Precision Transformer Testing & Power Diagnostic Systems
A leading manufacturer of comprehensive testing equipment for transformers, HV systems, and cables. Providing high-performance analyzers for your one-stop fault diagnosis.
Comprehensive Transformer Test Equipment
DC Resistance Tester
Accelerates transformer maintenance with specialized three-phase simultaneous testing that significantly cuts downtime. Its powerful 20A output ensures wide-range measurement accuracy for large transformers, while the integrated auto-degaussing function eliminates residual magnetism risks to guarantee personnel safety and data reliability.
3 Phase Turn Ratio Tester
This tester simplifies complex field scenarios with a “blind test” function that automatically measures ratio and group without any nameplate data. With a wide ratio range up to 10000, it handles various transformer types including Z-connections. Offering rapid performance, such as completing single-phase tests in under 5 seconds, it ensures reliable ratio and group identification even for unknown conventional equipment.
CT PT Analyzer
This comprehensive analyzer handles all CT/PT classes (P, TP, M, PX) using low-frequency technology to test knee point voltages up to 30kV while weighing under 9kg. It automatically measures resistance, excitation, ratio, and polarity in a single sequence, maximizing testing efficiency for high-voltage protection systems.
Capacitance & Tan Delta Tester
Engineered for high-interference substation environments, this tester utilizes variable frequency technology (45/55Hz) to ensure accurate dielectric loss readings by filtering out noise. With an integrated 10kV power supply and CVT self-excitation capability, it tests transformers and CVTs without external accessories or complex cabling.
Transformer Winding Deformation Tester - SFRA
Compliant with IEC 60076-18, this analyzer uses advanced Frequency Response Analysis (FRA) to detect hidden internal winding displacements or distortions without dismantling the transformer. It provides high-precision sweeping from 10Hz to 2MHz, offering a definitive diagnosis of potential mechanical faults to prevent catastrophic failures.
Primary Current Injection Tester
Delivering a stable 5000A continuous output, this primary injection tester is engineered to be 30-70% lighter than traditional boosters for superior portability. It features a built-in millisecond timer for synchronous action recording, allowing you to verify relay and breaker performance instantly without extra equipment.
Designed for Precision & Reliability in High-Voltage Testing
Reliable Diagnostics for Power Assets
Don’t compromise accuracy for portability. Our rugged testers for transformers, CT/PTs, and HV cables deliver stable data in harsh substations, helping you detect faults early and extend asset life.
Precision algorithms for high-accuracy data.
Stable operation under high voltage interference.
Fully meets international testing standards.
Engineered for the Reality of Field Testing
Substations are noisy, dirty, and unpredictable. Our equipment ensures consistent operation through interference via rugged, industrial-grade hardware—delivering stable testing and seamless data management.
High-contrast, sunlight-readable touchscreen.
Built-in printer for immediate data verification.
Rugged, lightweight case for easy portability.
Protect Your Team & Secure Investment
HB ZHIWEI testers include automatic discharge and grounding checks to prevent accidents before they happen. Combined with 24/7 remote guidance, we ensure every test is safe and successful.
Intelligent over-voltage/current monitoring with auto-shutdown.
Automatic discharge and grounding for safe disconnection.
24/7 remote technical support and free software upgrades.
Defy Electrical Noise. Trust Your Data
Our advanced shielding technology ensures stable and accurate readings even in 500kV+ high-voltage environments, protecting your data integrity.
Advanced EMC (Electromagnetic Compatibility) design.
Shock-resistant cases for safe transport.
Stable performance in extreme temperatures.
Our Equipment in Action
From manufacturing to field testing, witness the quality.
Why Partner with HB ZHIWEI?
Source directly from a trusted manufacturer with decades of expertise.
- Direct Manufacturer Advantage: In-house R&D and manufacturing ensure competitive pricing and original tech support.
- Fast Global Fulfillment: Large inventory and secure flight-case packaging allow expedited shipping to 50+ countries.
- 100% Quality Assured: Every unit undergoes rigorous calibration and a strict QC process before leaving our warehouse.
What Our Customers Say
“The DC Resistance Tester is incredibly fast. Saved our team hours during the substation maintenance shutdown. Great build quality.”
Purchasing ManagerElectrical Services Co. (Mainland Europe)
“We use the HB ZHIWEI Turn Ratio Tester for all our transformer projects. Precise results and the interface is very intuitive.”
Senior EngineerPower Utility (Southeast Asia)
“Excellent customer support. They guided us through the SFRA analysis via video call. Highly recommended supplier.”
Maintenance DirectorGrid Solutions (South America)
Common Questions and Support
Find answers to common questions about shipping, warranty, and technical specs here.
Need Direct Assistance?
Don’t hesitate to reach out. We typically reply to all technical inquiries within 2 hours.
We offer a standard 12-month warranty for all instruments, with options to extend to 24 months. Lifetime technical support is included.
Yes, we support 110V/220V inputs and provide power plugs suitable for your local standards (US, EU, UK, AU, etc.).
Absolutely. Every device undergoes strict calibration before shipment and comes with a factory calibration certificate.
For standard models, we maintain stock for immediate dispatch within 5-10 business days. We offer air express (DHL/FedEx) for urgent needs and sea freight for bulk orders to optimize your costs.
We provide lifetime technical support. For general issues, our engineers offer remote diagnosis and video guidance. If replacement parts are needed, we ship them via express courier for easy on-site replacement. For major faults, we have a streamlined return-to-factory repair process.
Get A Solution & Quote
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Connect with Our Experts
Have questions about technical specifications, pricing, or shipping? Reach out to us directly for immediate assistance.
