Good Quality 0.75-5.5kw VFD Water Pump System DC to AC Controller Auto Drive Frequency Inverter
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Product Highlights
- Solar Pump Support: Supports PV DC input and grid AC input with 99% MPPT tracking efficiency.
- Advanced Control Modes: Features SVC mode, V/F control, and built-in PID for precise closed-loop process control.
- High Startup Torque: Delivers 150% startup torque for reliable performance under heavy loads.
- Water Shortage Protection: Software algorithm protects against water shortage without requiring extra hardware.
- Multi-Speed PLC: Simple PLC function allows up to 16 speeds via terminal state combinations.
- Customizable Boost: Torque boost is customizable from 0.1% to 30.0% for specific application needs.
- Auto Voltage Regulation: AVR function automatically maintains constant output voltage during mains fluctuations.
- Flexible Frequency Resolution: Digital setting resolution of 0.01Hz and analog setting of maximum frequency 0.025%.
Product Attributes
- Customization
- Available
- Application
- Three Phase Transducer
- Output Type
- Triple
- Model NO.
- WST800(0.75-5.5KW)
- Principle of Work
- V/F Control Transducer
- Main Circuit Type
- Voltage
- Nature of DC Power
- Voltage Variable-Frequency Drive
- Brand
- Winston
- Input Frequency Resolution
- Digital Setting 0.01Hz
- Analog Setting
- Maximum Frequency 0.025%
- Control Mode
- SVC Mode ,V/F Control Mode
- Startup Torque
- 150%
- Speed Range
- 1:50
- Speed Stability Accuracy
- 1%
- Torque Boost
- Fixed Boost,Customized Boost 0.1%-30.0%
- Voltage
- 220V/380V
- Current
- 4A-13A
- Power
- 0.75-5.5kw
- Transport Package
- Standard Export Packing
- Specification
- CE
- Trademark
- Winston/OEM/Neutral
- Origin
- China, Zhejiang, Wenzhou
- Production Capacity
- 2000 Pieces/Week
- Package Size
- 25.00cm * 14.00cm * 20.00cm
- Package Gross Weight
- 1.700kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Good Quality 0.75-5.5kw VFD Water Pump System DC to AC Controller Auto Drive Frequency Inverter
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Product Description

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1. integrated more macro function,such as SPWS mode,3 pump cycle,Numerical etc.
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2. Carrier frequency 1.0-16kHz the carrier frequency is automatically adjusted based on the load features.
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3. input frequency resolution: digital setting 0.01Hz,Analog setting: maximum frequency 0.025%.
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4. Control mode: SVC mode ,V/F control mode
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5. Startup torque: 150%
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6. Speed range: 1:50
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7. Speed stability accuracy: 1%
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8. Overload capacity: G Type:110% 150% 1min 200% 4s
P Type:105% 120% 1min 150% 1s
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9. Torque boost: fixed boost,Customized boost 0.1%-30.0%
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10. V/F curve: straight_line V/F curve,multi_point V/F curve,Square V/F curve
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11. Ramp mode: straight_line ramp,S_curve ramp two groups of acceleration /deceleration time with the range of 0.00-300.0s(m)
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12. DC braking: DC braking frequency:0.00Hz to maximum frequency ,braking time: 0.0-36.0s,braking action current value:0.0%-100.0%
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13. JOG control: JOG frequency range: 0.00Hz to maximum frequency JOG acceleration/deceleration time 0.00-300.0s
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14. Simple PLC,multi_speed running: it implements up to 16 speeds via the simple PLC function or combination of DI terminal states.
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15. Built_in PID: it implements the closed_loop process control system easily.
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16. Auto voltage regulation(AVR): it can keep constant of output voltage automatically when the mains voltage changes.
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17. Over current stall control: the current is limited automatically during the running so as to avoid frequency tripping due to over current.
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18. Rapid current limit: it decreases the over current faults to the minimum and ensures normal running of theAC drive.
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1. Chemical industry ,oil collection,mine crashing
2. Fluid machinery:Fan water pump,blower,music fountain.
3. Paper_making equipment,chemical industry
4. Pharmaceutical industry,textile industry
5. Public mechanical equipment,such as precision CNC machine tools etc.
6. Solar pump,EPS




1. Full English LCD interface, manual paperless, convenient for foreign customers to use;
2. Support PV DC INPUT and GRID AC input;
3. Power-on automatic start;
4. Inner Over-voltage, under-voltage, over-current and other conventional protection;
5. Advanced MPPT Algorithm ensures that the tracking efficiency of solar power can reach 99%;
6. Software Algorithm water shortage protection without any detection hardware.






About the Supplier
This supplier has been audited by CTI. Verify the report on the official CTI website with ID "QIP-ASR2531622". Items marked "" are certified.
Company Profile
Yueqing Winston Electric Co., Ltd, established in 2010, is a rapid growing enterprise who integrate the production and marketing of Industrial electrical appliance. After seven years' effort and development, now we have become one of the leading electrical manufacturers and suppliers in China. We are always keeping very kind relationship with many strong electrical factories and Insearch institutes in China. We have been enjoying high reputation in electrical market domestically and internationally.
Our factory focus on formulating most kinds of electrical in China. Which include proximity sensor, power supply, motor soft starter, frequency inverter, relay, thermostat, heater, transformer and so on. We are capable of supplying our products in various kinds of packaging according to customers' specific requirements. Now we are producing more than 100 kinds of electrical products which are exported to about 80 countries and regions all over the world. But Winston have never stop going forward, in order to control the cost, and supply competitive price for our customers, in 2012, together with our partners, we build another factory, which producing circuit breaker, distribution box, AC contactor, etc.
Winston have an special professional registration department, who in charge of the domestic registration and oversea registration. We can help our current or potential customers to do registration work. We have a good relation with domestic famous institute who can provide us with authoritative impurity analysis and toxicological report. Quality and Service are always the top concern in Winston. We provide full set of service, including data and samples, which are available on request.
Winston's Mission is: "Focus on the industrial Electrical protection, serve the worldwide Electrical. And our tenet is: "Hold integrity, Forge Ahead, Serve the world". We are always trying our best to offer the best services and the most competitive prices with high quality goods for our customer, It's the way we win our customers and the market.
Given Chance and full space, we would show you all of our advantages and let's grow up together. I am sure we can establish long term and friendly business relationship with your esteemed company because of your trust and our excellent service.
Our advantage:
1. Quality is our culture.
2. We have our own developing and designing team, which ensure our own technological and innoative products for customers.
3. For any customers who have new idea about some products, just let us know, we can according to your idea provide a unique design of the products.
4. For any customers who send us the samples of some products, we will design and develop better ones based on the samples!
5. For every customer, we will choose the best fit material, and also innovative material for their products!
6. We can according to any customers' design to do sample of them!
7. We are manufacturer, factory, so we have the ability of mass production!
8.24*7 service, professional sales group.
Technical Support:
Most of our Winston products adopt Germany advanced technology, and the producing machine are all equipped with advance system, all our workers are experienced and skilled!
Besides, for some products material are all use imported parts.
So the quality and safety are guaranteed!
After sale service:
Our working team and sales teams can guarantee a fast and high efficiency after-sale service for our product sold to everywhere of the global.
Winston has a complete supply system for the parts, which can guarantee the company's demand of product accessories. We have stocked the common parts in the major cooperation point world widely, which can shorten the supply time largely. So if have any question, just contact us any time at your convenience!
Transportation service:
We can guarantee the fast and safe delivery to the customers' hand.
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- 3rd Floor,Liufeng Building Liushi Town, Wenzhou, Zhejiang, China
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Plant Area
- 300 square meters
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Number of Employees
- 20
-
Registered Capital
- 100,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union
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International Commercial Terms(Incoterms)
- FOB
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Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays -
Nearest Port
- Ningbo Port
-
Minimum Order Quantity
- 10 Pieces
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Supply Chain Partners
- 15
Our Production Capability & Technical Expertise
-
Main Products
- Proximity Sensor, Thermostat and Heater, Switching Power Supply, Motor Soft Starter, Frequency Inverter, Transformer, Relay, Circuit Breaker, Photoelectric Sensor, AC Contactor
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Customization Options
- Customization from Designs, Customization from Samples
-
ODM Service Available
- Yes
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OEM Service Available
- Yes
-
R&D Engineers
- 1 people
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2010-05-05
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Export Year
- 14 years
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Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, Africa
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Repeat Buyers Choice
- 50%~80%
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Annual Export Revenue
- 2,000,000 USD
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Number of Foreign Trading Staff
- 9
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Overseas Agent/Branch
- No
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New Products Launched in Last year
- Yes
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- Does this inverter support solar power input?
- Yes, it supports PV DC input and grid AC input, featuring an advanced MPPT algorithm with 99% tracking efficiency.
- What is the startup torque capability?
- The device provides a high startup torque of 150%, ensuring reliable operation under load.
- Can the torque boost be customized?
- Yes, the torque boost is customizable, ranging from 0.1% to 30.0%, in addition to fixed boost options.
- What control modes are available?
- It supports SVC mode and V/F control mode, along with a built-in PID for closed-loop process control.
- How many speed levels can be set?
- Up to 16 speeds can be implemented using the simple PLC function or by combining DI terminal states.
- Is there protection against water shortage?
- Yes, it includes a software algorithm for water shortage protection that does not require additional detection hardware.
- What are the payment terms?
- Payment terms include LC, T/T, D/P, PayPal, and Western Union.
- What is the minimum order quantity?
- The minimum order quantity is 10 pieces.
Send your message to this supplier
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