+86-17396104357

+86-27-65526007

NEWSnews

Present Position:Home > News > Technical Article

Advancing Transmission Line Parameter Testing: Introducing the ZXXL Power Freque

Time:2025-08-04 Number:1

The Challenge: Traditional Parameter Measurement
Accurately measuring power frequency parameters (resistance, reactance, conductance, susceptance) of transmission lines and transformers under actual operating conditions has long been a critical yet cumbersome task for power system technicians. Traditional methods often involve:

1.Multiple Instruments: Requiring separate high-precision voltmeters, ammeters, power analyzers (for loss measurement), and phase measurement units.

2.Complex Setups: Extensive wiring and careful synchronization between devices.

3.Manual Calculations: Post-processing data to derive impedance, admittance, and loss figures, introducing potential for error.

4.Bulk & Immobility: Equipment suites were often heavy and ill-suited for efficient field deployment, increasing labor intensity and project time.

image.png

The Solution: Integrated Field Testing with the ZXXL Tester
The ZXXL Transmission Line Power Frequency Parameters Tester represents a significant technological leap, specifically engineered to overcome these limitations and streamline field testing.

Core Technological Advantages:

1.Multi-Channel Synchronization: At its heart lies advanced multi-A/D synchronous sampling combined with sophisticated Digital Signal Processing (DSP). This core technology solves the critical challenge of simultaneously and accurately measuring multiple voltage and current channels in real-time, enabling direct calculation of complex parameters like impedance and power without manual intervention.

2.All-in-One Functionality: It integrates the functions necessary for both transmission line power frequency parameter characterization and transformer loss measurement into a single, compact instrument (380×270×190mm, 7kg).

3.User-Centric Design:

Large LCD Display & Intuitive Menu: Features a clear interface with Chinese menu prompts (localized for primary users) for straightforward operation.

Integrated Thermal Printer & Storage: Provides immediate hardcopy results of measurements and calculated parameters on-site. Internal storage allows for data retention and later transfer/analysis.

Portability Optimized: Designed explicitly for field use. Its relatively light weight (7kg) and manageable size drastically reduce the physical burden compared to traditional setups, enhancing technician mobility and productivity.

Key Technical Specifications:

Parameter

Specification

Significance for Technicians

Voltage Range

AC 25V ~ 500V

Covers typical LV & MV system test points effectively.

Current Range

AC 0.025A ~ 50A

Suitable for a wide range of line and transformer loading.

Accuracy

Voltage, Current, Impedance: 0.2%

High precision for reliable parameter calculation.


Power: 0.5%

Accurate power loss measurement.

Operating Temp

-10°C ~ 50°C

Robust performance in diverse field environments.

Operating Humid

0% ~ 80% RH

Suitable for most non-condensing outdoor conditions.

Power Supply

AC 220V ±10%, 50Hz ±1Hz

Standard field power compatibility.

Contrasting the Workflow: Old vs. ZXXL

1.Traditional Setup:

Carry multiple heavy instruments.

Complex wiring and connection checks.

Synchronize instruments (if possible).

Record multiple readings manually.

Perform complex calculations offline.

Risk of desynchronization errors and calculation mistakes.

Generate reports manually.

2.ZXXL Tester Workflow:

Carry one compact instrument.

Connect voltage and current probes.

Navigate simple menu to start test.

Instrument synchronously measures all channels and calculates parameters in real-time.

View results immediately on large LCD.

Print results on-site with integrated printer.

Store data internally for later use.

Impact for Technical Personnel:
The ZXXL Tester directly addresses the primary pain points of field technicians:

1.Dramatically Reduced Labor Intensity: Eliminates the need to transport, set up, and interconnect multiple heavy devices.

2.Enhanced Efficiency: Integrated synchronous measurement and calculation deliver results immediately, slashing testing and reporting time.

3.Improved Accuracy & Reliability: Advanced DSP and inherent synchronization minimize measurement errors and eliminate manual calculation mistakes.

4.True Field Portability: The compact, single-unit design makes deploying sophisticated parameter testing anywhere feasible and practical.

5.Simplified Operation: The intuitive interface and guided menus reduce training time and potential for operator error.

Conclusion:
     The ZXXL Transmission Line Power Frequency Parameters Tester is more than just an instrument; it represents a paradigm shift for field technicians performing critical line and transformer parameter testing. By integrating advanced synchronous multi-channel measurement, DSP, and essential peripherals into a rugged, portable package, it effectively replaces cumbersome traditional setups. The result is a significant reduction in labor intensity, a major boost in field efficiency and data reliability, and a streamlined workflow – empowering technicians to perform complex power system diagnostics faster and more accurately than ever before. Its combination of high accuracy (0.2% for V/I/Z), wide measurement range, and field-ready design makes it an indispensable tool for modern power system testing and maintenance teams.

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/