有载调压切换装置的检查和试验，应符合下列规定:1 有载分接开关绝缘油击

The inspection and test of the on-load voltage regulating switching device shall meet the following requirements: <br>1 The breakdown voltage of the insulating oil of the on-load tap-changer shall meet the requirements of Table 19.O.1 of this standard; <br>2 Under the transformer element voltage, the on-load point The dynamic operation of the switch should not be less than 2 cycles, and the electric operation should not be less than one cycle. The power supply voltage during electric operation should be 85% or more of the rated voltage. There should be no jams in operation, and the linkage program, electrical and mechanical limits should be normal;

The inspection and testing of the carrier pressure switching device shall comply with the following regulations:<br>1 The insulation oil perforated voltage of the load tap switch shall comply with the provisions of Table 19.O.1 of this standard;<br>2 Under the transformer metavolt, the dynamic operation of the load-on split switch shall not be less than 2 cycles, and the electric operation shall not be less than one cycle, where the power supply voltage shall be 85% or more of the rated voltage when operating electricly. Operation should be cardless, connecting procedures, electrical and mechanical limits should be normal;

The inspection and test of on load voltage regulation switching device shall meet the following requirements:<br>The breakdown voltage of on load tap changer shall comply with the provisions of this standard;<br>2. Under the transformer unit voltage, the on load tap changer shall have no less than 2 cycles of dynamic operation and no less than 3 cycles of electric operation, of which the power supply voltage shall be 85% or more of the rated voltage during electric operation. The operation shall be free from jamming, and the interlock procedure, electrical and mechanical limit shall be normal;