115 Kv-34.5 KV Gis Substation Macanang
115 Kv-34.5 KV Gis Substation Macanang
115 Kv-34.5 KV Gis Substation Macanang
1
Project Justification
The development of Malacafiang Substation would address the
expected critical loading of Tegen 100 MVA bank no. 6 and Paco 83
MVA banks no. 1 and 2 at 75%, 76% and 75%, respectively. This new \
substation project within the Malacafiang compound will provide a
long term solution to address the reliability of Malacafiang's power
supply that experienced numerous power outage incidents in March I
-.115kVUne
. " -_- . --
-----
.• _'0" . r
2
Ermita, Malate, Paco, San Miguel, Quiapo and portions of Sampaloc
and Pandacan, Manila affecting numerous schooljuniversities
(University of the East, Centro Escolar University and San Beda
College), vital government institutions particularly Malacafiang
(Malacafiang Palace, Office of the President, Presidential Security
Group Headquarters, and Bahay Pangarap) and Supreme Court of
the Philippines as well as various residential, commercial and
industrial customers (Manila Midtown Executive Homes, Robinsons
Place Manila and Unilever Philippines).
Power
Transformer
RY2016
(;oad
MVA)
%
Loadin"-
RY2017
Loa~)
(MVA
%
Loadinl!' (MVA)
RY2018
Load % Load
Loadin~ (MVA)
RY2019
%
Loadinl!.
I
Tegen Bank 6 00% ~.06 08% 00.8. 80% 82.80 80%
I
711.'72
Paco Bank 1 6<1.,25 76% 6S.l!4 70% 67.lI2 8.% "'0.0" 8'%
Paca Bank 2 62 ..10 70% 6.1.67 '8% 66.6' 80% 6"'.2A 8,%
3
I
These power transformers have already exceeded the 70% maximum I
normal loading limit, per the Investor-Owned Electric Distribution
Utility Planning Manual, which prescribes the augmentation of I
substation capacity in the year in which the load on a substation or
interconnected substation group exceeds 70% of the maximum rated
capacity under normal operating conditions with all transformers in
service. In the process of determining the most cost-effective
solution to address the identified deficiencies, MERALCOgenerated
I
several technically-feasible alternatives that could satisfy the
distribution system requirements in a timely and efficient manner. I
Project Alternative I
The project alternatives intended to address the capacity deficiencies
in the areas of Ermita, Malate, Paco, San Miguel, Quiapo and I
,
portions of Sampaloc and Panda can and reliability of service in
Malacaiiang are summarized below: I
Proiect Alternatives Classification
Development of Malacanang 115kV- Stand-alone
Alternative 1 34.5 kV GIS Substation
Development of Ermita 115kV-34.5 Stand-alone
Alternative 2 kV GIS Substation
Development of Escoda-Malate 115 Stand-alone
Alternative 3 kV-34.5 kV GIS Substation
I
'-'
I
o
•
Legend:
.E,I,tlo"1l5kV_M,SI<III/'
• PrOllo,.d 115W.34.51<\1I/S
_
-
.£Jd,t'""llSI<IIlIno
4
Alternative 2: Development of Ermita 115 kV-34.5 kV GIS
Substation
Legend:
o _1:.I.lIn!1l5W_1l4.5kVSfS _ .E.I"ln&llSWUne
I
j
legend:
o
•
E<~'lnlnSkV.3~_SkVS/S
.Pr<>P'O'.d 1151<11_34.51<115/5
_
-
.I:""lnlllSkVClr>e
.P,,,,,,,,.d llskVLlr>e
1
X . Cut
s
Comparison of Alternatives
a) Technical Comparison
6
Ermita 115 kV-34.5 center and will longer overhead 115
kV GIS Substation provide the required kV subtransmission
capacity in the area. lines with an
approximate total
length of 2.0 km to
cut in the existing
Tutuban - Paco 115
kVlines.
• Difficulties may be
encountered m
acquiring right-of-
way along United
I
Nations Avenue for
the
overhead
substation's
"5 kV
I
subtransmission
lines.
• The conversion of
Ermita Substation's
6.24 kV circuits
must be completed
and then Ermita
Substation must be
retired before the lot
can be reused as a
GIS substation.
Alternative 3
Development of
• This project is also
within the load
• This project will be
more costly since the I
I
Escoda-Malate 115 center and will cost of lot to be used
kV-34.5 kV GIS provide the required as a substation will
Substation capacity in the area, be included in the
project. The
• The substation
located
existing
near the
Tutuban-
is substation
of
property
lot is part
MERALCO's
namely
I
Paco 115 kV lines Escoda-Gabaldon,
which
approximately
is
0.2
located along Escoda
St. cornerSan
I
,
km. Marcelino St. m
Malate, Manila but
IS not part of the
regulatory asset base
I
of the company. The
lot IS estimated at
PhP48,750 per
square meter in
which the project
will have an
expected additional
cost of PhP 64M for
the 1,314 square
meters substation
•
lot.
There is still a need
to clear and vacate
I
the
Building
Ma. Zita
within I
7
I
,
Malate-Gabaldon
property from illegal
settlers before the
I
building can be
demolished so that
the lot can be used
as a substation.
I
Based on the above comparison of alternatives, the Development of
Malacafiang 115 kV-34.5 kV GIS Substation (Alternative 1) is the best
solution, at the least cost, to address the capacity deficiency in the
areas of Ermita, Malate, Paco, San Miguel, Quiapo, and portions of
Sampaloc and Panda can Manila as well as improve the reliability in
serving Malacafiang loads by minimizing distribution line exposure.
b) Financial Comparison
I
83
8
I
Mu RY2016 RY2017 RY2018 RY2019
Power
Transformer Capacity Lo •• % Lo •• % Lo •• % Lo •• %
(MVA) (MVA) Loading (MVA) Loading (MVA) Loading (MVA) r "~ding
Tegen Bank 6 60.32 60% 62.32 6,% 64.2.2
Paco Bank 1
'" 6,% 67.12 67%
Approval
Pro' ect to continue as ro osed -/
Pro' ect to continue willi revised ca ital ex enditure
Pro' ect to continue with technical amendments
Project to be deferred which may be included in its next
a lication with additional 'ustification
I
I,
Project Title 2. Expansion of Bagbaguin 115 kV-34.5 kV I
Substation (2nd Bank)
Project Code MER-2
Project Type Ca aci and Load Growth
Project Rank 1
Project Category Substation and Subtransmission Pro' ect
Project Justification
Bagbaguin power transformer bank no. 1 is now in critical loading
condition with 78% loading and forecasted to remain critically loaded
in 2016 with 85% loading. With limited available capacity in the area
there is a difficulty to shift some of this load to other substation.
10
Technical Analysis
The table below shows actual and forecasted loading without the
\
project:
I
Max RY2013 RY2014 RY2015
Power
Capacity Loa~l % Load % Loa~l %
Transformer (MVA) (MVA LoadinG' (MVA) Loadin'" (MVA Loadine:
Bagbaguin Bank 1 83 62.18 75% 64.78 78% 67.58 81%
Malinta Bank 1 83 52.3° 63% 54.48 66% 56.67 68%
Balintawak Bank 6 83 54.°5 65% 57.03 69% 58.77 71%
11
Power RY2016 RY2017 RY2018 RY2019
Transformer
Bagbaguin Bank 1
Loa~,
(MVA
%
Loadine (~1) %
Loadin..-
Load
(MVA)
%
Loadine
(~oad
MVA)
%
Loadin..-
70.39 85% 73.30 88% 76-42 9'% 79.54 96%
Malinta Bank 1 58.85 7'% 60.93 73% 63.22 76% 65.71 79%
Balintawak Bank 6 60.81 73% 63.54 77% 65.94 80% 68.60 83%
Project Alternative
12
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S',lo Gltn~
I
• . "0"""0 m".",. o. u,
'V"'''''''''',
I
Alternative 2: Expansion of Veinte Reales 115 kV-34.5 kV
I
Substation (2nd Bank)
I
V.ln'" R••al •••
I
5"'0 "ltn ••
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• D""
_"O"'''D "P~""D~
"'W"'~T',,",
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I
Alternative 3: Installation of 1st 83 MVA Power Transformer at
Sitio Gitna 115kV Switching Station
I
By the end of 4th quarter 2015, the Sitio Gitna 115 kV Switching
Station is already in place to initially accommodate the load
applications of Metrodragon Steel Corporation (MSC) and ANK Steel.
This switching station is located at No.8 MGM Industrial Compound, I
Sitio Gitna Kaybiga, Caloocan City. To maximize the use of this
switchin station, this ro.ect involves the installation of 1-83 MVA
13
I
I
power transformer with associated protective equipment as well as
appurtenant distribution lines. However, this substation is quite
distant from Balintawak and Malinta substations and it will result in ,
longer distribution lines and more expensive project compared to
alternative 1. I
To.s ••"S
To Novellehe.
- "''''''~.
• ..o"""~,~,.,."
.•"o~o.,,
T""""''''''
""VA "OW'"
Comparison of Alternatives
a) Technical Comparison
14
compared to
alternatives 1 and 3.
b) Financial Comparison
15
Tables below shows forecasted loading with the project:
Bagbaguin Bank 1
Capacity
(MVA) (~ad
MVA)
%
Loadin
,,%
(~:\
48.85
%
Loadin
,,%
(~ad
MVA
%
Laadin
;,%
Lon~\
MVA
%
Loadine:
"
48,1-4 58% 50-49 6.% 49.73 60% 51.65 67%
Bank 6
Bagbaguin Bank 2
"
42.56 5'% 47.95 58% 49.86 60% 51.86 63%
Approval
Pro' ect to continue as ro osed
Pro' ect to continue with revised ca ital e enditure
Pro' ect to continue with technical amendments
Project to be deferred which may be included in its next
a lication with additional 'ustification
16
Project Title 3. Expansion of Masinag 115 kV-34.5 kV
Substation (2nd Bank)
Project Code MER-3
Project Type Load Growth
Project Rank 1
Project Category Substation and Subtransmission Pro'ect
1unit
83 MVA, 110kVY-34.SkVY-
13.8kVD three-phase
power transformer
OLTC
with
I
I
three-phase, 115 kV gas
1unit
circuit breaker
Masinag
2 sets n::::kV disconnect switch "9,397,983
Substation
1 three-phase, 34.5 kV gas
assembl insulated switchgear with 7
v
1unit
vacuum circuit breakers
1.2 ohms, 36 kV, 630 A
neutral reactor
I
34.5 kV, 144 MVAR
1set
canacitor bank
Construction of new 34.5
39.2km kV overhead lines and
34.SkV reconductorine: of lines
Distribution 95,222,988
Installation of new 34.5
Lines
13 sets kV, 600 A Remote-
Controlled Line Switch
Total (PhP, Real 2014) 214,620,971
Project Justification
The expansion of Masinag substation would address the forecasted
critical loading of Masinag and Parang 83 MVA transformer banks
brau ht about b the ex ected increase in demand in the areas served
17
by these transformers. This project would also reduce system loss
and improve system reliability by reducing the exposure of existing
distribution feeders.
Technical Analysis
....•
"
""~." NO ,
l
,,~
OOIORESWII5TATION
IS
Antipolo and Tropicana Garden City in Marikina City. Thus, the new
83 MVA power transformer bank is needed to relieve the critical
loading of the aforementioned banks and provide more reliable
electric system in the said area.
The table below shows actual and forecasted loading without project:
Project Alternative
19
I
Alternative 1: Expansion of Masinag 115 kV- 34.5 kV Substation
(2nd Bank)
to Mar,klna sIs
Masinag'>/s j2'""bank]
to SM-Shangrlla sIs
10 Malaya sIs
20
Parang ,Is
L.7~,f'
o -E~lstlngl1SkV-34.5kV 515
j
lEil . E~panslon of 115kV-34,SkVsIs
to Marlkina sIs
Masinag sIs
___ E~lstlngUSkV line
I
(alnta sIs
to Marlklna sis
to SM.Shangriia ,Is
to Malaya,h
/~•..•.•\.
to M.riklna .f. \ cog"""I', ')
X~
105M-Shang,lla <,f,
to Malaya sIs
21
Comparison of Alternatives
a) Technical Comparison 1
The following table summarizes the companson of the advantages
and disadvantages of the alternatives: I
Alternative Advantages Disadvantages I
Alternative
Expansion of
1 • This project IS located • Minimal problems
within the load center of may be
I
I
Masinag 115kV-34.5 Antipolo City, Rizal and encountered m
kV Substation (20' nearby Marikina City. the acquisition of
Bank) • This project is relatively right-of-way for
cheaper than developing a the four (4) 34.5 1
new substation. kV feeders from
• This project will provide Masinag
reliable servIce In the
area, with operational
substation. j
switching flexibility
during contingencies.
• This project can be
constructed at the shortest
time and at a lower cost
compared to the
development of a new 115
kV-u.<; kV substation.
Alternative 2 • This project is relatively • It is farther from
Expansion of Teresa cheaper than developing a the target loads
"5 kV-34.5 kV new substation. resulting in more
Substation (2nd line losses and
Bank) • This project will provide voltage drop .
reliable servIce m the Thus, the
area, with operational reliability of new
switching flexibility distribution
during contingencies. feeders will suffer.
• Difficulties may
be encountered in
the acquisition of
right-of-way for
the four (4) 34.5
kV feeders from
Teresa Substation
to the target
customers In
Antipolo, Rizal
and Marikina City
due to numerous
residential and
commercial
establishments
along the
proposed lines.
22
Alternative 3 • This project will provide • This project will
Development of reliable service in the require purchase
Cogeo115kV-34.5 area, with operational of a substation lot
kVSubstation switching flexibility with an area of at
during contingencies. least 5.400 sq. m.
• It will involve the
construction of at
least 5-km long
115 kV
subtransmission
lines to cut-in the
Masinag-Parang
115kVlines.
• Difficultiesmaybe
encountered in
acquiring right-of-
way for the new
overhead electric
facilities along
Marcos Highway
in Rizal.
• This project IS
more costly than
expansion of a
substation.
b) Financial Comparison
23
Impact of the Project
I
(MVA) Loadin" Loadin", (MVA) Loadin (MVA) Loadin
Parang Bank 1 83 47.00 57% 48.87 59% 50.64 6,% 52.°9 63%
Masinag Bank 1 83 44.07 53" 45.19 54' 46.30 56% 49.99 50"
Maslnag Bank:l- 83 42.33 5'% 43-40 57% 44-47 ,,% 49.10 59%
I
24
I
Project Title
Project Code
4. Installation of 34.5 kV Metalclad Switchgear
at Dasmarifias 83 MVA Power Transformer
I
MER-4
Project
Project
Project
Type
Rank
Category
Load Growth
1
Substation Pro' ect
I
Project Description Duration 1
The installation of 34.5 kV metalclad switchgear at
Dasmarifias 83 MVA power transformer bank no. 1
involves purchase and installation of one (1)
assembly of three-phase 34.5 kV outdoor-type
I
metalclad switchgear with seven (7) vacuum circuit July 2015 to
breakers, one (1) 7.2 MVAR outdoor-type capacitor December 2015
bank and construction of new control house and
telecommunications room. Included is the 34.5 kV
I
distribution line reconfiguration and installation of
remote controlled line reclosers.
8.3km
house and
telecommunications room
Construction of new 34.5 kV
overhead lines and
I
34.5kV
Distribution reconductorinl! oflines
Installation of 34.5 kV, 600 A 37,776,226
Lines
13 sets Remote-Controlled Line
Recloser
Total (PhP, Real 2014) 68,161,085
Project Justification
The installation of 34.5 kV metalclad switchgear at Dasmarifias 83
MVA power transformer bank no. 1will partially unload the critically
loaded Imus Bank No. 2 and at the same time address the reliability
issues in Dasmarifias City as well as utilize the available capacity of
the Dasmarifias 83 MVA power transformer bank no. 1 thru the
construction of two (2) new additional 34. kV feeders.
I
25
I
1
Technical Analysis
PA5 •• AR!~6$
.-
.-
_.
ou_._
._.
..•.-...•.,
::::'t~-:z.-"
-
••••.• 0"'"
26
help maintain the high growth rate. I
The table below shows actual and forecasted loading without the
project:
PQwer
Transformer
M~
Capacity
(MVA) Loa~)
(MVA
RY20t6
%
Loadln
RY2017
~~1\ %
Loadin
RY2018
Load
MVA)
%
Loadin ••
{~ad
MVA)
RY2019
%
Loadln"
I
Imus Bank 2 83 66.77 80% 69.25 83% 72.59 87' 76.10 9'%
Dasmarifias
Bank 1
TOTAL
83
,66
42.02
108.79
5'%
66%
43.58
112.83
53'
68%
45.69
118.28
55%
7'%
47.9°
124.00
58%
75% I
I
Imus power transformer bank no. 2 has exceeded the 70% maximum
normal loading limit, per the Investor-Owned Electric Distribution
Utility Planning Manual, which prescribes the augmentation of
substation capacity in the year in which the load on a substation or
interconnected substation group exceeds 70% of the maximum rated
capacity under normal operating conditions with all transformers in
service. Likewise, power transformers should be economically loaded.
However, since only two (2) 34.5 kV distribution feeders are installed
in the Dasmarifias 83 MVApower transformer bank no. 1, the loading
cannot be maximized unless the exposure of distribution lines is
increased.
Project Alternative I
27
Alternative 1: Installation of 34.5 kV Metalclad Switchgear at
Dasmarifias 83 MVA Power Transformer Bank NO.1
To SACOOR Substation
Imus
C] . rfto"Os[o INSTALlA'ION Of
'"' S ,v "'flAt(HOSwll,HC,""
- .1lS'V"Nf
To Rosario Substation
To Silang Substation
To TMCII Substation
28
I
I
To BACOOR S"b<lation
Imu.
__ us,"u",
Pala-pal.
To Ro,ado Substation
To Silang Sub,ta"on __ rnl'''''W'''''','",
X .w,
To TMCIISub,tatlon
This project involves the expansion ofthe existing FCIE 115 kV- 34.5
kV substation in First Cavite Industrial Estate (FCIE), Barangay
Langkaan, Dasmarifias City, Cavite. It includes the installation of 1-83
MVA power transformer with associated SCADA and protective
equipment as well as appurtenant distribution lines.
To BACOOR >ub".tlon
Imu.
o "'''''",,>T''''''
-."''''',,"'
TORo.ario Sub,l.tion [Q] .""N"Q'O'''''''''OW'',"T,,"
To 511.n8 Sub,t.tion
To TMCII Sub"otlon
29
Comparison of Alternatives
a) Technical Comparison
30
\
\
b) Financial Comparison
Power
M~ RY2016 RY2017 RY2018 RY2019
Tl"ansfonner
Imus Bank 2
Capacity
(MVA)
83
Loa~,
MVA
54.77
%
Loadhu:
66%
~:
A)
57.25
%
Loading
69%
Load
(MVA)
48.59
%
Loadioll"
59%
(~~)
50.10
%
Loadine
60%
Dasmarii'ias
Bank I 83 52,02 63% 53.58 65% 55.69 67% 57.90 70%
TOTAL '66 106.79 64% 110.83 67% 104.28 63% 108.00 65%
31
Approval
Pro' ect to continue as ro osed
Pro'ect to continue with revised ca ital e enditure
Pro' ect to continue with technical amendments
I
•
32
Project Justification
The installation of 34.5 kV metalclad switchgear at LIIP 83 MVA
power transformer bank no. 3 would address the critically loaded Sta.
Rosa 83 MVA power transformer bank no. 3 and reliability issues in
Laguna International Industrial Park (LIIP) and Laguna Technopark
Inc. (LTI) as well as utilize the full capacity of the LIIP 83 MVA
power transformer bank no. 3 by constructing two (2) new additional
34.5 kV feeders.
Technical Analysis
..""" .....
--- - -- ", •......•. .
"'-"'-"
•............•
00. 1."' WVA
,.. ~
.. "". ~ "'"
"'~, ~,'i:•.."::.•••
v~v
to •••• '"0'""'''
• 0. •••••••
'"~-..... ••
,~.w_. j
With the forecasted small area load growth of 4.33% in the areas
served by Sta. Rosa power transformer bank no. 3 and LIIP 83 MVA
power transformer bank no. 3, these banks are expected to be 78%
and 44% loaded in RY2016. The existing available capacity of LIIP 83
MVA power transformer bank no. 3 cannot be exported to help
unload Sta. Rosa power transformer bank no. 3 due to limited feeders
and tying facilities since it has only two (2) 34.5 kV feeders, making it
difficult to hel unload ad' acent transformer banks and substations
33
especially during contingencies. Some of the major customers within
the area that will be affected by the capacity deficiency especially
during outages are Futaba Corporation of the Philippines, Isuzu
Philippines Corporation, International Distillers Philippines Inc.,
Laguna Electronics Inc. and Sunnelit Philippines Corporation.
The table below shows actual and forecasted loading without the
project:
Power
Max RY2013 RY2014 RY2015
Capacity Load % Load % %
Transformer (;oad
(MVA) (MVA) Loading (MVA) Loadin!!" MVA) LoadinJ:;
5ta. Rosa Bank 3 83 59.26 7'% 59.24 7'% 60.50 73%
UIP Bank 3 83 31.36 38% 33.5° 40% 34.22 4'%
TOTAL '66 90.62 55% 92.74 56% 94.72 57%
Project Alternative
34
Alternative 1: Installation of 34.5 kV Metalclad Switchgear at LIIP
3rd 83 MVA Power Transformer
I
j
1
I
To USP
I
Substation I:] ,000POSED IN"'-AlIA~ON O'",,",V
MH"£lAO'W,rc"GfM
This project involves the expansion of the existing Laguna Bel- Air 115
kV- 34.5 kV substation in Laguna Bel- Air, Bo. Don Jose, Sta. Rosa
City, Laguna. It includes the installation of 1-83 MVA power
transformer with associated SCADA and protective equipment as well
as appurtenant distribution lines.
To ROHM I,
LlIP
I
Substation To Balibago
Substation
I
j
I
To LISP - .1I~KVUNI
35
Alternative 3: Development ofVerdana 115kV- 34.5 kV Substation
To Balibago
Substation
o .115KV'iUBSTATION
-- -115KVlINE
o .PROPOSWll,KVSUBSTATION
To LISP
. PROPO,<P 11S Kv (lNl
Substation ,
Comparison of Alternatives
a) Technical Comparison
36
I
Alternative 2
Expansion of
LagunaBel-Air "5
kV-34.5 kV
• This project will provide • The
larger capacity compared
to Option 1
project is
farther from the
target loads. I
•
I
Substation (2nd
Bank)
Alternative 3 • This project will provide • This is the most
I
Development of larger capacity compared expenSIve option
Verdana "5 kV- to Option 1
I
because this will
34.5 kVSubstation reqUIre
construction of
approximately 5 I
km of 115 kV
subtransmission
lines.
b) Financial Comparison
104.69
'"
63%
55.15
1°9_75 60%
57.07
115.06
69'
69%
TOTAL 100.94 6'%
Approval
Pro' ect to continue as ro osed .(
Pro' ect to continue with revised ca ital e enditure
Pro' ect to continue with technical amendments
Project to be deferred which may be included in its next
a lication with additional 'ustification
38
Project Title 6. Development of Lucena 115 kV-34.5 kV
Substation
Project Code MER-6
Project Type Renewal
Project Rank 2
Project Category Substation Pro'ect
39
neutral reactor
34.5 kV, 7.2MVAR
1 outdoor-type capacitor
bank
Tavabas Substation
115kV outdoor-type
circuit breaker, 2,000 A 1
4 continuous, 40 kA RMS
interrupting capacity
and ,,0 kV BIL
115kV disconnect
switches, 2,000 A
8 continuous, 40 kA RMS
. short circuit withstand
and "0 kV ElL
34.SkV Distribution
Lines 61167.0,2
Construction of new
19.2 34.5 kV overhead lines
kilometers and reconductoring of
lines
Installation of new 34.5
kV, 600 A Remote-
8 sets
Controlled Line
Recloser
Total (PhP ReaI2ol<l) "'''8,911 544
Project Justification
The development of Lucena Substation would address the problem of
the critically loaded Tayabas 83MVA transformer brought about by
the expected increase in demand in the areas served by this
transformer. This project would also reduce system loss, provide
switching flexibility during outages and improve system reliability by
reducing the exposure of existing distribution feeders in Quezon
Province.
Technical Analysis
40
Figure below shows the existing geographical and single line diagram
of the Subtransmission System ofMERALCO in Quezon Province .
..~.
-{
I TAYABAS
__ ""H1:rOll'l(R
NO.'. U w.
'" 0"-)0 ~ ow
.i.
NEw MAUBAN -
..-.. 1II.'<7_~
NO, '. !..o •• ~.
no 'V_J.<.~ 'w
41
Performance Assessment - Analysis of Problems
"
Tayabas Bank 1 75.43 9'%
TOTAL 83 75.43 9'% 78.23 94% 82.01 99% 85.97 104%
42
Project Alternative
Alternative 1:
~.
Tayabas
o .OHiVERYPOINtSUaSTAHON
\ NGCP -Tayabas
o _I1SKVSUBSTATION
o .PROPOSWU5KVSUBSTATION
.1lSKVlINE
Lucena ~
- PROPOSED 11S KV LINE
Alternative 2:
~.
o .DELlVl'RYPOINTSUBSTATION
o . 115 KVSUBSTATION
o -PROPOSED1J5KVSUllSTATION
___ 1l5KVlINE
43
I
Alternative 3:
Tayabas
NGCP -Tayabas ~.
0 • DHiVERYPOINTSUBSTATION
0 • l1SKVSUBSTATION
0 • PROPOSED11S KV$UBSTATION
sar~ya
-- -llSKVlINE
-- -PROP05EDllSlCVlIN£
Comparison of Alternatives
a) Technical Comparison
44
all options, is
farthest from the
anticipated load
growth areas-
Lucena Diversion
Road and Lucena
City town proper.
b) Financial Comparison
MAX
POWER
TRANSFORMER
CAPACITY
~~
RY:Z016
, RY:Z017
%
RY:Z018
~AD W~
RY2019
%
(MVA) Loadln ~~ Lolldin Loa~'H A Loadlnll
Tayabas Bank 1 83 42.43 S'% 43.23 S2% 44.51 S4% 45.97 SS%
Lucena Bank 1 83 33.00 40% 35.00 4'% 37.50 4S% 40.00 48%
TOTAL '6. 75-43 45% 78.23 47% 82.01 49% 85.97 52%
A roval
Pro' ect to continue as ro osed ,(
Pro' ect to continue with revised ca ital ex enditure
Pro' ect to continue with technical amendments
Project to be deferred which may be included in its next
a lication with additional 'ustification
46
Proposed CAPEX Cost (PhP) 162,082,948.00
Project Justification
Tabang Substation is currently serving the areas of Guiguinto and
Malolos, Bulacan witll a critical loading of 79%. Due to customer
application like Robinson's Malolos and natural load growth in the
areas, MERALCOis expecting to increase this critical loading of 86%
by 2016 resulting in critical loading condition. Witlllimited capacity
and tying in the area of Bulacan, a project is needed to solve the
forecasted critical loading of Tabang Substation.
47
Technical Analysis
--- -...,.-
-_.
---. _ •.•.•...
-
.. -...._-
--
."
r - •.
~(..f=:
.- .- .-
48
Actual and Forecasted Loading Without Project
Tabang Bank 1
CAPACITY
(MVA) ::iv~
22.36
%
Loadin"
68%
~~
25.99
% wading
79%
!;DAD
MVA
27.03
%
Loadin
8,%
33
POWER
TRANSFORMER
MAX
CAPACITY
(MVA)
RY2016
!:ivAf WAD
RV2017
%
Loadin
RY20t8
WAD ,
Loadin
RY20t9
WAD
(MYA)
%
La.dln
Loa~". (MYA) (MYA)
Tabang Bank 1 33 28.39 86% 29.32 89% 30.26 9'% 31.50 96%
Project Alternative
o _[~""."W_U'k,,;j<
49
Alternative 2: Development of Hagonoy 69 kV-13.8 kV Substation
Ballw.&S/'
HAGONOVU I<\I-U.'
""SUBSTAT'ON
_ . ""'''OR 09 ,v j''',
• • .'Opoi' ••• kv_,. •• v 5/<
T.b.no sIs
x .~
50
Comparison of Alternatives
a) Technical Comparison
51
new 2-69 kV
subtransmission
lines and
substation yard
development,
making it more
expensive than the
first ontion.
b) Financial Comparison
52
1
A roval
Pro' ectto continue as ro osed ./
Pro' ect to continue with revised ca ital e enditure
Pro' ect to continue with technical amendments
Project to be deferred which may be included in its next
a lication with additional 'ustification
53
34.5 kV, 7.2MVAR
1set outdoor-type capacitor
bank
Construction of new 34.5
8.7km kV overhead lines and
34.skV reconductorinl! of lines
Distribution
Installation of new 34.5 34,388,309
Lines
4 sets kV, 600 A Remote-
Controlled Line Switch
Total (PhP, Real 2014) 63,112,508
This project will unload the critical loading of the above mentioned
power transformer and will resolve the high Interruption Frequency
Rate (IFR) of Camarin 435TC due to its long exposure approximately
129.6 kilometers, including two (2) new 34.5 kV feeders to the
existing two (2) feeders. At the same time, it will replace the old oil
circuit breaker and reclosers presently protecting the two (2) existing
feeders.
Technical Analysis
II
54
Existing Schematic Diagram of San Jose Substation
..
" ..,.
..."
..,"" .
.:
55
In the process of determining the most cost-effective solution to
address the identified deficiencies, MERALCO generated several
technically-feasible alternatives that could satisfy the distribution
system requirements in a timely and efficient manner.
Project Alternative
Alternative 1
Installation of 34.5 kV Metalclad
Switchgear at NGCP-San Jose 83MVA
Power Transformer
Stand-alone I
Development of Graceville 115kV-34.5 Stand-alone
Alternative 2
kV Substation
Development of Altaraza 115kV-34.5 Stand-alone
Alternative 3
kV SubStation
56
"G~P_'." J"., ''''V.
kV.""S kV '"b.,.<I"o
•••.•••• ~.
,,,","."00 ". kV."'.' kV
M.~I." "'
'ub"",;oo
'V_"., kV
• •.
",,,, ,,,,,,,,
"O"O>'C"'~'"'.,O~O'
,,,,,"C"O,,,
Dr
Tov.,"'" ~o.Io.
? 'ub •••"o"
.:/-;7"'''"'''' .'
o .",'o"m'~'o" • '"0'0<1:0 '"
~ ".}.!, '"
M
- • """ ""' ><
57
NGCP_S.n J.,.115kV.
kV.:W,5 kV S"o"otloo
I
To V.lnto R •• I••
Subst.tion
o _mKII'U'TIATION • .'0,",,',""''''-''''''''
-- ."'''''uN' '"
Comparison of Alternatives
a) Technical Comparison
!
provide additional
capacity and flexibility
to other tied
substations .
• It can accommodate
loads from adjacent
substations during
contin encies.
58
Alternative 2 • This project will not • It will involve the
Development of require lot acquisition construction of at
Graceville 115kV- compared to alternative least 0-4 Jun., 115kV
34.5 kV Substation 3. The substation lot is overhead
owned by MERALCO. subtransmission
lines as well as
installatiou of 83
MVA power
transformer and
new distribution
lines resulting in an
expensive proiect.
Alternative 3 • This project is near to • The substation lot is
Development of the load center and not yet available
Altaraza 115kV- customer application since the required •
34.5kV Substation like Altaraza Town lot is still uuder I
Center in San Jose Del negotiation with !,
Monte Bulacan. Ayala Land.
b) Financial Comparison
Project
Project Description
Project Cost NPV
Alternative (Million, PhP) (Million, PhP)
Installation of 34.5 kV
Metalclad Switchgear at
Alternative 1
NGCP-SanJose 83 MVA
Power Transformer
59
Developmentof
Alternative 2 Graceville115kV- 34.5 kV 415.86 83.53
Substation
Development of Altaraza
Alternative 3 115kV-34.5 kV 515.18 46.11
Substation
Camarin Bank 1 83 47.73 58% 49.29 59% 50.53 6,% 51.05 6,%
NGCP-San Jose 37.85 46% 47.52 57%
83 34.31 4'% 35.35 43%
Bank 1
Approval
Pro' ect to continue as ro osed ./
Pro'ect to continue with revised ca ital ex enditure
Pro' ect to continue with technical amendments
Project to be deferred which may be included in its next
a lication with additional 'ustification
60
Project Title 9. Construction of San-Jose Delivery Point's
115kV Lines
Project Code MER-9
Project Type Renewal
Project Rank 2
Project Category Substation Pro' ect
580,394,526.00
61
I
I
and 550 kV BIL
Metering ~ (contro~) 6,934,170
eaniameat SCADA
Communications
equipment 1,860,000
I (TELECOMM)
Total (PhP. Real 2014) 580 ~ 26
','
62
- OUHATSJS
'"
'" ,--
- - TOSAOG
TOtlERIAOSA
STA.I.!A~ASlS
MARllAOSlS
- CAllARIN SI$
TOSANY.lSE
~! I
4 I
MEYCAUAYAN SIS
NOVAlI,"""
- TO~
10tMll'HA
BAU~AWAI(SIS
TONORJHPOOr
TO ttmH PORT
63
Perfonnance Measures Without the Proiect durin~ N-1 Cont1n~ency
PERCENT LOADING OF AFFECIED
PARAMETERS UNDER CONSIDERATION BANKS/LINE DURING N-l CONTINGENCY
AFFECIED
OUTAGE OF SUBTRANSMISSION FACILITY
BANKjUNE DURING N-l CONTINGENCY RY2015 RY2016 RY2017 RY2018 RY2019
DURINGN-l
CONTINGENCY CAPACIlY
BANK/LINE
(MVA)
Remaining
Balintawak 300 102% 107% 110% 115%
Balintawak 3-300 300 each 96%
MVABank
MVABanks
Balintawak- Balintawak-
Diliman 115 kV Bagbaguin 115 kV 342.9 95% 102% 106% 110% 114%
Line Line
64
In the process of determining the most cost-effective solution to
address the identified deficiencies, MERALCO generated several
technically-feasible alternatives that could satisfy the distribution
system requirements in a timely and efficient manner.
Project Alternative
,I
65
--.-=.
Construction of San Jose Delivery Point's llSkV Lines (Scheme 1)
.•.• ...'1~'~,=-
~~ _~_ '"':=1 .
,1
=~
--'.
___
___
.1'ftlPOE(D
.0000rf .• "&
l1'OY~H
I
••••~I'J"
------.....
_..-........
_..
_0- -.~
.
.•....•.•..•
, '
•..
---.rn;l"U~U""
/
_.
-
-_.
-
-- _.
--
..••......
-~
1 ...•.......
,
,
..•..
"'-"""""'.
,,- .,:t:;..
\,
,:" .--'
•...•.~'"'-,
-_.-
Schematic Dia ram of San Jose Delive Point's 11 kV Lines
..-
-,-
NGCP-SAN JOSE SUBSTATION 1':lI_l:lf.tIs,nllV
@
-_.~
--_.~
.111"" IC1lItC
~---
"""'"
115 W S'tIfTCHYAAD
••••
"'" """ "'''O'l
"""
f.0
r
I
llWlU!ilf1,1
,, , I
I
I
,
!
I , It If of
!'
,! , -I -! -I I'
1.1.'----J .. ! !i Ii ,.
'4 7.---.., ~
~
RlllI\I!ClMo_
""'" i
i
!
,-I' I' 1 l' I' i
t,
e-
! ete
e
i
~
I
I
te I
I
I
1 1 1 ."
-~
ImvU1lO1
w.
." w. I
1 w. w.
m.~
I
01.
~L!
"'"""
6tkl.1'!CJ.J.Lll
~Al
f'9b~Lll
~11~
66
Alternative 2: Development ofCamarin 230 kV-115 kV Substation
.-=.
'-
-.
•••• -... _-
_.~
.. ...---'~"
.•.. -
""=='
,.,
.-
67
-'
U5KV1IlJS1Q.1 DWC """
U"-VIIIUS
~
""""
• 1
H :::::::: • CO liOJLCO
I r--
r=::J."'''''''
•
@
••
.'ZDN1ETDlIG
RlT\ItE
I !,, - .DJmO(l
o
o
• •
Schematic Diagram of Camarin 230 kV-1l5 kV Substation
This project involves the construction of two (2) llSkV lines with a
total length of 3S km. These lines will serve as additional outlets for
NGCP's San Jose 230 kV-llS kV substation thereby converting it to a
new delivery point substation for MERALCO. The two lines will be
constructed along the same route. It also involves the installation of
power circuit breakers, appurtenant disconnect switches and
metering equipment at San Jose substation (refer to Figures below).
68
)
•••
----":',-~... I
••••••••••
.
,LCHO:
.'~~~ ••••• ~ "'VOlORfSY!'
T...",~ \
_~f'<PI'OSi".U
_u. ._ -D:.4,~¥ino
11,\\fUlL
'.'! Ln-.
•
, II
II
_. •
."" ••.,•••
_____
X • CUT LINE
- f-::<15l1tlGl:O<HI'lf
g
•,•,
/
"'''''~'''''''
_........
-" ...-•....•...
..~.
'<8'
"",",,",,' ...•"' ..
-
'"'
.......
..•."...
,
I
-,
-,~
f~
. ~- NGC~ANJOSESUBSTAnON
-,-
IOIIIW.,ZlIl-ll6-1lJkV
----'
--
<iJ ...,...
."';I/I~
~7t!MCl.I1CS~
115kVswrrCHYARD
"'"
~l)!l1C1,lAC!R ~E
r
mv.S't llCI,y.~
~ ,
I."'"
i~
I
H~lilJSllIll
, , tl r I
I
(
I
I
I
I
i ! ei'! c/
I
I
I
!
i
i
!"
'8
}I 'lLJ L _.,j
I
I
~
•
!
,
,~i 111 11, '7
c/
i
, !,~
,' If
lJ:.>-----~-
RELoc.o,ll:fl~TE
FOllII£t3W!l_
,
~
i
,~
! :1~ t' 1'--'
I I
""''' ' ! 18
9 i
f!
'
i ! ! I ~ I
I
I
~,
1 "" ,
1l1l:V1ilJSlm
I
"" ""
1 1 "" "" I
,
Schematic of San Jose Delivery Point's l1SkV Lines (Scheme 2)
~w ~J.1m
!Bll1(,Nl'l.\TIJl
~
""""""'
NIQ,ITlHl
--
llA.w,ouo,
69
Comparison of Alternatives
a) Technical Comparison
70
!
b) Financial Comparison
Remaining
Duhat 300 83% 87%
Duhat300 300 98% 76% 79%
MVABank
MVABank
Remaining
Balintawak 300 88%
Balintawak 3- 300 each 96% 78% 8'% 84%
MVABank
300 MVA Banks
Balintawak- Balintawak-
Diliman 115 kV Bagbaguin 115 342.9 95% 36% 38% 39% 4'%
Line kVLine
71
Balintawak substations as well as the overloading of Balintawak-
Bagbaguin 115kV line during N-1 contingencies. These new lines will
also provide additional capacity to meet the load growth in Sector 1.
As a result, this project will optimize the utilization of the capacity of
one (1) 300 MVA and one (1) 100 MVA, 230 kV-115 kV power
transformer banks of San Jose Delivery Point Substation which is
strategically located in Sector 1.
Approval
Pro' ectto continue as ro osed ./
Pro' ect to continue with revised ca ital e enditure
Pro' ect to continue with technical amendments
Project to be deferred which may be included in its next
a lication with additional' ustification
72
Telecommunications
1,860,000
~iDment
Total (PhP, Real 2014) 336,277,849
Technical Analysis
-m.v •.•.••
------
••••• Z».v ••••
.
',," ._
-
1-
'...... ;,
11-
J'
I
_
-_
.._
••-
. '- \
.••., ..
-i ,:Sector 3
, ....•.
~ .-. ....--
-- . l . .-
..•.. - .
/ •.•.
'.
=~""t
fl_-_~
'\. "-""'1' ",r,
I ••• 1 / !J!cnt'~ E, ••~•."
\... - -,
, T.'
I --"/ ._-
,;
- ::~ '-I ..•.
~ .... ~"
~~~ Illlll _ ~ ~ .•_. -.-;~.I. '-:--- !"• .,.,,~
73
." ..,"...,."."
_.tf 9
T1=.•1
1 =-'t.
1111
0"" ..".""
11
:::u y.y.y. 1. y. 1-y. Y. 1
=, ",.,
=.--;,
==, =
•
-,~..
"",.-,,',
- •• 1 I
r.r 1Lu-Y.~9-Y.
= ,= _._ .
.... .,....-.""''''''
.•.._"""' ...
.
....,. ".;"
t
'~'.,.'
~
:"11
~Il'
1 I I 11
l' 'f. f 'r- 'f-
=:;;::,';;;~
I I I I
=, =, =
1 1 I
t ~
-' ~,--
..••....•. =,=,
Existing Schematic Diagrams of BF-Parafiaque, NAIA 3 and Malibay Substations
74
Sunvalley-NAIA 88% 96% 100% 104%
93%
sLine
Sucat
Zapote-Pagcor 1 108%
Sunvalley 342.9 96% 101% 103% 105%
Line
Line
The outage of any of the Sucat -Sunvalley 115 kV line, Zapote- Pagcor
1115 kV line or Sunvalley-NAIA 3 115 kV line is considered to be the
major risks in the subtransmission network in Sector 3 since this will
trigger the overloading of the Zapote-Pagcor 1115 kV line or Sucat-
Sunvalley 115 kV line. These N-l contingencies will result in a 1
maximum load at risk of around 156 MVA in RY 2016 and forecasted
to increase in the following years if no project will be implemented.
Project Alternative
75
Alternative 1: Construction of BF-Paraiiaque-NAIA 3-Malibay 115
kVLine
This project requires the construction of 12.04 km. 115 kV line which
is composed of 11.24 kilometers overhead (OH) line and 0.8 kilometer
underground (UG) line, from BF-Parafiaque Substation to tapping
point of NAIA 3-Malibay 115kV line (along West Service road and Dr.
A. Santos Ave.). It also includes the construction of 0.84 kilometer
OH line from Legazpi Substation to tapping point of CBPlA-Rockwell
115 kV line (along Chino Roces Ave. to corner of Yakal St.). The new
OH lines with a total length of 12.08 kilometers will be using 2-795
MCM ACSR per phase while the 0.8 kilometer UG line will be using
2-1200 mm2 Cu XLPE per phase. The UG line is required due to the
crossing of aviation flight path .
J 'rC'5
....... . }R~IU. Aleo '< r1i
.. '.Ji (:0,,"""1<_ -- TOI'''CO'
Mono'II~P!l,1 _Ii"' ~SUMTATllltl ~
....•.•. .1_' 10",0£:0-- <. ('~,~
,_Stn~OIO" ,
\\ "'''tAft" (-..w'
"'" _ P!<llV•• CM\
".>
W1Af '0" -",
(l
I
SllIl!!.A~ J
,
lO'I"5UG
s:.esr A no'l
•
,. ~ .. , -••... ,
•..•.
••
I
J
i
Paraflaque
,
f
"
OU'AAA'/JD'J!
~Amtl
,.. ,f
LEGEND;
ExlsthgOH I
Proposed OH " ,1 . '~I
__ x ..
,
I Proposed UG "
••••••••
\ """,
w....-.ul,ir
i
! ~
Cut •• x
lfias
>
76
Alternative 2: Construction of BF-Parafiaque-NAIA 3115 kV Line
• --
.,..,,"'"
TOtfUCRtST
I
I
,'!'~A.~IJ
c.'" 1 "
~
PAGCOAI •
Sl.$StAllON . o
Tagulg
T - 1
"'. -
.- ....•.. I
r
~NlI""" >: ,i
~IN'OTEoo.
Pl.ss.
-_._. / j
i ;
\ I
I
I
LEGEND:
f, Y
l
-~r
Exlstl"1g OH
I
t
_OH-
_UG-
Cullhe
---
---
inas
-...
• ,
"""'"
. '! Sl/SSfAlJO'/
'
Sl£ATOB.. :
I
~
-- .. ".'" -
Construction of BF-Parafiaque-NAIA 3115 kV Line (Alternative 2)
77
Alternative 3: Construction of Zapote-NAIA 3 115 kV Line
.. .' I.t....
"'/"'-, ..-.•-
EP. •••• '"
•.•_~,...
NCO
•••..eI
. ~, TO~,I(()
USTAmN
\ \ r;.s;;,;r-'"
\" .~_e- ;.
_ .....e--- t
c..-oo.a
--
-
C"" ••. I_
--
1'5Wh """
~IICII&a'I~~~'~
~ .....,.uotn) •••• ,
7
.....
,."""
r -~
I SlIm'ATJIOt4".- Taguig
r
•••••••••
••
i VS'OT£ on.. I PnranaquC! ,
~!'~~
)- ••••• 00
".
f
, I
\
f
""""'00- 1
,
-- ..-
\ ._...
•
G
,I
"" ..
""""'UG-
Construction ofZapote-NAIA
, inns
.....•" \
78
I
I
Comparison of Alternatives
a) Technical Comparison
79
Zapote-NAJA 3 deficiency of vanous Alternative 1 and also
115kV Line 115 kV lines in Sector 3. difficult to implement
which might not meet
the scheduled
completion target due
to extensive
requirements for the
construction of OH 115
kV line and longer UG
115 kV line because of
limited easements,
presence of elevated
highway structures
and will cross the
aviation flight path
along the identified
routes. Acquisition of
Permits and ROW is
likewise challenging
and might cause the
delay of the
implementation of the
proiect.
b) Financial Comparison
80
Performance Measures with Project During N -1 Contingency
PERCENT WADING OF AFFECfED LINES
PARAMETER UNDER CONSIDERATION
DURlNG N-l CONTINGENCY
AFFECfED
SUBTRANSMISSION
OlITAGE OF LINE FACILITY DURING
DURINGN-l RY2015 RY2016 RY2017 RY2018 RY2019
N-l CONTINGENCY
CONTINGENCY
CAPACTIY
LINE
(MVA)
Sucat-Sunvalley 6,% 66% 69%
99% 64%
Line Zapote-
305
Sunvalley NAIA Pagcor 1 Line
88% 5'% 54% 56% 59%
3 Line
Sucat
Zapote-Pagcor 1
Sunvalley 343 96% 49% 5'% 53% 55%
Line
Line
A roval
Pro' ect to continue as ro osed -/
Pro'ect to continue with revised ca ital ex enditure
Pro' ect to continue with technical amendments
Project to be deferred which may be included in its next
a lication with additional' ustification
81
Proposed CAPEX Cost (PhP) 75,913,229.00
Project .Justification
The project will provide N-l contingency to the existing Dasmariiias-
FCIE 115kV line. It will also augment the line capacity, provide
operational flexibility and enhance the reliability of subtransmission
s stem in Cavite Sector.
Technical Analysis
I
I
r--
'.
.~
I
I.
,
1:"
--
••••
.,
-..-
.,1
.-.;'" :'
.......- --
I'd-..
""""
c ..•...-
_.,n..-_ y , """"
.~
,. t
,
./0 . :'0;:"-- •
,~_____
~ ft ~
82
To'~"'''''
:-.:.~ No"",_"~'-~tO>P'"
""'.~ ___ B•• oo.
Imu.
'MYAC+--
.."'".~".!"
Rosario
..,,
..
Rot Abubot
IF o~
l[ !J
s~c
'M
MCM""R
~1""
_.-....
,~
"
..
.", ..
fCIE 0" ••"", ••"'"
GltewlY
1-,-'
•••
." , """"" """""
It
Ilmldeo
Deli•• ry Point
•.
.I&n!!l!;.
-,
~ '/- •...
"~_"_h
_NO 'NO
TOT'I.,...
Schematic Diagram of Dasmarifias-FCIE 115kV Line in Cavite Sector
83
The N-1 contingency criterion will be breached during the outage of
any of the Dasmarifias-Abubot-Rosario 115 kV line, Amadeo-
Gateway- FCIE 115 kV line or Amadeo 300 MVA power transformer
since these will cause the overloading of the Dasmarifias- FCIE line.
Project Alternative
84
kilometer portion of Dasmarifias-FCIE Line from 1-795 MCM ACSR
conductor per phase to 2-795 MCM ACSR conductor per phase (refer
to Figure below).
LEGEI/O.
~-
, ,
o -••.....•.•.••.
--c._
- .•...••
•
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Proposed Rebuilding Portion of Dasmarifias-FCIE 115kV Line (Alternative 1)
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Alternative 3: Construction of New Amadeo-FCTE 115kV Line
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Comparison of Alternatives
a) Technical Comparison
86
reinforcement to carry
the bundle conductors.
87
Impact of the Project
Approval
Pro' ect to continue as ro osed
Pro' ect to continue with revised ca ital e enditure
Pro' ect to continue with technical amendments
Project to be deferred which may be included in its next
a lication with additional 'ustification
88
Pro. ect Descri tion Duration
The project involves the rebuilding of 115 kV line
from Balibago Substation up to South Luzon
Expressway by uprating 1.8 kilometer portion of January to June
LIIP-Balibago 115 kV Line from 1-795 MCM ACSR 2016
conductor per phase to 2-795 MCM ACSR
conductor er hase.
Technical Analysis
89
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Geographical Location ofLIIP-Balibago 115kV Line in Laguna Sector
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90
PERCENT LOADING OF LIIP-BALIBAGO LINE
PARAMETER UNDER CONSIDERATION DURING N-l CONTINGENCY
AFFECfED
SUBTRANSMISSION
OUIAGEOF FACILITY DURING
BANK/LINE N-l CONTINGENCY RY2015 RY2016 RY2017 RY2018 RY2019
DURINGN-l
CONTINGENCY CAPACTIY
UNE (MVA)
Sta. Rosa-
Laguna BelAir 97% 101% 107% 112% 118%
Line LIIP-
Laguna BelAir- Balibago 171.5 101% 105% 109%
9'% 97%
LIIP Line Line
Sta. Rosa 300 103% w7%
90% 95% 99%
MVABank
91
Project Alternative
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ProposedConstructionof St•. Ros.-LIIP 115kVLine
This project involves the acquisition of lot and the construction of 230
kV-115 kV substation with initial one (1) 150 MVA, 230 kV-115 kV
power transformer. It also involves construction of two (2) 230 kV
lines using 1-795 MCM ACSR conductor per phase with approximate
length of 0.2 km each circuit to terminate Cabuyao 230 kV switchyard
to old Bifian-Makban 230 kV Lines and construction of two (2) 115kV
lines using 2-795 MCM ACSR conductor per phase with approximate
length of 4.1 km each circuit from Cabuyao 115 kV switchyard to
cut-in to LIIP-Balibago 115 kV line. The delivery point substation
project includes the installation of three (3) 230 kV gas circuit
breakers (GCBs) and associated 230 kV disconnect switches and three
(3) 115 kV GCBs and associated 115 kV disconnect switches (refer to
Figure below).
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Comparison of Alternatives
a) Technical Comparison
94
b) Financial Comparison
95
A roval
Pro' ect to continue as ro osed ,(
Pro' ect to continue with revised ca ital ex enditure
Pro' ect to continue with technical amendments
Project to be deferred which may be included in its next
a lication with additional' ustification
Project Justification
• MERALCO will not be able to exercise its mandate to allow
customer expansion due to increase in load.
96
interruption to SM Shangri-la - Dolores 115 kV line due to tap
connection
Technical Analysis
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97
Performance Assessment - Analysis of Problems
Any customer that will connect to MERALCO's 115 kV lines will also
be part of that loop, as such, the customer will have to cut-in and not
just tap into an existing line. The customer will have to provide a lot
that can accommodate the switchyard that MERALCO will construct
for this scheme. For the control and protection of the switchyard,
relays, SCADA equipment and telecommunication equipment will
have to be provided. The customer shall also be required to take all
necessary measures to ensure that its proposed connection shall not
result in the degradation of the subtransmission system. This
includes the installation of protection system to automatically
disconnect its generators in the event of system faults, voltage
fluctuation and large frequency deviation due to weather conditions,
or other unusual conditions that may cause voltage or current
disturbances on the system. It is also required to meet MERALCO's
standards on power quality such as limitation of DC injection, flicker
severity and harmonics. For the registration of energy consumption
and exported energy, metering assets will have to be provided also.
Project Alternative
Alternative 1:
Pag-asa Steel Works, Inc. (PSWI) operates a steel rolling mill plant at
Manggahan in Pasig City. The existing steel rolling mill plant is
currently tapped at SM Shangri-la - Dolores 115 kV line with applied
load of 18 MW and a 22 MVA power requirement.
98
Alternative 2:
Comparison of Alternatives
a) Technical Comparison
b) Financial Comparison
Project
Alternative
Project Description
Project Cost
(Million, PhP)
NPV
(Million, PhP)
!
Alternative 1 Maintain the current set-up - -
Construct Substation
Alternative 2 Facilities & Subtransmission 58.64 1,632,11
lines
For Alternative 1, the NPV does not apply since the current set-up
does not re uire new facilities to be constructed.
99
I
Impact of the Project
Shown in the figure below is the single line diagram of the proposed
network upon completion of the recommended construction .
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A roval
Pro' ect to continue as ro osed
Pro' ect to continue with revised ca ital e enditure
Pro' ect to continue with technical amendments
Project to be deferred which may be included in its next
a lication with additional 'ustification
100
Project Title '4. Replacement of Power Transformer NO.2 at
Mandalu on Substation
Project Code MER-14
Project Type Renewal
Project Rank 1
Project Category Substation Pro' ect
of Cost Estimates
Descri tion MaOor E ui ment Total
83 MVA, 1l0kVY-
Replacement of
34-5kVY-13.8kVD three-
Power 1 52,908,466.33
phase power
Transformer
transformer with OLTC
Total (PhP Real201 )
Project Justification
The project is to replace the existing Mandaluyong power
transformer #2 (NLTC - No Load Tap Changer) with a new 83 MVA
power transformer with OLTC. This project will deliver quality
voltage to customers due to OLTC automatic control. The project will
provide flexible tying configuration of feeders and load balancing in
the Mandaluyong and Pasig area which are sourced from power
transformers in Shangrila, Rockwell, and Mandaluyong (transformer
#1) substations. This project will optimize the load capacity of the
Mandaluyong substation transformers and improve the reliability
and uali of service to customers in Pasi and Mandalu on areas.
101