| abstract |
The invention relates to an online repair method for a power filter with a failed shielding facility. The power supply of the power filter is disconnected, an opening area is cut on the filter under the condition of absolute safety, the filter network and the encapsulating material of the failed power filter are taken out, and the specific values of the filter inductance, the capacitor and the resistor of the failed power filter are approved. Then, the copied filter network is installed in place from the opening area, the circuit of the power filter repaired on line is confirmed to be accurate, the installation is reliable, the insulation meets the requirements, and the opening area is sealed by a sealing plate which is manufactured in advance, so that the on-line repair of the power filter with the failure of the shielding facility is completed. The failure power filter is not required to be detached from the shielding facility, a new power filter with the same specification is not required to be installed, the structure of the shielding facility is not damaged, any risk influencing the technical performance of the shielding facility does not exist, and the method is a quick, good and economic innovative method for repairing the failure power filter of the facility. |