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Technical Analysis and Field Application Evaluation of Partial Discharge Inspection Instruments

2025-12-25
Latest company news about Technical Analysis and Field Application Evaluation of Partial Discharge Inspection Instruments
The partial discharge inspection instrument is a multi-functional handheld partial discharge detector for medium and high-voltage power equipment. It is used for comprehensive online monitoring of equipment insulation status and for early detection of potential defects. Partial discharge is an early indicator of insulation aging and failure in power equipment; if not detected in time, it can easily lead to equipment breakdown and major power outages.
Core Application
Applicable Devices:

GIS,switchgear,transformers,power cables,reactors, etc.

Applicable Scenarios:

Substation inspection

condition-based maintenance

acceptance testing

fault diagnosis

No power outage required, supporting rapid inspection and long-term monitoring.

Core Technologies and Advantages
Multi-dimensional Integrated Detection:

Integrates four methods:

TEV (electrical)

ultrasonic (acoustic)

UHF (electromagnetic)

HFCT (pulse current)

Advantages:

Multiple methods provide mutual verification, significantly improving detection accuracy and anti-interference capabilities, solving the problem of misjudgment with single methods.

Intelligent Analysis and Diagnosis:

Supports 2D/3D spectrum analysis such as PRPD and PRPS, clearly distinguishing discharge types (e.g., internal discharge, surface discharge) from external interference.

High-Performance Hardware:

Four-channel synchronous detection, 12-bit high sampling accuracy.

High Sensitivity: UHF band reaches 300MHz-1.5GHz, sensitivity better than -60dBm; TEV bandwidth 3MHz-100MHz.

Portable and Easy to Use: 5-inch Android touchscreen, weighing only 0.85kg, battery life approximately 7 hours.

Intelligent Features:

Built-in camera, RFID, WiFi, and Bluetooth for easy inspection recording, data management, and automatic report generation, improving operation and maintenance efficiency.

Problems Solved

Traditional manual inspection relies on experience, leading to delayed detection of potential problems.

Single detection methods are prone to misjudgment.

Achieves an intelligent upgrade from "periodic maintenance" to "condition-based maintenance".

Summary And Evaluation

The ZXPD-300T4 is a professional inspection instrument that integrates high sensitivity, multi-technology fusion, intelligent analysis, and portability, effectively improving the safety, reliability, and intelligence level of power equipment operation and maintenance.

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