Plant Term 2 Local

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juliave
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Plant Term 2 Local
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2014-02-14 11:08:52
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Plant Term Local
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Plant Term 2 Local
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  1. What do you do when a unit goes planned OOS?
    • Implement CROW
    • Log O/R
    • Tag O/R on AREVA
    • Fully derate unit
    • Block/inhibit alarms for generator and governor
    • manually set breaker open and MW to 0
  2. What do you do when a unit goes planned RTS?
    • Unlock alarms
    • Un-inhibit breaker and MW
    • Review UCs, caution tags, and alarms
    • Return O/R
    • Remove O/R from log
    • Remove O/R tags from AREVA
    • Not fully derate unit
    • Complete CROW
    • Call PSOSE
    • Notify GC if applicable.
  3. What resources do you have on the desk?
    PSOSE, Operating Orders, Desk log, COPS, other operators, Plant Instructions
  4. What are the environmentally sensitive plants?
    • RUS, CMS
    • PUN, JHT
    • ALH, FLS, LAJ, SHU, SON
  5. What are the remote blackstart units?
    • ASH
    • COM
    • REV
    • RPG
  6. Generally, what do you do when a unit trips?
    • -How does this affect water fish? (Think of PRV, RGO, Call for Spill etc.)
    • - Check for other alarms that may affect response (ie. 86 Lockout may be treated differently if it coincides with Fire System Trouble).
    • - Any or all of: SCM, Plant Manager, PSOSE, GC, TC and GO may need to be aware.
    • - If tripped to SNL, check with grid and/or GC and attempt to re-sync if possible.
    • - De-rate unit(s).
    • - Enter forced outage in CROW.

    Call PSOSE
  7. What do you know about ABN?
    • PLC controls the MW based on forebay
    • Can't start units remotely
    • Possible to sync units at SNL
    • Stop units by opening the unit CB. G3 has stop button.
  8. What would you do if both ALH units were running, 500 CMS respectively, the forebay is at 431 meters and one unit trips and locks out @ 6 AM on Monday?
    Forebay is irrelevant since unit tripped to 86 type (lockout cannot start or re-sync).

    Contact ALH control room or Fortis SCC to call out ALH operator (LOO SE3 4.2.2)

    HLK is staffed, call HLK Lock keeper to restore flows.

    If the HLK Lockkeeper cannot be reached, initiate RGO to automatically open the gates and restore flows.

    Reset RGO
  9. What are the HLK Lockkeepers hours?
    • 06:00-16:00 M-F
    • 0800 - 1600 weekends and stats
  10. What would you do if both ALH units were running, 500 CMS respectively, the forebay is at 431 meters and both unit trip to SNL @ 5 AM on Monday?
    Check with grid and/or GC

    Reservoir is below 433 (channel stability criteria and 24 minute timer are active)

    • HLK Lockkeepers not staffed so initiate RGO.
    • Leave units at SNL
    • Call ALH control room or Fortis SCC to call out ALH Operator
    • Call HLK Lockkeeper to adjust flows.
    • reset RGO

    Call PSOSE
  11. What would you do if both ALH units were running, 500 CMS respectively, the forebay is at 433.5 meters and both unit trip to SNL @ 5 AM on Monday?
    Check with grid and/or GC

    Reservoir is above 433m so channel stability criteria and 24 minute timer are inactive

    • Attempt to re-sync one unit at a time (to avoid Gross Trip) and restore operation to pre-trip conditions.
    • Notify FBC

    • If unable to restore flow in 10 minutes,
    • HLK Lockkeepers not staffed so initiate RGO
    • Call ALH control room or Fortis SCC to call out ALH Operator
    • Call HLK Lockkeeper to adjust flows.
    • reset RGO

    Call PSOSE
  12. What would you do if both ALH units were running, 500 CMS respectively, the forebay is at 433.5 meters and one unit trips to SNL @ 3 PM on Saturday?
    Check with grid and/or GC

    Reservoir is above 433m so channel stability criteria and 24 minute timer are inactive

    Attempt to re-sync and restore operation to pre-trip conditions.

    • If unable to restore flow in 10 minutes,Call HLK is staffed, call HLK Lock keeper to restore flows.
    • If the HLK Lockkeeper cannot be reached, initiate RGO to automatically open the gates and restore flows.
    • ALH control room or Fortis SCC to call out ALH electrician
    • Reset RGO
    • Call PSOSE
  13. What prevents governor set point changes when the FB is below 433m?  Why did ALH implement this sort of protection?
    24 minute Channel stability timer.  Pressure differential in the FB caused by flow changes through the units resulted in the concrete channel liner heaving.  This protection scheme was implemented to prevent future damage.
  14. For any ALH operational procedures what document would you refer to?
    • ALH A07
    • ALH SE3?
  15. Who dispatches electricians to ALH?
    FBC
  16. Who holds AOR on HLK?  Where do you find this information?
    1J-11. CBG (Columbia Basin Generation)
  17. How do you lower the RGO gates once they have been raised?
    Lockkeepers need to lower locally in co-ordination with ALH unit restoration. Can't remotely lower the RGO gates.
  18. What does the RESET button do on the RGO display?
    • The Reset command on the RGO system re-initializes the memory pointers and clears the buffers (such as the stored flow value). The reset command arms RGO for the next
    • usage. A Reset is automatically applied following a successful gate opening operation.
  19. After an RGO operation what is the final implementation that must be completed?
    record in CM with "create implementation"
  20. What is 60sec timer? (ALH)
    60 Sec: Click Initiate within 60 sec of entering new flow setpoint or the new flow setpoint will disappear
  21. What is the 2 min timer (ALH)?
    2 Min: After unit start is initiated, ALH units must remain in SNL for 2 minutes before they can be synchronized.
  22. What is the 5 min timer (ALH)?
    5 Min: After unit is synced, Initiate a flow setpoint within 5 mins or 24 minute timer will start (if FB is <433m).
  23. What are the 24 min timer (ALH)?
    24 Min: Only applicable when forebay is <433m. 24 min Channel Stability timer (P6 "24 MIN RAMP TIMER ON") will limit operators to one unit start or flow increase per 24 minutes. Unit stop and flow decrease are always possible.

    Prevents  damage to the approach channel due to possible pressure wave.
  24. What water course is ALU part of?  What plants are downstream of ALU
    ALU SFN RUS

    Stave River
  25. What do you know about ASH?
    • Only remote blackstart unit on Vancouver Island
    • Mechanical ramp rates (3MW/min down, 9MW/min up)
  26. PSOSE requests a discharge change at DSY.  SPOG 1 from .16m to .3m.  Describe how you would go about this?
    Open up the Converting WC operations screen in Web CM

    Ramp rates are based on current flow.

    3T-CMS-01 has ramp rates
  27. Both CMS units are online G1 = 40 MW & G2 = 40 MW.  G2 trips offline while ramping to 0 MW, what action would you take?
    Nothing. Total plant output remains at 40MW.
  28. CMS G1 is offline and you are ramping G2 from 40 – 10.  Are there ramp rates? If so what are they? And what would you do if G2 tripped offline and locked out @ 30 MW?
    The rate of generation output decrease shall not exceed 10 MW every 5 minutes during reduction of generation at CMS when generation plant output is between 40 MW and 10 MW. Plant Operators must use PID control to achieve the ramp and use a 1.5 MW/minute as the ramp rate until further notice. Manual pulsing is susceptible to error and potential ramp rate violations and is not allowed.



    If the ramping unit trips, start the other unit and load it up to the pre-outage loading of the tripped unit, then continue the rampdown. If no other unit is available, no action is required. Inform PSOSE in either case if the rampdown is interrupted.
  29. What do you do when taking CMS G1 from 10MW to 0MW when G2 is off?
    Generation plant output from 10 MW to 0 must be achieved by waiting at least 5 minutes after completion of the 40 to 10 MW ramp and then shutdown the unit.
  30. You are dispatched a generation change to target CMS output to 95 MW the FB is 365m.  How would you go about implementing this request?
    Generation restrictions when Forebay elevation below 366.7.

    At 365m generation is restricted to 75MW.
  31. Why is Cheakamus an important plant for a Lower Mainland system restoration.  Where would you find information in this regard?
    • CMS is equipped with an emergency standby diesel generator and both units have full remote "Black Start" capability. 
    • 6T-70  3.14.1
  32. What must mode must LFC be in for PID to work with CMS?  Why?
    ON, it was originally set up as an AGC controlled plant
  33. What do you know about CMS
    • Units must be shutdown at 10MW
    • Ramp rates apply to decrease only
    • When plant total is 40MW must use PID to ramp down at 1.5MW/min to 10MW. Wait 5 min to simulate ramp, and then shut down.

    Generation restrictions based on forebay level.
  34. If a spill was required what action would you take? (COM)
    None, auto spill
  35. You just shut down G1 and 10 minutes later you get a start up instruction.  What action would you take? (COM)
    None, you must wait 30 minutes unless a creep alarm comes in. 
  36. PSOSE has instructed you to take G1 to 20 MW what would you check prior to implementing this request? (COM)
    Forebay elevation
  37. What must be done prior to shutting down G1 at COM?
    Flush unit by fully loading (full load or max load based on elevation) for 5 MIN.
  38. What do you know about COM?
    • Must manually increase gate limit to 30% before start-up
    • After shut down manually decrease gate limit to 0%
    • Check reservoir level for loading
  39. If G1 & G2 are at full load (flash boards in) and G2 trips off line what would you do? (ELK)
    Open sluice gate to equivalent cms lost (One unit at full load equals 50% LLOG1 sluice gate opening.)

     notify PSOSE, call-out, Crow
  40. If G1 & G2 are at full load (flash boards out) and G2 trips off line what would you do? (ELK)
    • Notify PSOSE, the weir crests are
    • designed to handle the additional flow, however we still must meet the forebay
    • elevation requirements issued to us by PSOSE. 
    • Sluice gate operation and dispatch for tainter gate operation may be required.

    Report to PSOSE and call out
  41. Before calling out for any alarms at ELKO what action would you take?
    Do an “Alarm Group 1” reset
  42. What do you know about ELK?
    When flashboards in, must maintain the forebay within a set band to prevent wear on the flashboards

    Gate are blocked to provide min flow

    Ramp rates when flashboards are being taken in and out

    Can only be started and synced locally
  43. Why are we required to operate the FB under such tight constraints when the flash boards are in? (ELK)
    Prevent wear on the flashboards.
  44. You get the following priority 4 alarm, FLS 22 – G1 winding temp high.  What would be your process
    for handling this alarm?
    check alarm operating order to make sure EMS is displaying the correct priority

    Check CROW, check e-terra history, check PI
  45. How often can you initiate a raise / lower command at FLS?
    One raise and lower no more frequently 15 minutes
  46. Are there fish issues at FLS?
    min flows and seasonal ramp rates

    • Spring: ramp rates on generation increase
    • fall: ramp rates on generation decrease
  47. What control would you use to adjust generation at FLS?
    Bias the MW CONTROL to the GATE LIMIT and adjust MWs with the GATE LIMIT
  48. Why is Falls River important in a 2L101 outage?  What operating orders describe the actions taken by all parties during a 2L101 outage?
    • Provides voltage and MW support and
    • can be used to keep RPG units out of there respective rough load zones.

    6T-73
  49. When starting a FLS unit what precaution would you take in order to prevent a possible negative power trip?
    After start-up, give the unit several raises using the MW control to adjust up to the gate limit before using the Gate Limit to control the MW to avoid the unit going into reverse power.
  50. What must be done at JHT after every AREVA failover or JHT plant output change?
    Check plant total analog warnings and alarms are correctly set.


    •  The dispatcher shall ensure the analogue warning levels are set to alarm at (X+2) MW and(X-2) MW.
    •  The dispatcher shall ensure the analogue operating levels are set to alarm at (X+3) MW and (X-3) MW.
  51. What do you know about JHT?
    Plant output in MW must be maintained within +/- 2.0 MW of the target.

    +/- 3.0 MW is a violation on the low side.

    1 cms = 1MW


    LDR powerhouse is not hydrology balanced with the JHT powerhouse. Full generation at LDR will increase the JHT forebay elevation even with full output at the JHT powerhouse.
  52. What do you do if any JHT units are forced out?
    restore flow to the lower of the pre-disturbance discharge or the minimum "Preferred" discharge with the remaining units.

    If, after units are forced out, the minimum "Preferred" discharge is still being maintained, the Plant Operator will follow normal ramp rates back to pre-disturbance discharge.


    If pre-disturbance discharge cannot be restored with generation, the Plant Operator shall run the remaining units to the maximum possible output and notify the duty electrician to initiate spilling, if required, in order to target the minimum flow as shown in the table below. If spill increase is required, it must be initiated no more than 10 minutes following the unit trip.
  53. Are there ramp rates at JHT? 
    What are they?
    Yes
  54. If you were required to shut down a unit at JHT while simultaneously starting-up a unit would you operate at the upper or lower plant
    total operating range?  Explain your
    answer.
    Operate at the upper range of the operating bandwidth.  Ie. If the plant target is 58 MW get the plant to ~60-61 MW near the upper limit so that a buffer is created for any unanticipated plant reductions before beginning the unit swap.  The true environmental (fisheries) violations are on the lower end of the plant output target.  A momentary overshoot is acceptable during these load changes (unit swaps) but a momentary under-shoot, below -3 MW plant output is a reportable violation.
  55. If you had a unit trip offline at JHT and all other units are at full load (ie. You cannot recover with generation) where would you find the value that you would require to spill to?
    Plant Instructions
  56. Who is the PIC of the JHT spill gates?
    JHT shift electrician
  57. Who calculates the appropriate gate openings? (JHT)
    JHT shift electrician
  58. If a unit trips offline at JHT and you are attempting to recover with online units must you still adhere to the ramp rates?
    No

    If, after units are forced out, the minimum "Preferred" discharge is still being maintained, the Plant Operator will follow normal ramp rates back to pre-disturbance discharge.
  59. How many CMS is approximately 1 MW of generation at JHT?
    1 CMS = 1MW
  60. What would you do if all generation was lost at JHT?
    • Reduce LDR generation to 50% within ½ hour
    • Further reduce LDR generation to JHT reservoir level below 140.06m
    • This will provide the time to either determine if units can be returned to service or to initiate a spill.
  61. Where would you find the operating instructions indicating what to do after a significant earthquake at JHT?
    3T-JHT-01, Section 2.5
  62. What would you anticipate to happen in JHT Forebay were to get to 139.72m?  Where would you find this information?
    • JHT – LDR runback protection would operate.  LDR G1 would trip to SNL after 5 minutes at the FB level G2 would trip to SNL.
    •  
    • 3T-LDR-01
  63. Can JOR run in an islanded configuration?
    Yes. Must be done locally. 5T-1L243/5T-1L246
  64. How many MVA can you put on JOR G1 before the second unit breaker has to be closed?
    75MVA
  65. What is the most important thing to remember when shutting down JOR?
    Close the HCV.


    16% HCV opening is the equivalent to 50 MW and 100% HCV opening is equivalent to full load
  66. The distribution feeder that supplies power to diversion is out and you’ve been asked to start up JOR.  How do you open the HCV?
    Start the diversion diesal.
  67. What do you know about JOR?
    Elliot forebay is small so must open HCV when running unit

    Tell Grid 2 when starting or stopping
  68. Before starting a unit at KCL what is imperative to check?
    The unit disconnect is closed. CBs open.
  69. Is there a PRV at LAJ?
    Yes
  70. Are there any fisheries restrictions at LAJ?
    Yes

    min flows

    ramp rates on generation discharge (field)
  71. What do you know about LAJ?
    mechanical ramp rates of 2.6MW/min

    minimum flows.

    Do not reduce generation by reducing the PRV limit.

    Gate limit must be set to 20% prior to starting.


    • Cannot decrease generation so the downstream river elevation decreases more than 2.5 cm/hr on average and no more than
    • 15 cm over a 24-hour period.
  72. How would you open the PRV and what precautions must you be aware of. (LAJ)
    Lower the MW control to un-bias the MW control from the PRV Limit until the PRV indicates open. This may takena few coarse pulses (to unbias the governor from following the PRV Limit control). The PRV % opening is the difference between the PRV Limit indication and the % wicket gate opening.
  73. If a decrease of power house discharge is required who implements this request while adhering to the ramp rates? (LAJ)
    There is a restriction on the stage change of the river downstream of 2.5 cm/hour. Because someone needs to measure the stage change, the ramps are done by Bridge River Generation.
  74. What water course system is LAJ part of?
    Bridge River System, LAJ, BRR, SON
  75. What is JHT/LDR runback scheme?
    If JHT forebay gets too high, LDR units will trip to SNL.
  76. What are the min flow and ramp rates at G6? (PUN)
    The minimum flow at Gauge 6 at all times is 5.7 cms (on a 3 day rolling average) or 5.1 cms (instantaneous).

    Ramp rates at Gauge 6 are 2.8 cms/hr when the flow at Gauge 6 is between 5.1 and 19.8 cms. There is no ramp rate restriction when Gauge 6 flows are above 19.8 cms.

    To avoid a minimum flow and/or ramp rate violation, the BC Hydro control centre will always keep flow at Gauge 6 above 6.0 cms and ramp rates during planned flow changes will be a maximum of 2.5 cms/hr (while Gauge 6 flow is below 19.8 cms).
  77. Are there min flow’s or ramps rates at G8? (PUN)
    Yes, seasonal, See 3T-PUN-01
  78. What is a pulse flow? (PUN)
    They are 48 hours long from start to end and water flow will be increased to greater than 12 CMS at Gauge 6. Once the Gauge 6 flow rises above 12 CMS, the flow cannot drop below 12 cms.
  79. How do you open the PRV at Puntledge?
    Lower the MW control to un-bias the MW control from the PRV Limit until the PRV indicates open. This may take a few coarse pulses (to unbias the governor from following the PRV Limit control). The PRV % opening is the difference between the PRV Limit indication and the % wicket gate opening.
  80. With the PRV open will a lower with the MW controller affect water flow through the penstock? (PUN)
    The PRV and wicket gates are inversely mechanically coupled and their control can be achieved through the use of PRV Limit Control (which affects total penstock flow, but may or may not affect MW output) and MW Control (which controls the only the wicket gates up to the PRV Limit and affects only MW output)


    No, the PRV will open in proportion to the CMS decrease through the unit and the CMS through the penstock will remain unchanged.
  81. You have placed 3 coarse lowers on the MW controller and the PRV will not open what would you do? (PUN)
    Keep giving it lowers, if the operator that last ramped the unit gave it multiple MW raises biasing it against the PRV gate limit than those pulses need to be reversed before the PRV will open.
  82. What is the ramp rates and minimum flows at gauge 8 (PUN)
    • Gauge 8 normal minimum flows are:
    •  15.6 cms {3-day rolling average} and 15.1 cms {instantaneous}: January 1 to September 20
    •  15.6 cms base flow ratcheting up to 20.7 cms {3-day rolling average}: September 21 to December 31


    Ramp rates for flow increases
  83. How long does it take for changes at CMC gates to be seen at gauge 6 and gauge 8? (PUN)
    • gauge 6: ~30-45 min
    • gauge 8: up to 3 hours.
  84. What do you know about PUN?
    PRV Gate limit always changes how much water is running through the penstock

    mechanical ramp rate of 1MW/min

    at least 6cms but no more than 20cms must be flowing through the PRV to start the unit.
  85. How do you close the PRV: (PUN)
    • When unit online:
    • -Raise the MW controls until the unit is closed (water change is 0)
    • -can also lower prv limit until the prv is closed

    bias the MW control to the PRV gate limit by doing 3 coarse MW raises

    • unit is offline:
    • Lower the PRV limit to 0 (affects water)
  86. How do you open the PRV? (PUN)
    • unit is online:
    • -Lower MW control to un-bias the MW to the PRV limit. This may take a few coarse pulses. (affects water)

    • unit is offline:
    • -raise PRV limit (affects water)
  87. How do you change PUN G1 output?
    PRV closed: use PRV limit control (affects water)

    PRV open: use MW control
  88. How is the field flashed on unit 1 – 4?
    Selecting the unit breaker and clicking on synch close.  After the field flashes click execute.
  89. For an unplanned 2L101 outage, what is the key goal?
    Restore oldfield customers within 10-15min.
  90. What line outage would require RPG to run in an islanded configuration?
    2L101
  91. What operating orders describe running RPG in an islanded configuration?
    6T-73 and 3T-RPG-01
  92. Who must you call prior to starting RPG on gas?
    Spectra Energy Gas Control
  93. After running on Diesel for 50 hours what must be done? (RPG)
    To avoid excessive carbon build up on the gas passages of the fuel nozzles, the units should be run for at least 1 hour on natural gas after every 50 hours on liquid fuel. If after 50 hours running on liquid fuel, circumstances do not permit a 1 hour run on natural gas then the unit should remain on liquid fuel until the fuel nozzles can be serviced. Failure to observe this precaution will result in gas flame distortion causing excessive hot section deterioration.
  94. Is a supply of gas required to start on diesel? (RPG)
    Yes, line packs allow multiple start attempts.
  95. G1 is running in isochronous mode and the loading is getting high.  G2 is running @ 5 % droop and has very little loading.  How would you transfer the loading from the isoch unit to the droop unit. (RPG)
    MW raises on the droop unit.  In islanded operation an increase in MW on the droop unit will be seen by the isoch unit as an increase in system frequency.  The isoch unit will then reduce generation to keep the frequency at 60 hz.  You do NOT raise or lower the MW on the Isoch unit.
  96. In order to close the bleed valves and reduce unit vibration what must be done when the units are started. (RPG)
    When increasing the MW output through the restricted zone, raise the output to 15 MW before allowing the unit to operate down to 12 MW. This is necessary to close the bleed valves.
  97. What do you know about blackstarting RPG units?
    - must close unit breaker within 5 minutes to restore AC SS from the time the unit reaches SNL
  98. What do you know about RPG sync condense?
    After shutting down after operating in sync condense, you must wait a minimum of 15 min before attempting to restart the unit

    You cannot transfer an RPG unit from Condense to Generate.
  99. What is the goal after a kick out of 2L101?
    Restore oldfield customers withing 10-15 min.
  100. Describe how you would blackstart RPG after a kickout of 2L101.
    • -Grid Operator notifies Load and Plant Operator
    • -Notify Spectra Gas if operating in gas mode
    • -After load operator opens 60CB15 and 60CB16, start RUP G1 in droop mode
    • -Place RPG G1 in isosynchronous mode.
    • -Close RPG unit breaker within 5 min of unit start
    • -Tell Load desk that the plant is ready to pick up load.
    • -When RPG load approaches 20MW bring the second one online
    • -Contact TVC and tell them to stay offline
    • -Load Operator closes 60CB15, 60CB10 and 60CB11. Plant Operator will start FLS and bring online
    • -Plant Operator advises BRL to come online and restore TVC's if generation is available.
    • -Plant Operator is responsible for adjusting generation and communicating with TVC's.
  101. Why must Ruskin and SFN by operated in Hydraulic balance?
    Hayward reservoir, located between SFN and RUS, has relatively little storage, and consequently may require quick changes in RUS generation to maintain the hydraulic balance between SFN and RUS.
  102. Are their ramping restrictions at RUS?
    Yes, during the spring and fall block loading.
  103. Are their min tail water levels that must be adhered to? (RUS)
    • Yes, 1.8M (Oct 15 – Nov 30) and
    • 1.7M (Dec 1 – Oct 14)

    to avoid de-watering fish habitat and stranding fish
  104. Does RUS have block loading?
    Yes,

    spring Feb 15- March 15: discharge must be less than 100cms to avoid stranding salmon

    Fall Oct 15- Nov 30: discharge must be less than of equal to 100cms  for salmon spawning
  105. What would you do if you lost 1 unit at RUS?
    In the event of a forced outage (unit trip(s)), re-establish the minimum required pre-outage flow as soon as possible, spilling if necessary. Run RUS units @ speed no load if generation can’t be placed back on-line. This would provide approximately 15 m3/s per unit of flow, where it’s estimated that 70 m3/s is required to keep the tailrace above minimum levels.


    • Recover the output with the other
    • unit or if unable call PSOSE to discuss what value of MW they want SFN reduced
    • to maintain hydraulic balance.

    Designated personnel for spilling at RUS
  106. What do you know about SCA?
    Units must be started OAAT (one at a time)
  107. Seattle City Light calls the plant desk and report that a spill of 150,000 cfs has been implemented due to an emergency what immediate action do you take?
    If all gates are operational, initiate a full 200 second gate movement on all gates releasing ~ 50,000 cfs.  While the gates are raising call PSOSE for precise gate openings, 2 more 200 second raises are likely required but PSOSE can calculate exact openings and keep the gates out of cavitation zones.


    In the event of a catastrophe (including Boundary emergency release) that requires immediate evacuation of the SEV facilities the Plant Operator must dial 51333, wait for the ringtone, press "1" for 2 seconds, wait for 3 confirmation tones and then hang up. This will initiate the muster alarm at SEV. If the plant desk does not receive a call from mustered personnel within 3 minutes then repeat the process.
  108. What kind of turbine is SFN?
    Kaplan

    Variable pitch, good for low head plants
  109. Why does PSOSE often dispatch small load changes to SFN?
    SFN is hydraulically balanced with RUS.
  110. How is generation adjusted at SHU?
    Unit loading is normally controlled by the forebay controller.

    minimum flows
  111. What must be done immediately by the plant operator after loss of SHU generation?
    immediately contact those listed inthe notification chart and in the correct sequence listed. 

    3T-SHU-01  2.2
  112. Are there fisheries restrictions at SON?
    minimum flows done by field staff

    seasonal block loading for fish

     

    APRIL 1 - JUNE 30 (32 - 42 MW OR SHUT DOWN) for sockeye smolt emigration

    JULY 1 - AUG 31 & SEPT 28 - NOV 15 (32 AND ABOVE OR SHUT DOWN) to deter fish from entering the draft tube
  113. What are the MW control like at SON?
    The governor is slow to respond so the plant operator may not see changes right away when loading/unloading the unit. However, raise/lower pulses will stack and surprise you with load rising or lowering more than you expected.
  114. How what you go about synchronizing at SON?
    Unit CB auto Closes to sync when conditions are met (1 step Start)
  115. What kind of turbine is at WAH?
    Pelton, highest head plant in BCH fleet
  116. If you get a high temp alarm at WAH while running in SC what must be done?
    The unit must be run in generate (greater than 15 MW) in every 6 hour period to prevent overheating.
  117. Can you operate WAH in SC when the tail race is greater that 19.6 m
    No
  118. Are there ramp rates at WAH?
    Yes, when the tail water is greater that 18 m


    If returning the unit to service when the tailwater level is initially > 18.00 m, step up the unit in increments of 5 MW or less to ensure that the resulting tailwater elevation does not exceed 19.60 m.
  119. What should the Operator check for prior to RGO at ALH?
    • RGO system is reset
    • No RGO system trouble alarms
    • RGO gates are in Supervisory mode
  120. At ALH what do you do when a unit trips to SNL with the reservoir at 430m?
    • When the reservoir is below 433m:
    • Leave unit or units at SNL
    • contact ALH control room or FBC control room to call out ALH operator

    • If Lockkeepers are stafffed, call them to restore flows. 
    • If not staffed initiate RGO
    • Call Lockkeepers to adjust flows.
    • Reset RGO
  121. What is special about ASH?
    Only plant on Vancouver Island with true black start capability.

    Mechanical ramp rates

    G1 auto synchronizes
  122. What information is necessary to implement a Man Check?
    • Name, mode of transport, cell
    • number, contact’s name and #, length of time
  123. What kind of turbines are at Bridge River?
    Pelton
  124. If a BRR unit is forced out of service who is responsibility is it to set it to fully de-rated.  Where do you find this information?
    Plant operator, see 1T-83
  125. When you start RPG what must you do?
    Call Spectra

    Go through ready to start checklist

    *unit will automatically load to 5MW to prevent reserve power
  126. What do you know about SEV sync condense?
    Must wait 30 min before putting another unit into sync condense to build air pressure

    when putting into sync condense, PID to 10MW and put into sync condense. This avoids SEV tripping due to reverse power.

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