Is the device suitable for outdoor use?

Yes, the IP65 version is designed for outdoor use, while IP20 is for indoor use.

What communication interfaces are optional?

Optional interfaces include RS485, USB, GPRS, WIFI, and Ethernet.

PWM Unloading Three-Phase Unloading System in on-Grid Wind Charge Controller

Name: PWM Unloading Three-Phase Unloading System in on-Grid Wind Charge Controller
Brand: Qingdao Greef New Energy Equipment Co., Ltd.
SKU: 2074647432

Shandong, ChinaQingdao Greef New Energy Equipment Co., Ltd.

US$700.00-18,000.00

1 set

Product profile

Customization

Available

After-sales Service

Yes

Warranty

1 Years for Free

Model NO.

GT-PCTC

Condition

New

Certification

Application

Wind Controller

Rated Voltage

24V

Function

Rectifier, Control, DC Output

Color

Grey

Type

Wind Controller, Wind Turbine Controller

Work Time

24 Hours

Display

LCD Screen

Transport Package

Carton / Playwooden Case

Trademark

GREEF

Origin

China

HS Code

90328990

Production Capacity

400 Sets Per Month

Key features

Dual Safety Control: Features PWM constant voltage and three-phase dump load brake systems for enhanced safety.

Solar Inverter Interface: Interfaces with Growatt, Deye, Solis, and Ivet solar inverters to adapt wind conditions.

Comprehensive LCD Display: LCD touch screen shows RPM, voltage, current, power, and monthly/yearly generation data.

Wide Power Range: Available in models from 1.5KW to 100KW to suit various wind turbine capacities.

Robust Protection: Includes over-voltage, grid cut-off, and arrester protection for reliable operation.

Flexible Communication: Optional RS485, USB, GPRS, WIFI, or Ethernet interfaces for remote monitoring.

1-Year Free Warranty: Provides a 1-year free warranty covering mechanical defects and parts.

CE Certified Quality: Product holds CE certification ensuring compliance with European safety standards.

Company profile

Qingdao Greef New Energy Equipment Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2014-03-18Nearest Port: QINGDAOAverage Response Time: ≤7.38hTerms of Payment: T/T, PayPal, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryQingdao Greef New Energy Equipment Co., Ltd. is identified as both a trading company and manufacturer/factory in China, offering wind turbines, permanent magnet generators, hybrid systems, and related equipment. Its stated capabilities include generator coverage from 500W to 5MW, two production lines, annual output of 1,000 wind turbine/permanent magnet generator sets, and 6–10 R&D engineers and quality-control staff. The company reports QHSE, ISO 9001, and HSE management certifications, CE-certified exports, warranty periods of 3–5 years, and after-sales service as part of its end-to-end offering. Evidence also supports customization through design, prototyping, production, and quality-control services. However, the provided information does not sufficiently establish financial credibility or a broad customer track record; only one buyer and one trade transaction are listed.

Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory. Its stated product portfolio includes wind turbine systems, permanent magnet generators, controllers, inverters, solar systems, and batteries, supporting a combined manufacturing and trading role.

CertificationsThe supplier states that its management systems include QHSE, ISO 9001, and HSE. It also states that products exported to Europe, South America, and North America carry CE certification, indicating documented management-system and product-certification claims.

After-Sales capabilityThe company describes end-to-end services including after-sales service and states that exported products have 3–5 year warranty periods. It also claims rapid response and guaranteed quality and on-time delivery through Alibaba Trade Assurance, providing explicit support for post-sale capability.

R&D capabilityThe supplier states that its permanent magnet generators range from 500W to 5MW and offers multiple renewable-energy technologies, including vertical- and horizontal-axis wind turbines, hybrid systems, and disc coreless generators. Its stated engineering and renewable-energy innovation activities support innovation capability, although no independently verified R&D results are provided.

Production capacityThe supplier reports two production lines and annual output of 1,000 wind turbine/permanent magnet generator sets. It also states generator coverage from 500W to 5MW and has 6–10 quality-control staff, providing explicit evidence of established production capacity.

Customization capabilityThe company explicitly claims customized end-to-end solutions covering design planning, schematic development, 3D renderings, physical prototyping, volume production, quality control, and after-sales service. This directly supports customization capability across product-development and delivery stages.

Product Q&A

Q:What is the warranty period for this controller?

We provide a 1-year free warranty for this product.

Q:Which solar inverter brands are compatible?

It interfaces with solar inverters from brands like Growatt, Deye, Solis, and Ivet.

Q:What safety features does the controller have?

It features double safety control systems including PWM constant voltage and a three-phase dump load brake system.

Q:What information is displayed on the LCD screen?

The LCD displays generator speed, input/output voltage and current, output power, grid data, and power generation statistics for today, month, and year.

Q:What are the available power ratings?

The product is available in models ranging from 1.5KW to 100KW.