Technical Guide
-
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 -
Overview and Usage Tips of Ground Resistance Tester
The grounding table is applicable to telecommunications, power, meteorology, computer rooms, power distribution lines, tower transmission lines, gas stations, factory grounding grids, lightning rods, etc. This instrument not only has the traditional function of measuring ground resistance by usi...Read more -
Introduction to Common High-Voltage Tests
Wuhan Guodian Xigao Equipment Co., Ltd. introduces several common high-voltage tests for you. 1) Partial discharge test Partial discharge testing is a non-destructive test, currently employing two methods. The first method uses power frequency withstand voltage as the pre-excitation voltage, wh...Read more -
Safety Precautions for Electrical Wire and Cable Voltage Withstand Test
In order to inspect and ensure the installation quality of the cables, before the power supply and commissioning, on-site AC or DC withstand voltage tests should be conducted on the cables. Before and after the withstand voltage test of the wires and cables, the following safety measures should b...Read more -
What are the transformer oil test items?
I. Electrical Performance Tests This section of tests is used to measure the insulation capacity and electrical stability of insulating oil, which is a fundamental test item for ensuring the insulation safety of power equipment. The specific sub-items are as follows: 1. Breakdown Voltage Indicato...Read more -
Knowledge related to insulation withstand voltage tests
I. Definition of Insulation Withstand Voltage Test Insulation withstand test is a technical method used to inspect and evaluate the insulation voltage tolerance capability of electrical equipment. For some critical equipment in operation that lacks spare parts or has a long repair time, it is ne...Read more -
Precautions when detecting cable faults
Power cables, as a part of power lines, are widely used due to their low failure rate, safety and reliability, and flexible outgoing lines. However, once they fail, the repair process is quite difficult and the risks are high. Therefore, special attention should be paid during the maintenance and...Read more