GJW-50EVoltage Breakdown Tester

GJW-**D Series computer controlled voltage breakdown testers

Product introduction

Ⅰ．Manufacturing and inspection standards of products 

1、GB/T1408.1-2006《Electrical strength of insulating materials -Test methods - Part 1:Tests at power frequencies》

2、GB/T1408.2-2016《Insulating materials -Test methods for electric strength -Part 2:Additional requirements for tests using direct voltage》

3、JJG 795-2004 《Withstanding Voltage Testers》

Ⅱ．Applicable test method standards

1、GB/T1695-2005《 Rubber, vulcanized -  Determination of electrical breakdown strength and voltage resistant at commercial power frequency》

2、GB/T3333-1999《Cable paper—Determination of electrical strength at power frequence》

3、GB/T12913-2008《Capacitor tissue paper》

4、ASTM D149《Test method for dielectric breakdown voltage and dielectric strength of solid electrical insulating materials at commercial power frequencies》

Ⅲ.  Scope of application

   It is mainly applicable to the test of breakdown strength and withstand voltage time of solid insulating materials such as wire sleeve, resin and adhesive, impregnated fiber products, mica and its products, plastics, film composite products, ceramics and glass under power frequency voltage or DC voltage; The instrument is controlled by computer, which can quickly and accurately collect and process various data in the test process, and can access, display and print.

Ⅳ．Main technical indicators

Ⅴ. Structural principle and characteristics

The equipment is mainly composed of：Boosting system(High voltage transformer)、measurement system、A/D converter、discharge system、electrode、oil tank、electrode positioning rack、computer data processing system、software, etc.

                                        ElectrodeΦ25×Φ25               ElectrodeΦ25×Φ75

                                                                                                                   Test stand ＆ Oil tank

Features: Independent control system,modular structure for easy after-sales maintenance,beautiful and elegant,no noise during the entire testing process, automatic electrode centering and positioning,easy operation,high safety factor,high accuracy.

Ⅵ. Computer system and software package

The testing software is the latest developed by our company,with powerful functions,simple operation and intuitive display.

The instrument adopts computer control and completes the power frequency voltage breakdown and power frequency withstand voltage test of insulating medium through human-computer conversion. This instrument is the first of its kind and the patented product of our company, patent number: ZL 2017 2 1731210.3

1、During the test, the test curve can be drawn dynamically. The test curve can be superimposed and compared with a variety of colors and locally enlarged. Any section of the curve can be analyzed by regional amplification;

2、The test data can be edited and modified, which is flexible and applicable;

3、Test conditions and test results data can be stored automatically;

4、The test report format is flexible and adaptable to the different needs of different users;

5、The validity of curve data in a group of tests can be manually selected;

6、Test result data can be imported into Excel and Word for editing;

7、Software equipment personnel management function,test personnel can set their own test items and test parameters, after setting their own test content,others cannot enter the program.

8、The overcurrent protection device has sufficient sensitivity to ensure that the power supply is cut off within 0.1s when sample breaks down;

9、Durability of instrument operation: the instrument can be operated continuously without regular shutdown to protect the instrument;

                                                                                                                   Test parameter setting interface

                                                                                                                                  Test processing interface

                                                                                                                          Print preview interface 

Ⅶ. Safety instructions for high voltage breakdown equipment

1、Separate protective ground wire should be installed for the equipment. The protective grounding wire is mainly used to reduce the strong electromagnetic interference to the surrounding when the sample breaks down；It can also prevent the computer from getting out of control.

2、DC test discharge alarm function：After the equipment has completed the DC test, the equipment will automatically alarm when the test door is opened, and the alarm will automatically cancel after the discharge device is used to discharge.（Note: It is dangerous not to discharge after DC test, the electrode cannot be taken directly. The alarm device will remind the operator to discharge so as not to cause personal injury).

3、The test discharge device, integrated with the host, improve the function of previously equipped with a separate discharge pole.

4、The circuit of the test equipment is equipped with multiple protection measures, mainly: overcurrent protection, voltage loss protection, leakage protection, short circuit protection, DC test discharge alarm and etc.

5、Four-level high voltage safety power-off control

①Main power switch

②Leakage protection switch

③Regulator reset switch

④Test chamber safety door switch

Ⅸ.List of main configuration and key components