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In some overseas project specifications,   directly powering the protection device from the cabinet DC supply   during testing is not...

Why Add a Power Module? In some overseas project specifications,   directly powering the protection device from the cabinet DC supply  ...

In overseas projects,   Testblocks   are essential for safe and standardized protection testing. Engineers often ask the same question:...

Dual-bus substations are common in transmission and renewable integration projects, but managing   PT voltage transfer   through discrete...

In modern substations and industrial facilities,   auxiliary power quality   directly determines the reliability of protection,...

In every protection system,   trip circuit integrity   is a critical acceptance and maintenance checkpoint. A circuit that fails between...

In many overseas substations, protection schemes demand   very fast breaker operation . When distance, differential, or busbar protection...

In protection systems, the quality of   trip blocking and reset   determines the safety boundary after a fault and defines the discipline...

In 3/2 busbar schemes, where three breakers are connected in series,   synchronizing voltage selection and transfer   must be precise....

In manual synchronization,   synchronizing check   is the default method: close only when the voltage, frequency, and phase‑angle...

Three‑phase motors are exposed to two high‑impact risks during maintenance and temporary hookups:  incorrect phase sequence  (reverse...

Three‑phase motors are vulnerable to two high‑impact events:   incorrect phase sequence   (reverse rotation) and   phase loss  ...

In engineering practice, different systems may require different   alarm and reset logics   for three-phase undervoltage supervision...

In secondary circuits, proper wiring of three-phase voltage supervision relays is critical to ensure accurate monitoring and reliable...

In power-system interconnection, accurate   synchronizing voltage selection   is essential for secure and reliable operation. This...

Synchronizing Multiple Generating Units In hydropower plants and other multi-generator sites, several units often need to connect to the...

Complexity in Conventional Manual Synchronizing In field synchronizing operations, operators are required not only to monitor voltmeters,...

In traditional synchronizing schemes, operators relied on five instruments—two voltmeters, two frequency meters, and one synchronoscope....

Customer Demand: Simpler, Clearer Indication Operators asked a simple question: Can one device display both sides’ voltage? Can one...

Discovery of the Problem At the start of our company’s journey, our first product was an optocoupler isolation terminal, designed to...