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Advanced High-Performance Transformer Turns Ratio Tester - High-Sensitivity Accurate Reliable Stable Wide-Measurement-Range Provide Other Electrical Tester
US$900.00-1,503.00
1 Piece

Product profile

Customization

Available

After-sales Service

Provided

Warranty

One-Year

Model NO.

NRB300

Ratio Measurement Range

0.8—5000

Ratio Measurement Accuracy

0.1% (0.8—1000) 0.2% (1000—2000) 0.5% (2000—50

Test Voltage

AC20V—230V

Operating Temperature

-10℃—40℃

Environment Humidity

10%—85%

Operating Power

AC230V ± 10%

Transport Package

Wooden Box with Foam Inside

Specification

380×260×160mm

Trademark

Refine On

Origin

China

HS Code

903082000

Production Capacity

100 Set Per Week

Key features

Automatic 3-Phase Measurement: Automatically completes three-phase ratio, winding wiring, and group label measurement with one press.
High Precision Accuracy: Achieves 0.1% accuracy for ratios 0.8-1000, 0.2% for 1000-2000, and 0.5% for 2000-10000.
Wide Measurement Range: Supports ratio measurement range from 0.8 to 10000 with test voltage AC20V-230V.
Smart Protection Features: Includes overload and over-voltage protection with automatic voltage reduction for large excitation currents.
On-Load Tap Tracking: Automatically tracks on-load tap positions without requiring repeated parameter input.
Data Storage & Printing: Built-in power-down memory and micro-printer for long-term preservation and immediate printing of results.
Computer Connectivity: Equipped with RS-232 interface for enhanced data management and communication with computers.
Compact & Portable Design: Small size (380x260x160mm) and light weight (6kg) for easy operation and field testing.

Company profile

Refine On (Hebei) Electric Power Technology Co., Ltd.
R&D Capabilities100% Finished Products InspectionODM ServicesProduction Process Visualization
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Tianjin PortAverage Response Time: ≤1.36h

AI-Powered supplier vetting

SummaryThe supplier is a technology-driven enterprise integrating R&D, production, sales, and after-sales service, offering electrical testing equipment, specialized tools, meters, and related products. It reports new products within the past year, ODM capability, broad customization options, and OEM service for well-known brands. Overseas service is stated for Vietnam and Russia, including installation, debugging, maintenance, repair, and training, but the supplier has no overseas warehouses, showrooms, agents, or branches and has not participated in offline trade shows. Quality assurance and raw-material traceability are reported, while several service-control procedures lack written records. Financial information is inconsistent and insufficient for assessment.
Supplier typeThe supplier identifies as a technology-driven enterprise integrating R&D, production, sales, and after-sales service. Its listed products include electrical tools, intelligent meters, energy measurement equipment, fault-location and cable-testing equipment, and specialized instruments, indicating a manufacturer-oriented technology supplier.
After-Sales capabilityThe supplier states that it provides after-sales service and offers installation, debugging, maintenance, repair, and training in Vietnam and Russia. However, it has no overseas warehouse, showroom, agent, or branch, has not participated in offline trade shows, and its complaint-handling and service corrective-action procedures have no written records, limiting evidence of formal service execution controls.
R&D capabilityThe supplier reports R&D capability, new products within the past year, ODM services, and integration of R&D with production and after-sales service. It does not have an available SDK, but the available evidence still explicitly supports product-development capability.
Production capacityThe supplier is described as integrating production with R&D, sales, and after-sales service, and it lists a broad product range including tools, meters, and testing equipment. Quality assurance and raw-material traceability are reported, but the slices do not provide production capacity, factory scale, or output data.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM service, providing direct evidence of broad customization capability.

Product Q&A

Q:What transformer combinations can this tester measure?
A:
It measures Y/y, Y/d, D/y, D/d, ZN/y, ZN/d combinations, including unknown group transformers.
Q:Does the device support automatic tap changer measurement?
A:
Yes, it automatically tracks on-load tap positions without needing to re-input parameters.
Q:What are the technical specifications for accuracy and range?
A:
Range is 0.8-10000. Accuracy is 0.1% (0.8-1000), 0.2% (1000-2000), and 0.5% (2000-10000).
Q:How is data stored and managed on this instrument?
A:
It features built-in power-down memory and a micro-printer, plus RS-232 interface for computer connection.
Q:What protection functions are included?
A:
It has overload and over-voltage protection, automatically reducing output voltage for large excitation currents.

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