Thermal protection activation in PVM-1530 during I-V curve test.
Overheating protection during I-V measurement with PVM-1530.
The note about “activating thermal protection” refers to the internal temperature protection system of the PVM-1530.During I-U curve measurement, the instrument temporarily operates under high electrical and computational load. When testing large PV arrays (for example around 15 kW total power), the internal temperature of the device may increase.
If the temperature of the measuring circuit or power section exceeds a safe limit, the instrument automatically interrupts the measurement to protect internal components from overheating. After a short cooling period, the device can be used again normally.
In short, the mention of 15 kW simply defines the test conditions under which this protection may activate sooner — it is not a fixed limit, but an example of a typical test setup that can cause the meter to reach its thermal protection threshold faster.
The cooling or recovery time depends on the ambient temperature, sunlight intensity, and general environmental conditions in which the meter operates. In high ambient temperatures or direct sun exposure, this period may be longer.
If the temperature of the measuring circuit or power section exceeds a safe limit, the instrument automatically interrupts the measurement to protect internal components from overheating. After a short cooling period, the device can be used again normally.
In short, the mention of 15 kW simply defines the test conditions under which this protection may activate sooner — it is not a fixed limit, but an example of a typical test setup that can cause the meter to reach its thermal protection threshold faster.
The cooling or recovery time depends on the ambient temperature, sunlight intensity, and general environmental conditions in which the meter operates. In high ambient temperatures or direct sun exposure, this period may be longer.