What protection functions are included?

It includes protection against over-voltage, over-current, over-temperature, overload, and short circuits.

What is the efficiency of the device?

The efficiency is greater than or equal to 90%.

What is the maximum power capacity?

The power capacity ranges from 5kVA up to 4000kVA.

Isolated Stable AC Power Supply Output Pure and Stable Voltage & Frequency Regulator

Name: Isolated Stable AC Power Supply Output Pure and Stable Voltage & Frequency Regulator
Brand: Qingdao Greef New Energy Equipment Co., Ltd.
SKU: 2221585875

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

US$1,100.00-290,490.00

1 Piece

Product profile

Customization

Available

Application

Power

Phase

Three

Core

Core-type Transformer

Cooling Method

Dry-type Transformer

Certification

Usage

Single-phase Transformer, Combined Transformer, Power Transformer

Frequency Characteristics

High Frequency

Circuit Mode

IGBT/Spwm Pulse Width Adjustment Mode

Power Capacity(Va)

5kVA-4000kVA

AC Input Frequency

30-100Hz

AC Output Frequency

50Hz/60Hz Adjustable

Cooling Model

Compulsive Fan Cooling

Relative Humidity

0-90%(No Condensing)

Altitude

1500meters

Transport Package

Packing

Origin

China

HS Code

85023100

Production Capacity

400 Set/Sets Per Month

Key features

Pure Sine Wave Output: Provides extremely stable and pure sine wave AC power to protect sensitive equipment.

Wide Input Frequency Range: Accepts AC input frequency from 30Hz to 100Hz for global compatibility.

Adjustable Output Frequency: Output frequency can be customized to 50Hz or 60Hz based on requirements.

Fast Reaction Time: Reaction time is less than 2 milliseconds for immediate power correction.

Advanced SPWM Technology: Utilizes IGBT/SPWM pulse width adjustment mode for efficient power conversion.

Remote Monitoring Capability: Supports remote monitoring via RS485, WIFI, or GPRS with IoT cloud integration.

Comprehensive Protection: Features over-voltage, over-current, over-temperature, overload, and short-circuit protection.

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: ≤7.24hTerms 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.