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Revolutionizing On-Site CT Testing: The ZXCT-806 Wireless Solution
Introduction: The Challenges of Traditional CT Verification
Verifying Current Transformer (CT) parameters – transformation ratio, polarity, secondary loop integrity – is a critical yet often cumbersome task in substations and switchgear maintenance. Traditional methods typically involve cumbersome wiring between high-voltage (HV) and low-voltage (LV) sides, requiring circuits to be de-energized or complex safety procedures. This process is time-consuming, potentially hazardous, and prone to calculation errors. For technicians working on ubiquitous 10kV-35kV systems, a safer, faster, and more comprehensive solution is essential.
Enter the ZXCT-806 Wireless CT Transformation Ratio Tester
The ZXCT-806 represents a significant leap forward in on-site CT testing technology. Designed specifically for live-line testing on systems up to 35kV, particularly targeting 10kV switchgear, it integrates multiple verification functions into a single, wireless platform, eliminating many of the pain points of legacy approaches.
Core Capabilities: Beyond Just Ratio
The ZXCT-806 isn't just a ratio tester; it's a comprehensive CT and secondary loop analysis tool:
Transformation Ratio Measurement: Accurately measures CT ratio under live conditions.
Polarity Verification: Confirms correct CT polarity.
Secondary Loop Impedance: Measures the impedance of the entire secondary current path.
Secondary Wiring Correctness: Helps identify wiring errors in the CT secondary circuit.
Harmonic Analysis (3rd - 51st): Tests for harmonic distortion in the secondary current.
Real-Time Waveform Display: Visualizes the secondary current waveform instantly.
Key Features Driving Efficiency and Safety
Wireless HV Transmission: The defining feature. The high-voltage clamp transmits measured current data wirelessly to the host unit up to 500 meters away, eliminating the need for dangerous HV leads running through switchyards or cubicles. This is a game-changer for operational safety.
Live-Line Testing: Enables testing on energized 35kV and below systems without interruption, maximizing system uptime.
High Accuracy & Processing Power: Utilizes a 32-bit high-speed DSP and dual 16-bit A/D converters for precise measurements (Accuracy: 0.5% for HV current, LV current, and Ratio).
Clear Visualization: Features a 3.5-inch true color LCD display, clearly showing results and waveforms in various lighting conditions.
Extended Battery Operation: Both the host unit and HV clamp are powered by rechargeable batteries, supporting > 8 hours of continuous operation on a single charge.
Robust Design: Withstands high voltages (70kV/min withstand rating), ensuring reliability in demanding substation environments.
Technical Specifications at a Glance
Wireless Range: 500m (Barrier Free)
Current Ranges: HV Clamp: 600A; LV Clamp: 5A
Ratio Range: 1 - 999
Voltage Input: 0-200V (Auxiliary)
Accuracy: 0.5% (HV Current, LV Current, Ratio)
Harmonics: 3rd - 51st
Withstand Voltage: 70,000V / min
Power Consumption: < 3VA
Contrasting with Traditional Methods
Feature | Traditional Methods | ZXCT-806 Wireless Tester |
HV Connection | Physical wires required | Wireless Transmission (500m) |
Testing State | Often requires de-energization | Live-Line Testing (up to 35kV) |
Safety | Higher risk (HV wiring hazards) | Significantly Safer (No HV wires) |
Speed | Slower (setup, wiring, calculations) | Faster Setup & Execution |
Functionality | Often requires multiple instruments | All-in-One (Ratio, Polarity, Impedance, Wiring Check, Harmonics, Waveform) |
Mobility | Restricted by test leads | High Mobility (Wireless operation) |
Data Display | Basic numerical readouts | Color Display, Real-Time Waveforms |
Conclusion: A Technician's Essential Tool
The ZXCT-806 Wireless CT Transformation Ratio Tester fundamentally transforms the workflow for testing protection and metering CTs in medium-voltage systems. By replacing hazardous HV wiring with robust wireless technology and integrating multiple critical test functions into a single, battery-operated device, it delivers unparalleled safety, efficiency, and diagnostic power. The ability to perform comprehensive testing – including harmonic analysis and real-time waveform viewing – live on energized circuits up to 35kV makes the ZXCT-806 an indispensable tool for technicians responsible for the reliability and accuracy of electrical measurement and protection systems. Its combination of advanced DSP processing, high accuracy, clear visualization, and extended battery life sets a new standard for on-site CT verification.
GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/
