SG320 Solar Pump Inverter

Solar Pumping system becomes more and more popular, it can be applied to daily ( underground water), agriculture  irrigation, forestry irrigation, desert control, pasture animal husbandry, water supply for islands, wastewater treatment  engineering , and so on.
In recent years, with the promotion of the utilization of new energy resources, solar pumping systems are more and more used in municipal engineering, city center squares, parks, tourist sites, resorts and hotels, the landscapes and fountain systems in the residential areas. This system is composed of a solar array, a pump and solar pumping inverter, or GPRS remote control model.
Based on the design philosophy that it is better to store water than electricity, there is no energy storing device such as store battery in the system.

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KEWO SG320 Solar Water Pumping System And Solar Pump Inverter

Fully automatic system using variable speed drive compatible with AC, 1 /3-phase, submersible and surface mount pumps, and high efficiency PMSM Pumps. The system is composed of a PV generator, a pump and a solar pump drive. Based on the design philosophy that it is more efficient to store water rather than electricity, there is no energy storing device such as storage battery in the system. The system is prepared to be combined with a elevated water storage, e.g. water tower or an uphill tank installation.

KEWO Solar Water Pumping Solution is a fully automatic system designed to provide water at affordable cost for
people with limited or no access to electricity. It uses the most advanced S300/3200 variable speed drive to
regulate the speed of a 3-phase AC motor depending upon the solar energy available from the solar panel.

SG320 solar pump inverter feature:

25hp solar inverter for water pump


Technical specification of KEWO solar pump inverter

**Solar pump drive specification when FA-00 set to 1&2 for solar pumping controlling function.
Recommended MPPT voltage rangeVmpp 131 to 350 VDC for 1S (80V to 350VDC input, 3PH 110 to 220VAC output)
Vmpp 280 to 375VDC for 2S ( 150V to 450VDC input, 3PH 220 to 240VAC output)
Vmpp 486 to 750 VDC for 4T ( 350V to 800VDC input, 3PH 380 to 460VAC output)
Recommended input Voc and VmppvoltageVoc 180(VDC), Vmpp 155(VDC) for 1S model or 110V AC pumps
Voc 355(VDC), Vmpp 310(VDC) for 2S model or 220V AC pumps
Voc 621(VDC), Vmpp 540(VDC) for 4T model or 380V AC pumps
Motor typeControl for permanent magnet synchronous motor and asynchronous motor pumps.
Rated output voltage3-Phase,110V/160V/220V. 3-phase, 220V/380V/460V
Output frequency range0~maximum frequency 600Hz.
MPPT efficiencyAbove 99.2%,
Ambient temperature rangeG-type for submersible pumps, 150% rated current for 60s, 180% rated current for 2s
P type for general pumps, 120% rated current for 60s, 150% rated current for 2s
Solar pump control special performanceMPPT ( maximum power point tracking), CVT (constant voltage tracking), auto/manual operation, dry run protection, low stop frequency protection, minimum power input, motor maximum current protection, flow calculating, energy generated calculating and water tank level detected
Protection functionPhase loss protection, phase short circuit protection, ground to phase circuit protection , input and output short circuit protection. Stall protection
Protection degreeIP20, Air force cooling
Running modeMPPT or CVT ( A and Q MPPT maths)
AltitudeBelow 1000m; above 1000mderated 1% for every additional 100m.
AC input  backup circuit
CE, Design based on vector control drive S300 and S3200 series, more specification please refer to S300 or S320 vector control drive operation manual
Technical specification when it used for speed and torque controlling of motor as FA00 set to 0.
voltage, frequencySingle phase 220V, 3 phase, 220V,380V660V and 1140V.
Power 0.75kw to 37kw.
Control mode0: VF control ; 1: Vectorized VF control ; 2:Open loop vector control 1 ; 3: High performance open loop vector control 2
Maximum frequency0-650Hz
Multi-functionsPID Control, Carrier Frequency Adjustable, Current Limiter, Speed Search, Momentary Power Loss Restart,16 Step Speed (Max), 3-Wire connection, Slip Compensation, Frequency Jump,  DC braking, Upper/Lower Frequency, Torque control, Compatible for PMSM and IM, built in RS485, counting, fault information checking, fully fault protection function, frequency combination reference.


* Built in good lightning protection module to minimize function
* Dual CPU model, independent air duct for good ventilation.
* Built hall for DC bus circuit for better performance of solar pumping control.


SG320 solar pump inverter models:

Irrigation of land, domestic water supply, fish farming, livestock, swimming pool, fountain, drip irrigation & sprinkler,industrial application, swimming pool…
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