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Advanced Electrical Testing Equipment

Precision, Safety, and Reliability in High Voltage Testing – Trusted by 5000+ Customers Across 70+ Countries Since 2006

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About Hengfeng

Hengfeng Testing Equipment

Jinan Hengfeng Electric Power Equipment Co., Ltd.

A leading Chinese manufacturer of high-voltage electrical testing instruments since 2006, Hengfeng is renowned for innovation, quality, and reliability. We specialize in R&D, manufacturing, and global marketing of advanced testing solutions for power systems.

With exclusive agents and distributors in nearly 40 countries, our products serve utilities, industrial plants, and infrastructure projects worldwide. Our commitment to “Safe, accurate, durable” standards ensures trust in every measurement.

2006
Founded
5000+
Customers
70+
Countries

Our Products

Comprehensive range of high-voltage testing instruments designed for preventive maintenance, fault diagnosis, and calibration in power generation, transmission, and industrial systems.

CTD-8207 Tan Delta Tester

CTD-8207 12kV Transformer Capacitance & Tan Delta Tester

High-precision dielectric loss and capacitance measurement for transformers and bushings under strong interference conditions.

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VLF Hipot Test System

VLF HF-30TD VLF Hipot Test System with Tan Delta

Very Low Frequency system for cable and generator insulation testing with integrated Tan Delta diagnostics.

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Ground Resistance Tester

Ground Resistance Tester with Color Touch Screen

Multifunctional grounding system tester with intuitive interface for accurate earth resistance and soil resistivity measurement.

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DC Hipot Tester

Intelligent DC Hipot Tester

Advanced DC high-potential tester with automatic discharge, data storage, and safety interlocks for insulation breakdown testing.

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Insulation Resistance Tester

Insulation Resistance Tester with Color Touch Screen

High-range insulation tester with touch interface, data logging, and Bluetooth for motor, transformer, and cable testing.

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Surge Arrester Leakage Current Analyzer

Analyzes resistive and capacitive components of leakage current in metal oxide surge arresters for predictive maintenance.

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Tan Delta Tester with Color Screen

Portable dielectric loss analyzer with anti-interference technology for on-site transformer and capacitor testing.

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VLF HIPOT TEST SYSTEM VLF HF-60P

60kV VLF test set for field testing of medium and high voltage power cables with automatic frequency tuning.

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Why Choose Hengfeng?

Safety First

Multiple built-in protection mechanisms ensure operator and equipment safety during high-voltage testing procedures.

High Accuracy

Precision sensors and advanced algorithms deliver reliable, repeatable measurements even in electrically noisy environments.

Durable Design

Robust construction ensures long-term performance in harsh field conditions, minimizing downtime and maintenance costs.

Smart Interface

Color touch screens, intuitive menus, and data export options simplify operation and reporting.

Portable & Integrated

Compact, all-in-one design allows easy transport and setup at remote or confined test sites.

Custom Solutions

Tailored configurations and OEM/ODM services available to meet specific project requirements.

Real-World Applications

Substation Grounding Resistance Testing

Our multifunctional ground testers accurately measure resistance in medium and large substations despite strong electromagnetic interference.

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Transformer Power Factor Testing

Tan Delta testers enable precise dissipation factor measurements during routine maintenance of power transformers.

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Lightning Protection for Rocket Launch Platforms

Used in China’s Long March-8 rocket launch at Wenchang, ensuring reliable grounding for critical aerospace infrastructure.

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Nuclear Power Plant Diagnostics

Successfully deployed in St. Petersburg, Russia for on-site capacitance and dielectric loss testing at a major nuclear facility.

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2006
Founded
5000+
Global Customers
70+
Countries Served

Frequently Asked Questions

What is a Tan Delta Tester used for?

A Tan Delta Tester measures the dissipation factor (tan δ) and capacitance of insulation systems in transformers, cables, and bushings to assess aging and moisture ingress.

Can your testers operate in high-interference environments?

Yes, our instruments are designed with advanced filtering and shielding to ensure accurate readings even in substations and industrial plants with strong electromagnetic noise.

Do you offer calibration services?

Yes, we provide factory calibration and support for all our testing equipment to maintain measurement accuracy and compliance.

Are your products ISO certified?

Yes, our manufacturing processes are ISO 9001:2015 certified, ensuring consistent quality and reliability across all product lines.

How can I request a quote?

Visit the product page on hengfengtest.com and click “Request a Quote,” or contact our international sales team through the official website.

Get in Touch

For product inquiries, technical support, or partnership opportunities, visit our official website to connect with our team.

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