Digital PD Detector
LQPDT 4-Channel Partial Discharge Tester - Advanced HV Diagnostic Solution
The LQPDT digital portable partial discharge acquisition system represents the latest generation of PD detection technology, featuring 4 independent channels with fiber-optic isolation for precise measurements in high-interference environments.
Key Technical Specifications
PD Measurement Unit | |
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Channels | 4 independent channels |
Input Impedance | 50Ω |
Sampling Rate | 80MHz |
Detection Sensitivity | <1pC (CA=10nF/CK=1nF) |
Frequency Range | 10kHz-500kHz (5 selectable bands) |
Voltage Measurement Unit | |
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Input Range | 5-230V AC (RMS) |
Synchronization Accuracy | <1° |
Compliance Standards | IEC 60270, GB/T 7354-2018 |
Advanced Features
1. Fiber-Optic Isolation Technology
Ensures measurement accuracy even in severe electromagnetic environments through complete galvanic isolation between channels.
2. Modular Design
Allows flexible configuration for different testing scenarios with:
Coupling impedance unit
Calibration impulse generator
Remote PC control via TCP/IP
3. Multi-Standard Compliance
Meets all requirements for wide-band instruments per:
IEC 60270 - International standard
GB/T 7354-2018 - Chinese national standard
Typical Applications
This system is ideal for quantitative PD testing on:
Power transformers (oil-paper and dry-type)
High-voltage cables and bushings
Rotating machines (generators/motors)
GIS systems and switchgear
Surge arresters and capacitors
Why Choose LQPDT?
High Precision: 14-bit sampling with <±3% linearity error
Field-Proven: Reliable performance in factory acceptance tests (FAT) and on-site commissioning
Future-Ready: Software-upgradable architecture for evolving standards
For HV equipment manufacturers and testing laboratories, the LQPDT 4-channel system provides the most reliable partial discharge detection solution meeting international safety requirements.