Welcome to Heroway — LCD & Serial Screen Manufacturer
Professional display technology for the intelligent upgrade of power systems, providing a highly reliable and clear visual solution for relay protection instruments.
Relay protection testers present dense parameter sets and waveform data, so legibility matters more than decoration. The screen offers high contrast and a stable backlight, keeping phasor diagrams and trip reports readable in substation lighting.
The display is designed to coexist with high-voltage test circuitry: careful grounding and shielding keep the interface stable while the instrument injects current and voltage. Custom layouts let engineers group settings in the order they actually use them during commissioning.
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