Product Introduction

The LDJF-701 portable partial discharge tester is widely applicable for partial discharge detection in power systems, including high-voltage switchgear, ring main units, voltage/current transformers, transformers (including dry-type transformers), GIS, overhead lines, and cables. It assesses the insulation condition of electrical equipment by the following indicators to measure the degree of discharge:

Partial discharge intensity detection: Measures the discharge signal within one power frequency cycle and characterizes the intensity of partial discharge based on the MAX value (dB) in the discharge pulse sequence.

Partial discharge frequency detection: Measures the discharge signal within one power frequency cycle, extracts discharge pulses, and characterizes the frequency of partial discharge based on the number of discharge pulses.

Product Alias: Partial Discharge Detector, Partial Discharge Measurer, Partial Discharge Tester, Partial Discharge, PD, Local Discharge Inspection.

Product Features

Configure various sensors for partial discharge detection of almost all high-voltage electrical equipment.

Provide time-domain waveforms, PRPD, PRPS, and various discharge maps to achieve analysis of different discharge types.

Humanized user interface for easy data management across various devices.

◆ Built-in ultrasonic sensor and transient earth voltage (hereinafter referred to as TEV) sensor, capable of connecting to dedicated sensors for transformers, GIS, overhead lines, cables, etc.

◆ Employing non-intrusive detection methods, no power outage is required during the testing process, and no additional high-voltage power supply is needed, making it more convenient than traditional impulse partial discharge detectors.

◆ Test bandwidth ranges from 30kHz to 2.0GHz, applicable to various frequency band detection principles.