JEPL/tools.py

'''
JMK Engineering Inc. Python Library for design and such.
by: Jeff MacKinnon

email: jeff@jmkengineering.com

Commandline tools for JEPL functions

'''

import argparse
import jepl.jepl as jmk


#
# functions for the functions
#

# General

def va(args):
	x = [1,3,None]
	if args.phases in x:
		if args.phases == None:
			phases = 3
		else:
			phases = args.phases
		result = jmk.va(args.voltage, args.current, phases=phases)
		print ( str(round(result,2))+ "VA")
	else:
		print(args.phases)


# Circuits

def condsize(args):
	if args.temp == None:
		temp = 60
	else:
		temp = args.temp
	if args.material == None:
		material = 'cu'
	else:
		material = args.material
	if args.code == None:
		code = 'CEC'
	else:
		code = args.code
	if args.raceway == None:
		raceway = True
	elif args.raceway == 'n':
		raceway = False
	else:
		raceway = True
	if args.ambient == None:
		ambient = 30
	else:
		ambient = args.ambient
	if args.maxsize == None:
		maxsize = 500
	else:
		maxsize = 500
	if args.type == None:
		loadtype = None
	else:
		valid_load_type = ['normal','xfmr','xfmrp','xfmrs','motor',None]
		if args.type not in valid_load_type:
			print(args.type + " is not a valid load_type.")
		else:
			loadtype = args.type

	result = jmk.conductor_size(args.current, temp = temp, material = material, code = code, raceway = raceway, max = maxsize, load_type = loadtype )
	print(result)

def condamp(args):
	if args.temp == None:
		temp = 60
	else:
		temp = args.temp
	if args.material == None:
		material = 'cu'
	else:
		material = args.material
	if args.code == None:
		code = 'CEC'
	else:
		code = args.code
	if args.raceway == None:
		raceway = True
	elif args.raceway == 'n':
		raceway = False
	else:
		raceway = True
	if args.ambient == None:
		ambient = 30
	else:
		ambient = args.ambient
	result = jmk.conductor_ampacity(args.conductor, temp = temp, material = material, code = code, raceway = raceway)
	print(result)



# Solar

def temp_adj_Voc(args):
	if args.beta == None:
		beta = -0.5
	else:
		beta = args.beta
	if args.stctemp == None:
		stctemp = 25
	else:
		stctemp = args.stctemp
	result = jmk.temp_adj_Voc(args.voc, args.temperature, beta, stctemp)
	print(str(round(result,2))+"V")


#
# Parse the options 
#

try:
	parser = argparse.ArgumentParser()
	subparsers = parser.add_subparsers(
    	title="tools", 
		help="Commandline Functions"
	)

#
# This section is for the jepl_general functions
#

# Calcuating VA

	va_parser = subparsers.add_parser("va", help="calculate VA (S)")
	va_parser.add_argument("voltage", type=float,help="Voltage of the circuit")
	va_parser.add_argument("current", type=float,help="Current of the circuit.")
	va_parser.add_argument("-p","--phases", type=int,help="Phases of the circuit. It should be either 1 or 3, and we will assume 3 if it is not used.")
	va_parser.set_defaults(func=va)


#
# Circuit Tools
#


	condsize_parser = subparsers.add_parser("condsize", help="Determine the conductor size for a defined current and load type.")
	condsize_parser.add_argument("current", type=float, help="The current of the circuit.")
	condsize_parser.add_argument("-t", "--temp", type=int, help="The temperature rating for the insulation, if none included is 60C. default: 60" )
	condsize_parser.add_argument("-m", "--material", type=str, help="This should be cu or al, for copper or aluminum. If none defined cu will be used.")
	condsize_parser.add_argument("-c", "--code", type=str, help="Currently this will either be CEC or NEC. default CEC")
	condsize_parser.add_argument("-r", "--raceway", type=str, help="If the conductors are in a raceway use y for yes and n for no.")
	condsize_parser.add_argument("-a", "--ambient", type=float, help="Ambient temperature in celsious. default: 30")
	condsize_parser.add_argument("-x", "--maxsize", type=str, help="Maximum conductor size in AWG/kcmil. default: 500")
	condsize_parser.add_argument("--type",type=str, help="Load type {}'normal','xfmr','xfmrp','xfmrs','motor',None}, default: None")
	condsize_parser.set_defaults(func=condsize)

	condamp_parser = subparsers.add_parser("condamp", help="Determine the ampacity of a conductor.")
	condamp_parser.add_argument("conductor", type=str, help="TThe conductor size in AWG/kcmil")
	condamp_parser.add_argument("-t", "--temp", type=int, help="The temperature rating for the insulation, if none included is 60C. default: 60" )
	condamp_parser.add_argument("-m", "--material", type=str, help="This should be cu or al, for copper or aluminum. If none defined cu will be used.")
	condamp_parser.add_argument("-c", "--code", type=str, help="Currently this will either be CEC or NEC. default CEC")
	condamp_parser.add_argument("-r", "--raceway", type=str, help="If the conductors are in a raceway use y for yes and n for no.")
	condamp_parser.add_argument("-a", "--ambient", type=float, help="Ambient temperature in celsious. default: 30")
	condamp_parser.set_defaults(func=condamp)



#
# Solar Tools
#

	tempvoc = subparsers.add_parser("tempVoc", help="Calculate the temperature adjusted Voc of a PV panel.")
	tempvoc.add_argument("voc", type=float,help="Open circuit voltage of the panel.")
	tempvoc.add_argument("temperature", type=float, help="Temperature the panel will be at.")
	tempvoc.add_argument("-b", "--beta", type=float, help="Panel Beta value, if none is added -0.5 will be used.")
	tempvoc.add_argument("-t", "--stctemp", type=float, help="The STC temp. If none is added 25C will be used.")
	tempvoc.set_defaults(func=temp_adj_Voc)



# This runs the function that was selected with the arguments in the command.
	args = parser.parse_args()
	args.func(args)



except argparse.ArgumentError as e:
    #log.error("Error parsing arguments")
    raise e


#else:
#	print(f"Something clever")