What safety features are included in the design?

The device has an engineering plastic mold machine housing that is shockproof and pressure-resistant to ensure the safety of both on-site operators and equipment.

Can the device print test results directly?

Yes, it includes a built-in printer for instant data printing and can directly issue on-site verification conclusions (qualified or out of tolerance).

What is the warranty period for this product?

We provide a one-year warranty for this current transformer field tester.

Current Transformer Field Tester with Built-in Memory Storage for Factory Testing

Name: Current Transformer Field Tester with Built-in Memory Storage for Factory Testing
Brand: Refine On (Hebei) Electric Power Technology Co., Ltd.
SKU: 2142897962

Hebei, ChinaRefine On (Hebei) Electric Power Technology Co., Ltd.

US$2,910.00-5,910.00

1 Piece

Product profile

Customization

Available

After-sales Service

Provided

Warranty

One-Year

Model NO.

NRH70C

Accuracy Grade

0.05

Load Way

Electronic Load

Display

Digital

Control

Computer Control

Weight

9.9kg

Power Source

Built-in Rechargeable Lithium Battery, Charger out

Output Mode

Simulation/Extrapolation

Output Frequency

45Hz ~ 55Hz

Output Power

20va

Direct Connection Output Voltage

< 24V

Display Mode

LCD Touch Screen

Operation Mode

Touch Screen & Manual Control

Other Functions

PT Testing

Working Time

≥ 12h

Communication Interface

USB, Bluetooth, RS232, RJ45 (Ethernet)

Transport Package

Wooden Box with Foam Inside

Trademark

Refine On

Origin

China

HS Code

9030390000

Production Capacity

100 Set Per Week

Key features

0.05 Class Accuracy: Features standard voltage and current transformers with 0.05 class precision for precise ratio and no-load error measurement.

Wide Measurement Range: Covers 5A/5A to 31500A/5A or 5A/1A to 6300A/1A, supporting 1% to 200% operating range.

Large Data Storage: Built-in large-scale storage device capable of storing up to 5,000 pieces of field test data.

Multi-Interface Connectivity: Supports RS232, USB, Bluetooth, and RJ45 for data upload, download, and firmware updates.

High-Resolution Touchscreen: Equipped with an 8-inch 1024x768 high-resolution color LCD touchscreen for intuitive operation.

Intelligent Error Detection: Automatically detects external wiring conditions, connection errors, and polarity issues with visual alerts.

Long Battery Life: High-capacity lithium battery enables continuous operation for over 12 hours on a full charge.

On-Site Verification: Eliminates need for standard CTs and boosters; simplifies wiring to significantly reduce workload.

Company profile

R&D Capabilities100% Finished Products InspectionODM ServicesProduction Process Visualization

Refine On (Hebei) Electric Power Technology Co., Ltd.

Hebei, China

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: ≤3.60h

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 is the accuracy grade of this current transformer tester?

The instrument achieves 0.05 class accuracy, utilizing standard voltage and current transformers with the same ratio as the tested unit for precise measurement.

Q:What is the maximum measurement range supported?

The measurement range covers 5A/5A to 31500A/5A or 5A/1A to 6300A/1A, with an operating range of 1% to 200%.

Q:How much data can the device store?

The device features a large-scale storage device that can store up to 5,000 pieces of field test data.

Q:What interfaces are available for data transfer?

It supports RS232, USB, Bluetooth, and RJ45 network ports. USB supports mouse operation, Bluetooth enables data upload/download via the State Grid APP, and RJ45 allows firmware updates.

Q:Does the device have a battery backup?

Yes, it features a high-capacity lithium battery with a built-in charging capacity of approximately 12-24 hours, enabling continuous operation for over 12 hours on a full charge.