LQPDT2024 Partial Discharge Tester Technical Specifications

The LQPDT2024 represents the cutting edge in portable partial discharge detection, combining 16MHz bandwidth with fiber-optic isolation for reliable measurements in high-interference substation environments.

1. Master Acquisition Unit Specifications

1.1 Interfaces & Connectivity

• Power Input: 6-12V DC (＜6W) with locking quick plug

• Dual Communication:

• Gigabit Ethernet (RJ45)

• SFP optical fiber interface

• Signal Ports:

• Voltage input (30Hz-500Hz)

• PD input (5kHz-16MHz)

• Optional square wave output

1.2 PD Measurement Performance

1.3 Voltage Measurement

• 24-bit ADC @ 20kHz sampling

• 1MΩ input impedance

• 50V RMS maximum input

2. Power System Configuration

2.1 Dual Power Options

Battery Operation:

• 7.4V/15Ah Li-ion pack (8hr continuous use)

• 8.4V/5A fast charging

Direct Power: 8.4V/5A adapter with overvoltage protection

Storage Tip: Maintain full charge when idle, recharge every 3 months

3. Advanced Features

3.1 Test Impedance Unit

• 17kHz-6MHz bandpass (±10%)

• 0.5A rated current capacity

• Overvoltage protection (＞50V RMS triggers capacitance adjustment)

3.2 Environmental Durability

4. Diagnostic Applications

This system is particularly effective for:

• Transformer PD Mapping: 4-channel synchronous measurement for phase-resolved patterns

• Cable Termination Testing: 16MHz bandwidth captures high-frequency discharge signals

• GIS Partial Discharge: Fiber-optic isolation prevents ground loop interference

Compliance & Standards

The LQPDT2024 meets critical requirements of:

• IEC 60270: High-voltage test techniques - Partial discharge measurements

• GB/T 7354-2018: Chinese national standard for PD detection

• IEEE 400.3: Guide for Partial Discharge Testing of Shielded Power Cable Systems