Technical Guide
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Test methods and precautions for the withstand voltage of insulating boots and insulating gloves
Insulating boots and insulating gloves are important personal protective equipment in power operations, and their withstand voltage tests are a key link to ensure safety performance. Test items and requirements Insulation glove withstand voltage test AC withstand voltage test Voltage level: A...Read more -
Test Standard Procedure for Lightning Arrester Discharge Counter Tester
I. Preparation Work Instrument Inspection Confirm that the appearance of the test instrument is intact, and there is no damage to the insulation layer of the power cord and test clamp wire. Exit Operation It is necessary to confirm that the lightning arrester has exited the operation state, disco...Read more -
Characteristics and Usage of Transformer Core Ground Current Tester
I. Instrument Overview The transformer core grounding current tester is a specialized instrument designed for detecting the grounding current of the transformer core and its accessories. It is an important detection device for ensuring the safe operation of the transformer and preventing multi-po...Read more -
Two main methods for transformer induction withstand voltage test
I. Objectives and Basic Principles The induced voltage withstand test is a key item for evaluating the insulation strength of transformers. Its main purpose is to verify the bearing capacity of the main insulation (winding-to-ground and winding-to-winding) and the longitudinal insulation (phase-t...Read more -
Safety Operating Procedures and Precautions in High Voltage Testing
Safety Operating Procedures for High Voltage Tests: The operation procedures of the experiment consist of four parts, namely the preparatory work before the experiment, the experimental procedures, the post-experiment organization, and other precautions. Preparatory work before the experiment: ...Read more -
Different testing methods for transformer DC resistance testers
Power supply The transformer DC resistance tester provides two types of power supply for the test: AC 220V/DC 12V. In the case of strong electromagnetic field interference, it is recommended to use the DC power supply for the test. In this state, the test values are stable and have strong resista...Read more -
Transformer Lightning Impact Test Measurement System and Waveform
The lightning impulse generator usually adopts multi-stage impulse voltage generators. The working principle of multi-stage impulse voltage generators can be simply summarized as multiple capacitors being charged in parallel, and then automatically connected in series for discharge, forming a ver...Read more -
Waveform judgment method for coil quality detection by inter-turn withstand voltage tester
Method for judging the quality of coils The inter-turn impact withstand voltage tester has four typical automatic inspection and judgment methods. Users can combine or use each method individually according to the actual situation of the tested coil. Each judgment method allows for arbitrary set...Read more -
Leakage Locations and Detection Methods of SF6 Switchgear
The leakage of SF6 switchgear has the following characteristics: It has concealment: it cannot be directly discovered; scientific methods need to be used to find the leakage points. A decrease in the leakage pressure directly affects the breaking performance of the circuit breaker. Repeated ga...Read more -
On-site Test Scheme for Insulating Oil Dielectric Strength Tester
Dielectric strength tester, commonly known as voltage endurance tester or high-voltage breakdown test instrument, is a specialized device used to measure the ability of electrical insulating materials (such as plastics, films, ceramics, insulating oil, wires and cables, etc.) to withstand high vo...Read more -
Main test function description of circuit breaker characteristic tester
Circuit breakers are core protection and control components in power systems, and their operational reliability directly determines the stable operation of the power grid. I. Core Objectives of Regular Circuit Breaker Testing Ensuring operational safety: Verify that the circuit breaker can accura...Read more -
Selection Scheme for 108kV Series Resonance Voltage Withstand Test Equipment
The mainstream solution is a 108kVA/108kV configuration. To meet different test capacity requirements, there are usually two configuration approaches, as follows: I. Main Configuration Details (1) Standard Configuration (108kVA/108kV) Core components: This configuration typically includes one app...Read more