News & Insights
How to Verify Data Before Replacing a Motor Protection Relay
Before swapping a motor protection relay, check four sets of records — nameplate, primary circuit, control circuit and test logs — to avoid mixing up similar devices.
Read more →Online Contact Temperature Monitoring: A Three-Step Acceptance Check
Build a reliable acceptance ledger for contact temperature monitoring using three layers — measuring points, communication and firmware version.
Read more →Wide Voltage Supply on the YHK-8000 Switchgear Control Device
Understand how the 85–265V AC/DC wide supply range of the YHK-8000 simplifies cabinet design and spare-parts management.
Read more →HUAYI Adds RS485 / Modbus Across the Product Portfolio
To support smart substations, communication options are now available on meters, controllers and protection relays for unified supervision.
Read more →Preventing Condensation in Outdoor Switchgear Cabinets
Why temperature & humidity controllers matter for corrosion and flashover prevention, and how to size heater/fan control.
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HUAYI Exhibits at a Regional Power Equipment Fair
Showcasing the latest switchgear control and transformer temperature products to distributors and EPCs.
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