Technical
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Insulation oil dielectric strength test procedure and precautions
Test equipment Insulating oil breakdown voltage tester Work procedure Sample container The volume of the sample should be approximately three times that of the sample volume. It is better to use a brown bottle for sampling. Transparent bottles should be stored in the dark before the test. Plast...Read more -
Application and Selection of Transformer Capacity Characteristic Tester
The transformer capacity characteristic tester is a professional device used in the power system to measure key parameters such as transformer capacity, no-load loss, and load loss. It plays a significant role in electricity inspection, equipment handover tests, and operation and maintenance. I. ...Read more -
Precautions and Maintenance Methods for Closed Cup Flash Point Testing
Precautions for Using the Closed Cup Flash Point Tester When using this machine, in order to reduce the risks of fire, electric shock or personal injury, you should always follow the basic safety precautions. Read and understand all the instructions. Operate according to the warnings and instru...Read more -
Precautions for Testing Closed-Type High-Voltage Switchgear
When conducting tests on metal enclosed switchgear, the following points should be noted: a. The busbars in the cabinet or in other compartments, due to the poor quality of the copper material (some manufacturers use aluminum as the conductor), have a high content of impurities, which results in...Read more -
The generation method of the test voltage for communication and the medium-frequency power supply device
Generation of test voltage for communication The method of generating the test voltage for communication The industrial frequency high voltage is usually generated by using high-voltage test transformers; for test samples with large capacitance, a series resonant circuit can be adopted to gen...Read more -
Application Scope and Test Procedures of Transformer Ratio Tester
Transformer ratio tester is an important testing device in power systems, transformer manufacturing plants and maintenance departments. Its core function is to measure the voltage ratio (ratio), ratio error and connection group designation of transformers and instrument transformers. Application ...Read more -
Selection of High-Voltage Circuit Breaker Gap Withstand Voltage Test Equipment
I. Components of the High Voltage Circuit Breaker Breaker Terminal Voltage Test Device (1) High Voltage Boost Unit The power frequency test transformer is mainly divided into three types: oil-immersed, gas-filled (SF6), and dry type. For high voltage levels of 110kV and above, a series excitation...Read more -
The Composition and Selection of Insulating Boots and Gloves Withstand Voltage Test System
Insulation tool (gloves and boots) testers are key equipment for conducting preventive tests on safety tools in the power industry. They are mainly used to test the withstand voltage performance of insulating boots and gloves to ensure that workers are protected from electric shock during operati...Read more -
Classification and Selection Method of Transformer Ratio Tester
I. Classification of Transformer Ratio Testers Based on technical principles, application scenarios, and integration level, the transformer ratio testers available in the market are mainly classified as follows: (1) By technical principle Traditional type (ratio bridge) Characteristics: Based on ...Read more -
Classification and Application of Relay Protection Comprehensive Test Instruments
I. Classification of Relay Protection Testers Based on technical principles, output characteristics, and portability, they are mainly classified as follows: (1) Classification by Technical Development and Output Waveform Intelligent type (microcomputer/digital) Characteristics: Controlled by DSP ...Read more -
Common Abnormal Phenomena and Fault Analysis of GIS Equipment
Common Faults of GIS The advantages of GIS equipment, such as high operational reliability, low maintenance workload, and long maintenance cycle, have been demonstrated. However, some faults have occurred successively, mainly manifested in the following aspects: SF6 gas leakage Such faults usu...Read more -
Application and Selection of Three-channel Transformer DC Resistance Tester
The three-channel transformer DC resistance tester is a core instrument for the detection of power transformers, mutual inductors and other inductive equipment. It is mainly used to measure the DC resistance of transformer windings together with bushings. Application scope The core advantage of t...Read more