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electrical:solar:charge_controller

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electrical:solar:charge_controller [2020/05/25 09:24]
frater_secessus [how to choose]
electrical:solar:charge_controller [2020/06/30 06:43] (current)
frater_secessus [Using LOAD output]
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 >  Inductive loads can generate large voltage spikes that may damage the controller’s lightning protection devices.((http://​www.morningstarcorp.com/​wp-content/​uploads/​2014/​02/​TS.IOM_.Operators_Manual.04.EN_1.pdf)) ​ >  Inductive loads can generate large voltage spikes that may damage the controller’s lightning protection devices.((http://​www.morningstarcorp.com/​wp-content/​uploads/​2014/​02/​TS.IOM_.Operators_Manual.04.EN_1.pdf)) ​
 although an exception is made for the SunSaver MPPT which "​Handles inductive loads without problems."​((http://​support.morningstarcorp.com/​wp-content/​uploads/​2014/​07/​SunSaverMPPT-FeaturesBenefits.pdf)) although an exception is made for the SunSaver MPPT which "​Handles inductive loads without problems."​((http://​support.morningstarcorp.com/​wp-content/​uploads/​2014/​07/​SunSaverMPPT-FeaturesBenefits.pdf))
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 One can run loads heavier than the controller is rated for (or inductive/​capacitive loads) by connecting those load[s] to a relay((http://​support.morningstarcorp.com/​wp-content/​uploads/​2014/​07/​ALL.DIG_.Load_Control_Using_A_Relay.01.EN_.pdf)),​ which is in turn connected to the LOAD output. ​ This still allows for Low Voltage Disconnect because the CC will turn off power to the LOAD output, which turns off power to the relay, which turns power off to the load. One can run loads heavier than the controller is rated for (or inductive/​capacitive loads) by connecting those load[s] to a relay((http://​support.morningstarcorp.com/​wp-content/​uploads/​2014/​07/​ALL.DIG_.Load_Control_Using_A_Relay.01.EN_.pdf)),​ which is in turn connected to the LOAD output. ​ This still allows for Low Voltage Disconnect because the CC will turn off power to the LOAD output, which turns off power to the relay, which turns power off to the load.
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 You may also be able to use the LOAD output to create a [[electrical:​solar:​nonessential|separate 12v circuit for non-essential ("​opportunity"​) loads]]. You may also be able to use the LOAD output to create a [[electrical:​solar:​nonessential|separate 12v circuit for non-essential ("​opportunity"​) loads]].
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 Note:  in wind and hydro power applications the output can be sequenced so that LOAD is activated only when batteries are fully charged. ​ This is called a "dump load" because those power sources need to be able to "​dump"​ excess current to prevent damage to themselves. ​ Dump loads are not necessary in solar because panels can be open- or short-circuited without damage. Note:  in wind and hydro power applications the output can be sequenced so that LOAD is activated only when batteries are fully charged. ​ This is called a "dump load" because those power sources need to be able to "​dump"​ excess current to prevent damage to themselves. ​ Dump loads are not necessary in solar because panels can be open- or short-circuited without damage.
 ===== positive ground controllers ===== ===== positive ground controllers =====
electrical/solar/charge_controller.txt · Last modified: 2020/06/30 06:43 by frater_secessus