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2026
Key Operating Points of DC High-Voltage Generator

Key Operating Points of DC High-Voltage Generator

I have seen many beginners using a DC high voltage generator for the first time, and the most common mistake they make is the wrong operating sequence - either close the high voltage switch without resetting the knob, or turn off the main power directly after the experiment and forget to turn off th

2026
What Are the Wiring Rules for the Ratio Tester?

What Are the Wiring Rules for the Ratio Tester?

The wiring for the variable ratio test looks simple, with only a few test clips, but it wasn't until we arrived on site that we discovered many details about which one to connect, whether to connect the neutral point, and the difference between single-phase and three-phase. Clarifying these ques

2026
How to Choose an Ultra-Low Frequency High Voltage Generator?

How to Choose an Ultra-Low Frequency High Voltage Generator?

Recently, while assisting a friend in reviewing his equipment procurement list, I discovered that the rated voltage of the ultra-low frequency high-voltage generator he selected was sufficient, but its load capacity did not match the tested cable, resulting in the inability to generate a normal wave

2026
Circuit Breaker Characteristic Test: Why Is a High-Current Generator a Standard Tool

Circuit Breaker Characteristic Test: Why Is a High-Current Generator a Standard Tool

Circuit breakers undergo characteristic tests before they are shipped out of the factory, before they are put into operation in substations, and during regular maintenance. What exactly is this "characteristic test" verifying? Simply put, it verifies two things: Can the circuit breaker rel

2026
Practical Guide to Harmonic Detection: Wiring, Reading, And Data Analysis

Practical Guide to Harmonic Detection: Wiring, Reading, And Data Analysis

I. Preparation and preliminary verification before testingBefore conducting the test, ensure that the harmonic detector has sufficient battery power and that the function settings are intact. Verify that the equipment calibration label is within its validity period. Record the basic information of t

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