Technical
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Technical Specifications and Selection of Ultrasonic Partial Discharge Detector
Ultrasonic partial discharge detection technology is a mature non-disruptive diagnostic method for power equipment. Its physical basis originates from the acoustic effect accompanying the partial discharge phenomenon. When insulation defects occur inside high-voltage electrical equipment and lead...Read more -
The different applications of the transformer comprehensive tester and the test bench
As the core equipment of the power system, the electrical performance of transformers is tested and evaluated throughout the entire life cycle of manufacturing, installation, operation, and maintenance. With the continuous improvement of industry requirements for testing efficiency and accuracy, ...Read more -
The differences and applications between pressure resistance testers and insulation testers
The insulation performance of high-voltage power equipment directly affects the reliable operation of the power grid and the personal safety of operators. To comprehensively evaluate the health condition of the insulation medium, the power industry generally adopts insulation resistance testing a...Read more -
Analysis of Typical Application Scenarios of Switching Characteristics Testing Equipment
I. Introduction: Why are mechanical characteristic tests so important? Every time a fault is isolated or a load is switched in a power system, it relies on whether the high-voltage circuit breaker can act precisely and reliably within milliseconds. Statistics show that a considerable proportion o...Read more -
Difference between DC resistance testing and loop resistance testing
In the commissioning tests, preventive tests, and daily maintenance of power systems, resistance measurement is a fundamental and crucial task. DC resistance testers and loop resistance testers are two common resistance measurement devices. Although both are based on the principle of DC voltage d...Read more -
Insulating Oil Dielectric Loss Factor Tester Selection Standard Procedure
Insulating oil serves as the core dielectric medium in oil-filled equipment such as transformers, reactors, and instrument transformers, fulfilling dual roles of insulation and heat dissipation. Once the oil deteriorates, both the electrical strength and cooling efficiency of the equipment declin...Read more -
Classification, Application and Test Standard Procedures of Dielectric Loss Test Instruments
I. Core Functions and Detection Significance of the Equipment The dielectric loss tester is the core instrument for the preventive test of insulation of electrical equipment. It is mainly used for accurately measuring the dielectric loss factor (tanδ) and capacitance (Cx) of insulating materials....Read more -
Selection method and application basis for high current contact resistance tester
Contact resistance is the core parameter for evaluating the quality of the conductive circuit connections in electrical equipment such as high-voltage switches, circuit breakers, and disconnectors. An abnormal increase in contact resistance indicates insufficient contact pressure, surface oxidati...Read more -
Parameter configuration and selection of lightning impact test equipment
In the verification of the insulation performance of power equipment, the lightning impulse test is an indispensable key step. Its purpose is to simulate the lightning overvoltage or operational overvoltage that the equipment may encounter during operation, in order to assess its insulation toler...Read more -
Key Points of the Test Procedure for Triple-Frequency Induction Withstand Voltage Testing Equipment
In the insulation test system of power equipment, the external applied voltage test mainly assesses the main insulation, including the insulation between the windings and the ground, as well as the insulation between windings. However, there are limitations in evaluating the longitudinal insulati...Read more -
Technical requirements and test specifications for power frequency withstand voltage test of motors
The power frequency withstand voltage test of the motor is the core inspection item for testing the insulation strength of the motor. By applying a power frequency alternating current voltage higher than the rated voltage between the motor winding and the housing, it verifies the tolerance of the...Read more -
Analysis of Typical Application Scenarios of Switching Characteristics Testing Equipment
I. Introduction: Why are mechanical characteristic tests so important? Every time a fault is isolated or a load is switched in a power system, the high-voltage circuit breaker’s ability to act precisely and reliably within milliseconds is crucial. Statistics show that a significant proporti...Read more