LQHV-525 Intelligent Transmission Line Parameter Test System

Revolutionary Grid Measurement Technology

This patent-protected (201020687669.X) analyzer integrates frequency conversion power supply, digital filtering, and 40A induction voltage resistance into a single portable unit - replacing traditional truckloads of test equipment.

Product Parameters

Technical parameters

Patented Core Technologies

1. Induction Voltage Resistance

Unique circuit design withstands:

• 40A induced current

• 10kV electromagnetic interference

• ±30% grid fluctuations

2. Smart Frequency Conversion

• 45Hz/55Hz dual-mode operation

• Digital notch filtering (60dB rejection)

• Auto-adaptive to line coupling effects

Field Operation Advantages

One-Touch Testing

Single wiring connection measures:

• Positive sequence impedance

• Zero sequence capacitance

• Mutual impedance

Ultra-Portable Design

Replaces traditional systems requiring:

• Step-up transformers

• Separate power analyzer

• Filter banks

Data Management System

• 10,000+ test records with timestamps

• USB export for PowerBI/Excel analysis

• Auto-report generation (PDF/Word)

Safety Protections

Automatic Grounding Check

Prevents operation if:

• Ground resistance >2Ω

• Induced voltage >30V detected

Hardware Safeguards

• Overvoltage category IV (IEC 61010)

• Double-insulated case (IP52)

Typical Applications

1. Double-circuit line parameter testing

2. Tower coupling impedance measurement

3. Grid expansion project verification