Hooking up a single motor

**Naptown** · 06-01-2012, 01:26 PM

Originally posted by thedjwcc

I am looking to hook up a single dc electric motor to a couple of panels. No batteries. Do the amps and voltage output created by the panels needs to be changed for the motor specifications? Is there some sort of controler that will help prevent burning out the motor so its not trying to run with low sunlight?, It wouldnt do me any good at low RPMs anyway. This will be the only thing run by the panels, I have included the specs for both below for what I am looking at for this project.

Motor -
H.P. = 1/2
Base RPM = 1750
Arm. Volt. = 90 VDC
NEMA Frame = 56C
F.L Amps = 5.3

2 x Panels
Single panel specs -
Pmax: 240 Watts
Voc: 37.6 Volts
Vmp: 30.6 Volts
Isc: 8.22 Amps
Imp: 7.87 Amps

For that application I would use 3 panels minimum in a string of 3
This may be marginal but the voltage on the panels is not high enough for the motor with only 2.
There is a device to allow you to run the motor without batteries but I am having a senior moment right now and don't remember the name.

**Mike90250** · 06-01-2012, 06:42 PM

There are LINEAR CURRENT DRIVERS for dc motors, but I don't know of any for that large of motor

**Naptown** · 06-01-2012, 06:45 PM

Originally posted by Mike90250

There are LINEAR CURRENT DRIVERS for dc motors, but I don't know of any for that large of motor

Thank you Mike for rescuing me from my senior moment.

I wonder what the motor is? sounds like a pump to me.

Hooking up a single motor

Hooking up a single motor

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