37 kW Three Phase Solar Pump Inverter

37kW / 50 hp solar pump inverter, supports both DC (from 350VDC to 750VDC) and AC power (380v, 400v, 480v) inputs solar pump controller, in-built MPPT with high efficiency, adjust the output frequency in real time according to changes in sunlight intensity.

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SKU: GK330-037D-3B

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Delivery date: 6-12 days

Input Voltage (Three Phase) ±15% *

$1,878.54

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Products specifications

User Manual	Solar Pump Inverter User Manual

Inexpensive 37 kW solar pump inverter / VFD, invert the DC supply of the solar panel to three-phase alternating current, auto adjust AC motor speed and water flow.

Specification

Basics	Model	GK330-037D-3B
	Capacity	37 kW (50 hp)
	Weight	30 kg
	Product dimension	490310274 mm
Input Feature	Input voltage	DC 350~750V Three phase 380/480V AC (±15%)
	Rated input current	76 A at 380/480V
	Input frequency	47~63 Hz
Output Feature	Output voltage	Three phase 0~rated input voltage
	Rated output current	75 A at 380/480V
	Output frequency	0~400 Hz
Control	Control mode	SVPWM, SVC
	Motor type	Asynchronous motor
	Speed ratio	Asynchronous motor 1:100 (SVC)
	Speed control accuracy	±0.2%(SVC)
	Speed fluctuation	±0.3%(SVC)
	Torque response	<20ms (SVC)
	Torque control accuracy	10%(SVC)
	Starting torque	0.25 Hz / 150% (SVC)
	Overload capability	150% of rated current: 1 minute 150% of rated current: 10 seconds 200% of rated current: 1 second
Running control	Frequency setting method	Digital settingAnalog setting Pulse frequency setting Multi-step speed running settingSimple PLC setting PID setting, MODBUS communication setting Shift between the set combination and set channel
	Operation method	Keyboard/ terminal/ communication
	Auto-adjustment of voltage	Keep a stable voltage automatically when the gird voltage transients
	Fault protection	Overcurrent, overvoltage, undervoltage, overheating, phase loss, overload, etc.
	Special functions for PV water pumps	Maximum power tracking, pre-warning at weak light, auto wake up at strong light, Pre-warning when full water, auto wake up at low water level, Underload pre-warning and protection of water level sensor, When pre-warning, the inverter is in stand-by
Environment	Environment temperature	-10℃~40℃ (environment temperature is among 40℃~50℃; please use it with derating)
	Storage temperature	-20℃~65℃
	Environment humidity	Less than 90 % R.H, not exceeding 90% R.H
	Altitude, Vibration	Below 1000 m, below 5.9m/s² (=0.6g)
	Cooling method	Forced cooling and natural air cooling
	Enclosure rating	IP 20

Features

Solar pump inverter adopts advanced MPPT control technology, real-time detection of solar panels power voltage, tracking the highest voltage and current, efficiency is as high as 98%.
It can enter automatically to sleep mode when the intensity of sunlight is weak, as well as can exit the sleep mode when the intensity of sunlight is becoming strong.
Automatic sleep when on high-water level and automatic restart when on low-water level to realize automatic control through water level.
Multiple power supply design, power input can be solar energy photovoltaic DC power supply (DC 200 ~ 350V, DC 350~750V), can also be single phase or three phase AC power, simple wiring.
Smart operation, water level detection and operation panel to prevent overflow, dry pumping (optional).
Protect itself in trouble and improve the reliability of whole system.

solar pump inverter wiring application Tips: The power air switch trips after the solar pump system is powered up
Check if the input power supply is grounded or shorted. If this problem does not exist, check if the rectifier bridge of the solar pump inverter has broken down. If it is damaged, seek service from the manufacturer.