Technical
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The range and accuracy of adjustable high-voltage digital megohmmeters
Power test equipment all have a measurement range, also known as the scale. At the same time, the accuracy of the equipment is also very important. Below, introduce the measurement range and accuracy of the adjustable high-voltage digital megohmmeter. Quantity Range (Pressure Limit) Resistance M...Read more -
Performance characteristics of the earth grid grounding resistance tester
Grounding is a key aspect concerning safety in power systems. Below, experts from Chi Yu Electric Power introduce the grounding resistance tester for measuring grounding effectiveness, as well as the performance features of the grounding grid grounding resistance tester. 1. Automatic frequency ...Read more -
Product Introduction and Execution Standards of Cable Fault Testing System
Cables are widely used materials in the power system, and equipment for detecting cable faults is also very common. Now let’s take a look at the product introduction and implementation standards of the cable fault testing system . I. Product Introduction The cable fault tester is a bran...Read more -
Classification and Application Scope of Dielectric Strength Testers
The dielectric strength tester is classified into multiple dimensions based on different technical characteristics and application scenarios. It can be mainly divided according to voltage type, voltage level, application object, and technical implementation method. I. Classification by Voltage Ty...Read more -
Several different structural configurations of the transformer withstand voltage test device
The withstand voltage test of instrument transformers is mainly divided into two categories: external power frequency withstand voltage test and induced withstand voltage test. External power frequency withstand voltage test is mainly used to assess the main insulation, while induced withstand vo...Read more -
High-voltage Switch Mechanical Characteristics Testing Instrument Test Standard Procedure
Whether testing the mechanical characteristics or dynamic characteristics of switches, the test standards and requirements are completely consistent, and all must comply with national standards, industry regulations, special guidelines, and instrument metrology standards. The following is a summa...Read more -
High-voltage circuit breaker AC withstand voltage test equipment and test voltage
AC withstand voltage test of high-voltage circuit breaker The AC withstand voltage test of circuit breakers is the most effective and direct test item for evaluating the insulation strength of circuit breakers. This test should be conducted after all other insulation tests have been completed. F...Read more -
Operation Instructions for the Impedance Characteristic Test Interface of the Relay Protection Tester
Impedance characteristic test of relay protection tester The main function of this test module of the relay protection tester is to analyze the action characteristics of distance protection and determine its impedance action boundary. It can detect the impedance action boundaries of various char...Read more -
The insulation resistance testing method requires the correct use of a digital megohmmeter.
During the process of using electricity, there are issues related to electrical safety. In electrical equipment, such as motors, cables, and household appliances, one of the normal operating conditions is the insulation level of the insulation materials, which is the value of the insulation resis...Read more -
Leakage of DC high-voltage generator and operation of DC withstand voltage test
The DC high-voltage generator conducts leakage and DC withstand voltage tests on the sample. Before conducting the load test, install the high-voltage shielded microammeter onto the high-voltage output terminal of the high-voltage voltage booster device, and connect the corresponding dedicated s...Read more -
Classification and application scope of high-voltage switch dynamic characteristic tester
High-voltage switches (circuit breakers) serve as the core equipment for fault isolation and normal operation control in the power system. Their mechanical action characteristics directly determine the safety and reliability of power grid operation. The high-voltage switch dynamic characteristic ...Read more -
The composition and working principle of the temperature rise high current generator
I. Structure of the Temperature Rise High Current Generator The structure design of the temperature rise high current generator focuses on three core goals: “stable output of high current, precise monitoring of temperature rise, and ensuring the safety of the test”. Depending on the o...Read more