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EW-70KW Three-Phase to Single-Phase Adjustable Variable-Frequency Power Supply
Transformers And Substation Equipment

EW-70KW Three-Phase to Single-Phase Adjustable Va | RFQ Sourcing Details

Transformers And Substation Equipment · Quote on request

This is a product procurement detail page: check specs, images, category context and related sourcing paths before sending an RFQ.

Quote on request

Product specs

CategoryTransformers and Substation Equipment
Unitset
ModelEW-70KW
InterfaceTouch LCD
MeasurementsVoltage, current, active power, and apparent power
Output phaseSingle-phase
CustomizationAvailable
Example inputThree-phase 380 V AC, 50/60 Hz
CategoryTransformers And Substation Equipment
AvailabilityInquiry required
Source date2026-07-20

Buyer's Digest

Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Transformers And Substation Equipment. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.

Original product description

The EW-70KW is described as a three-phase-to-single-phase variable-frequency power supply for test, industrial, and special power-demand scenarios.

The source description states that it converts three-phase AC, with 380 V at 50/60 Hz given as an example input, into a single-phase output with adjustable voltage and frequency. Example output settings include 220 V, 110 V, and 100 V, while the stated frequency adjustment range is 40–70 Hz.

Operators can set parameters through a touch LCD interface. The equipment is also described as supporting graphical editing, voltage-gradient and transient functions, and stepped voltage changes with configurable change points and timing. Measurement functions cover voltage, current, active power, and apparent power.

A synchronous output signal is available when voltage and frequency change, although the source identifies this signal as being for reference.

For integration into a test or monitoring system, the listed communication interface supports RS232/RS485 using the Modbus protocol for remote control and The stated working-environment temperature is 0–40°C. The source also states that output-voltage fluctuation remains within 1 V as the load changes from 0% to 100%.

Buyer confirmation is essential because the source uses conflicting product labels. It calls the equipment a compact outdoor 100 kVA, 11 kV/415 V substation transformer in several places, but identifies model EW-70KW and primarily describes an adjustable variable-frequency power supply.

Before procurement, obtain an approved datasheet and wiring diagram confirming the equipment type, rated power or capacity, exact input configuration, adjustable output range, phase arrangement, enclosure and outdoor suitability, cooling method, duty cycle, dimensions, weight, terminals, and installation requirements.

Also confirm the applicable CCC certification scope and request the supporting certificate for the exact supplied configuration.

Buyers should define required voltage and frequency settings, load characteristics, overload behavior, measurement accuracy, Modbus register map, included software, communication connectors, transient-response requirements, packaging, production schedule, shipping method, warranty, commissioning support, and acceptance-test procedure in the purchase specification.

EW-70KW | Applications and Buyer Notes

EW-70KW is organized as a sourcing-ready Transformers And Substation Equipment reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements a

Applications

  • Initial shortlist building for related product or supplier options.
  • Specification and application fit review before bulk purchasing.
  • Category, keyword and detail-page comparison before sending an RFQ.

Key specifications

Category
Transformers and Substation EquipmentBased on visible page data; confirm exact value in the RFQ.
Unit
setBased on visible page data; confirm exact value in the RFQ.
Model
EW-70KWBased on visible page data; confirm exact value in the RFQ.
Interface
Touch LCDBased on visible page data; confirm exact value in the RFQ.
Measurements
Voltage, current, active power, and apparent powerBased on visible page data; confirm exact value in the RFQ.
Output phase
Single-phaseBased on visible page data; confirm exact value in the RFQ.
Customization
AvailableBased on visible page data; confirm exact value in the RFQ.
Example input
Three-phase 380 V AC, 50/60 HzBased on visible page data; confirm exact value in the RFQ.

Buyer tips

  • State quantity range and split-delivery needs before price comparison.
  • Add certification, material or inspection standards when they affect acceptance.
  • For time-sensitive projects, include target arrival date and destination.
  • For special applications, describe operating condition, installation environment and duty cycle.

FAQ

What should buyers confirm first?

Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.

Can buyers inquire when specs are incomplete?

Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.

How should this listing be evaluated?

Check title, category, specifications and related keywords against the actual sourcing requirement.

Source mix: ugc

Key specifications

CategoryTransformers and Substation Equipment
Unitset
ModelEW-70KW
InterfaceTouch LCD
MeasurementsVoltage, current, active power, and apparent power
Output phaseSingle-phase
CustomizationAvailable
Example inputThree-phase 380 V AC, 50/60 Hz
Listed originChina
CommunicationsRS232/RS485 with Modbus protocol
Production capacity500 sets per month
Transport packagingExport standard packaging
Listed certificationCCC
Protection functionsOverpower, overcurrent, overvoltage, short circuit, and overtemperature
Example output voltages220 V, 110 V, and 100 V
Frequency adjustment range40–70 Hz
Load-change voltage fluctuationWithin 1 V from 0% to 100% load
Working environment temperature0–40°C

Product sourcing keywords

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