Hi,
Am looking for a circuit / device box, which I could attach to Incoming AC Mains (220V ), Incoming DC Solar ( 24/48V DC), AC battery Charger of the Inverter, and the battery bank. Purpose of this would be (1) Monitor Battery bank DC Volts and (2) Switching the AC Mains On/Off.
I'll explain the above in detail below:
My objective is to have DC as first priority for charging batteries, and AC mains to have second priority.
The device to keep eye over the DC Volts of battery bank. For 24VDC system if battery bank drops to 23.5 VDC ( and for 48VDC system if battery bank drops below 47 VDC), the AC Mains battery charger be connected, and batteries be charged through Incoming AC Mains.
But till the time battery bank has adequate volts, the battery charging be done through Incoming DC Solar Energy through Solar charge controller.
At number of times, , people require that as at day-time Solar Energy is available, so their battery bank be charged ONLY through DC Solar coming through Solar Charge Controllers. This will save them on AC mains costs.
In the evening / night after sun has set, then as soon as the battery bank volts drop below the defined limit, the AC charging of battery to be started so that energy could be used for the home appliances. Before that point the AC mains to remain cut-off, and save on the Electricity costs.
Though in the market such Solar Hybrid Inverters are available, but as most of our clients already have an inverter with AC Battery charger ( they usually call it UPS ), so we like to have a special circuit which we can connect to existing inverters / chargers of the client. In such desired circuits we will give 2 inputs (a) Solar DC , (b) AC Mains. And further that circuit would be connected to battery bank as well, for monitoring battery volts..
For a 24VDC system, till the time battery bank has 23.5 VDC output, this circuit must keep the AC Mains to battery charger cut-off. And as soon as battery volts drop below 23.5VDC it connects the AC Mains. This scenario will reman in place for whole night, till next morning sun comes up. and Solar DC is available, then at that point again the AC mains is cut-off, and battery be charged through Solar DC only.
We would like to configure these circuits for 24VDC, as well as 48VDC systems. The AC mains are at 220V. In most of the cases the Inv erters are of 1000 Watts, 1500 Watts and 2000 Watts.
Please advise.
Regards.
Omar
Am looking for a circuit / device box, which I could attach to Incoming AC Mains (220V ), Incoming DC Solar ( 24/48V DC), AC battery Charger of the Inverter, and the battery bank. Purpose of this would be (1) Monitor Battery bank DC Volts and (2) Switching the AC Mains On/Off.
I'll explain the above in detail below:
My objective is to have DC as first priority for charging batteries, and AC mains to have second priority.
The device to keep eye over the DC Volts of battery bank. For 24VDC system if battery bank drops to 23.5 VDC ( and for 48VDC system if battery bank drops below 47 VDC), the AC Mains battery charger be connected, and batteries be charged through Incoming AC Mains.
But till the time battery bank has adequate volts, the battery charging be done through Incoming DC Solar Energy through Solar charge controller.
At number of times, , people require that as at day-time Solar Energy is available, so their battery bank be charged ONLY through DC Solar coming through Solar Charge Controllers. This will save them on AC mains costs.
In the evening / night after sun has set, then as soon as the battery bank volts drop below the defined limit, the AC charging of battery to be started so that energy could be used for the home appliances. Before that point the AC mains to remain cut-off, and save on the Electricity costs.
Though in the market such Solar Hybrid Inverters are available, but as most of our clients already have an inverter with AC Battery charger ( they usually call it UPS ), so we like to have a special circuit which we can connect to existing inverters / chargers of the client. In such desired circuits we will give 2 inputs (a) Solar DC , (b) AC Mains. And further that circuit would be connected to battery bank as well, for monitoring battery volts..
For a 24VDC system, till the time battery bank has 23.5 VDC output, this circuit must keep the AC Mains to battery charger cut-off. And as soon as battery volts drop below 23.5VDC it connects the AC Mains. This scenario will reman in place for whole night, till next morning sun comes up. and Solar DC is available, then at that point again the AC mains is cut-off, and battery be charged through Solar DC only.
We would like to configure these circuits for 24VDC, as well as 48VDC systems. The AC mains are at 220V. In most of the cases the Inv erters are of 1000 Watts, 1500 Watts and 2000 Watts.
Please advise.
Regards.
Omar
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