Procedure TitleCompany 1Company 2Action
Plymouth Meeting - Bryn Mawr 130-35 Thermal Switching PE
For thermal overload of the Bryn Mawr - Plymouth Meeting 130-35 138kV line, OPENING the 138kV 865 CB (Low Side of TR#6) @ Plymouth Meeting may provide 15% relief ... 30MVA at 95-D temp set.
Verify switching and confirm that PECO will open if flows approach 100% of the NL rating. 
NOTE:  If peak loads are projected >=8000MW at peak for PE zone, they may not be willing to perform switching.             
Dixonville-Trade City switching option FE-PN
With the Blairsville-Social Hall line opened, actual and contingency overloads may occur on Dixonville-Trade City 115kV line. To mitigate this, and also to prevent additional overloads on Blairsville-Social Hall, look at the alternative switching of opening Seward-Florence and closing Blairsville-Social Hall.
Halifax-Mt Laurel 33C 115kv Thermal Contingency Control DOM
Open Chase City '100912' 115kV CB (Open ends Chase City-Ridge Road)  and  Open Chase City '17112' 115kV CB (Open ends Chase City-Boydton)
                                        OR
Open Chase City '9812' (Open ends Chase City - Lunenburg)
                                        OR
Open Chase City '17112' 115kV CB (Open ends Chase City-Boydton)
                                        OR
Open Chase City '4012' 115kV CB (Open ends Chase City-Northview)
                                        OR
Open Chase City '3312' 115kV CB (Open ends Chase City-Barnes Jct) 
Battleboro-Rocky Mount 115kv Thermal Control DOM CPL
Rocky Mount (CPL) is the limiting end of the line. Confirm ratings/temp set in use with CPL.  Study and coordinate with VACAR RCs and CPL to open the Rocky Mount-Battleboro 115kV line at Rocky Mt if the flow exceeds 100% of LTE and generation at Roanoke Rapids and Kerr Dam is unavailable or limited. This will aggravate overloads on Person-Sedge Hill but there are more controlling options for these overloads. See OM-77 for additional information. 
NOTE: CPL monitors for a single breaker/bus fault at Carolina. The switching solution is applicable to that scenario as well.
Beckjord-Pierce 1889 138kV Line Thermal Control DEOK
At Beckjord, study closing the normally open '821' 138kV CB & open '921' 138kV CB.
Note:  This will load up the Pierce-Beckjord 1887 138kV line, but it should be approximately 6-7% less than the 1889 line contingency.
Peach Bottom #1-500/230kv Xfmr Actual/Contingency Thermal PE
During pumping at Muddy Run actual overloads on the Peach Bottom #1 transformer and/or contingency overloads on Peach Bottom transformer flo Rock Springs-Peach Bottom 5014 or Keeney-Rock Springs 5014 line may be observed. Study closing the reactor bypass circuit switcher at Nottingham.
NOTE:  Closing the bypass may cause contingency on Nottingham - Peach Bottom 220-08 flo Peach Bottom - Conastone 5012 line.               
High Ridge-Howard 2332-A Actual BC
Study opening the Burtonsville (PEPCO) '230K26B' 230kV CB.
 
NOTE: 
  • Switching results in approximately 10% decrease to the actual overload, but may aggravate High Ridge-Howard post-contingency overloads.
  • May also aggravate actual overloads on High Ridge-Sandy Springs-Burtonsville '2314' 230 kV line. To alleviate this, additional switching may be required - study opening the Burtonsville (PEPCO) '230K35B' 230kV CB as well.
 
 
Mountain 23030 Tie Operation UGI
The Mountain '23030TIE' 230kV disconnect is operated as normally opened but can be closed to provide voltage support during an outage of the Mountain - Susquehanna T10 or Mountain - Stanton 230kV lines. If needed, request PPL/UGI to coordinate closing the switch. If/When the disconnect is closed:
   - Activate Contingency: Mountain XF3 (PL) w/ 23030 closed in SA Group #1 only
   - Deactivate Contingency: Mountain XF3 230/66 kV (PL) line in SA Group #1 only
 
NOTE: To open or reclose the 23030TIE disconnect, the Mountain 23010 and 23020 230kV CBs will need to be opened first.
The Mountain '23030TIE' 230kV disconnect is operated as normally opened but can be closed to provide voltage support during an outage of the Mountain - Susquehanna T10 or Mountain -Stanton 230kV lines. If needed, request PPL/UGI to coordinate closing the switch. If/When the disconnect is closed:
   - Activate Contingency: Mountain XF3 (PL) w/ 23030 closed in SA Group #1 only
   - Deactivate Contingency: Mountain XF3 230/66 kV (PL) line in SA Group #1 only
 
NOTE: To open or reclose the 23030TIE disconnect, the Mountain 23010 and 23020 230kV CBs will need to be opened first.
Glendon-Hosensack overload control FE-ME PPL

To control actual and contingency overloads on the Glendon-Hosensack 115kV line, study and coordinate opening the line at Glendon with FE and PPL. 

Yadkin-Deep Creek 115kV Line l/o Yadkin-Greenwich 230kV Line DOM
 
Open the Chesapeake '4622X' 115kV CB  
 
12205 overload control during the 12204 line outage COMED
During an outage of the 12204 138kV line, contingency overloads may occur on the 12205 138kV line for l/o 15616 Nelson-Electric Jct 345kV line. As indicated in the Temporary Operating Guide, utilize the following switching steps prior to initiating off-cost:
Step #1: OPEN the “2-3” 138kV CB at 141 Pleasant Valley
   a.      Provides ~45MVA of relief
   b.     Increases loading on the Nelson – Electric Jct 15502 line for l/o 15616 by ~10MVA
Step #2: OPEN the “12204/12205” 138kV bus tie CB at 123 Marengo
   a.      Provides an additional ~30MVA of relief
   b.     Increases loading on the Nelson – Electric Jct 15502 line for l/o 15616 by ~10MVA.
Step #3: CLOSE the “2-3” 138kV Circuit Switcher at Marengo AND
OPEN the “12204” 138kV Circuit Switcher at 123 Marengo
   a.      Provides an additional ~40MVA of relief.
   b.     Increases loading on the Nelson – Electric Jct 15502 line for l/o 15616 by ~10MVA.
If contingency overloads are trending up rapidly, it may become necessary to implement all steps concurrently.
Doubs-Dickerson H (23102) & Doubs-Aqueduct (23101) 230kv Constraint Control PEPCO APS
Opening either the Dickerson-Quince Orchard (23034) OR Dickerson-Quince Orchard (23032) 230kv lines can be an effective means of controlling the Doubs-Dickerson H and Doubs-Aqueduct flows under most conditions. Opening the 23034 will provide more relief that the 23032, however at PEPCO loads over 6400MWs opening the 23034 may overloads on the Quince Orchard XFs. Therefore, if the PEPCO load is expected to exceed 6400MWs, request the 23032 line opened instead of the 23034.
Dimmick - Port Union 138kV line Thermals DEOK

To mitigate thermal overloads (Actual or SA Thermals) on the Dimmick - Port Union 138kV line the following Cornell Load Transfer may be available:
 -- CLOSE   138kV N.O. ABS 982 @ Cornell
 -- OPEN    138kV ABS 979 @ Cornell                

Brambleton - Loudoun Switching Solution DOM
If contingency overloads are observed on either the Brambleton - Loudoun 2094A or Brambleton - Loudoun 2045A, study opening the Dickerson - Pleasant View 203 line by opening the  7AB CB at Dickerson.
 
If this solution does not cause any additional violation, communicate with Dominion and Pepco to see if switching can be implemented and does not cause either company any additional violations.   
Bedington-Nipetown 138kV thermal control APS
Open Catoctin 138kV Breaker @ Ringgold
AND/OR Opening Nipetown xfmr loads as needed
Confirm all appropriate switching with APS
Whitpain #1 500/230kV Xfmr thermal control PE
Study opening Whitpain '285' & '475' 500kV CBs
Halfway - Marlowe 138kV Thermal Overload/Contingency APS

For a post-contingency thermal on the Halfway - Marlowe 138kV line, consider the following switching solution:

 Option A:   OPEN 138kV  Ringold CB @  Reid

Option B:   OPEN 138kV  Antietam  CB @  Reid

For a post-contingency thermal on the Halfway - Marlowe 138kV line, consider the following switching solution:

Option A:   OPEN 138kV  Ringold CB @  Reid

Option B:   OPEN 138kV  Antietam  CB @  Reid

For an actual on the Halfway - Marlowe 138kV line, consider the following switching solution:

Option A:   OPEN 138kV  Ringold CB @  Reid

Option B:   OPEN 138kV  Antietam  CB @  Reid

For an actual on the Halfway - Marlowe 138kV line, consider the following switching solution:

Option A:   OPEN  138kV  Ringold CB @  Reid

Option B:   OPEN  138kV  Antietam  CB @  Reid     

Maliszewski-HyattCS Circuits Contingency Control AEP For contingencies occurring on the Maliszewski-HyattCS lines, one for the loss of the other, study or request the 138kV breaker RK1 at Maliszewski be opened to help alleviate post-contingent flows.
North Anna #5 500/230kv Xfmr L/O Louisa-Gordonsville 2088 DOM
Depending on South Anna & Louisa CT loading, you may have an overload on the North Anna #5 Xfmr.  Study opening the LouisaCT 'G12T2074' 230kV CB
Brunner Island-Yorkana 1055 230kV Line Thermal Control PPL FE-ME
Study closing the Brunner island 'WHEM' 230kV CB.  This will bypass Brunner Island-West Hempfield reactor.  May provide about 15% of relief.
 
NOTE: Flow on Brunner Island-West Hempfield will increase
Edinburg-Strasburg 138kv or Edinburg #3 138/115kv Xfmr Thermal Contingency Control APS DOM
To control overloads on the Edinburg-Strasburg 138kv or Edinburg #3 138/115kv Xfmr , consider the following switching solution:
 
   OPEN 138kV Bus Tie CB @ Strasburg       
Carroll - Germantown/Germantown Transformer 138 kV Actual & Post-Contingency Control FE-ME APS
1.) Study opening 'B1' 115 kV CB @ Germantown on a pre-contingency basis.
2.) Contact FE-E and AP (FE-S) to determine if conditions permit opening the line.
3.) If agreed by all PJM Members (PJM, FE-E, and FE-S), instruct First Energy to perform the switching.

Note: Carroll-Germantown is a tie between two FE operating companies handled by different local control centers - Fairmont (APS) and Akron (FE-E). 
Smithton-Yukon 138 kV Thermal Overloads APS

To control overload on the Smithton - Yukon#2 138 kV for l/o Charleroi - Yukon or any other contingency, consider the following switching solution:

  Option 1 - OPEN   138kV Y21 and Y22 CB   @ Yukon

 Option 2 - OPEN    138kV Belmon CB @ Charleroi

 Option 3 - OPEN   138kV Shepler Junction CB @ Mitchell

 NOTE:   Will also alleviate loading on the Yukon Double Transformer contingencies.

To control overload on the Smithton - Yukon#2 138 kV for l/o Charleroi - Yukon or any other contingency, consider the following switching solution:

 Option 1 - OPEN   138kV Y21 and Y22  CB  @ Yukon

 Option 2 - OPEN  138kV Belmon CB @ Charleroi

 Option 3 - OPEN  138kV Shepler Junction CB @ Mitchell

  NOTE:  Will also alleviate loading on the Yukon Double Transformer contingencies. 

   

Face Rock TX#2 Overloads PPL BC
An actual overload has been detected on the Face Rock #2 xfmr.  The normal switching option is to open the 115kV "110KVTIE" CB at Five Forks to clear the actual.  Notify PL before performing switching.

A post contingency overload has been detected on the Face Rock #2 xfmr  The normal switching option is to open the 115kV "110KVTIE" CB at Five Forks to mitigate the overload  Notify PL before performing switching.

Greene Transformer Thermal Control DAY
When faced with a contingency on either Greene Transformer loss of the other, opening the 'B' 138kV circuit breaker at Greene may help. Study opening the 'B' breaker at Greene and confirm switching is agreeable with Dayton under current system conditions.
High Voltage: Ox-Glebe switching DOM
High voltage has been detected at the Ox and/or Glebe 230 kV stations, study opening the Glebe-Virgina Hills-Ox (248A/248B) 230 kV line for voltage control. If voltages are still high after taking line 248A/248B out of service, study openning one Braddock-Allendale underground line (297 or 294 line). Dominion may need to close the Allendale 34.5 kV tie CB.
Mahans Lane-Tidd Contingency Control AEP APS
Study:
Opening Weirton-Carnegie 224 and Weirton-Mahans Lane 202 both at Weirton
                                   OR
Open the Tidd 'C' 345/138kV Xfmr Reactor Bypass CB (May increase loading on Wylie Ridge)
Germantown-Straban 998 115kV line contingency control FE-ME APS
For control of the Lincoln-Straban-  998 line, study opening the Germantown 'B1' 115kV CB.
Note:  FE-Fairmont (APS) should be notified prior to switching.  Opening the 'B1' will open the Germantown-Taneytown tie between ME & APS.
MiamiFort-Willey 138kV Post Contingency Switching DEOK
If trends are seen on MiamiFort-Willey '9784' 138kV line, study opening Mt Healthy '960' 138kV CB.
Delawaim - Hogan - Cross Tap - Madison 138 kV Actual and Contingency Overloads AEP
If actual overloads are seen on any part of the Delawaim - Hogan - Cross Tap - Madison 138 kV line study the following options:
1.) Open the Delawaim "T" 138kV bus tie CB,OR
2.) Open the Delawaim "U" 138kV CB, which opens the Hogan-Delawaim 138kV line.  
3.) Open the Hogan "A" 138kV CB, which opens the Hogan - Crosstap 138kV line. 
If post-contingencyoverloads are seen on any part of the Delawaim - Hogan - Cross Tap - Madison 138 kV line study the following options:
1.) Open the Delawaim "T" 138kV bus tie CB,OR
2.) Open the Delawaim "U" 138kV CB, which opens the Hogan-Delawaim 138kV line.
3.) Open the Hogan "A" 138kV CB, which opens the Hogan - Crosstap 138kV line.
Northwood #6 Xfmr Thermal Control FE-ME
Study opening:     Belfast '95262' 115kV CB
                                          OR
                               Gilbert 'A911' 115kV CB
Gardners-TexasEastern Constraint Control FE-ME
For overloads on Gardners-Texas Eastern 115kV line study and request the following possible switching:
  • Open Roxbury # 2 138/115kV xfmr

 

Wescosville #3 500/138kV Xfmr Thermal Actual PPL
The Wescosville T3 transformer may be opene for constraint control. Confirm the actual flow on the low side of the Wescosville T3 XF vs the normal rating before requesting any switching be implemented. To control, study placing the Wescosville #5 230/138kV Xfmr in service. PPL applied the Wescosville XF ratings to the low side of the transformer. However, the EMS may alarm/trend based upon the high side transformer flow. As a result, PJM may solve ~4% higher than PPL.
Grottoes-Elkton DP 115kV L/O Elmont-Cunningham 500kV Switching DOM
For overloads on Grottoes-Elkton DP 115kV L/O Elmont-Cunningham, study opening both the 12812 CB at Edinburg and the Page CB at North Shenandoah. Discuss with Dominion and FE-South about performing the switching.
Bergen - North Bergen Switching Solution PS
Study closing the M1339BYP disc at Bergen 138KV to relieve Bergen – N. Bergen.  This will help in allowing Bergen 1 MOD’s to load.           
Fredericksburg-Cranes Corner contingency switching DOM
For contingency on Fredericksburg-Cranes Corner 230kV line, study opening the Aquia Harbor '252T2104' 230kV CB.  If switching corrects contingency, contact Dominion to see if switching is feasible.
Carlisle-Hutching 69kV Thermal Issues DAY
Study opening the Hutching 'BT-SW' & 'BT-NW' 69kV CBs.
 
NOTE:  'BT-NW' 69kV CB may already be opened, because it is a normally open CB.
Babb-Evans 138kV Thermal Constraint FE-ATS
If overloads are seen East Akron-Evans or Babb-Evans 138kV line, study opening Babb '2' 138kV CB or Evans "B110".  This open ends the Babb-Evans 138kV line. 
Buxmont-Hosensack 230kv Thermal Contingency Control PPL FE-ME
Study opening the Buxmont Tie 230kV CB & the Buxmont #1 230/69kV Xfmr.
 
PPL & PECO must approve this switching.
Plymouth Mtg-Whitpain 230-13 contingency control PE To control overloads on the Plymouth Meeting-Whitpain 230-13 230kV line, study opening the Plymouth Meeting 125 or 215 230kV CB.
Butler-Karns City switching option APS To control overloads on the Butler-Karns City 138kV line, study opening the Burma-Kissenger Jct line at Burma.
Controlling overloads on the Waterman-38L11323 Z1 138kV Series Device COMED

From OM58, to control overloads on the 113 Waterman-38L11323 Z1 138kV line for l/o 345L15616 or 15502 lines: 

  1. The PJM Dispatcher and ComEd RC will monitor the actual and contingency loading on the Waterman 11323 Z1 138kV line section, as well as the output of the Lee-Dekalb (57% hurt) and the Mendotta Hills wind farms (46% hurt)
  2. As contingency loading on the 11323 Z1 reaches 95% of the emergency limit, the PJM Dispatcher will study removing one or both 113 Waterman capacitors from service. This may reduce VAR flow on the 11323 Z1 device and provide ~7MVA per cap help.
    • NOTE: The Lee-Dekalb wind farm is both capable and normally set to auto control to the 138kV voltage.
  3. As contingency loading on the 11323 Z1 reaches 95% of the emergency limit, the PJM Dispatcher will contact the ComEd RC and studying opening the Waterman ‘ ’ 138kV CB.
    • Studies show this will provide approximately 90MVA of contingency relief.
  4. If the studies agree and there are no other concerns projected for the next 24hours (weather, conflicting outages, low voltages in the area, etc) the PJM Dispatcher will direct the ComEd RC to open the Waterman ‘1-2’ 138kV CB.
  5. If additional relief is required, the PJM Dispatcher will dispatch the 961 Lee-Dekalb wind farm down to control flows within limits.
  6. NOTE: Prior to reclosing the Waterman 1-2CB, the PJM and ComEd dispatchers should give consideration to the projected wind output for the next several days. If the breaker switching will be required again in the near term, and there are no operational concerns, the CB can be left open to avoid unnecessary wear and tear on the equipment.
  7. If the studies show that the switching is not a valid option, due to weather, conflicting outages, projected low voltages, etc, the PJM Dispatcher will dispatch the 961 Lee-Dekalb wind farm down.
  8. If Additional relief is required, the PJM Dispatcher will reduce dispatch the 139 Mendotta Hills wind farms down.
  From OM58, if the Waterman L1106 CB switching has already been performed and the Waterman caps have been removed from service (if helpful to reduce VAR flow), the only remaining controlling actions are to reduce the 961 Lee-Dekalb Wind farm (58% hurt) and the Mendotta Hills wind farms (46% hurt) to control overloads on the 113 Waterman-38L11323 Z1 138kV line.

From OM58, to control overloads on the 113 Waterman-38L11323 Z1 138kV line for l/o 345L15616 or 15502 lines: 

  1. The PJM Dispatcher and ComEd RC will monitor the actual and contingency loading on the Waterman 11323 Z1 138kV line section, as well as the output of the Lee-Dekalb (57% hurt) and the Mendotta Hills wind farms (46% hurt)
  2. As contingency loading on the 11323 Z1 reaches 95% of the emergency limit, the PJM Dispatcher will study removing one or both 113 Waterman capacitors from service. This may reduce VAR flow on the 11323 Z1 device and provide ~7MVA per cap help.
    • NOTE: The Lee-Dekalb wind farm is both capable and normally set to auto control to the 138kV voltage.
  3. As contingency loading on the 11323 Z1 reaches 95% of the emergency limit, the PJM Dispatcher will contact the ComEd RC and studying opening the Waterman ‘1-2’ 138kV CB.
    • Studies show this will provide approximately 90MVA of contingency relief.
  4. If the studies agree and there are no other concerns projected for the next 24hours (weather, conflicting outages, low voltages in the area, etc) the PJM Dispatcher will direct the ComEd RC to open the Waterman ‘1-2’ 138kV CB.
  5. If additional relief is required, the PJM Dispatcher will dispatch the 961 Lee-Dekalb wind farm down to control flows within limits.
  6. NOTE: Prior to reclosing the Waterman 1-2CB, the PJM and ComEd dispatchers should give consideration to the projected wind output for the next several days. If the breaker switching will be required again in the near term, and there are no operational concerns, the CB can be left open to avoid unnecessary wear and tear on the equipment.
  7. If the studies show that the switching is not a valid option, due to weather, conflicting outages, projected low voltages, etc, the PJM Dispatcher will dispatch the 961 Lee-Dekalb wind farm down.
  8. If Additional relief is required, the PJM Dispatcher will reduce dispatch the 139 Mendotta Hills wind farms down.
Marengo 12204/12205 138kV Bus Tie Operation COMED

During outages of 138kV lines 15624 or 14106, the normally open 12204/12205 CB at 123 Marengo should be closed.  Confirm with ComEd.  Refer to ComEd SPOG 2-2-B.
 

Shelby-Sydney 138 kV thermal control DAY

During high load condition an actual or contingency overload can occur on the Shelby-Sidney 138 kV line for l/o miami-Staunton-Eldean.

To mitigate this overload study opening either low side CB "BLS" of the #2 354/138 kV Shelby transformer or low side CB "BLN" of the #1 354/138 kV Shelby transformer. Confirm switching with Dayton prior to implementation.


This constrain is expected to be addressed in 2016, by re-conductoring Shelby-Sidney 138 kV line PJM baseline upgrade b1268.   
502 Junction 500/138kV Transformer thermal control APS

 To control overloads on the 502 Junction 500/138kV Transformer, consider the following switching solution:

 OPEN the 502 Junction #2 500/138 kV transformer

To control overloads on the 502 Junction 500/138kV Transformer, consider the following switching solution:

  OPEN  the 502 Junction #2 500/138 kV transformer

Dravosburg-West Mifflin Z-73 Contingency Control DUQ
For control of Dravosburg-West Mifflin Z-73 thermal issues, the following switching should be studied & implemented if PJM & Duquesne are in agreement:
   1.   Open the West Mifflin 'USSTEEL3' 138kV CB
   2.   Open the Mitchell '2-3' 138kV CB (FE-South will need to agree to this switching)
   3.   Open the Dravosburg 'BRENTWOO' 138kV CB (This open ends Dravosburg-Brentwood Z-70)
****All three options can be used together.
Tiltonsville-Windsor contingency control AEP APS

To alleviate contingency overloads on the Tiltonsville-Windsor 138kV line, evaluate opening either one or both of the below facilities, confirm switching with FE Sout:

  • Open at Windsor the Lagonda CB
  • Open at Cecil the Buffalo Junction C
Maliszewski Xformer 1 Switching Solution AEP

 With high flows on Maliszewski Transformer, open the bypass RK1 CB to put reactor in service and relieve flow. Discuss with AEP.

With high flows on Maliszewski Transformer, consider opening the bypass RK1 CB to put reactor in service and relieve flow. Discuss with AEP.
Jackson #4 230/115kV Xfmr Contingency Control Thermal Contingency Control FE-ME
Study opening the JacksonME 'B17' 115kV CB
Chesapeake-Reeves Ave 164A thermal control DOM
Study opening the Reeves Ave '9412' 115kV CB
Cecil-Glasgow 138kv Thermal Contingency Control DPL
With the Colora-Conowingo 220-88 out of service, study opening the Colora '235' 230kV CB. 
If this is a viable switching option, also have DPL disable the automatic load transfer for the Colora T1 & T2 230/35kV Xfmrs.  This will allow the T1 load to be dropped on the loss of the 220-01 line.
Elroy-Hosensack 5028 500kV Outage Control of Alburtis #1-500/230kv Xfmr or Wescosville #3-500/138kv Xfmr PPL FE-ME
With Elroy-Hosensack out of service, overloads may occur on the Wescosville 500/138kV XF. Study opening the Wescosville #3 500/230kV Xfmr for control. This may overload the Alburtis 500/230kV XF, which would also require that XF to be opened.
With Elroy-Hosensack out of service, overloads may occur on the Alburtis 500/230kV XF. Study opening the Alburtis #1 500/230kV Xfmr for control. This may overload the Wescosville 500/138kV XF, which would also require that XF to be opened.
Wescosville T3 Outage and Switching PPL

IEP has detected that the Wescosville T3 transformer is out of service. If there are contingency low voltages in the area 138 kV system, study closing the Hosensack-Wescosville 230 kV line to alleviate. 

Greentown-Grant & Greentown-MierPSI 138kV lines Thermal Control AEP MISO
From Manual M-03,
   1. Study opening Greentown 'C' & 'E' 138kV CBs.  MISO & AEP must approve switching.
   2. CTs in the "IMPA" zone of AEP (Sanderson, 21WVSTA and RICHMOPK), which are PJM Market units, should be run.
   3. Issue a PCLLRW with a potential post-contingency solution of opening the Deer Creek 'D' 138kV CB
From Manual M-03,
   1. Study opening Greentown 'C' & 'E' 138kV CBs.  MISO & AEP must approve switching.
   2. CTs in the "IMPA" zone of AEP (Sanderson, 21WVSTA and RICHMOPK), which are PJM Market units, should be run.
   3. Issue a PCLLRW with a potential post-contingency solution of opening the Deer Creek 'D' 138kV CB
Hutching - Sugar Creek thermal control DAY
For actual or contingency overloads on Hutching - Sugar Creek, investigate opening the low side of the Crown transformer (CB BL-7)
 
Lockwood-Shicksville Actual Overload AEP
To control flows on the Lockwood-Shicksville 138kV line, AEP will normally open the Lockwood 'A' 138kV CB.
If this option is not feasible, study opening the Richland 'B13246' 138kV CB.
Dan River-Ridgeway138kv Actual Thermal Control AEP DUKE Consider opening the 'U' and/or the 'V' 138kV CBs. This will place the corresponding series reactors in service.
Todd Hunter 345/138kV Transformers DEOK
For an Actual Overload of any Todd  Hunter 345/138kV Transformer, or any contingency loss which would leave only one Todd Hunter 345/138kV Transformer in service, the creation of radial load pockets on the Todd Hunter 138kV and 69kV network may be required to alleviate congestion.
 
System conditions will dictate whether one or all of the following switching options may be implemented:
A.    Radialize Beckett load
   1. OPEN Todd Hunter 935 and 937 138kV CBs
   2. OPEN Beckett 869 138kV ABS
   3. CLOSE Todd Hunter 935 & 937 138kV CBs
B.    Radialize Millikin load
   1. OPEN Todd Hunter 929 and 931 138kV CBs
   2. OPEN Millikin 952 138kV ABS
   3. CLOSE Todd Hunter 929 and 931 138kV CBs
C.  Radialize Nickel load
   1. OPEN Warren 872 138kV CB
D.    Radialize Clinton County load to AEP’s Hillsboro substation
   1. OPEN Warren 873 138kV CB
E.   Radialize Trenton area load to AEP’s College Corner substation
   1. OPEN Trenton 806 138kV CB
F.   Isolate Carlisle 69kV
   1. OPEN Carlisle 952 138kV CB (High-Side of Carlisle 138/69kV #2 transformer)
G. Isolate Shaker Run and Foster area loads
   1. OPEN Shaker Run 824 and 828 138kV CBs
   2. OPEN Foster 961 138kV CB
   3. OPEN Foster 967 138kV CB
   4. CLOSE Cornell 982 138kV ABS
   5. OPEN Cornell 980 138kV ABS
   6. OPEN Dimmick 830 138kV ABS

 

ToddHunter-Trenton 138kV switching option DEOK AEP
To control overloads on the ToddHunter-Trenton 138kV line, study and coordinate with Duke to open the Trenton '808' 138kV CB.
Harwood-Siegfried 230kV Line Switching PPL
IEP has detected contingency overloads on one of the following PL North 230 kV lines:
  • Susquehanna - Harwood #1 230kV line, or
  • Susquehanna - Harwood #2 230kV line, or
  • Martins Creek - Siegfried #2 230kV line

Study opening the Harwood-Siegfried 230kV line at Siegfried prior to initiating off-cost.

Ridgeland 138kv 4-14 Bus Tie CB Operation COMED

The normally open 138 kV Bus Tie 4-14 at Ridgeland TSS 192 should be closed for the outage of either 138 kV red line L1315 (Ridgeland-Crawford) or 138 kV line L5105 (McCook-Ridgeland) to maintain service continuity to the Ridgeland transformers for subsequent contingencies.

The combined outage of line L1315 and line L5105 can result in the loss of supply to the two 138/69 kV transformers. Additionally, the outage of 138 kV line L5105 may cause thermal contingency overload on TR 83 at Station 13_Crawford. (SPOG 2-25)

Doubs - Lovettsville - Millville 138 kV line overloads APS
If any part of the Doubs - Lovettsville - Millville 138 kV line will overload for l/o any contingency, consider opening the line.  The line is typically opened via the 'LOVETTSV' 138 kV CB at Millville, but can also be opened via the 'LOVETTSV' 138 kV CB at Doubs. 
Leslie-Stinnett-Pineville 161kv Actual Thermal Control AEP TVA Consider placing the Leslie series reactor in service.
Harwood-Siegfried line switching for Siegfried T5 PPL

IEP has detected contingency overloads on Siegfried T5 for l/o Siegfried yard span. Study opening the Harwood-Siegfried 230 kV line at Siegfried prior to initiating off-cost.    

Glenarm-Windy Edge 110512 Early Binding/Control BC
Due to the extreme volatility of the constraint and the slow response of Steam generation in BGE/PEPCO, the following steps should be taken, especially if we are going into a load pick-up period:
1.)Study switching the 110512 and 110511 115kV CBs at Five Forks or 110512 115kV CB at Windy Edge West and the 110511 115kV CB at Windy Edge East. If BC approves this switching this should be implemented prior to going off cost. Note that this switching aggravates loading on Conastone-Northwest 2322 230kV for which better Generation D-Fax is available for off cost operations.
2.) If the above switching is unavailable, bridge the Glenarm-Windy Edge 110512 constraint to SCED and set the binding % to 90%.
- This will help get the BGE/PEPCO steam moving up, while not raising the over Mid Atl generation that is a hurt.
3.) Enter the HYDRO schedules in SCED.
- Hydro has a major impact on this constraint. SCED treats Hydro as fixed gen if no schedule is entered.
- Consider taking impacting Hydro generation off regulation as needed.
4.) If by entering the constraint in SCED early there is concern about managing transfers, also bridge a Transfer Interface to SCED early.
5.) If a manual dispatch is needed to move the BC/PEPCO generation for this constraint, ensure that once the constraint is under control, action is taken to end the manual dispatch, and resume control using SCED to properly set price for the units.  
Gilboa - Enon Tap 138kV line Overload Mitigation APS AEP

To control overloads on the Gilboa-Enon Tap 138kV line, consider the following switching solution:  

  Option 1 - OPEN  'P' 138kV CB @ Kanawha River (AEP)

  Option 2 - OPEN  'Bays' 138kV CB @ Powell Mountain

 Note: if the 'Bays' 138 kV CB @ Powell Mountain is open it might not be possible to switch in-service the Sutton 138kV capacitor bank.   

 

To control overloads on the Gilboa-Enon Tap 138kV line, consider the following switching solution:  

 Option 1 - OPEN  'P' 138kV CB @ Kanawha River (AEP)

Option 2 - OPEN  'Bays' 138kV CB @ Powell Mountain

Note: if the 'Bays' 138 kV CB @ Powell Mountain is open it might not be possible to switch in-service the Sutton 138kV capacitor bank

Buckingham-Pleasant Valley control PS PE
 To control, consider the following options:
   1.) Open Buckingham-Rocktown @Buckingham via the '230'CB
         - May create contingency overloads Emilie-Falls and other PE 138kV facilities .
   2.) Open the Pleasant Valley-Lawrence F-1020 line via the Pleasant Valley 'SECT2-3' CB
         - Provides ~30% relief, but may bring up contingencies on Pleasant Valley-East Flemington
   3.) Split the Buckingham 230kV bus via the '220' CB.
         - Provides ~20% relief
Confirm switching option with both PECO and PSEG. If switching is not an option, PS generation is all an 8% raise help.
With Branchburg-Elroy 5017 500kV line out of service, overloads may be seen on Buckingham-Rocktown-Pleasant Valley. To control, consider the following options:
   1.) Open Buckingham-Rocktown @Buckingham via the '230'CB
         - May create contingency overloads Emilie-Falls and other PE 138kV facilities.
   2.) Open the Pleasant Valley-Lawrence F-1020 line via the Pleasant Valley 'SECT2-3' CB
         - Provides ~30% relief, but may bring up contingencies on Pleasant Valley-East Flemington
   3.) Split the Buckingham 230kV bus via the '220' CB.
         - Provides ~20% relief
Confirm switching option with both PECO and PSEG. If switching is not an option, PS generation is all an 8% raise help.
Cherry Valley TR81 Switching Options COMED

When there is a actual or contingency overload on the Cherry Valley TR81, verify potential switching options with ComEd. The switchings are on the 138 kV along the L12204 and L12205 lines such as closing the Marengo bus tie CB and opening the Belvidere 1-2 and 3-4 138 kV CBs.   

1 Lasalle-0108 Line 138kv Thermal Contingency Control COMED
Open 77 Mazon '0108/1205' 138kV CB
Cherry Valley Transformer Switching Options COMED

When there a contingency overload on a Cherry Valley transformer for the loss of another transformer or the loss of Cherry Valley-SilverLake 345 kV line, verify with ComEd on possible switchings on the 138 kV system to alleviate. The switching are typically along the 12204 and 12205 138 kV lines, such as closing Marengo bus tie CB and opening Belvidere 1-2 and 3-4 138 kV CBs. (Check and call on Rockford before switching) 

When there a contingency overload on a Cherry Valley transformer for the loss of another transformer or the loss of Cherry Valley-SilverLake 345 kV line, verify with ComEd on possible switchings on the 138 kV system to alleviate. The switching are typically along the 12204 and 12205 138 kV lines, such as closing Marengo bus tie CB and opening Belvidere 1-2 and 3-4 138 kV CBs. (Check and call on Rockford before switching) 

When there a contingency overload on a Cherry Valley transformer for the loss of another transformer or the loss of Cherry Valley-SilverLake 345 kV line, verify with ComEd on possible switchings on the 138 kV system to alleviate. The switching are typically along the 12204 and 12205 138 kV lines, such as closing Marengo bus tie CB and opening Belvidere 1-2 and 3-4 138 kV CBs.  

West End-Fostoria 138kV Line Thermal Control for double circuit l/o Fostoria-Lemoyne & Fostoria-Lallendorf 345kV Lines AEP

Study opening the Fostoria 'B' & 'B2' 345kV CBs. This will open end the Fostoria- E. Lima 345kV line, & should immediately reduce transfers to MECS. 'B' & 'B2' CBs should be reclosed as soon as possible.  

Howard-North Belleville Contingency Control AEP

For contingency control on the Howard-North Belleville 138kV line, study opening the Howard 'H' 138kV CB

Belmont 500 kV Single Breaker Outages APS

IEP has detected that the Belmont BL12 500 kV CB is open, refer to the M-3 Belmont procedure and request FE South to open the Belmont BL 500 kV CB. The switching is required to address potential stuck breaker scenario that may cause a Pleasants stability issue.

IEP has detected that the Belmont BL10 500 kV CB is open, refer to the M-3 Belmont procedure and request FE South to open the Belmont BL9 500 kV CB. The switching is required to address potential stuck breaker scenario that may cause a Pleasants stability issue

IEP has detected that the Belmont BL9 500 kV CB is open, refer to the M-3 Belmont procedure and request FE South to open the Belmont BL10 500 kV CB. The switching is required to address potential stuck breaker scenario that may cause a Pleasants stability issue

IEP has detected that the Belmont BL7 500 kV CB is open, refer to the M-3 Belmont procedure and request FE South to open the Belmont BL12 500 kV CB. The switching is required to address potential stuck breaker scenario that may cause a Pleasants stability issue

Yukon 500/138 Transformer 3 Overload APS

There are multiple switching options available to control the loading on the Yukon 500/138kV #3 transformer. The switching can be implemented in any order necessary. Study the following and coordinate with appropriate TOs:

a. Study opening the Peters 138kV 'Union Jct' CB 

b. Study opening the Yukon 138kV  '3' and '5' CBs along with Youngwood 138kV 'Yukon' CB

c. Study opening Mitchell 138kV 'Wilson' CB 

Sedge Hill Xfmrs or Sedge Hill 296-Persons Thermal Control DOM

To control contingency overloads on Sedge Hill #1 Xfmr, Sedge Hill #2 or Persons - Sedge Hill 230kV lines, study opening Chase City '3312' 115kV CB. (Open ends Chase City-Barnes Jct)    

Sedge Hill-Plywood 151 Contingency Control DOM

****Dominion request that this action is performed prior to an issuance of a PCLLRW, (i.e. off-cost measures to be performed first, prior to using switching)****

To control loading on the Sedge Hill-Plywood 151 115kV line, the Sedge Hill '15102 & 151T1016' 115kV CBs can be opened; this will open the Sedge Hill-Plywood 151 line. 

Millwood-North Bellville Contingency Control AEP

IEP has detected the Millwood-North Belleville constraint is at or above 95% of the LTE.  Study switching the Howard 'H' 138kV CB.  If this will clear the constraint, contact AEP to see if this switching is available

Grand point-Roxbury Switching Solution FE-PN

[duplicate].

LaGrange ¿ North LaGrange Contingency Control AEP

For contingency control of Lagrange - North LaGrange 69 kV, study opening of Sturgis A 69 kV CB or Sturgis B 69kV CB

Grand point-Roxbury Switching Solution FE-PN

For overloads on Roxbury TX2 or Roxbury - Grand Point 138kV path, study opening the Roxbury 'Grand Pt' 115kV CB and (if needed) closing the N.O. Shade Gap 'B3' 115kV CB.

Coordinate with FE-E and FE-S.  

Muskingum - S Caldwell 2 Switching Control AEP

For contingency overloads on Muskingum River - S Caldwell 2 138kV line l/o Muskingum River - S Caldwell 1? 138kV line, study opening the S Caldwell 'B' 138kV CB as a pre-contingency switching solution.  

Sedge Hill-Mt Laurel 33C 115kv Line Thermal Control DOM
For overloads on the Sedge Hill-Mt Laurel 33C 115kv line:
 
Open Chase City '100912' 115kV CB (Open ends Chase City-Ridge Road)  and  Open Chase City '17112' 115kV CB (Open ends Chase City-Herbert)
                                        OR
Open Chase City '9812' (Open ends Chase City - Lunenburg)
                                        OR
Open Chase City '17112' 115kV CB (Open ends Chase City-Herbert)
                                        OR
Open Chase City '4012' 115kV CB (Open ends Chase City-Northview)
                                        OR
Open Chase City '3312' 115kV CB (Open ends Chase City-Barnes Jct)       
 
Graceton - SafeHarbor 2303 230kV Thermal Control BC

For thermal constraints on Graceton - Safe Harbor 2313, study opening the Graceton '2303' and '2313' 230kV CBs.   Typically this switching should be evaluated if control issues are being seen on this constraint (i.e. volatility or uncontrollable).  Check with the RE prior to switching to ensure no N-1-1 concerns exist (OM-032).         

Prince George 230/115kV TX1 overload DOM

The Prince George 230/115kV TX1 is trending on post-contingency basis. Dominion can SCADA switch the Prince George - Poe 115kV line though the switching is limited to a 4 hour duration without opening the line disconnects. If the switching is required for an extended period of time, discuss the option of sending switch personnel and opening line disconnects. Dominion will evaluate the feasability of the long term switching, which will include evaluating increased risk to load loss. If the Prince George - Pie 115kV line is opened, whether for 4 hours or for extended duration, Dominion will need to submit an eDART ticket or the EMS Trip Ticket will need to be converted to a Pre-Contingency Switching ticket. 

Blairsville East-Social Hall Switching Solution FE-PN

IEP detects an overload on Blairsville East-Social Hall. Study opening the tie and coordinate with FE South and FE East.

Foster 1357 CB Switching DEOK

IEP detects a post-contingency overload on Foster 345 kV CB ‘1357’. Study opening the breaker and coordinate with DEOK. 

Beaumeade-Ashburn 227 & 274 Contingency Control DOM

 If contingency overloads are observed on either the Beaumeade-Ashburn-PleasantView 274 or Beaumeade-Ashburn-Cochranmill 227, consider the following switching solution:

Open Belmont (DOM) '201T2180' and ‘227T2178’ 230kV CBs 

                                        OR

Open Pleasant View ‘L3T203’ and ‘L3T2180’ 230kV CBs (Opens Pleasant View TX3)

Garrett-Garrett Tap Overload Switching APS

IEP has detected a potential overload on Garrett-Garrett Tap. Study opening the transfomer and line. Switching would need to be coordinated between FE South and FE East

Blairsville East-Social Hall Switching Solution FE-PN

IEP detects an overload on Blairsville East-Social Hall. Study opening the tie and coordinate with FE South and FE East.

Foster 1357 CB Switching DEOK

IEP detects a post-contingency overload on Foster 345 kV CB ‘1357’. Study opening the breaker and coordinate with DEOK. 

Garrett-Garrett Tap Overload Switching APS

IEP has detected a potential overload on Garrett-Garrett Tap. Study opening the transfomer and line. Switching would need to be coordinated between FE South and FE East

Susquehanna 500 kV Switching Option PPL

IEP has detected that the Susquehanna “SUNB_2-S” CB is open, study opening the Susquehanna “WESC-N” CB to prevent the scheme from operating in a stuck breaker scenario. Refer to M-3 Susquehanna Switching Option procedure.   

 

IEP has detected that the Susquehanna “SHIC” CB is open, study opening the Susquehanna “WESC-S” CB to prevent the scheme from operating in a stuck breaker scenario. Refer to M-3 Susquehanna Switching Option procedure.  

 

Miamifort-Clifty Creek 138 kV line Switching Option DEOK

IEP has detected an actual or contingency overload is trending on the Miamifort-Clifty Creek 138 kV line. For an overload condition, study opening the line to mitigate. Request DEOK to open the Miami Fort 138 kV breaker #927. 

Bethel - Riverton RLU Switching APS

For overloads of the Bethel - Riverton RLU line for L/O MtStorm - Valley, study opening the 138 kV BUSTIE circuit breaker at Page. 

East Towanda-East Sayre Contingency Control FE-PN

IEP has detected post-contingency flow on the East Towanda-East Sayre 115kV line is at 95% of the LTE rating.  Study opening the North Waverly 115kV CB at East Sayre; this will open end the Easy Sayre-North Waverly 115kV lin.  If no issues are seen, coordinate with NYISO to open the CB.

Maple B18 and B22 Switching Solution FE-ATS

If contingency overloads are observed on Jackson - Maple 138kV, study opening the B18 and B22 CB at Maple.

If contingency overloads are observed on Krendale - Shanor Manor 138kV, study opening the B18 and B22 CB at Maple.

If contingency overloads are observed on Hoytdale - Maple 138kV, study opening the B18 and B22 CB at Maple.

Greentown Transformer Loading AEP

IEP detected a contingency exceedance on Greentown T1 765/138kV. Study opening Greentown 138kV CBs 'E' and 'C1' or Greentown 138kV CBs 'E' and 'C' for contingency control. Coordinate with AEP and MISO. Refer to MISO's Standing Op guide 2014-S-041-C for more information. 

IEP detected a contingency exceedance on Greentown T2 765/230/138kV. Study opening Greentown 138kV CBs 'E' and 'C1' or Greentown 138kV CBs 'E' and 'C' for contingency control. Coordinate with AEP and MISO. Refer to MISO's Standing Op guide 2014-S-041-C for more information.