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8/2/2019 Design, Instal,Solar Array -Progress 2
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DESIGN &
INSTALLATION
OF A SOLAR ARRAY
Supervised by:
Prof. Dr. Tabrez. A. Shami
Jalil. A .Mirza
Team Members:Khurram Hashmi
Rao Najam
M.Abid Mustufa
M.Zahid Mustufa
8/2/2019 Design, Instal,Solar Array -Progress 2
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Abstract
To power the lighting load of university front
room on Photovoltaic Solar Panels.
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Project phases Description No of Units
Phase-I Load replacement:
Installing LED saver lamps in place of Compact Fluorescent
lamps. Reduces the load by more than Half
Bringing it down to about 400 Watts
20 (9watt)
+
36 (6 watt)
Phase-II Designing and Installing the solar array:
Includes 8 solar modules 100 Watts each. 800 watt system.
additional support structures as cast Iron stands (to be
provided by the supplier)
includes placing the solar array within campus so as to
harvest maximum solar energy
Solar Inverter (1.5 kVA pure sine Wave)
8
(100 watt each)
Phase-III Short circuit protection and isolation:
Requires Miniature Circuit breakers (MCB), Diodes and DC
fuses
2- MCBs
4 -Fuses
Phase-IV Automated Change Over Implementation:Through an electromechanical relays(contactor)
1
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PHASE - 1
Load Replacement
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Lux. Values - Front office
1 Lux. = 10 foot candle
344
268
217 175
296
240 202
185
186
247209
Entry / Exit
Corner
Office Table
Set-1
Corner
Office Table
Set-2
198
Illumenance values (in Lux)With Compact Fluorescent Lamps (CFL)
1 Lux = 1 Lumen / m2
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9 watt Warm White LED lamps
Tested forillumenance
(in Lux)
116.7 Lux Power factor
(we found it nearunity)
Draws 20 mA
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Replacing Lights. . .
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8/2/2019 Design, Instal,Solar Array -Progress 2
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With CFLs
With LEDs
Lighting Comparison
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illumenance values (in Lux)
with LED lamps
185
211
110 175
200
98.1 201
186
96
147129.9
Entry / Exit
CornerOffice Table
Set-1
CornerOffice TableSet-2
1 Lux = 1 Lumen / m2
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PHASE - 2
Solar Array Design
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Solar modules
PHOTOVOLTAIC SOLAR
SYSTEM
DC/AC
DC/AC
Inverter
CHARGE /
DISCHARGE
Controller
LOAD
Automated
Change over
(PV System / ACmains)
Battery Bank
In one assembly
AC mains
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System Layout
100Watt
100Watt
BatteryCharge
/Discharge
Controller
26AH
26AH
24
volts
12 + 12 = 24 volts
Inverter1.5 kVA
Sine wave
Load
Confine within 12 feet of array toavoid DC voltage drop
Wellsee - 60 A
Battery bank
JQX-62F-2ZPower Relay
WAPDA
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Solar Module Specs
Max Power Output 100 Watt
Max Voltage 18 Volts
Open Circuit Voltage 22.7 Volts
Max Current 5.41 A
Short Circuit Current 5.55 A
Max System voltage 60 Volts
Mono crystalline.
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Optimum Angle Tilt
Co-ordinates of the site: (UCP)
Latitude : 31027 North
Longitude: 74016 East
Pakistan located in Northern Hemisphere (Tropics)
Calculated Tilt
270 Facing true South
270
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Selection Between Solar Array
Output and Grid PowerJQX-62F 2Z
Features:
Model: power relay JQX-62F 2Z 80AOutline dimensions: 95 x 70x 67mm
3) Max. switching current:
80A
4) Max. switching voltage:
28V DC / 250V AC
5) Coil data:a) Nominal voltage:
6 - 220V DC / 6 - 380V ACb) Pick-up voltage:
AC90%, DC75%
d) Coil power: 2.0 W / 2.5VA
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Our Connections
Wapda ACSupply
Inverter Output
Shorted with coil
To Load
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Testing of CFLs for
Luminosity (lux)
Power factor
Methodology
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Lighting Load Front Room with
CFLs
CFLs
(Rated Wattage)
Wattage Number Total watts
Indoor-1 18 20 360
Indoor-2 11 36 396
Total 756
(Volt Amps Drawn)
total current
(amps)
Voltage
(volts)
Total VA
Indoor 2.78 230 639.4power factor 0.872 lead
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Testing CFLs and LEDs
P.C.
C.C.
Power Factor Meter
V
A
Lamp
AC Supply230 Volts60 Hz
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Results -1
READINGS
Power Factor meter
Type Rated
watts
Actual
watts
Voltage Current PF(calculated) PF
(from PF
meter)
Lag/lead phase
angle
watts watts volts mA deg
CFL 11 11 227 46.9 0.97 0.95 lead 19
CFL 18 17 227 73.3 0.98 0.95 lead 18
CFL 23 23 227 94.7 0.94 0.94 lead 20
LED 6 6 227 26.8 0.98 1 Lag 5
LED 7 6 227 26.7 0.99 1 Lag 5
LED 12 14 226 58.2 0.94 1 lead 5
Set up self volts read : 226 V
Set up self Amps : 2.9 mA
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Color And Lux Values OfLed- Savers
Color Wattage Current
drawn
Volt.Amps Illumenance
At
8ft 10 inchesWattage
of CFL
to be
replaced
% of exitisng
equivalent
CFL lamp
Watts Amps volt amps Lux Watt
Pure
White
12 0.07 16.1 247 18 67%
Pure
White
6 0.025 5.75 97.6 11 55%
Warm
White
9 0.02 4.54 116 18 50%
Warm
White
7 0.03 6.9 37.4 11 64%
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Physical Appearance Rating Lux Comments
12 Watt
Pure white Light
247
Lux
To replace 18
watt CFL
7 Watt
Warm White Light
37.4
Lux
To replace 11
watt CFL
9 WattWarm White Light
116Lux
To replace 18watt CFL
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Physical Appearance Rating Lux Comments
3 Watt
Warm White light
- can replace
11 watt CFLOutdoor
wall sockets
(Not tested
for Lux and
VA)
18 Watt
Pure White Light
- too bright to
replace 18
Watt CFL
and does not
reduce Load(Not tested
for Lux and
VA)
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0
5
1015
20
25
30
35
40
45
450 600 1200 1700 2700
Watts
Lumens
LED
CFL
LED vs. CFL (half the wattage)
Replacing CFLs with LED energy savers
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Thank You . .
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supplementary
Supplementary Slides
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800 Watt System Utilization
Utilised Capacity
0
100
200
300
Jan Feb Mar AprMay Jun Jul Aug Sep Oct Nov Dec
kWh
Utilisation of 800 Watt System supplying 400 Watts Load
Utilised Capacity Available Capacity
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Comparison of energy received
against energy generated - NREL
0
50
100
150
200
250
300
350
kWh
Energy / montha 235 Watt panel
energy recievd/month kWh
Inverter conversion