1. Confidential - For Internal Use Only
Gen Drop Addition
Tule Wind (BUE GEN 1)
A new 200 MW Wind facility (BUE GEN 1) will be interconnected via a 138kV line at Boulevard East Substation
Through equipment additions at Boulevard East (BUE) Substation, Gen Drop at Tule Wind (BUE GEN 1) will be added to the following RAS:
TL Instantaneous trip (Enabled during N-1 operation) -WAPS
TL Instantaneous trip (Enabled during N-1 operation) -WAPS
TL Instantaneous trip (Enabled during N-1 operation) -WAPS
TL23040 IV 500kV N-1 - Instantaneous trip (Normally enabled) -WAPS
Miguel Bank 80/81 – Sequential trip (Enabled during N-1 operation) -LAPS
Confidential - For Internal Use Only

2. BUE GEN 1 is connected via TL13850 to the 138kV Bus at
Gen Drop Addition
Tule Wind (BUE GEN 1)
BUE GEN 1 is connected via TL13850 to the 138kV Bus at
BUE
OCO GEN
OCOTILLO
TL50003
SUNCREST
SYCAMORE
CANYON
TL50005
TL50004
TL50001
TL50002 NG
MIGUEL
ECO BK 83 IV BK 81 BK 80 BK 81 BK 82
IV 230kV Bus BK 62
OTAY MESA
ECO GEN 1
BUE
BUE GEN 1
ECO GEN 2
TDM
CLR2
DW GEN
1-2-3
IV GEN 3 DU
BUE
TJI
ROA
Confidential - For Internal Use Only

3. Confidential - For Internal Use Only
Gen Drop Addition
Tule Wind (BUE GEN 1) ML IV
TL50004
TL50001 CW
N.O.
ECO
69kV BK 83 BK 50
230kV
BUE
138kV
TL23018 BK 62
ECO GEN 1
TL13850
TL13844
138kV
BUE
BUE GEN 1
TL13851
ECO GEN 2
Confidential - For Internal Use Only

4. Confidential - For Internal Use Only
Gen Drop Addition
Tule Wind (BUE GEN 1)
Existing RAS can trip the following generation:
1100 MW combined cycle (CLR2, TDM)
800 MW solar (DW1, DW2, DW3, IV GEN 3, DU, ECO GEN 2)
420 MW wind (OCO, ECO GEN 1)
Total of 2320 MW
BUE GEN will add 200 MW gen drop capability in two phases. Phase 1 will consist of 57 – 2.3 MW machines for a total output of 131 MW. Phase 2 will be added by year-end 2019, and will add 30 – 2.3 MW machines.
Confidential - For Internal Use Only

5. Confidential - For Internal Use Only
Gen Drop Addition
Tule Wind (BUE GEN 1)
TL13850
BUE
BUE GEN 1
Collector
Substation
Phase 1 52 T1
138/34.5/12.47kV 52 F1 52 F2 52 F3 52 CA
BUE
WTG
Cir. 1
WTG
Cir. 2
WTG
Cir. 3
Cap Banks
Confidential - For Internal Use Only

6. Confidential - For Internal Use Only
Gen Drop Addition
Tule Wind (BUE GEN 1)
ECO RAS Communication
Confidential - For Internal Use Only

7. Confidential - For Internal Use Only
Gen Drop Addition
Tule Wind (BUE GEN 1) ML IV
TL50004
TL50001
SEL-3530 CW
N.O.
F/O
BUE
ECO BK 83
SEL-3530
SEL-2411 BK 50
F/O
F/O
SEL-2506
TL23018 BK 62
ECO GEN 1
TL13850
TL13844
F/O
BUE
TL13851
SEL-2411
BUE GEN 1
ECO GEN 2
LOR
Confidential - For Internal Use Only

8. Confidential - For Internal Use Only
Gen Drop Addition
Tule Wind (BUE GEN 1)
ECO – BUE – BUE GEN 1 RAS Communication Circuits
Confidential - For Internal Use Only

9. Gen Drop Addition Tule Wind (BUE GEN 1) Fiber optic comm. path
SEL-2506
SEL-2411
Inst. trip from ECO
System A/System B
Trip 34kV Feeders
SEL-2411
Seq. trip from ECO
SEL-351
TL13851 at ECO
TL13850 at ECO
Trip TL13850 BUE if Gen flow sensed after time delay
Confidential - For Internal Use Only

10. Confidential - For Internal Use Only
Gen Drop Addition
Tule Wind (BUE GEN 1)
We are asking for RASRS approval to add Tule Wind Phase 1 generator tripping (131 MW) to the following RAS:
TL50001
TL50003
TL50005
TL23040 IV 500kV N-1
Miguel Bank 80/81
Confidential - For Internal Use Only