How DC High Voltage Generator Determines Instrument Failure Through Power Supply and Voltage Regulation
Ningbo City Yinzhou Ruican Machinery Co.,Ltd , https://www.factoryforging.com
March 18 13:07:12, 2024
DC high voltage generator If you judge the fault of the instrument through the power supply and voltage regulation, the following will tell you in detail the methods and methods, as well as other judgment methods, which will surely make you have greater gains and understanding:
(1) Indicators, switches, knobs, etc. on the control box have been marked clearly. Please refer to the name of the component on the panel of the control box for the operating instructions.
(2) The seven-core socket on the side of the high-voltage tower chassis is the socket for the control box cable. The copper terminal on the side of the chassis is used for the grounding of the grounding terminal.
(3) A high-voltage shielding ammeter is attached to the microampere meter. The jack on the top of the meter is the jack that connects the tested product line. It also serves as a power switch. When not in use, unplug the plug to automatically turn the power off. . When replacing the battery, use a thread cutter to open the cover. After replacing the cover, fasten the cover and tighten it with a wire. Turn the rear cover off when the battery is replaced with an oblate ball.
1. Connect the ground terminal on the panel of the control box and the ground terminal of the high voltage tower with the grounding wire and connect it with the ground wire of the site or laboratory. To ensure the safety of your equipment and equipment, be sure to check the ground repeatedly to ensure that each part is properly grounded.
Use the supplied seven-conductor cable to connect the control box to the high-voltage tower. The cables must have the same fast air plug at both ends. Note that the side of the plug should be aligned with the coarse convex part on the inside of the socket and tightened clockwise. (Any end of the cable can be connected to the control box or high voltage tower) Connect the power cable. The power supply is a single item of AC 220V.
2. Turn on the power switch. At this time, the power switch light (green) and the panel light are on. When the high voltage switch is turned on, the high voltage indicator (green) is on. If the high pressure indicator buzzer is in the on position, the operator will be prompted to increase the high voltage. At this time, turn the high pressure output control knob clockwise to increase the pressure. The voltmeter shows the value of the voltage KV on the load test sample. The ammeter shows the sum of the current flowing through the test sample and all the leakage current but does not include the current of the built-in high voltage divider. The current is microampere.
If the power switch is turned on and the high voltage switch is turned on, the high voltage indicator (green) does not light, and when the "return to zero" indicator (red) in the fault display is on, it means that the high voltage output control knob is not in the zero position. Please turn the knob counterclockwise until The "return to zero" light goes out, and then adjust it clockwise to boost the voltage.
3. If the DC high voltage generator does not require voltage regulation protection within the rated output voltage range, turn the overvoltage protection setting knob clockwise to the maximum value. At this time, when the output voltage exceeds the rated output voltage, it is automatically protected and the high voltage is cut off. If it is required to perform voltage regulation and protection within the rated output voltage range, please step up the no-load boost voltage to the predetermined protection voltage according to the above steps, and then rotate the overvoltage protection setting knob counterclockwise to the required voltage. A pressure protection action has been performed. The "overvoltage" indicator light is on. Keep the overvoltage protection setting knob at this position and turn the boost knob back to zero to turn off the power. When the test sample is connected, the high voltage is cut off when the boost pressure exceeds the predetermined voltage.
4. When overvoltage, overcurrent or other faults occur, the high voltage is automatically cut off, the high voltage indicator light (green) goes off, the buzzer stops sounding, and the corresponding fault indicator is on, indicating that the product is short-circuited. To restart, it should be The high voltage output adjustment knob returns to zero, the fine adjustment knob is also on the zero position, and then the power switch is turned off, and then the power switch is turned on again to remove the protection and boost the voltage again.
(1). When the normal operation is turned off, the high-pressure adjustment knob should be returned to the zero position in reverse, and then the fine-tuning knob is returned to the zero position, and finally the power switch is turned off.
(2). The power switch is also used to protect the reset switch. When the fault indicator light (except for the zero return indicator light) is on, turn off the power switch and turn it on again to release the protection.
5. When the load of the DC high-voltage generator is a large capacitive load, in order to prevent the over-current of the charging current from triggering the over-current protection, please appropriately slow down the boosting speed. After the test is finished, turn the output voltage adjustment knob counterclockwise to zero to turn off the high voltage switch. At this time, the voltmeter will still display the voltage value on the test sample. Please wait until the sample passes the high voltage tower discharge to below 20KV and then discharge it with the ground rod. To ensure safety.
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