20240909IPC to Staff 94(e) - Attachment 4 - HCPR190001 UNIT 1 Commissioning Hells Canyon Unit 1 Commissioning.pdf

Hells Canyon Unit 1 Commissioning Plan - MASTER SHEET
Individual will Initial Each Line when Complete, Each Section will be signed when complete
Pre-Start-Up Checks (All Complete Prior To 5/3/2023)
Runner
❑ Measure and record the runner clearances
a� ❑ Record the elevation of the runner band and crown seals relative to the surfaces of the corresponding
stationary parts
Turbine Pit
LMW 9 Verify all walkways are secured
�n1V® Clean up all tools, parts and liquids
Scroll Case
( A* ® Confirm all scroll case and draft tube drains are clear of equipment and free of debris
At 2; Make sure piezometer taps are clear and that piping is correctly attached
(,%f'E4 Confirm the scroll case and draft tube access doors are closed and secured
Stator
(JfF ❑ Megger each phase
MIL® Megger the stator
Rotor
❑ Perform post-assembly electrical testing prior to installation
Ln'i ® DC winding resistance Test
❑ Pole Drop Test
pill ❑ AC Hi Pot—5000V
�N+FEI Insulation Resistance and Polarization Index—1000 Vdc
�9 Perform post-installation electrical testing
fir.f$] Insulation Resistance and Polarization Index—1000 Vdc&500Vdc(used as baseline for future
maintenance testing)w/Field Bus
Make sure the rotor components(spider, balance weights, covers, blades)are secure and that no foreign
objects are present
Generator
® Inspect the entire stator area and upper bracket, including the air gap,for foreign objects
`,t}E] Take a set of stator air gap readings-Mechanical
1-mHo Make sure rotor shrouds and fan blade clearances are acceptable/RTD's as well
® Inspect brake piping for leaks
LYOperate the brakes k0c:C—
8'--Confirm operation of all brake system switches/notifications(gap sensors) tr �
CJ'—Confirm Brake start cycle setting,currently set to 30%speed,we will confirm this works as we commission
unit.Confirm the speed switch setting for the brake actuation is set no higher than 30%synchronous speed.
\'*W Mapping of soleplate cracking,per Tim Ferguson document
11Page
?; ---� ��-,!''�w,•,f�3a 3.�:_pl: �`,�,.,.��rr? ��, .h��n� ��r� r~J,r;fy�sl ty�f�rr� I<ff��rd�s��.t� t��;r��rs-eey��y�+�.
Internal Use Only

Bearings (thrust bearing, turbine guide, generator guide)
2''"Verify oil piping has been flushed and new filters installed including new TGB Filter Lam`
W Confirm correct oil levels(visual and indicated) DT�
0� Confirm the bearing oil level alarms and Trips are operational from LL and HH Level Switches.
R"_Confirm the bearing temperature measurements are accurate and calibrated pS'^
[R'Verify oil pump(s)are operational and flow rates are acceptable O�"�
W Inspect the oil piping for leaks QVC_-�
lid Verify proper operation of high-pressure lift pump system. Vvk'
ff� Check bearing pumps for oil flow and no aerating of the oil. D 000—
g Record bearing clearances �A#
® Make sure that old THB cooler water is off, and we are using the plate exchanger�+►F
Governor
Er"'Inspect the cabinet, piping,sumps and servos for oil and air leaks ti
Make sure the accumulator tank oil level is correct, d'b
Er High/Low alarm check, High/Low Trips. per_
Mock-Up operation of governor system without operating unit. Ob4,
Operate the wicket gates:
�/Verify the wicket gate position sensor operates correctly �'
® Verify the gates operate smoothly and do not bind VM`
El"' Record the gate opening and closing times(nominal 10 sec)w/prop valve A�60—
Record the gate opening and closing times(nominal 10 sec)w/Emergency shut down bb4,%-,
�/Verify cushioning and squeeze b�-
RC7 High Level-Low pressure gate stroke check and low level-low pressure check lJi4-
EMake sure servomotor lock engages and disengages W
Br Verify Speed Probe gap settings are correct&functioning(bench test) hw*--
Electrical
C Install new generator protective relay settings and verify relay operation Db�
lil Test all protective relay input and output circuits b -
e Test generator CT circuits-push current and verify polarity
E Test generator breaker trip and close circuits
A)A- i n O pa o-410h
2"'Test Governor control and shutdown circuits U*V�
a-Test turbine mechanical and electrical over-speed circuits &_3
9' Test Emergency Gate-drop circuits tom`
Iff'Test 86E Lockout. bVtx-
C'f Test PLC 86N,94G,5G. Fill out paperwork �`
Ef""Visually inspect all undervoltage relays. Fill out paperwork D44r-
B'Test unit control circuits b�—
B' Test AVR circuits Vkv-T
IT'Visual AVR Transformer Vt"Ic-
2' Complete and check TMS circuits and shutdowns. Bearings,stator etc.
Z'Test SCADA control,alarm and indication circuits t'4-
Rd_Verify EMS points and controls h'K—* i
s 00 I u.�S
Test AC and DC turbine bearing oil pump operation hf�
Q'Test oil level,flow, and pressure circuits,Turbine guide and Thrust Bearing M=7-'
2 Page
Revised 05/103/20 23 Hells Cc.inyon Rewind ard Control Systeryi Upgcide i-c)rxirnis,iorlirlg N_
Internal Use Only

E'Test oil pump control circuits,Turbine Guide and Thrust Bearing Mts~
R Test oil level trip circuits,Turbine Guide and Thrust Bearing Wler '
C'J'Test RTD circuits
R"' Test lift pump operation, permissive operation, and pressure switch t2!-
13' Test brake circuit equipment, operation and other systems permissive operation.
mrerrb —f lo+ CtT 41 S P 14K+
3"_Dry run of the wicket gate assembly with a governor shutdown. 100%to-2%gate bi,�
R'Check servo timing and cushion $*=Z—
Field Ground Relay-Positive,then Negative to ground.
2'- Make connections for performing Running Impedance Test bkk_
dVerify all trip test switches are closed.
Slow Roll - By Hand - Mechanics — W'- l I ybo� �o I by 64
Cr'_f the unit is unable to move by hand, it may be required to slow roll the unit with water. h_11P �
o Headgate will be cracked to fill the penstock. Headgate will then be closed.
o Gates will be crack open to allow water to flow and slow spin the unit.
o Perform as needed.
Creep Detect- By Hand -Techs
Br Verify Creep Detect operates, manually move SSG to initiate creep
Verify loss of speed probes. No speed on start up after xx seconds.Verify brake logic so they will be disabled.
Depression Operation (There are not a depression air compressor at Hells Canyon)
IVIA
Perform Overspeed tests (Bench)(201 X OPEN)
91-Test Mechanical Overspeed trip devices.
Ell-Verify proper trip and shutdown of unit after an overspeed trip. r 4..
Unit Shut Down (Bench) (201 X OPEN) t
ff'_Verify the unit can shutdown successfully before proceeding further
❑ Pre-Start Up Checks Complete - Signatures
Name,Title Name,Title
Name,Title Name,Title
Name,Title Name,Title
Name,Title Name,Title
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Revise(! 05/03/2023 Hells Cartivzon Rev.°in(l cn:J Cr)ritrol Systen-i Uipgrade Comrr)issso.)ning Plan
Internal Use Only

Name,Title Name,Title
Unit Start-Up Procedure (201X OPEN)
I
❑ Prior to Start-Up (2q'SX OPEN) - Record Timeframe
fj3 Verify all test instrumentation is turned on and working GS
Variable Sensor
Wicket Gate Position PLC
Penstock Pressure PLC
Scroll Case Pressure PLC
Unit Speed PLC
Penstock Flow PLC
Breaker Open/Closed PLC
AC RMS Voltage(Running EE Power Supply and
Impedance Test) Transducer
AC RMS Current(Running EE Power Supply and
Impedance Test) Transducer
❑ Watering Up - Record Timeframe
re ,
El Reset Eirep-dMirct—
Apply the rotor brakes manually AY�
[i�CraCk to fill and inspect for areas of leakage:JR Merit to be present for water up and penstock coupling
commissioning(modify JR Merit will not be present)—Send them an email. t1 —
I3 All access hatches CS
b Turbine shaft seal
11 Wicket gate stems
L�] Head cover flange
Vent piping
Lti Headgate raising Process: flvv—
B"—Raise gate to full open,attach indication cable to gate Qom,
M Lower Gate, Full closed,Set PLC Zero TP-131
[Open crack to fill,set in PLC 'L__VqG�_
9'-Initiate emergency gate-drop via E-Stop button b7Q1
111"Raise gate to full open,verify correct elevation in PLC 8 '' r
4 Page
Revis.eri U°1103/2023 Hells Canyon Rewincl rincl C ntrol 'System Upgrade Commissioning PICIn
Internal Use Only

ET--Open cooling water valves and check piping for leaks lsv-G
Confirm cooling water flow is present
2--confirm operation of cooling water flow alarms A`b�
15-Confirm water flow to the bearing coolers and stator air coolers 116'
[I-Check oil levels to make sure levels are not rising(indication of a water leak into reservoir)
Hr�Make sure governor accumulator tank is at full pressure and the oil is at normal level
2'-Set up bearing temp trend in the PLC I§Dz-
2"'Record the headwater 1& �rb• 37 and tailwater `��� S elevations = '
❑ Low Speed Checks (201 X OPEN) - Record Timeframe
O?"I'Verify in PLC when Master Start is initiated the gate limit will remain at 0%t,%ec--
2111-Verify Unit is in Local Control btb.--
[(f�Verify brakes have been disabled,we will use brakes valving at governor
Le Verify 70OG breaker close output trip jack is open and tagged.
E Verify 30OG&M342SA manual sync check trip jacks are open and tagged
C'Using Master Start,start unit b m-z.
04"Keeping gate limit at 0%, Verify we get a Breakaway fail and 86N lockout.���
CtiYReset lockout and re-start unit.
Ea�Increase gate limit until the unit spins JNfoC_
lii-Use master stop to close wicket gates b'V44t5-.-
Ui'-Manually apply brakes to stop unit bvz- -
❑ Slow Build to Overspeed trip test (201 X OPEN) - Record Timeframe
LYSet Runaway overspeed trip at 10%of rated speed
04,--Verify Unit is in Local Control �`
6 -Verify Brakes are back in Auto Position
B---Set gate limit to 10% lb*-.-.
le-'using Master Start,start unit
CEi'Verify Runaway overspeed trip @ 10%of rated speed IJ40--
©Verify unit shuts down properly
EF ' isten for unusual noises 606---
111"Make sure the brake pads are clear of the runner too,
O'Verify Virbosystm is recording the shaft runout Wiel.-
El"-Verify Vribosystm is monitoring the air gap �-
a--Record bearing temps.
❑ Slow Build to Speed No Load (201 X OPEN) - Record Timeframe
ET-Se _Runaway overspeed trip to normal 170%of rated speed
Ic�J�V�er'fy Unit is in Local Control h&1;z7"
LAY Verify in PLC when Master Start is initiated,the gate limit will remain at 0%-bb1S--^
Mend bearing temps kFbAG'.
LUd< Using Master Start,start unit -�-
crease gate limit to start unit spinning
5 Page
RFwis,ed 05/03/2023 hells Canyon Rewind on d Control System Upgrade Commissioning Plan
Internal Use Only

EY"lncrease gate limit to control unit bi
3-Verify Governor has control of unit at rated speed �J�`
Q- Operate the 86N using one of the trip inputs,verify unit shuts down properly..�,W,
B---Restart Unit with the above procedure. � -
2 Operate the 44G using one of the trip inputs,hold input high until the 5G operates and verify Unit shuts down
properly. D'Vqt�'—
1111�"Restart Unit with the above procedure. tSieftr-
B'-First offline governor tuning
B'-With Unit at SNL, lower gate limit to reduce Unit speed by 3%, move gate limit to 25%,record prop valve and
wicket gate movement. Tune governor until satisfied.
Ii-With Unit at SNL, lower gate limit to reduce Unit speed by 5%, move gate limit to 25%, record prop valve and
wicket gate movement. Tune Governor until satisfied. 6+4,
II�Listen for unusual noises t�:�
9;1'-Make sure the brake pads are clear of the runner !bt*--
B"-Verify Virbosystm is recording the shaft runout bil.,
l�Verify Vribosystm is monitoring the air gap bw-`
P"'Trend bearing temps in PLC 'ice
B'Use master stop to shut down the unit
Test monitoring speed every minute during slowdown, How long does it take to get to braking speed? mid ohs
❑ Normal Start to Speed No Load (201 X OPEN) - Record Timeframe
2"'Verify Unit is in Local Control WbRC'
B"'Verify Gate Limit has been set back to normal start up20✓ tsq!5,--
CYTrend bearing temps in PLC t7-;Z-
LT'-Using Master Start,start unit &'k-
12"Verify Governor catches and controls unit at rated speed. TSPI--
R-Verify the Governor tuning is acceptable, if not perform tuning steps again.
❑ Perform Running Impedance test (201X OPEN) - Record Timeframe
2-'Verify Unit is in Local Control (Only use the flukes for this test) aA-cr--
B"-Defeat timers as needed D+"
fa'"Verify Gate Limit is set to 0%for start up Qir
C3—Trend bearing temps in PLC IStF44--
M-Using Master start,start unit-j3lr
2'Using Gate Limit, increase to 3%or more until unit spins L-Po?"Z—
11"Under manual control, bring the unit up at 2%gate increments to rated speed. Holding a couple minutes at each
position for record collection. tsvxz—'
Gather impedance data while unit is rotating.Then bring the unit down in same 2%increments,and review data
amassing testis no instantaneous impedance changes of 3%and no more that 10%throughout the test. L6`
L9"'Using Master Stop,stop unit �1
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kl a"s esi 05/,'D3/2023 Hilly C;cany(:1n Rig vvfiari on i Control Sysferya Upgrade Comrnissic)ning Plana
Internal Use Only

❑ AVR on (DECS on) (201X OPEN) - Record Timeframe
L"Remove Running Impedance test leads
(a'-Install Field leads t74;z-
C,_--Verify Unit is in Local Control hVz—
Ell'Verify AVR start is not disabled h'-
5J'-Trend bearing temps in PLC.
EKTrend the Shunt field and Main field in the PLC L-bh
E?"Verify AVR is in FCR mode and at correct setting to slowly build voltage -
E]""Using Master Start, start unit
IB"'-When unit is at Sync speed,start AVR hAV21z-
L>-Bring the generator to rated terminal voltage incrementally(FCR mode).�tr
5�r-Perform relay check. Verify relays are metering correct voltage magnitude and phase sequence. Capture
oscillography from relay to perform voltage waveform verification.
0 Verify Virbosystm is recording the shaft runout and air gap h+�'-'
❑ Check the turbine shaft seal for leakage
EI-Review the penstock and scroll case pressure readings k�-
❑ Review AVR operation and performance. If performance is unacceptable,tune AVR (approximately 2 hour) (FCR to
AVR Mode).
Ea'-Starting with existing settings, perform step responses in FCR Mode and verify stability. Upon step test and
record review response. Changes may be required. Another step response will follow to verify stability. Repeat
as required.Verify Sequence values in DECS. 7S/t"\'
Transfer to AVR Mode. Perform step test with procedure same as above. Pt"A
[Fr'Verify OEL Operation. dzL p�
2� Stop unit using Master Stop and record shutdown from the DECS. -
Il?''Verify Unit is in Remote
ifi Verify 70OG breaker close output trip jack is open and tagged. L-VK-
IK Verify 30OG & M3425A manual sync check trip jacks are open and tagged
P--"Verify AVR is in AVR mode B�,
LEI' UUsing Master Start,start unit Y '6p-
11' Verify at 95% rated speed the AVR starts automatically.Verify proper field flash. Soft start settings record.
Adjust if required. (Stop and restart AVR if needed -
9' Voltage matching and sequence of operation. Verify voltage matching controlradjust as needed.
2T"Verify Gov tuning after AVR tuning, might need to make fine adjustments Wzr`
-� -�- r
d Saturation Test(Min Voltage from Exciter to+i69o-voltage,Approx.60 minutes.) -- 1/-P 4ck5
107
ET-Protective relay breaker trips
9--"201X open and 201Z closed
B-Close and trip that breaker from all protective relays,trip 1 and trip 2 �
R�-Close and trip breaker by rolling the 86E lockout ,-'o- -
L Ready to close the 201X. 16�
Phase Check, Close 201X, and perform phase check across
201Z (201X CLOSED)
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43".,/013/202:� , e r Sep Carvv'3ri Rewind7 sift(? C)rt rC31 y)1tifNf Urig de Cc)-ilty)issio!ing Min
Internal Use Only

❑ Release clearance on 201 X (201 X CLOSED) - Record Timeframe
Check phasing with 230kV sticks 1410"*4b"
Cii--Step 1 O'Verify Unit is in Remote Jam'
CY Verify 70OG breaker close trip jack is out and tagged Dom,
M--Verify 30OG& M3425A manual sync check trip jacks are open and tagged 050
0"'Start Unit 4'P"Z—
Er Phase-check across 201Z on all three phases to sync scope
Li]'Step 2
111—Phase-check the manual sync check of 30OG and Beckwith to sync scope. b*nl—
Er—Step 3
®Phase-check auto sync relay to sync scope. L'1421
Sync Unit Online and Perform Load Testing (2 01X
CLOSED)
Ca''Generator Breaker Closure (2031 OPEN)-Record Timeframe
Ild Verify 70OG breaker close output is closed and tagged removed b4_b�'
P"�Verify 30OG& M3425A manual sync check trip jacks are open and tagged N%_
NI—Verify Unit is in Remote Control
B—Using Master Start,start unit
9?'—Transfer Unit back to Local control V459--
Q"Manually sync the unit on using Sync Scope,one manual sync relay and Breaker close switch.4i!9—
B--Open Breaker, leave unit running bi',—
Manually sync the unit on using Sync Scope,second manual sync relay and Breaker close switch.Diw--
Er'Place Unit in Remote Control AJQr-
E Verify 70OG starts and Syncs Unit online
ET'-Online Protection trips (201 X CLOSED) - Record Timeframe
93"-Unit Online and Breaker closed.ohb4r--
ffr Issue 86N trip using one of the inputs. AAN-
C9'Verify Unit shuts down properly.4k;6--
93"Restart Unit 1J4tt-c-
B-Cower Over Speed trip from 105%to 99%
CYVerify 94G operation and breaker open.,hY-,M,
®'Verify 5G timer and 5G trip. bJ4—
P"-Verify Unit shuts down properly.jErdn--
❑ Open breaker on HPLP, using HPLP bypass button start unit to verify Black Start Condition.
8 Page
Re-vise d 0-5/03/2023 Neils Conyon Rewind ind Control S titer-t Upgrn(le ConirYiissioning Plan
Internal Use Only

❑ Online Governor Tuning (201 X CLOSED) - Record Timeframe
� t
�Verify Unit is in Remote Control -lll i'%—*
gK-Using Master Start, start unit ,
W-Verify 70OG syncs unit online tie---
la'-Ensure governor goes to min loading set point b16
0-'Transfer between governor mods and verify it is bump less kv:V__
Ca-'Online Gov tuning ts'K.,
perform a 1% per second gate movement of 20%. Record prop valve and wicket gate movement.
Tune governor until satisfied.AQ44 _
B'-Perform a 3%per second gate movement of 20%. Record prop valve and wicket gate movement.
Tune governor until satisfied. t4 ram I Q090 �_ _ I N S "00' i00ku I_
3% �/e9i o s,-}- -FksA L.! tb GGi dl d �
❑ Loading to Minimum (Record Value ) and unity power factor f_]or AVR
Tuning - Record Timeframe
D"s Load the unit to 5%of full power.
Er Every fifteen minutes record the shaft runout readings(Vibrosystm)Ry5 yN k �-s
ET� Every fifteen minutes record the generator air gap(Vibrosystm)
Z' Trend bearing temps in PLC
6 Check the turbine shaft seal for leakage
17 Review the scroll case and draft tube pressure readings
4�r_Trip unit from this operating point,while recording data with the DECS-400.
(Review AVR operation and performance. If performance is unacceptable,tune AVR.(about 2 hours) rj5vll\
Ell' Review OEL response stability online.
D,� Review UEL Response. Perform AVR Step Responses and review, make gain adjustments as required.
Record final step response.
0---Perform verification of electrical quantities in all energized protective relays,AVR, DFR, meters,etc.b42:!r1__
Er—Adjust the voltage set point to achieve the maximum MVAR output up to the overexcitation limiter in the AVR.
CallectMOM02s data w-Aag the DECS-400 and collect generator 31"harmonic data using SEL-300G.
ne.
CYAdjust the voltage set point to achieve the minimum MVAR output up to the under-excitation limiter in the
nVR G4@G+ 4QD-mS data using the DECS-400 and collect generator 3'd harmonic data using SEL-300G.
«--62rtartce-Vars-wit�-5'�e;-m,�CFline.
❑ Loading to 12.57o Capacity ( MW) (Max before Rough Zone) - Record
Timeframe
Load the unit to 12.5%of full power and unity power factor.L'�s
C� Every fifteen minutes record the shaft runout readings(Vibrosystm) "�" 12�S 1/VI LGSuwtiw�M�5
[3' Every fifteen minutes record the generator air gap(Vibrosystm), I-, V4 6vDsk15].W -p��,,t-�i
9 1 P a g e
R_-Yisecl 05/03/2023 Hells C;any(_,n Rewind and C;e n4ol System Upgrade Cornn-iissioning Plan
Internal Use Only

d Trend bearing temps in PLC�S
Check the turbine shaft seal for leakage 4-15
d Review the scroll case and draft tube pressure readings v)
n--Cvkaet pn ect data for tbic n + 8 - achine) L..r-ct--rn_
2!� Review AVR operation and performance. If performance is unacceptable,tune AVR.
12�-Perform a step test and review.
Tune PSS(Primary&Secondary)-May adjust MW range(12.5%-40%)
- Determine local mode oscillation
Perform frequency sweep.Collect uncompensated VAR-501 information.Adjust time constants&
apply calculate compensation.
)23 Determine the PSS lead-lag coefficients
;_�Zl Capture Uncompensated Bode plot with calculated compensation for VAR-501 verification.
,1' Adjust PSS Gains&Output limiters, perform step response to verify stability.
a Verify OEL and UEL with PSS Active.
Perform verification of electrical quantities in all energized protective relays,AVR, DFR, meters,etc.,A record
must be remote started and reviewed.We are not able to see real-time in the DFR. N�
Collect generator 3'd harmonic data using SEL-30OG
Adjust the voltage set point to achieve+20 MVAR. Collect MOD-026 data using the DECS-400 and collect
generator 31d harmonic data using SEL-300G.
} Adjust the voltage set point to achieve-20 MVAR. Collect MOD-026 data using the DECS-400 and collect
generator 3'd harmonic data using SEL-300G.
PD Return unit to unity power factor.
❑ Proceed to loading the unit in steps to the best-efficiency power(BEP)and then to full load. The steps can be:
40%( )60%( )75%( MW),90%( MW),and 100%( MW).
These positions can vary,depending on the SNL and BEP wicket gate positions. The usual rough zone,typically
in the middle range of load,should be avoided.At each loading point:
Adjust the voltage set point to achieve+20 MVAR. Collect MOD-026 data using the DECS-400 and collect
generator 3rd harmonic data using SEL-300G.
J Adjust the voltage set point to achieve-20 MVAR. Collect MOD-026 data using the DECS-400 and collect
generator 3`d harmonic data using SEL-300G.
'T At each loading position per above, review AVR& PSS operation and performance. If performance is
unacceptable,tune AVR. Perform step test and review response. May require to reduce loading.
--a During AVR Tuning perform governor step responses below. N,----
4B1 Get data for steady state for about 3-5 minutes at each load
P, Inject a positive and negative 0.3 Hz frequency at each loading level
°9Z, With a 5%droop=>10%change in gate position.
-K Load to 25%(_MW)
❑ Starting Gate position= Ending Gate Position = Los
❑ Time for Step= Time to return=
Load to 50%(_MW)
Lo'�
❑ Starting Gate position = Ending Gate Position= �e
❑ Time for Step= Time to return= � -
Load to 75%( MW)
❑ Starting Gate position= Ending Gate Position=
❑ Time for Step= Time to return=
❑ Load to Pmax( MW)
❑ Starting Gate position= Ending Gate Position =
❑ Time for Step= Time to return=
10 Page
Revised 0 5/031/2023 Hells Ccir;yor, Rewind aid Control Systern Upgrade Cot-naiissioning Plan
Internal Use Only

❑ Take readings while allowing the bearing temperatures to stabilize at each setting(consider running overnight
to heat soak bearings for quicker stabilization) T �"o. ► a`''w 3' - `Gk '1 SIM - s/t4 65
Return unit to unity power factor.
u u i e if ossible. ,it,�
(A'16t--
❑ Finalize AVR, PSS and VAR-501 commissioning - Record Timeframe
�1 Online Voltage Setpoint Step Test-While operating at the BEP and after the above data points have been
collected,adjust the voltage set point to set the stator voltage to approximately 100%of nominal with PSS on.
Once stable, perform a 10 second 2%step in the voltage setpoint using the DECS-400. Multiple step responses
will be performed.
,ice While operating at 100%rated output,adjust the voltage set point to achieve the minimum MVAR output up
to the under-excitation limiter in the AVR. Colleet-MG13-0M data using the DECS-400 and collect generator 3rd
harmonic data using SEL-300G.
e.
While operating at 100%rated output,adjust the voltage set point to achieve the maximum MVAR output up
to the overexcitation limiter in the AVR. Hold this operating point for one hour. Collect MOD-025 data using
the DECS-400 and collect generator 3`d harmonic data using SEL-300G. ,
-Q Ba�ame sister m ' e.
❑ Load Rejections - Record Timeframe
Verify all sensors are wired out and ready to record load rejections
!H-- Verify Auto Spill PLC input from Unit#1 is landed b=c--
R-I'Verify Unit is in Rerlote Control
2"'Start Unit and 440*4"toZ@% a99(©
2*--Start Recording data bb'--
[R"-Trip Unit by rolling 86E lockout fNbL
2'* Verify Auto Spill matches unit CFS h4es-
Q -Stop Auto Spill and close Spill gate if opened k'iw---
wire
R-l"Verify test data is wit pin limits
FT'Start Unit an f oa to,4Wo .510 YI
B'Start Recoding data Aim,
Trip Unit by rolling 86E lockout
B—Verify test data is within limits
B' rify-ttd y� /
C�Start Unit and 1 p to-89% 7S
OV Start Recording data
M"-Trip Unit by rolling 86E lockout lb+cls.
["'Verify test data i$wit�in limits �-
CYStart Unit and opogtatft to 100%or Maximum allowed gate limit MAC,
L9—Start Recording data h+.;Z.'
[E�'Trip Unit by rolling 86E lockout 1kYS
11 Page
Devised O-5/03/2023 Hells Canyon Rewind and Control 'System Upgrade Commissioning Plan
Internal Use Only

D'Verify test data is within limits
UlYlf any of this test data is not within limits,we will stop and re-evaluate.
3—Scroll case pressure not to exceed 125 PSI, Nominal scroll case pressure is 100 PSI t
0
❑ Final Controls Check- Record Time Frame
Gov W%'O
0--'Final 86N trip,using ILL gov pressure trip,verify breaker does not open before wicket gates are closed. Verify
head gate drop quits timing when breaker opens..h,_Wj;Z_
Verify all control panel switches and gauges are working and calibrated.
9 Verify all Wonder Ware buttons for Raise/Lower operate correctly
9�—Verify EMS controls and alarms
gr 'Verify PSS compliance operates correctly to EMS and Plant SCADA. _
2�Verify Delta Temps compliance W!
9-Verify NPDES flows Zj`v-%w —
14
�Close Local Service breaker and verify phase rotation at ATS switch,switch local service to this source '—
2Verify all timers have been returned to normal
E/Verify all overspeed trips have been returned to normal —
D�Verify PLC has no forced points b�
❑ Heat Run - Record Time Frame
❑ After a successful start-up test,perform a heat run of the generator
❑ Operate the unit at(approximately 145MW) until the generator stator temperatures stabilize To bz hktLtn,.
❑ Record the bearing temperatures as the stator heats up. O,isGr
❑ Record the stator temperatures,identify the hottest temperature sensors,these will become the drivers (o�'ffy,
during normal operation S/1Z' j� l
❑ Record bearing temps G�
❑ Measure the generator air gap as the stator heats up
a in of
❑ Additional Testing and Unit Released for Commercial Ops - Record Time Frame
zonal testing as require comp lance es m ,
Release for Commercial Operation. NtK:7 '—
❑ Final Commissioning Complete, Unit Release for Commercial Operation-Signatures
121 Page
Revised 05/03/2023 Hells Canyon Rewind and Control System Upgrade Commissioning Plan
Internal Use Only

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13 Page
Revised 05/03/2023 Hells Canyon Rewind and Control System Upgrade Commissioning Plan
Internal Use Only