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Zero Sequence Current Transformer Logo GFUVE Instruments
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Precision Zero Sequence & Split Core Current Transformers for Industrial Applications

Beijing GFUVE Instrument Transformer Manufacturer Co., Ltd. is a leading Chinese supplier of high-accuracy current transformers, electrical test equipment, and power calibration systems. Trusted globally for reliability and innovation.

High Harmonic Electronic Test Instruments

About GFUVE Instruments

A Trusted Manufacturer of Instrument Transformers & Electrical Test Equipment

Portable Meter Test Equipment

Leading Innovation in Electrical Measurement

Beijing GFUVE Instrument Transformer Manufacturer Co., Ltd. specializes in the design and production of zero sequence current transformers, split core current sensors, instrument transformers, and advanced electrical test equipment. With years of engineering excellence, we deliver precision solutions for power systems, industrial automation, and energy metering.

Our products are widely used in power grids, substations, renewable energy systems, and industrial plants. We serve clients across Asia, the Middle East, Europe, and Latin America with CE-certified, high-reliability instruments.

  • ISO & CE Certified Manufacturing
  • 5+ Years Average Product Lifespan
  • OEM/ODM Services Available
  • Global Shipping & Technical Support

Our Product Range

High-Performance Transformers & Test Instruments for Every Application

GFUVE GF332V2 High Harmonic Electronic Test Instruments

GFUVE GF332V2 High Harmonic Electronic Test Instruments

Three-phase reference meter with high harmonic analysis, ideal for power quality testing and calibration.

  • • High harmonic measurement capability
  • • Three-phase reference standard
  • • CE certified
GF438II Class A Power Quality Analyzer

GF438II Class A Power Quality Analyzer

Green-colored three-phase power analyzer for comprehensive power quality assessment.

  • • Class A compliance (IEC 61000-4-30)
  • • Three-phase voltage & current monitoring
  • • Harmonics, flicker, unbalance analysis
High Voltage Dielectric Loss Tester

High Voltage Anti-Interference Dielectric Loss Tester

Designed for CVT protection and insulation diagnostics in high-voltage systems.

  • • Anti-interference technology
  • • For CVT and bushing testing
  • • Accurate tan δ and capacitance measurement
Zero Sequence Current Transformer

120mm Resin Casting Zero Sequence CT

Split-core protection transformer with high insulation and durability.

  • • 120mm aperture
  • • Resin casting insulation
  • • For ground fault protection
GF302D1 Portable Meter Test Equipment

GF302D1 Portable Meter Test Equipment

Programmable current & voltage calibrator for field and lab use.

  • • High-precision standard source
  • • Single/three-phase meter testing
  • • Compact and lightweight
GFUVE XQ20 200A Clamp On AC Current Probe

GFUVE XQ20 200A Clamp On AC Current Probe

High-accuracy probe for electric meter testing and diagnostics.

  • • 200A range
  • • High linearity and accuracy
  • • Compatible with oscilloscopes and meters
LZZW3-35Q Instrument Multi Ratio Current Transformer Image not available

LZZW3-35Q Multi Ratio Instrument CT

High-accuracy secondary output transformer for medium voltage systems.

  • • Multi-ratio configuration
  • • 35kV rated
  • • High accuracy class
GFUVE FU120 Square D Current Transformer

GFUVE FU120 Square D Low Voltage CT

Bus bar type transformer with 5-year working life for low-voltage applications.

  • • Square D compatible
  • • 5+ years operational life
  • • Bus bar mounting
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Why Choose GFUVE?

Engineered for Precision, Reliability, and Global Compliance

CE Certified

All products meet international safety and performance standards.

OEM/ODM Support

Custom designs and private labeling for bulk orders.

Global Reach

Shipped to over 50 countries with multilingual support.

Technical Support

Dedicated team for installation, calibration, and troubleshooting.

15+
Years in Industry
50+
Countries Served
10K+
Units Shipped Annually
99.2%
Customer Satisfaction

Frequently Asked Questions

Get answers to common inquiries about our products and services

What is a Zero Sequence Current Transformer?

A Zero Sequence Current Transformer (ZSCT) detects ground fault currents in three-phase systems by measuring the vector sum of the three phase currents. It is essential for earth leakage protection and insulation monitoring.

Can you customize transformers for specific voltage ratings?

Yes, GFUVE offers OEM/ODM services. We can customize current transformers, split-core sensors, and test equipment based on your voltage, current, accuracy, and environmental requirements.

Do your products comply with international standards?

Yes, our products are CE certified and designed to meet IEC, IEEE, and other international standards for electrical safety, accuracy, and performance.

What is the delivery time for bulk orders?

Standard delivery time is 15–30 days depending on order size and customization. We provide tracking and logistics support for all shipments.

Get in Touch

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

Beijing GFUVE Instrument Transformer Manufacturer Co., Ltd.

Email: [email protected]

Phone: +86 10 8578 2698

WhatsApp: +86 189 0123 2181

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