在线客服系统
Huazheng Electric Manufacturing (Baoding) Co., Ltd.

HOME >> NEWS

2026-03
The Development History of Power Testing Instruments
VIEW MORE

Phase I: Inception and the Era of Mechanical Electromagnetic Systems (Late 19th Century - 1940s) - The "From Zero to One" Evolution of Electric Power DetectionThis stage is the foundational period of power detection, where the core issue of basic measurement, namely "what is electrici

The Development History of Power Testing Instruments
2026-03
The Purpose of the Transformer Ratio Tester
VIEW MORE

The core fundamental purpose of a transformer ratio tester is to precisely measure the winding turn ratio (transformation ratio) of electromagnetic induction equipment such as power transformers and voltage transformers, verify the deviation between the measured transformation ratio and the equipmen

The Purpose of the Transformer Ratio Tester
2026-03
Why High-Voltage Circuit Breakers Fail to Trip
VIEW MORE

High-voltage circuit breakers are the silent guardians of power systems, engineered to isolate faults before they cascade into catastrophic failures. Yet even the most robust designs can occasionally refuse to trip when commanded—a scenario that sends shivers down the spine of any substation engine

Why High-Voltage Circuit Breakers Fail to Trip
2026-03
Applications of Loop Resistance Testers
VIEW MORE

In high-voltage environments—substations, switchyards, circuit breaker installations—the integrity of electrical connections isn’t just a maintenance concern; it’s a safety imperative. Loop resistance testers, often overlooked in favor of flashier diagnostic gear, serve as the quiet guardians of

Applications of Loop Resistance Testers
2026-03
Application of DC High Voltage Generator in High Voltage Testing
VIEW MORE

DC high voltage generator is a lightweight, reliable, and high-precision DC high voltage generating device used in power system high voltage testing. It is mainly used for DC withstand voltage and leakage current testing of power cables, transformers, lightning arresters, insulators, and other equip

Application of DC High Voltage Generator in High Voltage Testing
+86-312-6775656 +86 13731210226 sales03@bdhuazheng.com