Download - Draft ppt Solar Plant Amit_17.06.2014.pdf
-
An
Introduction
to
10 MW SOLAR PV PLANT 10 MW SOLAR PV PLANT
AT NTPC UNCHAHAR
by
Amit K GautamSr. Manager
(O&M - Solar Plant Commissioning)
-
SYNOPSIS OF THE PRESENTATION
Introduction
What is SPV Technology
SPV Technology Fundamentals
Single Line Diagram
Combination of Solar Cells, Strings, Inverters &
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
Combination of Solar Cells, Strings, Inverters & Inverter Transformer
The HT Switchboard
Switchyards (33kV & 220kV)
Auxiliary Power Scheme
SCADA & Weather Monitoring System
Module Washing System
Fire Fighting System2
10 MW Solar PV Plant, NTPC Unchahar
-
INTRODUCTION
Solar power is the
conversion of sunlight into
electricity, either directly
or indirectly.
It's a quiet, clean &
renewable source of
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
renewable source of
energy
Photovoltaic (PV) modules
have no moving or
wearing parts.
Require less maintenance3
10 MW Solar PV Plant, NTPC Unchahar
-
SOLAR POWER GENERATION TECHNOLOGIES
Solar Photo Voltaic (direct):
PV panels use the
photovoltaic effect to turn
the suns energy directly into
electricity.
Solar Thermal (indirect):
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC
Solar PVSolar PV
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
Solar Thermal (indirect):
Solar thermal panels use the
suns energy to heat water
that can be used to generate
electricity.
Here, we are using Solar PV technology. 4
10 MW Solar PV Plant, NTPC Unchahar
-
WHAT IS SPV TECHNOLOGY?
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
A PV panel is made up of a semiconducting material, usually silicon-based sandwiched between two electrical contacts.
The junction of dissimilar materials (n and p type silicon) creates a voltage.
(A presentation by Amit K Gautam)
10 MW Solar PV Plant, NTPC Unchahar
5
-
TYPES OF SOLAR PV TECHNOLOGIES
Silicon Crystalline Technology
1. Mono Crystalline PV Cells
2. Multi Crystalline PV Cells
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
Thin Film Technology
1. Amorphous Silicon PV Cells
2. Poly Crystalline PV Cells
( Non-Silicon based)
10 MW Solar PV Plant, NTPC Unchahar
6Thin Film Thin Film
Solar CellSolar Cell
-
SILICON CRYSTALLINE TECHNOLOGYTuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
Made using saw-cut
from single cylindrical
crystal of Si
Caste from ingot of
melted and re-
crystallized silicon
Mono Crystalline PV Mono Crystalline PV
Cells Cells
Multi Crystalline PV Multi Crystalline PV
CellsCells
Currently makes up 86% of PV market
Very stable with module efficiencies 10-16%
(A presentation by Amit K Gautam)
10 MW Solar PV Plant, NTPC Unchahar
7
crystal of Si
Operating efficiency
up to 16%
crystallized silicon
Cell efficiency ~12%
Accounts for 90% of
crystalline Si market
-
SOLAR CELL FUNDAMENTALS
Solar Cell Characteristics
Short circuit current
(Isc):
Maximum current
produced by solar cell
when its terminals are
shorted.
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
shorted.
Open circuit voltage
(Voc):
Maximum voltage
that can be obtained
from a solar cell when
its terminals are left
open. 8
10 MW Solar PV Plant, NTPC Unchahar
-
Fill Factor (FF):
It is defined as the
square-ness of the I-V
curve
It is related to the
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
SOLAR CELL FUNDAMENTALS
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
It is related to the
resistive losses in the
solar cell.
In ideal condition its
value is 100%.
For a good solar cell it
is > 80%. 9
10 MW Solar PV Plant, NTPC Unchahar
FF = Pm / (Voc x Isc )
-
MAXIMUM POWER POINT TRACKING
(MPPT)
MPPT orMaximum Power Point Tracking is
an algorithm that included in electric power
converter system used for extracting maximum
available power from PV module under certain
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
conditions.
The voltage at which PV module can produce
maximum power is called maximum power point
(or peak power voltage).
Maximum power varies with solar radiation,
ambient temperature and solar cell temperature. 10
10 MW Solar PV Plant, NTPC Unchahar
-
HOW MPPT WORKS?
The major principle of MPPT is to extract
the maximum available power from PV
module by making them operate at the
most efficient voltage (maximum power
point).
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
point).
MPPT system is to sample the output of
the cells and apply the proper resistance
(load) to obtain maximum power for any
given environmental conditions. 11
10 MW Solar PV Plant, NTPC Unchahar
-
MAXIMUM POWER POINT TRACKINGTuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
12
10 MW Solar PV Plant, NTPC Unchahar
-
SOLAR CELL CHARACTERISTICS
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
Efficiency ():
Solar cell efficiency is
the ratio of the electrical
output of a solar cell to
(A presentation by Amit K Gautam)
10 MW Solar PV Plant, NTPC Unchahar
13
output of a solar cell to
the incident energy in
the form of sunlight.
Efficiency up-to 14-16%
are normally achieved
by crystalline Si cells.
is the efficiency
Voc is the open-circuit voltage
Isc is the short-circuit current
FF is the fill factor
-
LOSSES IN SOLAR CELLS
1. Unavoidable losses:
Loss of low energy photons (23%)
Loss due to excess energy of photons (33%)
Voltage loss (0.65 0.72)
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
Fill factor loss
2. Avoidable losses:
Reflection losses
Incomplete absorption losses
Recombination losses14
10 MW Solar PV Plant, NTPC Unchahar
-
EFFECTS OF TEMPERATURE
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
As the PV cell
temperature
increases above
(A presentation by Amit K Gautam)
10 MW Solar PV Plant, NTPC Unchahar
15
increases above
25C, the module
Vmp decreases by
approximately
0.5% per C
-
EFFECTS OF LOW INSOLATIONTuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
Insolation is the solar
radiation that reaches
the earth's surface. It is
measured by the amount
of solar energy received
per cm2 / min.
(A presentation by Amit K Gautam)
10 MW Solar PV Plant, NTPC Unchahar
16
per cm2 / min.
As insolation decreases
amperage decreases
while voltage remains
roughly constant
-
EFFECT OF SOLAR ORIENTATIONTuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
17
10 MW Solar PV Plant, NTPC Unchahar
-
SOLAR TRACKING
To receive maximum intensity of sunrays the
solar panel surface should be perpendicular
to sunrays.
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
Max performance is achieved when panels
are perpendicular to the suns rays.
Panels should be tracking the sun all the
time, during day and during different
seasons. 18
10 MW Solar PV Plant, NTPC Unchahar
-
SOLAR TRACKING
Automatic solar tracking makes the system
very costly.
If the SPV panel is not tracking the sun then
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
it should be inclined to an angle equal to the
latitude of the location.
(28.81 for Unchahar)
Solar tracking allows to collect 30% extra
energy with the same SPV panel. 19
10 MW Solar PV Plant, NTPC Unchahar
-
BYPASS DIODE
Whenever any cell is under shed then it
will become reverse biased.
This reverse bias can be strong depending
upon the shadowing.
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
The strong reverse bias may force the
shaded cell to break down.
The extra power generated by the non
shaded cells will be dissipated in the
shaded cell.
This creates hot spots in the module. 20
10 MW Solar PV Plant, NTPC Unchahar
-
BYPASS DIODE
A bypass diode is used to pass the excess current.
Ideally this should be connected to each cell in
parallel with opposite polarity.
Normally one bypass diode is used for every 12-20
cells (20 in case of Unchahar).
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
21
10 MW Solar PV Plant, NTPC Unchahar
-
SINGLE LINE DIAGRAM OF SOLAR PLANT AT NTPC UNCHAHAR Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
Solar
Panels Inverter-A(630 kVA)
Inverter
Transformer(1.6 MVA)
800-550 V DC
800-550 V DC
350 V AC
350 V AC
33 kV
O
u
t
d
o
o
r
V
C
B
33kV U/G Cable
(Total 16
Nos.)
(Total 08
Nos.)
(
T
o
t
a
l
0
8
N
o
s
.
)
(Total 08
Incomers)
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
22
10 MW Solar PV Plant, NTPC Unchahar
ACDB
Inverter-B(630 kVA)
33kV HT
Panel
Incomers
O
u
t
g
o
i
n
g
-
1
O
u
t
g
o
i
n
g
-
2
2
0
0
k
V
A
A
u
x
.
T
r
a
n
s
.
33kV Switchyard
(Solar Plant)
T
r
a
n
s
m
i
s
s
i
o
n
L
i
n
e
(
0
.
8
k
m
O
/
H
&
3
.
7
5
k
m
U
/
G33/220 kv Switchyard
(Bay-5)
12.5 MVA
Transformer
(33/230 kV)
3
3
k
V
B
r
e
a
k
e
r
2
2
0
k
V
B
r
e
a
k
e
r
Isolator
Bus
Isolators
B
u
s
-
1
B
u
s
-
2
T
B
C
33 kV
415 V
Incomers)
L
i
n
e
I
s
o
l
a
t
o
r
Note: For more details refer NTPC Drawing No. 5708-004-PVE-P-034
-
COMBINING SOLAR CELLS
Solar cells can be electrically connected in
series (voltage add) or in parallel (current
add) to give any desired voltage and
current (or power).
Photovoltaic cells are typically sold in
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
Photovoltaic cells are typically sold in
modules (or panels) of 12, 24, 36, 48, 60
volts with power outputs of 50 to 200+
watts.
These are then combined into arrays to
give the desired power or watts. 23
10 MW Solar PV Plant, NTPC Unchahar
-
COMBINING SOLAR CELLS (AT UNCHAHAR) Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC
MODULE PARMETER
(60 cells in series)
Open Circuit Voltage (VOC) = 60 0.6 = 36 V
Short Circuit Current (ISC) = 8.5 A
Peak Power (Pmax) = 240 Wp
Voltage at peak power point (Vmax) = 29 V
Current at peak power point (Imax) = 8.28 A
STRING PARMETER
(A presentation by Amit K Gautam)
10 MW Solar PV Plant, NTPC Unchahar
24
/ STRING
(24 modules in series)
Open Circuit Voltage (VOC)
= 24 36 = 864 VOC
Short Circuit Current (ISC) = 8.5 A
Peak Power (Pmax) = 5762.88 Wp
Voltage at peak power point (Vmax) = 696 V
Current at peak power point (Imax) = 8.28 A
At Unchahar
Total No. of Modules = 42,240
Total No. of Strings = 1,760
-
COMBINING STRINGS
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
22 Strings in parallel
S
t
r
i
n
g
-
0
1
S
t
r
i
n
g
-
0
2
S
t
r
i
n
g
-
2
2
SMU PARMETER
(22 strings in parallel)
Voc = 864 V
Vmax= 696 V
ISC = 8.5 22 A=187 Amp
Imax = 8.28 22 A =182.16 Amp
(A presentation by Amit K Gautam)
10 MW Solar PV Plant, NTPC Unchahar
25
SMU
-1
SMU
-3
SMU
-5
SMU
-2
SMU
-4
Inverter
INVERTER PARMETER
(05 SMU in parallel)
Voc = 864 V
Vmax = 696 Volts
ISC = 187 5 A=935 Amp
Imax = 182.16 5 A =910.8 Amp
-
COMBINING INVERTERS
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
Two inverters are giving output to one transformer.
The transformer contains two primary(LT)& one
Two inverters are giving output to one transformer.
The transformer contains two primary(LT)& one
Inverter-A Inverter-B
350 V AC350 V AC
(A presentation by Amit K Gautam)
10 MW Solar PV Plant, NTPC Unchahar
26
primary(LT)& one secondary(HT) winding.
The transformer out put is fed to HT panel as shown in the diagram
primary(LT)& one secondary(HT) winding.
The transformer out put is fed to HT panel as shown in the diagram
5
33kV HT Panel
33 kV
33 kV
Outdoor VCB
33 kV
Indoor VCB
-
THE HT SWITCH-BOARD
All the 8 incomers are feeding power to the HT panel.
One outgoing feeder is for power evacuation/back-charging.
The other outgoing feeder is for auxiliary supplies.
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
I
n
c
o
m
e
r
-
1
(
P
a
n
e
l
-
2
)
I
n
c
o
m
e
r
-
2
(
P
a
n
e
l
-
3
)
I
n
c
o
m
e
r
-
3
(
P
a
n
e
l
-
4
)
I
n
c
o
m
e
r
-
4
(
P
a
n
e
l
-
5
)
I
n
c
o
m
e
r
-
5
(
P
a
n
e
l
-
7
)
I
n
c
o
m
e
r
-
6
(
P
a
n
e
l
-
8
)
I
n
c
o
m
e
r
-
7
(
P
a
n
e
l
-
9
)
I
n
c
o
m
e
r
-
8
(
P
a
n
e
l
-
1
0
)
I
n
c
o
m
e
r
-
9
(
S
P
A
R
E
)
P
a
n
e
l
-
1
2
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
27
10 MW Solar PV Plant, NTPC Unchahar
33 kV HT Panel
Outgoing Feeder
to
33kV Switchyard(Solar Plant)
Panel No. 6
33kV
Feeder
To 200 kVA
Auxiliary
Transformer(33kV/415V)
Panel No. 7
B
U
S
P
T
(
P
a
n
e
l
-
1
)
M
e
t
e
r
i
n
g
P
r
o
t
e
c
t
i
o
n
-
33 KV SWITCHYARD (AT SOLAR PLANT)Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
F
R
O
M
3
3
K
V
S
W
I
T
C
H
G
E
A
R
T
O
2
2
0
K
V
N
T
P
C
,
U
N
C
H
A
H
A
R
,
S
W
I
T
C
H
Y
A
R
D
ISOLATORM
E
T
E
R
I
N
G
P
T
M
E
T
E
R
I
N
G
P
T
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
28
10 MW Solar PV Plant, NTPC Unchahar
F
R
O
M
3
3
K
V
S
W
I
T
C
H
G
E
A
R
N
T
P
C
,
U
N
C
H
A
H
A
R
,
S
W
I
T
C
H
Y
A
R
D
E
A
R
T
H
S
W
I
T
C
H
E
A
R
T
H
S
W
I
T
C
H
M
E
T
E
R
I
N
G
P
T
M
E
T
E
R
I
N
G
C
T
M
E
T
E
R
I
N
G
C
T
L
I
G
H
T
N
I
N
G
A
R
R
E
S
T
E
R
M
E
T
E
R
I
N
G
P
T
-
33/220 KV SWITCHYARD (AT UNCHAHAR) : BAY-5 Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
1
2
.
5
M
V
A
P
o
w
e
r
T
r
a
n
s
f
o
r
m
e
r
(
3
3
/
2
3
0
k
V
)
E
a
r
t
h
S
w
i
t
c
h
e
s
T
B
C
L
i
g
h
t
n
i
n
g
A
r
r
e
s
t
e
r
33 kV Line
from
Solar Plant
Line Isolator Po
t
e
n
t
i
a
l
T
r
a
n
s
f
o
r
m
e
r
C
u
r
r
e
n
t
T
r
a
n
s
f
o
r
m
e
r
3
3
k
V
O
u
t
d
o
o
r
V
a
c
u
u
m
C
i
r
c
u
i
t
B
r
e
a
k
e
r
C
u
r
r
e
n
t
T
r
a
n
s
f
o
r
m
e
r
L
i
g
h
t
n
i
n
g
A
r
r
e
s
t
e
r
Y33 kV
(ONAN
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
29
10 MW Solar PV Plant, NTPC Unchahar
1
2
.
5
M
V
A
P
o
w
e
r
T
r
a
n
s
f
o
r
m
e
r
(
3
3
/
2
3
0
k
V
)
220 kV
Breaker
E
a
r
t
h
S
w
i
t
c
h
e
s
Bus
Isolators
B
u
s
-
1
B
u
s
-
2
T
B
C
LineIsolator
220 kV
Lightning
Arrester
(ONAN
Dyn11)
220 kV
TBC Breaker
Bus
Isolators
-
AUXILIARY POWER SCHEME Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
From 33 kV Main HT Panel
Y
SPARE
Electronic Interlock
200 kVA
Auxiliary Transformer
33/0.415kV
Dyn11 MCCB, TPN400A, 25kA
MCCB, TPN
400A, 25kA ACDB
E
x
t
e
r
n
a
l
i
l
l
u
m
i
n
a
t
i
o
n
2
D
B
4
D
B
6
D
B
8
D
B
3
D
B
5
D
B
7
D
B
W
a
t
e
r
P
u
m
p
s
L
o
c
a
l
S
t
a
r
t
e
r
F
i
e
l
d
I
n
s
t
r
u
m
e
n
t
D
B
C
M
C
S
R
o
o
m
D
B
(
L
i
g
h
t
s
,
A
C
U
n
i
t
s
f
o
r
S
C
A
D
A
R
o
o
m
,
A
l
l
s
o
c
k
e
t
s
,
A
u
x
i
l
i
a
r
y
p
o
w
e
r
f
o
r
M
a
i
n
H
T
p
a
n
e
l
)
1
D
B
(
L
i
g
h
t
s
,
V
e
n
t
.
E
x
h
a
u
s
t
,
A
u
x
.
f
o
r
V
C
B
S
e
c
u
r
i
t
y
R
o
o
m
D
B
(
L
i
g
h
t
s
,
A
u
x
.
S
o
c
k
e
t
s
,
V
e
n
t
.
E
x
h
a
u
s
t
)
P
o
w
e
r
S
o
c
k
e
t
O
f
f
i
c
e
A
r
e
a
(
T
o
C
o
m
p
u
t
e
r
s
)
S
P
A
R
E
(
6
f
e
e
d
e
r
s
)
B
a
t
t
e
r
y
C
h
a
r
g
e
r
6
3
A
M
C
C
B
6
3
A
M
C
C
B
6
3
A
M
C
C
B
6
3
A
M
C
C
B
6
3
A
M
C
C
B
6
3
A
M
C
C
B
6
3
A
M
C
C
B
6
3
A
M
C
C
B
6
3
A
M
C
C
B
3
2
A
M
C
C
B
3
2
A
M
C
C
B
3
2
A
M
C
C
B
1
6
A
M
C
C
B
1
6
A
M
C
C
B
1
6
A
M
C
C
B
6
3
A
M
C
C
B
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
30
10 MW Solar PV Plant, NTPC Unchahar
Emergency lights
in CMCS,
SCADA
& Inverter Rooms
E
m
e
r
g
e
n
c
y
I
n
v
e
r
t
e
r
2
1
5
k
V
A
(
C
M
C
S
)
150 AH Battery
(60 Min Backup)
230V, 50Hz,1Ph.
AC Supply
E
x
t
e
r
n
a
l
i
l
l
u
m
i
n
a
t
i
o
n
I
R
-
2
D
B
I
R
-
4
D
B
I
R
-
6
D
B
I
R
-
8
D
B
I
R
-
3
D
B
I
R
-
5
D
B
I
R
-
7
D
B
Lights, Vent. Exhaust,
Aux. for VCB
W
a
t
e
r
P
u
m
p
s
L
o
c
a
l
S
t
a
r
t
e
r
Bore Well Pumps
(3 feeders)
F
i
e
l
d
I
n
s
t
r
u
m
e
n
t
D
B
C
M
C
S
R
o
o
m
D
B
(
L
i
g
h
t
s
,
A
C
U
n
i
t
s
f
o
r
S
C
A
D
A
R
o
o
m
,
A
l
l
s
o
c
k
e
t
s
,
A
u
x
i
l
i
a
r
y
p
o
w
e
r
f
o
r
M
a
i
n
H
T
p
a
n
e
l
)
I
R
-
1
D
B
(
L
i
g
h
t
s
,
V
e
n
t
.
E
x
h
a
u
s
t
,
A
u
x
.
f
o
r
V
C
B
S
e
c
u
r
i
t
y
R
o
o
m
D
B
(
L
i
g
h
t
s
,
A
u
x
.
S
o
c
k
e
t
s
,
V
e
n
t
.
E
x
h
a
u
s
t
)
P
o
w
e
r
S
o
c
k
e
t
O
f
f
i
c
e
A
r
e
a
(
T
o
C
o
m
p
u
t
e
r
s
)
S
P
A
R
E
(
6
f
e
e
d
e
r
s
)
DCDB
To all VCBs
220 V DC
Note: For more detail please refer drawing no. 5708-004-PVE-P-077-03
3
2
A
M
C
C
B
2
2
0
V
D
C
,
2
0
0
A
H
-
SCADA System Architecture
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)Tuesday, June 17, 2014 10 MW Solar PV Plant, NTPC Unchahar 31
-
MODULE WASHING SYSTEM
There are 1760 structures/strings in site, it is
planned to clean every PV module thrice a
month.
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
All PV modules shall be cleaned in 10 days
(10% per day) and from the 11th day again
the first structure will be cleaned.
Like this, the cleaning process will be going
on through out the month. 32
10 MW Solar PV Plant, NTPC Unchahar
-
MODULE WASHING SYSTEM (CONTD.)
There are three bore-wells in the Solar Plant
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
Water Balance : Borewell-1, Tank Capacity 3000 litres
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
33
10 MW Solar PV Plant, NTPC Unchahar
-
Module Washing System (contd.)Water Balance : Borewell-2, Tank Capacity 4000 litres
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)34
Water Balance : Borewell-2, Tank Capacity 4000 litres
-
MODULEWASHING SYSTEMTuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)(A presentation by Amit K Gautam)
35
10 MW Solar PV Plant, NTPC Unchahar
-
Fire Fighting SystemCMCS & Inverter Room-1
Inverter
Transformer
-1
Aux.
Trans.
SCADA
Room
OVCB
-1
Ladies
Toilet
Gents
Toilet
Pantry
Inverter
Room-1
(A presentation by Amit K Gautam)36
*Drawing not to scale
Sand filled fire buckets
Smoke detectors
Fire extinguisher (DCP) 10 kg
Fire extinguisher (CO2) 9 kg
Fire extinguisher (Foam) 9 kg
Fire extinguisher (hand portable,
pressurized ) 9 kg
Legends
33kV Switchyard (Solar Plant)
Room-1 Store Room Battery Room
-
THANK YOU
Tuesday, June 17, 2014
10 MW Solar PV Plant, NTPC Unchahar
(A presentation by Amit K Gautam)
37
10 MW Solar PV Plant, NTPC Unchahar