Designing of off grid solar system

[syedbukhari]

240VAC @ 35A = 8400 starting watts for 5 seconds (likely much higher, but your meter can't read it)
240 @ 15A = 3600 running watts (starting is generally at least 5x this, or about 18,000watts, will need a very stout inverter, wires & batteries to supply this - 8400 w @ 48V = 175 amps starting, 75a running, from 48VDC)

what will you suggest if i run this pump without batteries.
About inverter size and array setting
220 volts are used in Pakistan
frequency 50 hertz

[Mike90250]

I wants to run the pump from grid supply in case of emergency only. The pump will run on solar in day time it starts running from morning and keeps going till evening.
The pumps takes 35 amp at its start up and
settles at 15 amp at its running. It is a single phase and will run continuesly for 5-8 hrs every day.
Please advice accordingly.

240VAC @ 35A = 8400 starting watts for 5 seconds (likely much higher, but your meter can't read it)
240 @ 15A = 3600 running watts (starting is generally at least 5x this, or about 18,000watts, will need a very stout inverter, wires & batteries to supply this - 8400 w @ 48V = 175 amps starting, 75a running, from 48VDC)

[Sunking]

I wants to run the pump from grid supply in case of emergency only. The pump will run on solar in day time it starts running from morning and keeps going till evening. The pumps takes 35 amp at its start up and settles at 15 amp at its running. It is a single phase and will run continuesly for 5-8 hrs every day. Please advice accordingly.

OK I am going to help you out here and give you exactly what you want.

Based on running 8 hour per day you are going to need

Panel wattage = 9600 watts divided into 3 systems of 3200 watts each with its own separate Charge Controller
Battery capacity configured @ 48 volts = 3000 AH, approx weight = 9000 lbs or 4100 Kg
Charge Controllers = 3 units 80 Amp MPPT
Inverter = Industrial Grade 10 Kva

[syedbukhari]

Then what you want is a Grid - Tie inverter. It feeds power into the grid, and will offset your pump's usage.

As for an inverter that can power a 5hp pump. It will be VERY expensive. It's likely a 3-phase motor, and consumes 6,000 watts, with several times that power needed to spin it up.

I wants to run the pump from grid supply in case of emergency only. The pump will run on solar in day time it starts running from morning and keeps going till evening. The pumps takes 35 amp at its start up and settles at 15 amp at its running. It is a single phase and will run continuesly for 5-8 hrs every day. Please advice accordingly.

[Mike90250]

I think I failed to present my point of view
In case of agri pump I am not interested to run this on batteries,i just wants its working in day light with the help of inveter . There is no need of batteries. Yes I need batteries in home and fuel station model.

Then what you want is a Grid - Tie inverter. It feeds power into the grid, and will offset your pump's usage.

As for an inverter that can power a 5hp pump. It will be VERY expensive. It's likely a 3-phase motor, and consumes 6,000 watts, with several times that power needed to spin it up.

[russ]

@ Naptown, Yes you are thinking right,it sounds mad, but things are much different in Pakistan than USA,

Quit with the nonsense! Things are very much the same in many ways. The design would be done the same and then local availability/conditions would be taken in to account.

[syedbukhari]

Shah Jee, Can you tell me the bore size & length of the tube well & type of pump you are using ?

Mian sb bore size is 10 inches,
Discharge is 4 inch
Bore depth is 30 meter
Mono block motor

[syedbukhari]

And how many gallons per minute do you need.
does this pump into storage? or into ditches, how is the water distributed?

Flow rate is 200 GPM
Water distribution is through diches

[Naptown]

@ Naptown, Yes you are thinking right,it sounds mad, but things are much different in Pakistan than USA,

First of all, You must try to understand the power shortage problem & available solar products/solutions in Pakistan
then you will be at a better position to suggest & guide us members from Pakistan.

I have learned a lot on this forum & will appreciate any sort of help from you,

Thanks.

The process for designing a system is the same no matter where it is located
Step one identify daily load in Watt hours
Step 2 identify daily insolation.

[Mian Jee]

Irrigation system is deep well water

Shah Jee, Can you tell me the bore size & length of the tube well & type of pump you are using ?

[Naptown]

Irrigation system is deep well water

And how many gallons per minute do you need.
does this pump into storage? or into ditches, how is the water distributed?

[Mian Jee]

Information like you posted is exactly why he came here.
There is no basis for your system as there is not enough information given to formulate a design.
I see why the OP is skeptical of the locals.

@ Naptown, Yes you are thinking right,it sounds mad, but things are much different in Pakistan than USA,

First of all, You must try to understand the power shortage problem & available solar products/solutions in Pakistan
then you will be at a better position to suggest & guide us members from Pakistan.

I have learned a lot on this forum & will appreciate any sort of help from you,

Thanks.

[syedbukhari]

Please describe the irrigation system
Open ditch, pressure sprinklers, Water tower or elevated storage and drip irrigation? how is the area irrigated?

Irrigation system is deep well water

[Naptown]

Please describe the irrigation system
Open ditch, pressure sprinklers, Water tower or elevated storage and drip irrigation? how is the area irrigated?

[syedbukhari]

The pump is not going to be able to run off batteries, at least not 5 hp worth. it's way too big.

I think I failed to present my point of view
In case of agri pump I am not interested to run this on batteries,i just wants its working in day light with the help of inveter . There is no need of batteries. Yes I need batteries in home and fuel station model.