Switchyard PMCC Load Analysis
Bus Section – I
S. No.
Description
1
2
Feeder for Lighting Transformer
Package Chiller – 1 power
supply
Package Chiller – 3 power
supply
Feeder for vent fans swyd
control room cable vault
Feeder for vent sys battery and
charger room swyd
AHU Fan 1
AHU Fan 4
Cooling tower fan 1
Condenser water pump 1
Condenser water pump 3
BMK 1
BMK 2
BMK 3
BMK 4
Feeder for AHP control room
AC
220 V DC Battery charger
48 V DC Battery Charger
Feeder for transformer oil filter
Single phase 230 V outlets (5
Nos.)
Feeder 1 for ICT CCC
Spare feeders
Connected load in KW
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Rating
KW
64
45
Duty C/I
LF
C
C
0.9
0.9
Mode
R
S
1
1
45
C
0.9
1
15
C
0.9
7.5
C
7.5
7.5
7.5
3.7
3.7
2.2
2.2
2.2
2.2
15
Max. Demand
KW
KVA
57.6
67.76
40.5
47.65
0.0
0.0
1
13.5
15.88
0.9
1
6.75
7.94
C
C
C
C
C
C
C
C
C
C
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
1
6.75
0.0
6.75
3.33
0.0
1.98
1.98
0.0
1.98
13.5
7.94
0.0
7.94
3.92
0.0
2.33
2.33
0.0
2.33
15.88
15
5
15
5
C
C
I
I
0.9
0.9
0.4
0.4
0.0
4.5
0.0
2
0.0
5.29
0.0
2.35
2
C
I
0.9
0.4
1.8
0.0
162.92
2.12
0.0
191.67
272.2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Bus Section – II
S. No.
Description
1
2
Feeder for Lighting Transformer
Package Chiller – 2 power
supply
220 V DC Battery Charger
Welding Db supply
AHU Fan 2
AHU Fan 3
Cooling tower fan 2
Cooling tower fan 3
Feeder for vent in AC plant
room – swyd control room
Feeder for vent fans switchgear
room – swyd control bldg
48 V DC Battery charger
Condenser water pump 2
BMK 5
BMK 6
BMK 7
BMK 8
STP sump pump 2
Feeder for heater in AHU room
Feeder for humidifier in AHU
room
Fresh air fan for AHU room
Feeder for CHP Control room
AC
Feeder for control panel of AC
system ESP room
Feeder for control panel of AC
system Swyd control room
Single phase 230 V outlet (5
Nos)
Feeder – 2 for ICT CCC
Spare
Connected load in KW
Total connected load in KW
3
4
6
7
8
8
9
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Rating
KW
64
45
Duty C/I
LF
Mode
R
S
1
1
Max. Demand
KW
KVA
0.0
0.0
40.5
47.65
C
C
0.9
0.9
15
30
7.5
7.5
7.5
7.5
5
C
C
C
C
C
C
C
0.9
0.9
0.9
0.9
0.9
0.9
0.9
1
1
1
1
1
1
13.5
27
6.75
6.75
6.75
0.0
4.5
15.88
31.76
7.94
7.94
7.94
0.0
5.29
5
C
0.9
1
4.5
5.29
5
3.7
2.2
2.2
2.2
2.2
2.2
2
2
C
C
C
C
C
C
C
I
I
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.4
0.4
1
1
0.0
3.33
0.0
1.98
1.98
0.0
0.0
0.8
0.8
0.0
3.92
0.0
2.33
2.33
0.0
0.0
0.94
0.94
1.5
15
C
C
0.9
0.9
1
1
1.35
13.5
1.59
15.88
2.2
C
0.9
1
1.98
2.33
2.2
C
0.9
1
1.98
2.33
5
I
0.4
1
2
2.35
0.0
0.0
141.93
304.85
0.0
0.0
166.98
358.65
245.6
517.8
Maximum Demand
Maximum demand with 10% margin
Transformer rating selected
Full load current of transformer selected
Switchgear incomer rating
- 359 KVA
- 395 KVA
– 630 KVA
– 876 Amps.
– 1250 Amps.
1
1
1
1
1
1
1
1