Gable

30-Jan-17 A X593 Abnormal Pressure David Gable30-Jan-17 A X595 Conservator bag leakage trip Brian J Rodgers14-Jun-17 A X597 Leak detected David Gable14-Jun-17 A X599 Water temperature high David Gable

Version Number

Category (C, S, A, M or Com)

Ferrule number

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Controls 2

Ferrule CONTROL Description Polarity Notes Amended By(Date)

W1 CB open pos Equates to NG use of W461W2 CB open neg Equates to NG use of W462W3 CB close (direct, if sync check) pos Equates to NG use of W463W4 CB close neg Equates to NG use of W464W5 Sync select pos Equates to NG use of W465W6 Sync select neg Equates to NG use of W466W7 Manual sync check pos Equates to NG use of W467, in LPN conn. to W465W9 CB close via sync check pos Equates to NG use of W469

W10 CB close via sync check neg 23-Nov-07 BJR

W11 Main bar disconnector open pos N.B. Main now equates to Upper/Rear/Top 5/5/2016 BJRW12 Main bar disconnector open negW13 Main bar disconnector close posW14 Main bar disconnector close neg

W15 Reserve bar disconnector open pos N.B. Reserve now equates to Lower/Front/Bottom 5/5/2016 BJRW16 Reserve bar disconnector open negW17 Reserve bar disconnector close posW18 Reserve bar disconnector close neg

W19 Line A disconnector open posW20 Line A disconnector open negW21 Line A disconnector close posW22 Line A disconnector close neg

W23 Line B disconnector open posW24 Line B disconnector open negW25 Line B disconnector close posW26 Line B disconnector close neg

W27 SEF out of service pos OUT equates to OFFW28 SEF out of service negW29 SEF in service pos IN equates to ONW30 SEF in service neg

W31 Auto-reclose out of service pos OUT equates to OPEN or OFFW32 Auto-reclose out of service neg also used for Auto-switching out of serviceW33 Auto-reclose in service pos IN equates to CLOSE or ON

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Controls 3

Ferrule CONTROL Description Polarity Notes Amended By(Date)

W34 Auto-reclose in service neg also used for Auto-switching in service

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Controls 4

Ferrule CONTROL Description Polarity Notes Amended By(Date)

Additional for IOTA auto-close Using W31 as control common posW36 Reset scheme negW38 Select BC1 negW40 Select BC2 negW42 Select RBS negW44 Select FBS negW46 Select auto-trip negW48 Select auto-close negW50 Clear selection neg

W51 3% reduction off pos Also used for Voltage Reduction Control Common Positive 4/3/2008 BJRW52 3% reduction off neg Also used for common Reset 4/3/2008 BJRW53 3% reduction on posW54 3% reduction on negW55 6% reduction off pos Separate resets used only in LPN older schemesW56 6% reduction off neg Separate resets used only in LPN older schemesW57 6% reduction on posW58 6% reduction on neg

W61 Select automatic tapping pos pos Also used for Tapping Control Common Positive 4/3/2008 BJRW62 Select automatic tapping neg neg Also used for Tap Lock reset 4/3/2008 BJRW63 Select remote tapping pos posW64 Select remote tapping neg neg Also used for Tap Lock 4/3/2008 BJRW65 Raise tap pos posW66 Raise tap neg negW67 Lower tap pos posW68 Lower tap neg neg

W71 Reset trip relay posW72 Reset trip relay neg

W73 Reset Bus Zone trip relay posW74 Reset Bus Zone trip relay neg

W75 Auto-reclose reset posW76 Auto-reclose reset neg

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Controls 5

Ferrule CONTROL Description Polarity Notes Amended By(Date)

W77 LF tripping out of service pos OUT equates to OFFW78 LF tripping out of service negW79 LF tripping in service pos IN equates to ONW80 LF tripping in service neg

W81 Main protection out of service pos OUT equates to OFFW82 Main protection out of service negW83 Main protection in service pos IN equates to ONW84 Main protection in service neg

W85 Unit protection out of service pos OUT equates to OFFW86 Unit protection out of service negW87 Unit protection in service pos IN equates to ONW88 Unit protection in service neg

W89 Busbar Protection out of service pos OUT equates to OFFW90 Busbar Protection out of service negW91 Busbar Protection in service pos IN equates to ONW92 Busbar Protection in service neg

W93 Generator AVC disable pos DISABLE equates to OFF 15-Aug-07 BJRW94 Generator AVC disable neg 15-Aug-07 BJRW95 Generator AVC enable pos ENABLE equates to ON 15-Aug-07 BJRW96 Generator AVC enable neg 15-Aug-07 BJR

W97 Settings change out of service pos 9-Nov-07 BJRW98 Settings change out of service neg 9-Nov-07 BJRW99 Settings change in service pos 9-Nov-07 BJR

W100 Settings change in service neg 9-Nov-07 BJR

W101 Select EDF control option pos 21-Nov-07 BJRW102 Select EDF control option neg Also for Actuate Neg on automatic "take control" scheme 4-Feb-08 BJRW103 Select Third Party Control option pos 21-Nov-07 BJRW104 Select Third Party Control option neg 21-Nov-07 BJR

W105 Distance Zone 1 Extension out pos 3-Jan-08 BJRW106 Distance Zone 1 Extension out neg 3-Jan-08 BJRW107 Distance Zone 1 Extension in pos 3-Jan-08 BJR

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Controls 6

Ferrule CONTROL Description Polarity Notes Amended By(Date)

W108 Distance Zone 1 Extension in neg 3-Jan-08 BJR

W109 Cooling off pos Remote operation of fans and pumps 2-Apr-08 BJRW110 Cooling off neg 2-Apr-08 BJRW111 Cooling on pos 2-Apr-08 BJRW112 Cooling on neg 2-Apr-08 BJR

W113 Fire alarm silence pos Remote operation of fire protection audible alarm 6-Jun-08 BJRW114 Fire alarm silence neg 6-Jun-08 BJRW115 Fire alarm reset pos 6-Jun-08 BJRW116 Fire alarm reset neg 6-Jun-08 BJR

W117 Generation inhibited pos INHIBITED equates to OFF 11-Aug-08 BJRW118 Generation inhibited neg 11-Aug-08 BJRW119 Generation restored pos RESTORED equates to ON 11-Aug-08 BJRW120 Generation restored neg 11-Aug-08 BJR

W121 Intertrip Pass On out pos Also for INTERTRIP DISABLE 1-Sep-08 BJRW122 Intertrip Pass On out neg 1-Sep-08 BJRW123 Intertrip Pass On in pos Also for INTERTRIP ENABLE 1-Sep-08 BJRW124 Intertrip Pass On in neg 1-Sep-08 BJR

W125 Blocking out pos 23-Sep-08 BJRW126 Blocking out neg 23-Sep-08 BJRW127 Blocking in pos 23-Sep-08 BJRW128 Blocking in neg 23-Sep-08 BJR

W129 Sequence Closing out of service pos OUT equates to OFF 17-Sep-09 BJRW130 Sequence Closing out of service neg 17-Sep-09 BJRW131 Sequence Closing in service pos IN equates to ON 17-Sep-09 BJRW132 Sequence Closing in service neg 17-Sep-09 BJR

W133 Switching warning klaxon initiation pos Initially for Littlebrook B, despite arguments against it as unnecessary 29-Mar-10 BJRW134 Switching warning klaxon initiation neg 29-Mar-10 BJR

W135 ASC Automatic tuning disable pos 11/25/2011 BJRW136 ASC Automatic tuning disable neg 11/25/2011 BJRW137 ASC Automatic tuning enable pos 11/25/2011 BJRW138 ASC Automatic tuning enable neg 11/25/2011 BJR

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Controls 7

Ferrule CONTROL Description Polarity Notes Amended By(Date)

W139 ASC Increase coil setting pos 11/25/2011 BJRW140 ASC Increase coil setting neg 11/25/2011 BJRW141 ASC Decrease coil setting pos 11/25/2011 BJRW142 ASC Decrease coil setting neg 11/25/2011 BJR

W143 CB Close Inhibit Reset pos Added initially for EPN (Kennett Primary) 5/24/2012 BJRW144 CB Close Inhibit Reset neg 5/24/2012 BJR

W145 Contactor open control pos 2/26/2013 BJRW146 Contactor open control neg 2/26/2013 BJRW147 Contactor close control pos 2/26/2013 BJRW148 Contactor close control neg 2/26/2013 BJR

W149 Main bar earth switch open pos N.B. Main now equates to Upper/Rear/Top 11/28/2016 BJRW150 Main bar earth switch open neg 11/28/2016 BJRW151 Main bar earth switch close pos 11/28/2016 BJRW152 Main bar earth switch close neg 11/28/2016 BJR

W153 Reserve bar earth switch open pos N.B. Reserve now equates to Lower/Front/Bottom 11/28/2016 BJRW154 Reserve bar earth switch open neg 11/28/2016 BJRW155 Reserve bar earth switch close pos 11/28/2016 BJRW156 Reserve bar earth switch close neg 11/28/2016 BJR

W157 Line A earth switch open pos 11/28/2016 BJRW158 Line A earth switch open neg 11/28/2016 BJRW159 Line A earth switch close pos 11/28/2016 BJRW160 Line A earth switch close neg 11/28/2016 BJR

W161 Line B earth switch open pos 11/28/2016 BJRW162 Line B earth switch open neg 11/28/2016 BJRW163 Line B earth switch close pos 11/28/2016 BJRW164 Line B earth switch close neg 11/28/2016 BJR

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Status Indications 8

Ferrule Plant Description Status Dwg ref Notes Amended By(Date)

X1 Indication common pos May also be used for alarmsX2 Indication common neg If required

X3 Circuit breaker Open AX5 ClosedX7 Out of service Racked outX9 In service Racked in

X11 Main bar disconnector Open B N.B. Main now equates to Upper/Rear/Top Also bus section "left-hand" busbar disconnector 5-May-16 BJRX13 Closed

X15 Reserve bar disconnector Open C N.B. Reserve now equates to Lower/Front/Bottom Also bus section "right-hand" busbar disconnector 5-May-16 BJRX17 Closed

X19 Line A disconnector Open D Used for Circuit disconnector on 11kV or 33kVX21 Closed Also used for transformer A disconnector on banked circuit 1-Feb-08 BJR

X23 Line B disconnector Open E Also used for transformer B disconnector on banked circuit 1-Feb-08 BJRX25 Closed

X27 Line A earth switch Open F Used for Circuit earth switch on 11kV or 33kVX29 Closed

X31 Line B earth switch Open GX33 Closed

X35 CB earth switch (line side) Open HX37 Closed

X39 CB e/switch Open J 5-May-16 BJRX41 (Main bar disconnector) Closed N.B. Main now equates to Upper/Rear/Top Also bus sect. "left-hand" busbar disc. earthed

X43 CB e/switch Open K 5-May-16 BJRX45 (Reserve bar disconnector) Closed N.B. Reserve now equates to Lower/Front/Bottom Also bus sect. "right-hand" busbar disc. earthed

X47 Main bar earth switch Open L N.B. Main now equates to Upper/Rear/Top 4-Mar-08 BJRX49 Closed

X51 Reserve bar earth switch Open M N.B. Reserve now equates to Lower/Front/Bottom 4-Mar-08 BJRX53 Closed

X55 Line earth switch Open N Far end of the circuitX57 Closed

X59 Transformer disconnector (HV) Open PX61 Closed

X63 Transformer earth switch (HV) Open QX65 Closed

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Status Indications 9

Ferrule Plant Description Status Dwg ref Notes Amended By(Date)

X67 Transformer disconnector (LV) Open RX69 Closed

X71 Transformer earth switch (LV) Open SX73 Closed

X75 Sensitive earth fault protn Out of service OffX77 In service On

X79 Auto-reclose Out of service Also Auto-close, Auto-switching and DAR OffX81 In service On

X83 Unit protection Out of serviceX85 In service

X87 Distance protection Out of serviceX89 In service

X91 LF tripping Out of serviceX93 In service

X95 Interlock Out of service Off 9-Jan-07 BJRX97 In service On 9-Jan-07 BJR

Voltage ControlX101 3% reduction offX103 3% reduction onX105 6% reduction offX107 6% reduction onX109 Automatic control selected 25-May-10 BJRX111 Manual tapping selected 25-May-10 BJRX113 Tap-changer on local control (May use X501 as common pos) 3-Apr-08 BJRX115 Tap change in progress (May use X501 as common pos) 3-Apr-08 BJR

Check sync selectionX117 Check synchronising Not selected 11-Aug-08 BJRX119 Selected 11-Aug-08 BJR

Additional for IOTA auto-closeX121 Auto-close selectedX123 Auto-trip selectedX125 BC1 selectedX127 BC2 selectedX129 BS1 selectedX131 BS2 selected

X133 Sequence Closing Out of service 17-Sep-09 BJRX135 In service 17-Sep-09 BJR

X137 Contactor Open Spare 26-Feb-13 BJR

Also Tap freeAlso Tap locked

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Status Indications 10

Ferrule Plant Description Status Dwg ref Notes Amended By(Date)

X139 Closed Spare 26-Feb-13 BJR

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Status Indications 11

Ferrule Plant Description Status Dwg ref Notes Amended By(Date)

X141 LVAC Supply Selection Main selected 6-Aug-09 BJRX143 Standby selected 6-Aug-09 BJR

X145 Switching klaxon operating Running Added for Littlebrook B, despite arguments against as non-standard and not necessary 29-Mar-10 BJR

X147 ASC Automatic tuning Out of service Equivalent to OFF or DISABLED Added for EPN 25-Nov-11 BJRX149 In service Equivalent to ON or ENABLED Added for EPN 25-Nov-11 BJR

X151 Main protection Out of service Off 29-Jan-07 BJRX153 In service On 29-Jan-07 BJR

X155 Blocking In test Off 29-Jan-07 BJRX157 Main intertrip Out of service Off 29-Jan-07 BJRX159 Operational intertrip Out of service Off 29-Jan-07 BJR

X161 Generator AVC Out of service Equivalent to OFF or DISABLED 15-Aug-07 BJRX163 In service Equivalent to ON or ENABLED 15-Aug-07 BJR

X165 Settings change Out of service 9-Jan-07 BJRX167 In service 9-Nov-07 BJR

X169 EDFE/Third Party control option EDF selectedX171 3rd Party selected

X173 Fire damper OpenX175 Closed

X177 Fan Not runningX179 Running

X181 Distance Zone 1 extension Out of service 3-Jan-08 BJRX183 In service 3-Jan-08 BJR

X185 Pump Not running 2-Apr-08 BJRX187 Running 2-Apr-08 BJR

X189 Generation Inhibited Equivalent to OFF or OUT OF SERVICE 11-Aug-08 BJRX191 Restored Equivalent to ON or IN SERVICE 11-Aug-08 BJR

X193 Intertrip Pass On Out of service 1-Sep-08 BJRX195 In service 1-Sep-08 BJR

X197 Blocking Out of service 23-Sep-08 BJRX199 In service 23-Sep-08 BJR

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Alarms 12

Ferrule ALARM Description Notes Amended By(Date)

SWITCHGEAR

X201 Alarm common positive (If supplied separately from X1)X203 Trip circuit faultyX205 CB springs not charged CB closing spring dischargedX207 CB chamber SF6 pressure falling Abbreviate using standard zone referenceX209 CB chamber SF6 pressure low Abbreviate using standard zone referenceX211 Main bar disconnector chamber SF6 pressure falling Abbreviate using standard zone reference (Main=Upper/Rear/Top) Also Busbar Chamber SF6 pressure falling 5-May-16 BJRX213 Main bar disconnector chamber SF6 pressure low Abbreviate using standard zone reference (Main=Upper/Rear/Top) Also Busbar Chamber SF6 pressure low 5-May-16 BJRX215 Reserve bar disconnector chamber SF6 pressure falling Abbreviate using standard zone reference (Reserve=Lower/Front/Bottom) 5-May-16 BJRX217 Reserve bar disconnector chamber SF6 pressure low Abbreviate using standard zone reference (Reserve=Lower/Front/Bottom) 5-May-16 BJRX219 Busbar disconnector "tee-point" chamber SF6 pressure falling Abbreviate using standard zone referenceX221 Busbar disconnector "tee-point" chamber SF6 pressure low Abbreviate using standard zone referenceX223 Line side "tee-point" chamber SF6 pressure falling Abbreviate using standard zone referenceX225 Line side "tee-point" chamber SF6 pressure low Abbreviate using standard zone referenceX227 Line A disconnector chamber SF6 pressure falling Abbreviate using standard zone referenceX229 Line A disconnector chamber SF6 pressure low Abbreviate using standard zone referenceX231 Line B disconnector chamber SF6 pressure falling Abbreviate using standard zone referenceX233 Line B disconnector chamber SF6 pressure low Abbreviate using standard zone referenceX235 VT chamber SF6 pressure falling Abbreviate using standard zone referenceX237 VT chamber SF6 pressure low Abbreviate using standard zone referenceX239 CB low gas pressure lockoutX241 CB close lockout Or "CB close not available" 26-Feb-08 BJRX243 CB lockout Or "CB failed to close" 26-Feb-08 BJRX245 VT fuse failed Or "VT MCB tripped"X247 MCB operatedX249 Disconnector motor protection tripX251 Local control selected Control selected to operation at plantX253 Standby control selected Control selected to operate at standby control panel or relay panel.X255 Liveline selectedX257 Auxiliary switch repeat relay faulty 12-Dec-06 BJRX259 Main bar disconnector chamber SF6 pressure high Abbreviate using standard zone reference (Main=Upper/Rear/Top) 5-May-16 BJRX261 Reserve bar disconnector chamber SF6 pressure high Abbreviate using standard zone reference (Reserve=Lower/Front/Bottom) 5-May-16 BJRX263 Busbar disconnector "tee-point" chamber SF6 pressure high Abbreviate using standard zone reference 12-Dec-06 BJRX265 Line disconnector chamber SF6 pressure high Abbreviate using standard zone reference 12-Dec-06 BJRX267 Spring charge faulty 12-Jan-07 BJRX269 Spring charge motor trip 29-Jan-07 BJRX271 Spring charge motor overrun 29-Jan-07 BJRX273 Gas monitoring equipment faulty 29-Jan-07 BJRX275 Discharge detected 11-Aug-08 BJRX277 Circuit breaker in maintenance mode 11-Aug-08 BJRX279 SF6 low pressure trip 11-Aug-08 BJRX281 Check sync selected to standby control 11-Aug-08 BJRX283 Check sync in use If required 25-Sep-09 BJRX285 Circuit Breaker common alarm Covers unusual alarms from the circuit breaker mechanism 18-Jan-11 BJRX287 Busbar earth access selected For Siemens double busbar switchgear 6-Jun-11 BJRX289 Manual sync check overridden 6-Aug-12 BJRX291 DAR/Sync check relay supply faulty 6-Aug-12 BJRX293 Main busbar chamber SF6 pressure falling Abbreviate using standard zone reference (Main=Upper/Rear/Top) 5-May-16 BJRX295 Main busbar chamber SF6 pressure low Abbreviate using standard zone reference (Main=Upper/Rear/Top) 5-May-16 BJRX297 Reserve busbar chamber SF6 pressure falling Abbreviate using standard zone reference (Reserve=Lower/Front/Bottom) 5-May-16 BJRX299 Reserve busbar chamber SF6 pressure low Abbreviate using standard zone reference (Reserve=Lower/Front/Bottom) 5-May-16 BJR

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Alarms 13

Ferrule ALARM Description Notes Amended By(Date)

PROTECTION

X301 Alarm common positive (If supplied separately)X303 EHV feeder protection operated 3-Jan-08 BJRX305 Feeder protection operatedX307 "Line A" main protection operated 3-Jan-08 BJRX309 "Line B" main protection operated 3-Jan-08 BJRX311 Protection trip relay operated Also for HV trip relay operatedX313 Transformer protection operatedX315 Unbalanced load Phase unbalanced ??X317 Earth faultX319 Auxiliary supervision supply faultyX321 VT supply faultyX323 Protection relay faultyX325 Back-up protection relay faultyX327 Distance protection relay faultyX329 Distance protection operated 29-Jan-07 BJRX331 Unit protection relay faultyX333 Unit protection operated 29-Jan-07 BJRX335 Pilots faultyX337 Intertrip faulty Intertrip system faulty for SPN 8-Jan-07 BJRX339 Line B intertrip relay faulty Intertrip equipment faulty for SPN 8-Jan-07 BJRX341 Intertrip sent Use A or B suffix for banked circuits 9-Aug-07 BJRX343 Intertrip received Use A or B suffix for banked circuits Intertripped operated, if send/receive 9-Aug-07 BJRX345 Intertrip supply faulty Intertrip power faulty for SPN 8-Jan-07 BJRX347 Line B intertrip supply faultyX349 Auto-(re)close locked out Also Auto-close, Auto-switching and DARX351 Auto-(re)close failed Also Auto-close, Auto-switching and DAR Auto-close inhibited for LPN IOTA scheme 1-Feb-13 BJRX353 Fault thrower operatedX355 Fault thrower out of serviceX357 Circuit Breaker Fail protection out of service 12-Dec-06 BJRX359 Protection Supply No.1 Faulty 22-Sep-09 BJRX361 Protection Supply No.2 faulty 22-Sep-09 BJRX363 Auto-(re)close on local control Also Auto-close, Auto-switching and DAR 19-Dec-06 BJRX365 Auto-(re)close in progress Also Auto-close, Auto-switching and DAR Added for Rayleigh 132kV 29-Dec-06 BJRX367 Auto-(re)close complete Also Auto-close, Auto-switching and DAR Added for Rayleigh 132kV 29-Dec-06 BJRX369 Back-up protection operated Added for Rayleigh 132kV 29-Dec-06 BJRX371 Interlocked overcurrent protn operated Added for Rayleigh 132kV 29-Dec-06 BJRX373 Intertrip circuit no. 1 out of service Intertrip circuit no. 1 off Added for SPN systems 8-Jan-07 BJRX375 Intertrip circuit no. 2 out of service Intertrip circuit no. 2 off Added for SPN systems 8-Jan-07 BJRX377 Intertrip channel 1 in test Added for SPN systems 8-Jan-07 BJRX379 Intertrip channel 2 in test Added for SPN systems 8-Jan-07 BJRX381 Intertrip message failure Added for SPN systems 8-Jan-07 BJRX383 Intertrip input frequency faulty Added for SPN systems 8-Jan-07 BJRX385 Private wire 1 signal level low 3-Jan-08 BJRX387 Private wire 2 signal level low 3-Jan-08 BJRX389 Interlock faulty Added for SPN systems 9-Jan-07 BJRX391 Pilot supervision supply faultyX393 Protection comms channel faultyX395 Blocking system faultyX397 Blocking receivedX399 Back trip supply faulty Also Circuit breaker fail protection supply faulty/blocking scheme supply faulty 5-Jun-07 BJR

Or Main Protection (Distance) Zone 1 operatedOr (Common) main protection operatedOr Main Protection (Distance) Zone 2 operatedOr Main Protection (Distance) Zone 3 operated

Or Reactor protection operated

Or "Main protection relay faulty"

Or Line A intertrip relay faulty; also Intertrip Equipt Major Fault

Or Line A intertrip supply faulty

Or Main protection supply faultyOr Back-up protection supply faulty

Or VF signal level fallingOr VF signal level low

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Alarms 14

Ferrule ALARM Description Notes Amended By(Date)

BUS ZONE PROTECTION

X401 Alarm common positive (If supplied separately)X403 Bus Zone 1 protection operatedX405 Bus Zone 1 trip relay operatedX407 Reserve Bus Zone 1 protection operatedX409 Bus Zone 2 protection operatedX411 Bus Zone 2 trip relay operatedX413 Reserve Bus Zone 2 protection operatedX415 Bus Zone 3 protection operatedX417 Bus Zone 3 trip relay operatedX419 Reserve Bus Zone 3 protection operatedX421 Main Bus Zone 4 protection operatedX423 Reserve Bus Zone 4 protection operatedX425 Main Bus Zone 5 protection operatedX427 Reserve Bus Zone 5 protection operatedX429 Busbar protection trip relay operatedX431 Busbar protection supply faultyX433 Alarm supply faultyX435 Main 1 busbar protn faultyX437 Reserve 1 busbar protn faultyX439 Main 2 busbar protn faultyX441 Reserve 2 busbar protn faultyX443 Main 3 busbar protn faultyX445 Reserve 3 busbar protn faultyX447 Main 4 busbar protn faultyX449 Reserve 4 busbar protn faultyX451 Main 5 busbar protn faultyX453 Reserve 5 busbar protn faultyX455 Main 1 busbar protn out of serviceX457 Reserve 1 busbar protn out of serviceX459 Main 2 busbar protn out of serviceX461 Reserve 2 busbar protn out of serviceX463 Main 3 busbar protn out of serviceX465 Reserve 3 busbar protn out of serviceX467 Main 4 busbar protn out of serviceX469 Reserve 4 busbar protn out of serviceX471 Main 5 busbar protn out of serviceX473 Reserve 5 busbar protn out of serviceX475 Check Zone 1 protn out of serv. Use for Check Zone 3 where a new board is replacing an old 16-Apr-10X477 Check Zone 2 protn out of serv. Use for Check Zone 4 where a new board is replacing an old Added for Rayleigh 132kV 16-Apr-10 BJRX479 Check Zone 1 protection operated Use for Check Zone 3 where a new board is replacing an old Added for Rayleigh 132kV 16-Apr-10 BJRX481 Check Zone 1 protn faulty Use for Check Zone 3 where a new board is replacing an old Added for Rayleigh 132kV 16-Apr-10 BJRX483 Check Zone 2 protection operated Use for Check Zone 4 where a new board is replacing an old Added for Rayleigh 132kV 16-Apr-10 BJRX485 Check Zone 2 protn faulty Use for Check Zone 4 where a new board is replacing an old Added for Rayleigh 132kV 16-Apr-10 BJRX487 Mesh Corner protection operated 29-Jan-07 BJRX489 Mesh Corner protection faulty 29-Jan-07 BJRX491 CB out of BZ scheme For CB switched out of Rough Balance scheme 7-Aug-07 BJRX493 BZ protection CT faulty 5-May-10 BJR

Or Main Bus Zone 1 protection operated

Or Main Bus Zone 2 protection operated

Or Main Bus Zone 3 protection operated

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Alarms 15

Ferrule ALARM Description Notes Amended By(Date)

TRANSFORMER/REACTOR

X501 Alarm common positive (If supplied separately from X1)X503 Buchholz gas 5-Aug-09 BJRX505 Aux transformer buchholz gasX507 Tap-changer buchholz gasX509 Neutral earthing reactor buchholz gasX511 Pressure relief device operatedX513 Conservator level lowX515 Winding temperature highX517 HV winding 2 temperature highX519 LV winding 1 temperature highX521 LV winding 2 temperature highX523 Oil temperature highX525 Winding temperature indicator faultyX527 Winding temperature tripX529 Cooler supply faultyX531 Fans bank A faultyX533 Fans bank B faultyX535 Pump A faultyX537 Pump B faultyX539 Breather faultyX541 Hydran monitoring faultyX543 Hydran alarm stage 1 Use suffix A for gas content, B for moisture content, C for CO content 10-Apr-15 BJRX545 Hydran alarm stage 2 Use suffix A for gas content, B for moisture content, C for CO content 10-Apr-15 BJRX547 Voltage control faultyX549 Tap-changer faultyX551 T(n) bay bund pump faulty Use suffix letters if more than one pump alarm via the same cable 6-Jun-08 BJRX553 Interceptor faulty 6-Jun-08 BJRX555 Conservator level high 9-Jan-07 BJRX557 Tap-change lockout 9-Jan-07 BJRX559 Tap-change motor trip 9-Jan-07 BJRX561 Main buchholz gas trip 13-Dec-07 BJRX563 Tap changer buchholz gas trip 13-Dec-07 BJRX565 Auxiliary transformer buchholz trip/pressure relief device operated 13-Dec-07 BJRX567 Tap-changer oil level low 9-Apr-08 BJRX569 Drykeep equipment faulty 31-Oct-08 BJRX571 Cooling faulty 11-Aug-08 BJRX573 Tap-change incomplete 11-Aug-08 BJRX575 Transformer alarm relay faulty 23-Sep-08 BJRX577 Conservator bag leak detected 25-Sep-09 BJRX579 Transformer auxiliary supply faulty Covers miscellaneous MCBs in Transformer Marshalling Kiosk 27-Jan-10 BJRX581 Oil temperature trip Added for LPN 9-Aug-10 BJRX583 Tap position beyond permitted range Mainly used for Quad Booster where higher taps not allowed. Added for EPN 4-Dec-12 BJRX585 Stage 1 Overflux Used for Quad Booster Added for EPN 29-May-13 BJRX587 Overflux trip Used for Quad Booster Added for EPN 29-May-13 BJRX589 Fans on Manual Control Added for LPN 3-Mar-16 DGX591 Cooling faulty Trip Tranformer Cooling Failed Transformer will Trip Added for LPN 1-Nov-16 DGX593 Abnormal Pressure Water or Oil Flow Faulty Added for LPN 30-Jan-17 DGX595 Conservator bag leakage trip Added for LPN 30-Jan-17 BJRX597 Leak detected Tranformer Cooling Oil (and/or) Water detected under heat exchanger Added for LPN 14-Jun-17 DGX599 Water temperature high Tranformer Cooling Water Temp High Added for LPN 14-Jun-17 DG

Or Main transformer buchholz gas, Or Integrated Safety Device Operated

Or HV winding 1 temperature high

Or Drycol breather faulty

Or Separator tank level high

Or Oil recycling equipment faulty

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Alarms 16

Ferrule ALARM Description Notes Amended By(Date)

MISCELLANEOUS

X601 Alarm common pos

CHARGER ALARMS If necessary, use suffix letter to identify individual chargersX603 AC supply to charger faultyX605 Charger faulty Alarm per charger (failing to charge or tripped)X607 Battery abnormal Alarm per battery (covering high & low volts and high impedance)X609 Battery earth fault On 110V batteries only?

X611 Fire protection operatedX613 Fire protection faultyX615 Fire/smoke detected If necessary, use suffix letters to differentiate between fire and smoke detection alarms 6-Jun-08 BJRX617 Smoke detection faultyX619 Fire protection disabled System rendered inoperative manually 29-Dec-06 BJR

CABLE ALARMS If necessary, use suffix letter to identify individual cablesX621 Cable oil/gas pressure fallingX623 Cable oil/gas pressure lowX625 Cable gas pressure highX627 Cylinder gas pressure fallingX629 Cylinder gas pressure low

X631 Sump pump faulty If necessary, use suffix letter to identify individual pumpsX633 LVAC supply faulty 30-Nov-06 BJRX635 Sewage Tank level high If necessary, use suffix letter to identify individual tanks Added for Rayleigh 132kV 29-Dec-06 BJRX637 Building management Could cover a number of items! Added for Rayleigh 132kV 29-Dec-06 BJRX639 Intruder May be required?X641 Control supply faulty 10-Jan-07 BJRX643 Cable monitoring equipment faulty 29-Jan-07 BJRX645 Cable temperature high 29-Jan-07 BJRX647 Oil detected in sump 29-Jan-07 BJRX649 Dehumidifier faulty 23-Apr-07 BJRX651 Fire pump faulty Added for Bankside 17-May-07 BJRX653 Water tank level high Also use for Interceptor Tank level high Added for Bankside 6-Aug-09 BJRX655 Water tank level low Also use for NER Liquid level Low Added for Bankside 17-May-07 BJRX657 Lift faulty Added for Bankside 17-May-07 BJRX659 Charger on boost Added for Bankside 17-May-07 BJRX661 Ventilation fan faulty Added for Bankside 17-May-07 BJRX663 Emergency lighting primed Added for Bankside 17-May-07 BJRX665 Emergency lighting operated Added for Bankside 17-May-07 BJRX667 Emergency lighting faulty Added for Bankside 17-May-07 BJRX669 DC supply faulty E.g. RTU common supply faulty or 24V supply faulty 22-Aug-14 BJRX671 Flood 12-Nov-07 BJRX673 Fire protection on manual Added for Amberley/Hoxton 6-Jun-08 BJRX675 Water Mist System discharged Added for Amberley/Hoxton 6-Jun-08 BJRX677 Water Mist System faulty Added for Amberley/Hoxton 6-Jun-08 BJRX679 Ventilation fan on manual 6-Aug-09 BJRX681 Humidity level high 6-Aug-09 BJRX683 Oil interceptor faulty 3-Sep-09 BJRX685 Water supply trace heating faulty Covers anti-freezing heating element on water pipes. Added for Canal St 8-Nov-10 BJRX687 Contactor controller faulty Added for black start 26-Feb-13 BJRX689 Manual bypass closed Added for black start 26-Feb-13 BJRX691 Battery string disconnection in progress Added for black start 26-Feb-13 BJRX693 Battery string disconnection overridden Added for black start 26-Feb-13 BJRX695 Gas detected Added for LPN 18-Nov-13 BJRX697 Temperature high Refers to room/zone temperature Added for LPN 18-Nov-13 BJR

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Alarms 17

Ferrule ALARM Description Notes Amended By(Date)

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Alarms 18

Ferrule ALARM Description Notes Amended By(Date)

PRIVATE GENERATION & THIRD PARTY 21-Nov-07 BJR

X701 Alarm common pos 29-Jan-07 BJRX703 Back-up G59 protection operated 29-Jan-07 BJRX705 Operational intertrip received 29-Jan-07 BJRX707 Customer trip 29-Jan-07 BJRX709 Dead bar trip 29-Jan-07 BJRX711 Disturbance detected 29-Jan-07 BJRX713 Disturbance recorder faulty 29-Jan-07 BJRX715 Power Quality outside limits 29-Jan-07 BJRX717 Power Quality recorder faulty 29-Jan-07 BJRX719 Harmonic levels outside limits 29-Jan-07 BJRX721 Harmonic recorder faulty 29-Jan-07 BJRX723 Generator AVC faulty 15-Aug-07 BJRX725 Reverse VARs detected 26-Feb-08 BJRX727 Generation/EDF back-up protection operated 26-Feb-08 BJRX729 Customer intertrip supply faulty 25-Feb-15 BJR

MISCELLANEOUS (CONT'D)

X751 Air conditioning faulty Added for LPN 24-May-16 BJRX753 Smoke damper closed Added for LPN 24-May-16 BJRX755 Smoke damper faulty Added for LPN 24-May-16 BJR

LOW FREQUENCY EQUIPMENT AND OTHER SCHEMES 19-Mar-07 BJR

X801 Alarm common pos 19-Mar-07 BJRX803 Frequency low 19-Mar-07 BJRX805 Low frequency trip 19-Mar-07 BJRX807 Low frequency equipment defective 19-Mar-07 BJRX809 Protection settings normal For Paddington Central circuits 9-Nov-07 BJRX811 Protection settings abnormal - " - 9-Nov-07 BJRX813 Protection settings change relay faulty - " - 9-Nov-07 BJRX815 Capacitor Bank trip For EPN 24-Jan-11 BJRX817 Capacitor Bank relay faulty For EPN 24-Jan-11 BJRX819 Capacitor Bank urgent fault For EPN 24-Jan-11 BJRX821 Capacitor Bank access interlock timer initiated For EPN 11-Feb-11 BJRX823 Capacitor Bank access keys released For EPN 11-Feb-11 BJRX825 Protection set as feeding end For LPN interconnectors 7-Mar-11 BJRX827 Protection set as load end - " - 7-Mar-11 BJRX829 CB selection discrepancy (protection scheme) - " - 7-Mar-11 BJRX831 ASC Controller faulty Added for EPN 25-Nov-11 BJRX833 ASC Earth Fault Added for EPN 25-Nov-11 BJRX835 ASC Unable to tune Added for EPN 25-Nov-11 BJRX837 ASC Tuning motor mains failure Added for EPN 25-Nov-11 BJRX839 ASC VT tripped Added for EPN 25-Nov-11 BJR

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Alarms 19

Ferrule ALARM Description Notes Amended By(Date)

PROTECTION (CONT'D)

X903 HV trip relay operated 14-Dec-07 BJRX905 LV trip relay operated 14-Dec-07 BJRX907 Directional Overcurrent operated 14-Dec-07 BJRX909 Standby Earth Fault stage 2 operated 17-Dec-07 BJRX911 Differential Protection relay operated 18-Dec-07 BJRX913 HV Restricted Earth Fault relay operated 18-Dec-07 BJRX915 LV Restricted Earth Fault relay operated 18-Dec-07 BJRX917 CB fail protection operated Also known as Back-trip operated 3-Jan-08 BJRX919 Trip after close on fault Also known as Switch on to Fault (SOTF) 3-Jan-08 BJRX921 Persistent intertrip received 5-Jun-08 BJRX923 Circulating current protection operated 5-Jun-08 BJRX925 Undervoltage relay operated Also used for "No line voltage detected" Alternative usage added for Littlebrook B 29-Mar-10 BJRX927 Feeder overload 11-Aug-08 BJRX929 Liveline selected 14-Aug-08 BJRX931 Stub protection operated 23-Sep-08 BJRX933 Open-circuit CT detected 23-Sep-08 BJRX935 Auto-close relay faulty Also Auto-close, Auto-switching and DAR 23-Sep-08 BJRX937 Intertrip Equipment warning 23-Sep-08 BJRX939 Blocking on local control 23-Sep-08 BJRX941 Blocking switched off 7-Nov-08 BJRX943 Standby Earth Fault stage 1 operated 9-Jul-09 BJRX945 Standby Earth Fault relay faulty 9-Jul-09 BJRX947 Trip relay reset supply faulty 22-Sep-09 BJRX949 Arc Suppression Coil operated 24-Nov-09 BJRX951 Intertrip Channel 1 faulty Particularly for C30 schemes 2-Mar-10 BJRX953 Intertrip Channel 2 faulty Particularly for C30 schemes 2-Mar-10 BJRX955 Transformer LV protection operated (SPO) For EPN 22-Mar-11 BJRX957 Protection GPS signal faulty 6-Aug-12 BJRX959 Interlocked overcurrent protection faulty 27-Dec-12 BJRX961 Arc protection operated 29-Nov-13 BJRX963 Arc protection relay faulty 29-Nov-13 BJRX965 Blocking sent 24-Jul-15 BJRX967 CT supervision faulty 3-Dec-15 BJR

Also Intertrip Equipt Minor Fault

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Alarms 20

Ferrule ALARM Description Notes Amended By(Date)

L101 Start of chain common posL103 Connection to next panelL105 Connection to next paneletc incrementing in odd numbersuntil End of chain

SWITCHGEAR RELAY SERIES ALARM CHAIN (LPN ONLY) - NO LONGER IN USE

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Measurements 21

Ferrule Description Polarity Notes Amended By(Date)

XC11 Current Red phase pos Use same for ac measurementsXC12 neg - " -XC31 Yellow phase pos - " -XC32 neg - " -XC51 Blue phase pos - " -XC52 neg - " -XC71 Neutral or earth pos - " -XC72 neg - " -XC91 Total load (via AVC) pos - " - 24-Jan-08 BJRXC92 neg - " - 24-Jan-08 BJR

XV11 Voltage Red phase pos Use same for ac measurementsXV12 (Circuit) neg - " -XV31 Yellow phase pos - " -XV32 neg - " -XV51 Blue phase pos - " -XV52 neg - " -XV71 Neutral voltage (ASC) pos 24-Nov-09 BJRXV72 neg 24-Nov-09 BJR

XE11 Voltage Busbar voltage (Main section 1) pos Use same for ac measurementsXE12 (busbar) neg - " -XE13 Busbar voltage (Reserve section 1) pos - " -XE14 neg - " -XE21 Busbar voltage (Main section 2) pos - " -XE22 neg - " -XE23 Busbar voltage (Reserve section 2) pos - " -XE24 neg - " -XE31 Busbar voltage (Main section 3) pos - " -XE32 neg - " -XE33 Busbar voltage (Reserve section 3) pos - " -XE34 neg - " -XE41 Busbar voltage (Main section 4) pos - " -XE42 neg - " -XE43 Busbar voltage (Reserve section 4) pos - " -XE44 neg - " -

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Measurements 22

Ferrule Description Polarity Notes Amended By(Date)

XP1 MW Import MW posXP2 negXP3 Export MW (if needed) pos Where import/export not from single measurementXP4 neg

XQ1 MVAr Import MVAr posXQ2 negXQ3 Export MVAr pos Where import/export not from single measurementXQ4 neg

XT1 Transformer Tap position posXT2 negXT3 HV winding 1 temperature posXT4 negXT5 LV winding 1 temperature posXT6 negXT7 HV winding 2 temperature posXT8 negXT9 LV winding 2 temperature pos

XT10 negXT11 Oil temperature posXT12 negXT13 Hydran gas level posXT14 negXT15 Hydran water content posXT16 negXT17 Hydran CO content pos 10-Apr-15 BJRXT18 neg 10-Apr-15 BJR

XG1 Synchronising Running volts posXG2 negXG3 Incoming volts posXG4 negXG5 Phase angle posXG6 neg

Or import/export where single measurement used

Or import/export where single measurement used

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Measurements 23

Ferrule Description Polarity Notes Amended By(Date)

XF1 Frequency posXF2 neg

Miscellaneous e.g. sw'room temperature,outside temperature,humidity,wind speed, fan speedcable pressures,etc, etc

SUGGESTED ALLOCATIONS

XM1 Cable pressure (oil or gas) posXM2 negXM3 Switchroom temperature pos } { 24V pos 6-Aug-09 BJRXM4 neg } For UKPN { 24V neg 6-Aug-09 BJRXM5 Switchroom humidity pos } combined sensor { Humidity 6-Aug-09 BJRXM6 neg } { Temperature 6-Aug-09 BJRXM7 External temperature posXM8 negXM9 Wind speed pos

XM10 negXM11 Battery string voltage pos Added for black startXM12 negXM13 (Spare) posXM14 neg

Arc Suppression Coil SchemesXA1 ASC volts (V0) from transducer pos 25-Nov-11 BJRXA2 neg 25-Nov-11 BJRXA3 ASC volts (V0) from controller pos 25-Nov-11 BJRXA4 neg 25-Nov-11 BJRXA5 ASC current pos 25-Nov-11 BJRXA6 neg 25-Nov-11 BJRXA7 Coil position pos 25-Nov-11 BJRXA8 neg 25-Nov-11 BJR

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Communications 24

Ferrule Description Polarity Notes Amended By(Date)

Serial bus communications wiring

XY0 K-bus screen Overlooked on earlier issues! 11-Aug-10 BJRXY1 K-bus 'a' leg Use suffix A, B, C etc if more than one bus 18-Feb-08 BJRXY2 K-bus 'b' leg of the same protocol. 18-Feb-08 BJR

XY3 IEC 60870-5-103 'a' leg Use suffix A, B, C etc if more than one bus 18-Feb-08 BJRXY4 IEC 60870-5-103 'b' leg of the same protocol. 18-Feb-08 BJRXY5 IEC 60870-5-103 ground 18-Feb-08 BJR

XX1 Auxiliary 48V supply pos Supply for Siemens Transducers 18-Feb-08 BJRXX2 Auxiliary 48V supply neg 18-Feb-08 BJR


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