TEMPORARY OPERATING INSTRUCTION / No. / 15-247R1

O.O.

/ 15-09876 (G37C)
15-03483 (Pra-Ram)
15-11142 (GF-Pick)
15-11143 (Jam-Pick) /

MISO No.

/ 1-09135918
1-05550745
1-09195778
1-09195779 /

File No.

/

240803

Name of Outage: / 230 kV Line G37C (Glenboro – Cornwallis) and,
230 kV Line Prairie-Ramseyand,
230kV Line Grand Forks-Pickert and,
230kV Line Jamestown-Pickert
Effective Dates: / 2015-11-18from0900 to1000 CST
(2015-11-18 from 1000 to 1100EST)
Standing Guide Reference: / MHEX – USA Special Study as per K. Long 2015-10-21
Description of Work: / G37C (MHEB) –Structure Repairs
Prairie – Ramsey (GRE) – Rebuild Line
230kV Line Grand Forks-Pickert (WAPA)
230kV Line Jamestown-Pickert (WAPA)
TRANSFER LIMITS:
MH-USA South (MH Export)
SOL: / 1750 / Schedule Limit / 1525
Location / RM / CRSG / OM / Schedule Limit
TTC / Transfer (SOL) / Firm / Non-Firm
USA / 1750 / 0 / 1750 / 150 / 75 / 1525 / 0 / 1525
MH-USA North (MH Import)
IROL / 850 / SOL: / 700 / Schedule Limit / 650
Location / RM / CRSG / OM / Schedule Limit
TTC / Transfer (SOL) / Firm / Non-Firm
USA / 700 / 0 / 700 / 0 / 550 / 150 / 500 / 650
TLR Triggers / South TLR 1 / South TLR 3 / North TLR 1 / North TLR 3
1568 / 1600 / 651 / 665
MISO Webtool Postings /
MISO Webtool Postings / TTC / TRM / Coeff
MHEX_S (Export) / 1750 / 225 / 1.000
MHEX_N (Import) / 700 / 550 / 0.091
Special Notes to MISO North RC
Special Instructions to MHEB Operator: / A)TOI Extentions - This TOI may be extended until 23:59 by performing the following steps:
  1. Verify system conditions to confirm there are no additional tie line facilities outages, or new internal MH outages.
  2. Review RTCA to confirm there are no new contingencies.
  3. Contact MISO to confirm there are no new outages, if there are no new outages provide notice to MISO that MH is extending the TOI.
  4. Extend the outage in COLA.
  5. Update TLAP outage table.
  6. Provide notice to affected balancing authorities

Special Instructions to MHEB Operator (cont): / B)When called upon by MISO for the supply of CRSG:
If Real Time Contingency Analysis (RTCA) indicates a post contingent overload condition on Y51L for the contingent loss of D14S - redispatch MH generation to maintain CRSG delivery as per:
  • Start Brandon Gas Generation and run up to 60 MW.
Brandon generation must be re-dispatched from HVDC generation at Dorsey
  • After 60 MW re-dispatch is complete, should RTCA continues to indicate a post contingent overload condition on Y51L due to the contingent loss of D14S,
Continue to re-dispatch generation from Brandon gas in 10 MW increments until post contingent overload on Y51L has been mitigated.
  • The mitigation must be completed within 30 minutes.

Prepared By: / G. Grenier / Date: / 201510 22
Prepared By: / G. Grenier / Date: / 2015 10 22
Prepared By: / B. Smith / Date: / 2015 11 17

Copies to:

SOSS, System Control CentreMISO

NSSS, System Control CentreGSO, System Control Centre

GSSS, System Control Centre

15-247R1_G37C_and_PrairieRamsey_and_GrForkPick_and_JamesPick_11_17.doc / Page 1 of 3