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CCHN is a trusted U.S. registered company in industrial automation & controls, CCHN's goal is helping saving your money by bypassing all kinds of local dealers/agents in buying industrial automation products from Chinese manufacturers directly. You will be enjoyed to get free tech support on how to choose, how to wire, how to commissioning with CCHN professional engineers. Shopping for your automation systems on CCHN one-stop online store now. The price on the website only for sample reference. for Mass order,please send the enquiry to us.

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Foam cutting is a device for processing materials in the chemical industry such as foam and sponges. It mainly uses the high

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CCHN Industry
 
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CCHN Industry

CCHN is a trusted U.S. registered company in industrial automation & controls, CCHN's goal is helping saving your money by bypassing all kinds of local dealers/agents in buying industrial automation products from Chinese manufacturers directly. You will be enjoyed to get free tech support on how to choose, how to wire, how to commissioning with CCHN professional engineers. Shopping for your automation systems on CCHN one-stop online store now. The price on the website only for sample reference. for Mass order,please send the enquiry to us.

Blog

Foam cutting is a device for processing materials in the chemical industry such as foam and sponges. It mainly uses the high

...
75 hp (55 kW) VFD, 3 Phase 230V, 440V, 480V
 
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75 hp (55 kW) VFD, 3 Phase 230V, 440V, 480V


$2591.20
75 hp (55 kW) VFD with low cost, three phase 230V, 440V, 480V variable frequency drive with good performance, RS485 available
SKU: GK3000-4T0550G
Free Shipping Worldwide
Delivery date: 6-12 days

75 hp (55 kW) heavy duty variable frequency drive for energy savings, three phase 230V, 440V, 480V for choice.

Specification:

BasicsModelGK3000-4T0550G/ GK3000-2T0550G
Capacity75 hp (55 kW)
Shipping weight31 kg
Dimension555*310*260 mm
I/O FeatureRated current112 A
Input voltage3 phase 230V /440V /480V AC ±15% (Optional)
Input frequency50Hz/ 60Hz
Output voltage3 phase AC 0~input voltage
Output frequency0.00~400.00Hz
Over load capacity150% of rated current for 1 minute, 180% of rated current for 3 seconds
Control FeatureControl modeV/F control;
Sensorless vector control;
CommunicationRS485
Speed regulation1:100
Start torque150% of rating torque at 1 Hz
Speed control accuracy≤±0.5% of rating synchronous speed
Frequency precisionDigital setting: max frequency x± 0.01%;
Analog setting: max frequency x± 0.2%
Frequency resolutionAnalog setting: 0.1% of max frequency;
Digital setting: 0.01Hz
Torque boostAutomatic torque boost, manual torque boost 0.1%~30.0%
Interior PID controllerBe convenient to make closed-loop system
Automatic energy save runningOptimize 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 limitingLimit running current automatically to avoid frequent over-current which will cause trip
EnvironmentEnclosure ratingIP 20
Temperature–10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5%
Humidity5%-95%, without condensation
Altitude≤1000m; VFD will be derated if above 1000m
Impingement and oscillationNormal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g)
Store environment–20℃~ +60℃; no dust, no corrosive gas, no direct sunlight

Tips: Variable Frequency Drive Overload
Overload is also one of the frequent failures of VFD. When meet with the problem, we should first analyze if the motor overloads or VFD itself overloads. Generally speaking, the motor has high overload capacity, as long as the VFD parameter is set properly, it will not appear motor overload. But the VFD overload capacity is relatively not high. It is easy to appear overload alarm. We can detect the VFD output voltage, output current, and detect circuit and other trouble points one by one for trouble shooting.
For example, a 75hp VFD often displays "OL" when running.
Analysis and maintenance: According to the response from customer, this VFD was originally used in the 50hp motor, but now it is used for 75hp motor without resetting any parameters, so the problem may be out on the parameters. After checking, set VFD limit current as 75hp motor rated current instead of 50hp, and finally the problem is solved.