What is the "acoustic-optical alarm" function? "Sound" is the sound that gives an alarm when the power station fails, and "light" is a signal indicator that can be visually seen. The principle is through the inverter built-in buzzer, when the power station encounters GFCI fault and insulation resistance failure, the buzzer sounds an alarm to remind customers to deal with the fault in time.
"Audio-optic alarm" has a wide range of practicality. Take residential distributed photovoltaic power plants as an example. Photovoltaic power plants are mostly built on roofs and inverters are hung outside. When the power station fails, the inverter's indicator light is on, and the mobile phone monitor shows fault reminders, but these need to be observed artificially in peacetime. The "acoustic-optical alarm" function, on the basis of the above, has added a sound reminder, which greatly facilitates customers.
A few days ago, when I was visiting a friend's family in Australia, I was very active. I suddenly heard alarms from outside the house. The first time I encountered such a situation, I was overwhelmed and asked what happened to my friend. The friend smiled calmly, waved and said nothing. It may be a failure of the PV power plant!
When a photovoltaic power plant fails during operation, an alarm sounds to alert the user, or is it the first time I heard that what is the function? According to a friend, the installed photovoltaic power plant has an audible and visual alarm function. Specifically, the inverter in the photovoltaic power plant has this function.
The photovoltaic market in Australia started early, developed rapidly, and standards are constantly adjusted. The “acoustic-optical alarm†function is a requirement of the Australian grid for household-type power stations.
There is no mandatory requirement for this function at present in China, but from the customer's point of view, I think such an intimate reminder function will still be favored by customers.
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