75 kW Frequency Inverter, 3 Phase 220V, 380V, 460V

$3,197.41

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75 kW (100 hp) 3 phase inverter with IP20 enclosure rating, output voltage 3 phase AC 0~input voltage, and Input voltage 3 phase 230V /400V /460V AC ±15%. The high frequency inverter with sensorless vector control can work at (–10℃, 40℃). Equipped with forced air cooling and RS485 communication mode, three phase inverter's speed regulation reaches 1:100.

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Delivery date: 3-10 days

SKU: GK3000-4T0750G

Input Voltage (Three Phase) ±15% *

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Overview
Specs
FAQ
Reviews

Overview

75 kW (100 hp) good performance frequency inverter, three phase 240V, 420V, 440V, 460V, RS485 communication mode, and IP 20 protection rating. Installation includes wall-mounted and floor-mounted. It is usually used for motor drives, renewable energy systems, uninterruptible power supplies (UPS), and commercial applications.

Feature

3 phase inverter has multiple-functional performance, such as over current protection, overvoltage protection, undervoltage protection,
overheating protection, and overload protection, etc.
3 phase frequency drive inverter with RS485 communication mode can work at (–10℃, 40℃),
The Interior PID controller of 75kw variable frequency inverter is convenient for making a closed-loop system.
Come with an electronic display, 3 phase inverter has IP20 enclosure rating, stable performance, and easy installation.

Details

Multiple Function Keyboard

The multiple-function keyboard of three phase inverter controls the operation of the variable frequency drive inverter, such as start, stop, and acceleration. The user can press the corresponding buttons to make the 75kw frequency drive inverter work according to set 100hp frequency inverter parameters or control the 3 phase inverter machine's operating speed.

Electronic Screen

The electronic screen of the 75 kW inverter is a key component in the inverter control system, providing users with an intuitive and real-time information display. The digital screen can monitor the operating status of the 100hp frequency inverter in real-time, including input and output voltage, frequency, and current waveform, which helps to detect abnormal conditions in time.

Rugged Casing

The 3 phase frequency drive inverter's rugged casing plays multiple roles in its design. It is not only about protecting the circuits and internal components inside the device but also about the safety, stability, and reliability of the device. The frequency drive inverter not only protects the internal circuits and components but also provides safety protection.

Applications

Car Manufacturer

Ship Operation

Energy Generation

Building Construction

Specs

Basics	Model	GK3000-4T0750G/GK3000-2T0750G
	Capacity	75 kW (100 hp)
	Shipping weight	50 kg
	Dimension	618398306 mm
I/O Feature	Rated current	152A at 380V ~ 480V, 304A at 220V ~ 240V
	Input voltage	3 phase 230V /400V /460V AC ±15% (Optional)
	Input frequency	50Hz/ 60Hz
	Output voltage	3 phase AC 0~input voltage
	Output frequency	0~1000Hz
	Over load capacity	150% of rated current for 1 minute, 180% of rated current for 3 seconds
Control Feature	Control mode	V/F control; Sensorless vector control;
	Communication	RS485
	Speed regulation	1:100
	Start torque	150% of rating torque at 1 Hz
	Speed control accuracy	≤±0.5% of rating synchronous speed
	Frequency precision	Digital setting: max frequency x± 0.01%; Analog setting: max frequency x± 0.2%
	Frequency resolution	Analog setting: 0.1% of max frequency; Digital setting: 0.01Hz
	Torque boost	Automatic torque boost, manual torque boost 0.1%~30.0%
	Interior PID controller	Be convenient to make closed-loop system
	Automatic energy save running	Optimize V/F curve automatically based on the load to realize power save running
	Automatic voltage regulation (AVR)	Can keep constant output voltage when power source voltage varies.
	Automatic current limiting	Limit running current automatically to avoid frequent over-current which will cause trip
Environment	Enclosure rating	IP 20
	Temperature	–10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5%
	Humidity	5%-95%, without condensation
	Altitude	≤1000m; VFD will be derated if above 1000m
	Impingement and oscillation	Normal running: 5.9m/s2 (0.6g); Transportation: 15m/s2 (1.5g)
	Store environment	–20℃~ +60℃; no dust, no corrosive gas, no direct sunlight

FAQ

How efficient is a 3-phase inverter?

Quality of components: The type and quality of switching devices (IGBTs, MOSFETs) significantly affect efficiency. High-quality, low-loss components reduce power loss during switching. The quality of capacitors, inductors, and other passive components also impacts efficiency.
Switching frequency: Higher switching frequencies can lead to better output waveform quality but may increase switching losses, potentially reducing efficiency.
Load conditions: Efficiency can vary with the load. 3 phase inverters are typically most efficient when operating near their rated capacity. Efficiency may decrease at very low or very high loads.
Thermal management: Effective cooling and thermal management reduce losses due to overheating and improve overall efficiency.
Control algorithms: Advanced control algorithms like Space Vector PWM (SVPWM) can optimize switching patterns to reduce losses and improve efficiency.
DC-AC conversion: The process of converting DC to AC inherently involves some losses. The design and implementation of this conversion process affect the overall efficiency.
Peak efficiency: This is the highest efficiency the variable frequency inverter can achieve under optimal conditions, typically around 97-98% for high-quality inverters.

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Existing reviews

A reliable frequency inverter, but be mindful of ventilation.

This 75 kW frequency inverter completes the job with smooth speed control and solid performance. The sensorless vector control works well, and the voltage flexibility is nice. However, the forced air cooling could be more efficient—it tends to heat up under heavy loads sometimes.

From: Orville Alcott | Date: 3/4/2025 6:52 PM

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Good frequency converter

The inverter on the Inverter.com online store has three input voltages to choose from. It has changed to only one voltage selection mode, which meets my different needs. I like this inverter very much and will buy it again.

From: Metie Metie | Date: 12/16/2020 8:41 PM