HD9001 Handheld Ultrasonic Partial Discharge Inspection Instrument - Yangzhou Dali

Published: 2024-07-01 12:39:06

Category: Partial Discharge Tester

Product Description

HD9001 Handheld Ultrasonic Partial Discharge Inspection Instrument

Dali Electric recommends to you:

I. Introduction

    HD9001 Handheld Ultrasonic Partial Discharge Inspection Instrument In recent years, with the development of the national economy, power outages have become increasingly difficult. With the promotion of condition-based maintenance, live testing has become more and more important and has become an important guarantee for the safe operation of the power grid.

    Monitoring partial discharge in power equipment during operation is an important part of condition-based maintenance. When partial discharge occurs in power equipment, physical phenomena such as sound, light, electricity, heat, and magnetism are produced. Among them, sound is ultrasonic, which is a sound wave above 20kHz that cannot be heard by the human ear. It propagates around the sound source in the form of spherical waves. Ultrasonic is a mechanical wave and is not affected by the electromagnetic environment. The method of using received ultrasonic signals to judge the existence and location of partial discharge is easier to detect partial discharge faults earlier than infrared cameras and ultraviolet cameras, because when partial discharge occurs, vibration often produces ultrasound first, and then thermal, optical, magnetic and other physical signals.

    Our company has concentrated scientific research efforts and, under the principle of learning from others' strengths and reducing user purchase costs, has developed the HD9001 Handheld Ultrasonic Partial Discharge Inspection Instrument, filling a domestic gap. It is suitable for promotion in China's electric power, railway, and petrochemical industries and is a good helper for condition-based maintenance.

II. Functions and Features

1. Functions

(1) Non-contact scanning of operating transformers, GIS and other high-voltage primary equipment to detect and locate external

discharge;

(2) Live scanning of open (outdoor) equipment in substations to detect and locate various discharges (corona,

arc, flashover, creepage, wire breakage, arcing, etc.);

(3) Scanning of operating high-voltage switchgear to detect and locate faults such as partial discharge and loose screws;

(4) Detect and locate insulator discharge on towers, creepage of outdoor cable terminations, and partial discharge of underground cables;

(5) In handover and preventive tests of power systems, and partial discharge tests of main transformers and GIS, use this device with a partial discharge detector. If partial discharge occurs, it can distinguish whether it is internal or external discharge. If it is external discharge, the specific discharge point can be located;

(6) In factory tests of large oil-immersed transformers and GIS manufacturers, this device is used with a partial discharge detector during partial discharge tests. If discharge occurs, it cannot be seen on the screen of the partial discharge detector whether it is internal or external discharge. Use the handheld inspection locator to scan. External discharge can be quickly detected and located. If there is no external discharge, it is judged as internal discharge. For factory partial discharge tests of dry-type transformers, using this device with a partial discharge tester can quickly distinguish between internal and external discharge. In addition, scanning live dry-type transformers can accurately and quickly detect and locate both internal and external discharge;

(7) Mechanical faults of large mechanical equipment bearings due to poor lubrication can be detected and located with this device;

(8) Leak detection of high-pressure sealed gas and liquid;

Note: The above information and technical parameters are compiled and released by Yangzhou Dali Electric Co., Ltd.

← Previous
ZCPD-100S Partial Discharge Detector - Yangzhou DARUI Next →
HD9002 High Voltage Switchgear Partial Discharge Tester - Yangzhou Darui

Product Details

HD9001 Handheld Ultrasonic Partial Discharge Inspection Instrument - Yangzhou Dali

HD9001 Handheld Ultrasonic Partial Discharge Inspection Instrument