The secondary voltage of the electrostatic precipitator is low while the secondary current is high.

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After cleaning the electrostatic precipitator, the insulation resistance tested was above 50 megohms. The self-test secondary voltage was around 60 kV, and when one circuit of reactor was tested under no-load conditions, the secondary voltage could reach around 50 kV. Once the smoke enters the electrostatic precipitator, its secondary voltage gradually decreases; sometimes it drops to single-digit levels, while at other times it can recover to around 20 to 30 kilovolts or even 40 kilovolts. This voltage fluctuates greatly and remains unstable, with no discharge occurring during this process. Measurements showed that the dust content in the flue gas was 20% higher than the value specified in the dust collection design, while the gas flow rate was 25% higher than the designed value. I ask the experts to help clarify this. Thank you.