Technical Guide
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Significance and Methods of Mechanical Characteristics Testing for High-Voltage Circuit Breakers
The significance of the mechanical characteristic test for high-voltage circuit breakers Ensure the safety and stability performance of the high-voltage circuit breaker. The test results can help the manufacturer identify design and manufacturing flaws, ensuring that the parameters such as the i...Read more -
DC Resistance Tester On-Site Testing Instructions
Operating Instructions 1. Test wiring Connect the red and black test clips of the test lead to the two ends of the device under test; connect the other end of the test lead to the red and black terminals of the DC resistance tester, respectively, according to color. 2. Smart Power Management ...Read more -
The Principle and Application of GIS Ultrasonic Partial Discharge Detection Technology
Technical Principle GIS ultrasonic partial discharge detection technology is a non-contact detection method. It detects the harmonic waves generated by partial discharge within the high-voltage equipment to determine whether there is a partial discharge fault in the electrical equipment. The spe...Read more -
Insulation Test Items and Methods for Voltage Transformers
Insulation Test of Voltage Transformer Types of Voltage Transformers Voltage transformers currently operating in power systems can be classified into three types based on insulation structure: electromagnetic voltage transformers, cascade-type voltage transformers, and capacitive voltage transf...Read more -
The Application of Impact Pressure Resistance Tester in High Voltage Electrical Tests
I. Overview High-voltage power equipment mainly includes power transformers, gas-insulated switchgear (GIS), power cables, etc. During operation, these equipment are subjected to two types of core transient overvoltage impacts: lightning-induced lightning overvoltage caused by lightning strikes, ...Read more -
Common Questions and Answers Regarding the Selection and Configuration of Relay Protection Test Instruments
I. Selection of basic current and voltage phase numbers The configuration of current and voltage phase numbers for the equipment is entirely based on the actual test object and application scenario. The applicable scenarios of different configurations are clearly defined: 1. Three-phase voltage +...Read more -
The application scenarios and selection methods of DC high-voltage generators
I. Core Technology Principles and Advantages Modern DC high-voltage generators generally adopt mature intermediate-frequency voltage boosting circuit technology, featuring standardized core working procedures. The equipment first converts the conventional AC power supply into an intermediate-freq...Read more -
Test instrument for disconnector discharge counter operation and selection of models
The lightning arrester discharge counter is the core device for recording the number of actions of lightning overvoltage and operational overvoltage. Its operating status is an important basis for evaluating the overall performance of the lightning arrester. The lightning arrester discharge count...Read more -
Application and Standard Procedures of Dielectric Strength Tester
The dielectric strength tester is extremely versatile and is applied in almost all fields related to power and electronic products. Electronic components and materials Capacitors, transformers, inductors: Test their insulation strength between layers, between windings, and with respect to the g...Read more -
Frequently Asked Questions on Power Frequency Test Transformer Capacity and Selection
I. Capacity and Sizing Calculation Q: What parameter is most often overlooked during equipment selection, yet most likely to cause test failure? A: The equivalent capacitance (C) of the test specimen. Most testers focus only on voltage parameters and tend to overlook the impact of capacitance. ...Read more -
What are the main features of the inflatable test transformer?
In the power industry, test transformers are essential equipment for power equipment testing and preventive tests. With the development of China’s power industry, the voltage levels required for test transformers have become increasingly higher. However, traditional oil-immersed test transf...Read more -
Applications and Selection Methods of High-Current Generators
I. Equipment Overview The high-current generator, commonly referred to as a current booster in the field of power testing, is a specialized power supply device that can output currents ranging from several hundred to tens of thousands of amperes under low-voltage conditions. Its core function is ...Read more