Technical Guide
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The Usage Method and Precautions of the Battery Charge and Discharge Tester
The usage method of the battery charge and discharge tester: Preparation before testing: Connect the battery to the battery charge and discharge tester correctly and set the test parameters. Charging test: Charge the battery through the charging function, and test parameters such as charging ti...Read more -
Transformer Ratio and Polarity Tester: Test Wiring and Usage Method
Transformer Ratio Polarity Tester Wiring Instructions Voltage Transformer Test: The “output” terminal of the instrument is connected to the A terminal on the high-voltage side of the voltage transformer. 2) The “output” terminal of the instrument is connected to the X t...Read more -
The on-site measurement operation method of the digital dual-clamp phase voltmeter
Operation and Use of Digital Dual-Clamp Phase Volt-Ampere Meter Press the ON-OFF button and rotate the function range switch to correctly select the test parameters and range. Measure AC voltage Set the function range switch to the 500V range corresponding to parameter U1, and input the measur...Read more -
Operation Method of Transformer Core Grounding Current Tester Interface
Press the POWER button to turn on the device. The LCD will display the function menu page. If the LCD keeps flickering black after startup, it might be due to insufficient battery voltage. Please replace the battery and then press the POWER button to shut down the device. After 30 minutes of star...Read more -
On-site Cable Fault Testing Instructions for Power Cable Fault Tester
Digital ground resistance testers are indispensable tools in electrical safety inspection, lightning protection grounding projects, and other fields. The following is a summary from three aspects: classification, application, and key points for selection. I. Classification According to the measur...Read more -
Classification and Application of Power Engineering Testing Equipment
The instruments and equipment used in power engineering testing are diverse in types. According to their functions and application scenarios, they can be classified into five major categories, each of which includes typical instruments and core application scenarios. 1. Insulation and Electrical ...Read more -
Application and Selection of Circuit Breaker Loop Resistance Tester
I. Product Classification (1) Classification by Technical Principle DC Voltage Drop Method (Four-Wire Method / Kelvin Method) Tester Principle: It uses the four-terminal measurement method, applying a stable DC current (usually ≥100A) to the circuit under test and calculating the resistance value...Read more -
The test principle and on-site test method of SF6 micro-water tester
Classification of measurement methods for SF6 The measurement methods for the moisture content of SF6 gas are classified into three types based on different principles: electrolysis method, dew point method and capacitance-resistance method. 1) Electrolysis method. This method uses the Coulomb ...Read more -
The Significance and Detection Strategies of Partial Discharge in Switchgear Cabinets
The significance of detecting partial discharge Conventional non-withstand voltage and withstand voltage tests are difficult to detect insulation defects such as partial discharge. Partial discharge will lead to a vicious cycle of insulation deterioration and defects in power equipment, and in ...Read more -
Application and Selection of Transformer Comprehensive Tester
I. Core Application Scenarios The application of the transformer comprehensive tester runs throughout the entire lifecycle of the transformer, and the main scenarios are as follows: Production verification: The transformer manufacturer uses it for factory inspection to ensure product quality. Acc...Read more -
Transformer DC Resistance Testing Methods and Testing Instruments
The detection of the DC resistance of transformers is a core item in the handover, major overhaul, and preventive tests of transformers. It is mainly used to check the welding quality of windings, the contact condition of the tap changers, and whether there are any short circuits between windings...Read more -
Measurement methods and standard requirements for the circuit resistance of high-voltage switches
Measurement of loop resistance Main loop In order to compare the switchgear and control equipment that have undergone the temperature rise test (type test) with all the same model switchgear and control equipment that have undergone factory tests, the measurement of the main circuit resistance s...Read more