1, Pull out all the telescopic parts of the PSFDB portable telescopic high-voltage discharge*.
2, Insert the configured grounding wire plug into the jack at the head end of the discharge*, and connect the other end of the grounding wire to the earth, ensuring reliable grounding.
3, When discharging, after the test is completed, the boost knob of the control box of the DC generator should be returned to zero. At this time, observe that the voltage on the voltmeter of the DC high-voltage generator control box drops to about 15kV to 20kV before discharging.
4, When discharging, first use the metal tip at the front end of the discharge* to slowly approach the test object that has been disconnected from the test power supply. At this time, the discharge* releases electrical energy through a discharge resistor for grounding discharge. Then use the hook on the grounding wire of the discharge* to hook the test object for a second direct grounding discharge.
PSFDB Telescopic High-Voltage Discharge* Precautions
1, When discharging large-capacitance test objects, after the test is completed and the test power supply is disconnected, wait for a period of time to allow the charge on the test object to self-discharge to the ground through the voltage doubling cylinder and the test object itself. At this time, observe that the voltage on the voltmeter of the control box gradually drops. When the voltage drops to a lower voltage, generally around 5kV to 15kV, use the discharge* to gradually move near the test object. First, discharge through gap air ionization, and you can hear a hissing sound. When there is no sound, use the tip of the discharge* to touch the test object, and finally directly ground the test object for discharge.
2, The amount of accumulated charge on large-capacitance test objects is proportional to the capacitance of the test object and the magnitude of the applied voltage and the duration of time.
3, After testing high-voltage cables of several kilometers or more, the discharge time is generally very long and requires multiple repeated discharges. The resistance capacity needs to be large, so a large-capacity discharge* needs to be ordered.
4, It is strictly forbidden to discharge the test object with the discharge* without disconnecting the test power supply.
5, It is strictly forbidden to step on or squeeze the discharge* with heavy objects, and it is strictly forbidden to bend or break the discharge*.
6, It is strictly forbidden to expose the discharge* to moisture, which affects insulation strength. It should be stored in a dry place.
PSFDB Telescopic High-Voltage Discharge* Product Completeness
1, PSFDB telescopic high-voltage discharge* 1 piece;
2, Special plug, grounding wire 1 piece;
3, User manual 1 copy;
4, Warranty card, certificate of conformity 1 copy;
