Technical Guide
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Transformer partial discharge test equipment and test methods
The partial discharge test of transformers is an important and sensitive test item for detecting and evaluating the insulation condition inside the transformer. The core purpose is to identify local insulation weaknesses such as bubbles, sharp corners, and impurities that do not penetrate the ele...Read more -
Standard Procedures and Main Items for Preventive Tests of Transformers
I. Definition of Preventive Tests Preventive tests are inspection, testing or monitoring activities carried out on operating equipment to identify potential hazards and prevent accidents or equipment damage. They form the basis for the safe operation and condition-based maintenance of power equip...Read more -
Selection method for high-voltage insulation resistance tester
The selection of a high-voltage insulation resistance tester is the first crucial step in ensuring the effectiveness of the test and the safety of the operation. During the selection process, the following core factors need to be carefully considered, combined with the test requirements and the c...Read more -
Functions and Test Items of the Transformer Comprehensive Characteristic Test Bench
The transformer comprehensive characteristic test bench is a highly integrated testing system that integrates multiple single testing instruments required for transformer factory tests, commissioning tests, and preventive tests, forming a unified testing platform. It can complete the detection of...Read more -
The main functions and roles of the high-voltage partial discharge shielding chamber
The high-voltage partial discharge shielding chamber is a special experimental environment specifically designed for partial discharge (PD) detection. As a laboratory for achieving “electromagnetic purity”, its core objective is to create ideal conditions for high-precision partial di...Read more -
General selection method for insulating oil chromatographic analyzer
The selection of an insulating oil chromatography analyzer is not merely a matter of purchasing an instrument; the core lies in establishing a reliable and sustainable system for analyzing dissolved gases in oil. The selection process should follow scientific steps and principles, as detailed bel...Read more -
Selection Method for Handheld Three-Channel DC Resistance Tester
Selection is a systematic process of gradually matching the performance of the instrument based on one’s own needs. Please follow the following five steps: Step 1: The primary task – Clearly define the test object and core requirements This is the foundation of the selection process. ...Read more -
Composition and Main Functions of the Test Transformer Operating Box
The test transformer operation box (also known as the control box, control console or voltage regulator) is the core control unit of the high-voltage test system, responsible for safely, smoothly and accurately regulating and outputting the voltage required by the high-voltage test transformer. 1...Read more -
The application scope of the three-frequency induction withstand voltage test device
The core purpose of the withstand voltage test is to evaluate the electrical strength of the main insulation (winding-to-ground and phase-to-phase) and the longitudinal insulation (phase-to-phase, layer-to-layer, and section-to-section) of electromagnetic power equipment such as transformers and ...Read more -
Dry-type transformer partial discharge test equipment and test methods
The core components of the partial discharge testing system include the test power supply, coupling capacitor, detection impedance, partial discharge measuring instrument, calibrator, as well as the shielding and grounding system. The functions and requirements of each part are as follows. I. Sys...Read more -
The composition and selection method of the power frequency withstand voltage test device
I. Composition of the Power Frequency Withstand Voltage Test Device A complete power frequency withstand voltage test device is mainly composed of the following core components and optional parts: Test Transformer As the core unit of the device, its function is to increase the input low voltage t...Read more -
General Selection Method for SF6 Moisture Testers
The SF6 micro moisture tester (also known as SF6 dew point meter or SF6 humidity tester) is a crucial piece of equipment in industries such as power, petrochemical, and manufacturing. The selection process for SF6 micro moisture testers can follow a clear path of identifying core requirements, de...Read more