110 KV YARD (SPIC)
TNEB 110KV Incomer-I TNEB 110KV Incomer-II
110 KV 110 KV
800 A 800 A
110 KV 800 A 110 KV 800 A
800A 800A
110KV 110KV
110KV / 110V / 110V 110KV / 110V / 110V
110 KV 110 KV
3 3 3
X 1250A
3750 MVA
1250A
3750 MVA
X 3 3 3
200/1 A 200/1 A
200/1 A 200/1 A
200/1 A 200/1 A
120 KV
120 KV
LA
LA
30 MVA 30 MVA TP-12
TP-11
110 KV/11 KV 110 KV/11 KV X – Circuit Breaker
Bus duct Bus duct
X 11 KV
3150 A
X 11 KV
3150 A
700 MVA 700 MVA
X
11 KV, 3150 A,
700 MVA
MAIN SUBSTATION
Incoming voltage : 110 KV
Number of feeders :2
Connected load : 40.19 MW
Sanctioned MD : 18MVA
Transformer capacity : 2 x 30MVA
Tariff (Basic unit charge) : Rs 3.50/ unit
(MD Charges) : Rs 300/ KVA
Peak Hour (20% extra) : Rs 4.20 / unit
Average unit rate : Rs 3.80 /unit
MSS 11 KV Distribution
Incomer-I Incomer-II
X X
TP-11 TP-12
110KV/11KV 110KV/11KV
30MVA 30MVA
X I/C-I I/C-II X
X
CPP Tie X
X X X X X X X X X
CPP Aux. APAC Amm-II Capacitor Capacitor CT MotorAmm-III Urea-II SAPA-I
TC-II Motor TP-31 Bank-I Bank-II TP-32
X
B/C-A B/C-B
X X
X X X X X X
CPP Amm-I Urea-I SAPA-II
TC-I TP-30 X - Circuit Breaker
TG-I TG-II
5.4 MW 13 MW
Ammonia Power Distribution
11KV I/C-I 11KV I/C-II 11KV I/C-III
from CPP from MSS from MSS
X X X
TP-32 Amm 830KVA
TP-30 TP-31 DG SET
11KV/433V 11KV/433V 11KV/433V
2MVA 2MVA 2MVA ~
X X X
PCC-1A Loads PCC1A STAND BY PCC1B MCC--11 X
X X
H2 comp(N)
X X X
IAC(N). N2 comp. X
Scrubbing water pp(W)
Seal water pp(E) PCC-1B Loads
LRC Cond. pp H2 comp(S)
Battery charger-C IAC(S)
CT fans Scrub. water pp(E)
Lighting Trfr. (N)
From 1100KVA
DG set
SFU SFU
MCC-11 Loads
X MCC2 3221(N), CT fans
FGC, SRC(E)
ID/FD Cond.pp (N),(S)
MCC-2 Loads
UPS-A
IAC(M), Seal water pp(W), H2 comp & SL pp LOPs
MOVs
SGC,LRC SOP&LOPs, APAC & CT turbine AOPs
OGT101A cond.pp
SRC(W), Quench water pp(W),
UPS bypass, Lighting trfr. (E), 115V Raw supply
Ammonia 115V Raw Supply Distribution
415V I/C
from MCC2
415V/115V
25KVA
SFU
SFU SFU SFU SFU SFU SFU SFU SFU SFU SFU SFU SFU SFU
CH C/R BFW Vib. CT Turbine ASGU Aux. CH & FH PLC ID/FD IG panel IAC SRC PGRU New C/R
A/C control analyzer panel Boiler Trainer panel panel panel analyzer Non-UPS
Urea Distribution
11KV I/C-I 11KV I/C-II
From CPP From MSS
I/C-I X X I/C-II
Urea 11KV panel, SWB12A SWB12B
X
X X X X X X X X X X
TP-21&TP-22
M M
TP-33 TP-34 TP-37 TP-38 TP-35 TP-36
1850KW 1850KW
Syn. Motor-A X X Syn. Motor-B
3.3KV Panel SWB21
X
X X X X
3.3KV Motors
From 1100KVA
DG set
X X X X X X
PCC2A PCC2B PCC 3A X PCC 3B PCC 3C
STAND BY PCC2C
X X X
X SFU X
X X X X
UREA WTP 500KVA WTP
DG SET
~ X
From 1100KVA
DG set TP-21&22 – 11KV/3.3KV, 10MVA
X TP-33,34,35,36,37,38 -
MCC3 11KV/433V, 1.6MVA Transformers
Phase-I Emergency Power Distribution
1100KVA,
11KV DG Set
Oil SFU Oil SFU Oil SFU Oil SFU
TE-1 TE-2 TE-4 PCC-3C Loads
TE-3
11KV/433V From CPP 11KV/433V 11KV/433V FH pp D&E,
PCC1A PCC1B 11KV/433V PCC3B
150KVA PCC2A PCC2C P9A,B&E, .
PCC9A 500KVA 400KVA 400KVA
UPS-B
SFU SFU SFU SFU
X X X X X
MCC-1 DG set Aux. MCC-2 Ammonia MCC-3 Urea PCC3C WTP X
SWB-12A
MCC-1 Loads MCC-3 Loads
LOP, Air compr. Booster LOP, PT water pp.
C.W PPs Hot water pps, Light trfr. TP-37
PT lift, UPS-A WTP 11KV/433V,
500KVA DG 2MVA
CPP Ammonia
830KVA DG 830KVA DG ~ X
PCC 9A PCC 1B
~ ~ SFU X
PCC-3A
X MCC 18 X X MCC 11 X
PCC-3A Loads
MCC 18 Loads FH pp-B, P1A&C, P5-A pps, IAC-A, Ltg. Trfr. UPS-
TG-I&II AOPs, B/C, Amm UPS-B, bypass, P3-B, P2-A&D, P9-D
PLANT LOAD DETAILS
Plants Loads in MW
Ammonia 1.7 + 0.97(Addl.PAC)
CPP 0.3
Urea&Utilities 11.42
SA 1.2
SA Co-Gen 0.5
SA Blower& Booster blow 1+0.35
PA 2.8
AlF3 0.4
DAP-I 1.5
DAP-II 1.6
Township 0.8
Total 24.54
TRIP SELECTION DETAILS
Trip Selection Pins Plants/Loads
1&2 Urea HT Loads
4&5 SAPA-II (CPP)
7 Bus coupler-A
8&9 Urea-I (CPP)
10&11 SAPA-I (MSS)
12&13 SAPA HT Loads
14&15 Addl. PAC Motor
17&18 Urea-II (MSS)
TRIP SELECTION SCHEME
+ ve
I/C-I I/C-II
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
GRID
B/C
TIE
TG-I
TG-I
TG-II
TG-II
R R R R R R R R R R R R R R R R R R
X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X16 X17 X18
- ve
X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X16 X17 X18
TSD Relay Contacts
TRIP SELECTION SCHEME
X1 X2
X10 X11
UREA HT TRIP
SAPA-I (MSS)TRIP
X4 X5 X12 X13
SAPA-II (CPP) TRIP SAPA HT TRIP
X7 X15 X16
CPP B/C-A TRIP Addl. PAC TRIP
X8 X9 X17 X18
UREA-I (CPP) TRIP UREA-II(MSS) TRIP
X - Circuit Breaker ANNEURE – 2
SINGLE LINE DIAGRAM –sheet 1/2
TNEB 110KV TNEB 110KV
Incomer-I Incomer-II
X X
TP-11 TP-12
110KV/11KV 110KV/11KV
30MVA 30MVA
X I/C-I I/C-II X
Main Substation 11KV panel –SWB11
X
CPP Tie X
X X X X X X X X X
CPP Aux. APAC Amm-II Capacitor Capacitor CT Motor Amm-III Urea-II SAPA-I
TC-II Motor TP-31 Bank-I Bank-II TP-32
X I/C-I Urea Plant 11KV panel –SWB12 X I/C-II
X MSS Tie
Captive Power Plant X
11KV panel –SWB19 B/C-A B/C-B X X X
X X X X X X X
X X
X X X X X X
Syn WTP Urea Urea Urea WTP Syn
Urea
Motor-ATP-37 TP33 TP35 TP36 TP38 Motor-B
TP34 TP-22
TP-21
CPP Amm-I Urea-I SAPA-II 11KV/3.3KV
11KV/3.3KV
TC-I TP-30 10MVA 10MVA
TG-I TG-II 13 X I/C-I X I/C-II
5.4 MW MW X
Urea Plant 3.3KV panel –SWB 21
X - Circuit Breaker
ANNEURE – 2
SINGLE LINE DIAGRAM –sheet 2/2
Incomer – I Incomer – II
From MSS From CPP
X X
SA Substation 11KV panel –SWB13
X
X X X X X X X X X X
ALF3 Air DAP-1 PA Township DAP-2 SA
TP46 Blower TP 43 TP41 TP44 TP40
TP-23 TP-24
11KV/3.3KV 11KV/3.3KV
3.5MVA 3.5MVA
X I/C-I X I/C-II X Incomer
X
SA Substation 3.3KV panel –SWB 22 11KV panel –SWB16
X X X X
GT
2.5 MW
X Cogen Aux
SWB15 PA
TP-42 TP-47
11KV TG-3
6 MW
Urea Distribution
11KV I/C-I 11KV I/C-II
From CPP From MSS
I/C-I X X I/C-II
Urea 11KV panel, SWB12A SWB12B
X
X X X X X X X X X X
TP-21&TP-22
M M
TP-33 TP-34 TP-37 TP-38 TP-35 TP-36
1850KW 1850KW
Syn. Motor-A X X Syn. Motor-B
3.3KV Panel SWB21
X
X X X X
3.3KV Motors
From 1100KVA
DG set
X X X X X X
PCC2A PCC2B PCC 3A X PCC 3B PCC 3C
STAND BY PCC2C
X X X
X SFU X
X X X X
UREA WTP 500KVA WTP
DG SET
~ X
From 1100KVA
DG set TP-21&22 – 11KV/3.3KV, 10MVA
X TP-33,34,35,36,37,38 -
MCC3 11KV/433V, 1.6MVA Transformers
