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The role of the discharge rod

time:2020/10/31   source:华天电力  reading:226 time

The role of discharge rod in DC high voltage generator


1. Points to note when using DC high voltage generator supporting product discharge rod


1. When discharging a large capacitive test product, after the test is completed, after disconnecting the test power supply, you should wait for a period of time to allow the charge on the test product to pass through the pressure doubler and the test product itself to self-discharge to the ground. It can be observed that the voltage of the voltmeter on the control box is gradually dropping. When the voltmeter drops to a lower voltage, generally about 5Kv~15Kv, the discharge rod can be used to gradually move to the vicinity of the test product, and the air will move through the gap first. Discharge, you can hear a hissing sound at this time. When there is no sound, touch the sample with the discharge rod, and then discharge the sample directly to the ground.


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2. The size of the accumulated charge of the large capacitive test sample is proportional to the size of the test sample capacitance and the level of the applied voltage and the length of time.


3. After the test for high-voltage cables over a few kilometers, the discharge time is generally very long, and repeated discharges are required many times, and the resistance capacity is very large, so you need to order a large-capacity discharge rod.


4. It is strictly forbidden to discharge the test product with a DC high-voltage discharge rod without opening the test power supply.


5. It is strictly forbidden to squeeze the DC high-voltage discharge rod with feet and heavy objects, and it is strictly prohibited to bend the DC high-voltage discharge rod.


6. It is strictly forbidden to damp the DC high voltage discharge rod, which will affect the insulation strength, and should be placed in a dry place.


Second, the correct use of DC high voltage generator supporting products discharge rod


1. Pull out all the telescopic parts of the portable telescopic new DC high-voltage discharge rod.


2. Insert the prepared grounding wire plug into the jack at the head end of the DC high-voltage discharge rod, and connect the other end of the grounding wire to the ground. The grounding must be reliable.


3. When discharging, after the test is completed, the boost knob of the control box of the DC high voltage generator should return to the zero position. At this time, you can observe that the voltage of the voltmeter on the control box drops to about 15KV~20KV before discharging. .


4. When discharging, you should first use the metal tip of the front end of the DC high-voltage discharge rod, and slowly move into the test product that has been disconnected from the test power supply. At this time, the electric energy released by the discharge rod is discharged to the ground through the discharge resistor. Then the hook on the discharge rod is used to hook the test sample for the second anti-electricity.


3. Application range of discharge rods for DC high voltage generator supporting products


The portable telescopic DC high-voltage discharge rod is processed by a new type of insulating material. It has the characteristics of elongated and shrinkable. The portable retractable new DC high-voltage discharge rod is suitable for use in various outdoor high-voltage tests, especially after the DC withstand voltage test, the charge accumulated on the sample is discharged to the ground to ensure personal safety. The discharge rod should be used for discharge. It is a necessary equipment to ensure the personal safety of every tester. The portable telescopic DC high-voltage discharge rod is convenient, flexible, small in size, light in weight, safe and reliable, and is an indispensable safety tool for high-voltage workers.


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