Technical
-
Different classifications and application scopes of DC resistance testers
I. Classification of DC Resistance Testers DC resistance testers are mainly classified based on measurement principles, output current amplitude, and functional structure. Different types of devices have distinct technical characteristics and application scenarios. Classification by measurement p...Read more -
Transformer Short-Circuit Impedance Testing Instrument: Technical Principle and Applications
I. Equipment Overview The transformer short-circuit impedance tester is a specialized testing device used to detect the deformation and displacement conditions of the windings of power transformers. During transportation, transformers may be subjected to mechanical shocks, or during operation, if...Read more -
Testing Instruments for Zinc Oxide Surge Arresters and Their Technical Characteristics
Zinc oxide arresters are crucial overvoltage protection devices in the power system, and their operational conditions directly affect the overall safety and stability of the power grid. After long-term operation, the internal valve plates of the arresters are prone to performance degradation due ...Read more -
10kV Switchgear Circuit Resistance Testing Standard Technical Specification
I. Test Purpose and Significance The 10kV switch cabinet circuit resistance test is a core test item for evaluating the contact performance of the conductive system of the switch cabinet. The magnitude of the circuit resistance directly reflects the contact conditions of the circuit breaker conta...Read more -
Instructions for Cable Fault Testing System
Description of the cable fault testing system: (1) Under-voltage indication: When the internal battery voltage of the instrument is too low, the under-voltage indicator light will come on. At this point, the instrument needs to be charged. (2) Charging indicator: After plugging in the 220V AC p...Read more -
Performance characteristics of the earth grid grounding resistance tester
Grounding is a key aspect related to safety in power systems. Below, experts from HV HIPOT 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 recognition: T...Read more -
Common Error Handling of Switch Mechanical Characteristic Tester
During the use of power test equipment, errors may occur due to operational mistakes. Below, experts from HV HIPOT provide an example to introduce the handling of common errors for a product – the switch mechanical characteristic tester. The instrument indicates “Output short circui...Read more -
Application and Selection of Circuit Breaker Comprehensive Characteristic Tester
I. Working Principle and Core Functions The circuit breaker comprehensive characteristic tester is built on high-speed data acquisition and sensor technology. It collects multiple signals such as time, displacement, and current during the operation of the circuit breaker, and through professional...Read more -
Insulation Inter-Winding Electrical Strength Testing Instrument Test Standard Procedure
Electrical equipment such as motors, transformers, solenoid valves, reactors, relays and other types of electromagnetic winding electrical devices have the most vulnerable and easily failing insulation structure in their enameled wire winding insulation. During operation, when the equipment is su...Read more -
Variable parameters of microcomputer relay protection tester
Power detection equipment has certain parameters. For example, the microcomputer relay protection tester has some variables that need to be selected with appropriate parameters. Here, experts from Guodian XiGao have written an article to specifically explain the variable parameters of the microco...Read more -
Precautions for Vacuum Degree Tester of Vacuum Switches
When using power test equipment, there are some matters that need attention. Let’s take a look at the precautions for the vacuum degree tester of vacuum switches: The vacuum degree test should be carried out on a clear and dry day, and the surface of the vacuum tube should be wiped clean. ...Read more -
Selection methods for battery internal resistance testers: 3 core points
The selection of a battery internal resistance tester should focus on three core aspects: “non-destructiveness, accuracy, and scene adaptability”. Based on the battery type, detection requirements, and industry standards, it should be selected from the following six key dimensions to ...Read more