def write_notes(system, Vnominal=240.0):
stationClass = 1
name, usaf = geo.closestUSAF( geo.zipToCoordinates(system.zipcode), stationClass)
mintemp = epw.minimum(usaf)
twopercentTemp = epw.twopercent(usaf)
fields = []
for i in set(system.shape):
print "PV Module Ratings @ STC"
print "Module Make:", i.array.make
fields.append(('Text1ModuleMake',i.array.make))
print "Module Model:", i.array.model
fields.append(('Text1ModuleModel',i.array.model))
print "Max Power-Point Current (Imp):",i.array.Impp
fields.append(('MAX POWERPOINT CURRENT IMP',i.array.Impp))
print "Max Power-Point Voltage (Vmp):",i.array.Vmpp
fields.append(('MAX POWERPOINT VOLTAGE VMP',i.array.Vmpp))
print "Open-Circuit Voltage (Voc):",i.array.Voc
fields.append(('OPENCIRCUIT VOLTAGE VOC',i.array.Voc))
print "Short-Circuit Current (Isc):",i.array.Isc
fields.append(('SHORTCIRCUIT CURRENT ISC',i.array.Isc))
fields.append(('MAX SERIES FUSE OCPD','15'))
print "Maximum Power (Pmax):",i.array.Pmax
fields.append(('MAXIMUM POWER PMAX',i.array.Pmax))
print "Module Rated Max Voltage:",i.array.Vrated
fields.append(('MAX VOLTAGE TYP 600VDC',i.array.Vrated))
fields.append(('VOC TEMP COEFF mVoC or oC',round(i.array.TkVoc,2)))
fields.append(('VOC TEMP COEFF mVoC','On'))
print "Inverter Make:",i.make
fields.append(('INVERTER MAKE',i.make))
print "Inverter Model:",i.model
fields.append(('INVERTER MODEL',i.model))
print "Max Power", i.Paco
fields.append(('MAX POWER 40oC',i.model))
fields.append(('NOMINAL AC VOLTAGE',240))
print "Max AC Current: %s" % round(i.Paco/Vnominal,2)
fields.append(('MAX AC CURRENT', round(i.Paco/Vnominal,2)))
fields.append(('MAX DC VOLT RATING',i.model))
print "Max AC OCPD Rating: %s" % ee.ocpSize(i.Paco/Vnominal*1.25)
print "Max System Voltage:",round(i.array.Vmax(mintemp),1)
print "AC Output Current: %s" % \
round(sum([i.Paco for i in system.shape])/Vnominal,2)
fields.append(('AC OUTPUT CURRENT', \
round(sum([i.Paco for i in system.shape])/Vnominal,2)))
print "Nominal AC Voltage: %s" % Vnominal
fields.append(('NOMINAL AC VOLTAGE_2',i.ac_voltage))
print "Minimum Temperature: %s C" % mintemp
print "2 Percent Max: %s C" % twopercentTemp
from fdfgen import forge_fdf
fdf = forge_fdf("",fields,[],[],[])
fdf_file = open("data.fdf","w")
fdf_file.write(fdf)
fdf_file.close()
import shlex
from subprocess import call
cmd = shlex.split("pdftk Example2-Micro-Inverter.pdf fill_form data.fdf output output.pdf flatten")
rc = call(cmd)
def vd(a,l,size= None,v = 240, pf=-1, tAmb=30, percent=1, material='CU', \
c='STEEL',verbose = True):
oc = a * 1.25
ocp = ee.ocpSize(oc)
#print "OCP Size: %s" % ocp
#egc = ee.findEGC(ocp,material)
vdrop = v * percent/100.0
#ratio = ee.CMIL[ee.conductorAmpacity(a,material).size]*1.0/ee.CMIL[ee.findEGC(ocp)]
if size:
conductor = ee.conductor(size,material)
conductor = ee.checkAmpacity(conductor, ocp, tAmb)
vdrop = conductor.vd(a,l, v = v, pf=pf, tAmb=tAmb,c=c)
vdp=(vdrop * 100/v)
if verbose:
print "Percent drop: %s%%" % round(vdp,2)
#print "EGC Size: %s" % incEGC(conductor,egc,ratio)
return conductor
else:
if verbose:
print "Allowed Voltage drop: %sV" % vdrop
sets = 0
conductor = None
#todo: refactor for recursive. should take away the need for nec import
while conductor is None:
sets += 1
for s in nec.CONDUCTOR_STANDARD_SIZES:
#print s, material
conductor = ee.conductor(s,material)
#print conductor
if conductor.vd(a*1.0/sets,l, v = v, pf=pf, tAmb=tAmb,c=c) < vdrop:
break
else:
conductor = None
if sets > 1:
print "%s sets of %s" % (sets, conductor)
#print "EGC Size: %s" % incEGC(conductor,egc,ratio)
return [conductor for i in range(sets)]
else:
if verbose:
print "Conductor %s" % conductor
conductor = ee.checkAmpacity(conductor, ocp/sets, tAmb)
#print "EGC Size: %s %s" % ( incEGC(conductor,egc,ratio),'CU'#conductor.material)
if verbose:
print "Drop: %s V" % round(conductor.vd(a*1.0/sets,l, v = v, pf=pf, tAmb=tAmb,c=c),2)
return conductor
