Year1
Using pulse width modulation technology B and advanced electronic circuits and components, the output is not interfered by power grid fluctuations, and has protection measures such as zero overcurrent and overvoltage. The protection circuit can be used regardless of overcurrent or overvoltage. Act quickly to effectively ensure the safety of equipment and personnel. Its output uses a liquid crystal display, and its volume and weight are much lighter than the prototype, making it very suitable for on-site use. The newly designed LCD can directly display and latch field tests without manual calculation.
>Product Introduction
> > Our company is a high-tech joint-stock cooperative enterprise founded by graduates from Australia and the United States, majoring in high-voltage power systems, majoring in automatic control and computers, and a bachelor's degree from Tsinghua University. , the products have been adopted by major power companies in Australia, the United States, Canada and other countries, and have a good reputation.
The series of portable DC high-voltage generators are developed by the company in technical cooperation with Australian and American R companies, using the most advanced international technology and combined with China's national conditions. They are high-reliability, high-grade and truly portable test equipment for the power sector, factories and mines. Zinc oxide arresters, power cables, generators, transformers, switches and other equipment in some power plants are subjected to DC high voltage tests. It is the ideal replacement product of the century.
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>Product Features
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> ①Smaller volume, lighter weight, more beautiful, more reliable, easier to operate, complete functions, ideal for power systems The ideal replacement product of the century.
②Made using the most advanced technology. Pulse train logic array modulation uses high-power B devices and phase fuzzy control, resulting in higher output stability, smaller ripple, and high frequency.
③ According to the maintenance-free design, the main components are imported from Germany, the United States and Japan, which are durable and not afraid of continuous direct short circuit discharge to the ground.
④ High precision and accurate measurement. The output voltage is adjusted using a single multi-turn potentiometer. The voltage boosting process is smooth, the adjustment accuracy is high, and it has coarse and fine adjustment functions. The instrument has high and low voltage ends to measure leakage current, and the high voltage end adopts a spherical shielded digital meter to display and is not afraid of discharge shock. It has good anti-interference performance and is suitable for on-site use.
⑤The voltmeter on the control box directly displays the voltage value applied to the load test sample. There is no need to add an external voltage divider and current limiting resistor during use. The wiring is simple and the operation is convenient.
⑥ Negative polarity output, zero start, continuously adjustable, overvoltage, overcurrent, return to zero, grounding protection, disconnection protection and other protection functions, strong automatic protection function, safe operation, various technical indicators are better than industry standards and similar products product.
⑦ It has the function of %, which brings great convenience to the measurement of zinc oxide arrester. There is a % voltage switch function on the control box of this instrument. When the current rises, turn on the % button. At this time, the value displayed by the voltmeter and ammeter is the % data. After completion, the voltage boost knob should be returned to the zero position immediately. , and return the fine-tuning voltage knob to the zero position. And should immediately turn the % ammonium button switch to the normal position before doing other tests.
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> >Electrical block diagram
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> >Product specifications and technical indicators
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>2 Operating Instructions
> ●
>The indicator lights, switches, knobs, etc. on the control box are clearly marked. When reading this operating instructions, please refer to the component names on the panel of the control box.
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>●There is a seven-core socket on the side of the high-voltage tower chassis for connecting the control box cable, and a copper binding post on the side of the chassis is a grounding terminal for connecting the ground wire.
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>●The high-voltage shielded ammeter that comes with it is a digital microammeter. The jack on the top of the meter is a wire jack for connecting the test product. It also serves as a power switch and does not need to be used. Please unplug it when necessary, and the power will turn off automatically. When replacing the battery, please open the screws on the upper cover. After replacing the battery, please fasten the cover and tighten it with the screws. When replacing the battery of a flat watch, open the back cover.
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>Connect the ground terminal on the control box panel and the ground terminal of the high-voltage tower with a ground wire and connect it firmly to the ground wire on site or in the laboratory. To ensure the safety of you and the equipment, please be sure to check the ground wire repeatedly to ensure that all parts are well grounded.
>
>Use the provided seven-core cable to connect the control box and the high-voltage tower. Both ends of the cable are the same fast aviation plugs. Pay attention to aligning the notch on the side of the plug with the thick convex part on the inside of the socket to insert. and tighten clockwise. (You can connect either end of the cable to the control box or high-voltage tower) Connect the power cord. The power supply is single AC
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>, power frequency
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>.
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>Turn on the power switch, and the power switch light (green) and panel indicator will light up. The high-voltage indicator light
>(
>green
>)
> will light up. If the high-voltage reminder buzzer is in the on position, it will sound to remind the operator that the high-voltage is increasing. , at this time, turn the high-voltage output adjustment knob clockwise to
>
> increase the voltage, the voltmeter will display the voltage
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> value on the load test sample, and the ammeter will Displays the sum of the current flowing through the test specimen and all leakage currents, excluding the current of the built-in high-voltage voltage divider. Current is measured in units of microamps
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>.
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>If the power switch is turned on, the high voltage indicator light (green) does not light up and the fault is displayed
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>Return to zero
>< br/> >When the light (red) is on
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>, it means that the high-voltage output adjustment knob is not at the zero position. Please turn the knob counterclockwise to
>
>zero. position
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>, and return the fine-tuning voltage knob to the zero position, some
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>return to zero
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> and the lights will go out. Then adjust it clockwise to increase the voltage.
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>If voltage regulation protection within the rated output voltage range is not required
>
>, the overvoltage protection setting knob should be turned clockwise to the maximum value. At this time, when the output voltage exceeds the rated output voltage, it will automatically protect and cut off the high voltage. If voltage regulation protection is required within the rated output voltage range, please follow the above steps to boost the voltage to the predetermined protection voltage with no load, and then slowly rotate the overvoltage protection setting knob counterclockwise to the required voltage. Perform overvoltage protection action,
>
>overvoltage
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> indicator light is on, keep the overvoltage protection setting knob at this position, and return the voltage boost knob to At zero position, turn off the power. When the test sample is connected, the high voltage will be automatically cut off when the voltage rises above the predetermined voltage.
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>When a fault such as overvoltage or overcurrent occurs, the high voltage is automatically cut off, the high voltage indicator light (green) goes out, the buzzer stops sounding, and the corresponding fault indicator light turns on, indicating that the test product If it is short-circuited and you want to restart, you should return the high-voltage output adjustment knob to the zero position, and the fine-tuning knob is also at the zero position, then turn off the power switch, and then turn on the power switch to remove the protection and restart the voltage.
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>●When shutting down during normal operation, you should first return the high voltage adjustment knob counterclockwise to the zero position, then return the fine voltage adjustment knob to the zero position, and finally turn off the power switch.
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>●The power switch is also used as a protection reset switch. Therefore, when the fault indicator light (except the zero return indicator light) is on, the power switch should be turned off and on again to release the protection and reset again. pressure.
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>When the load is a large capacitive load, in order to avoid triggering the overcurrent protection due to excessive charging current, please slow down the voltage boost speed appropriately. After the test is completed, turn the output voltage adjustment knob counterclockwise to the zero position. At this time, the voltmeter still displays the voltage value on the test sample. Please wait until the test sample is discharged through the high-voltage tower to
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> or below. Use a ground rod to discharge when necessary to ensure safety.
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Three Precautions
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>To ensure personal safety, users are repeatedly reminded to pay attention to the control box and high-voltage tower. Good grounding and discharge problems of test products and high-voltage towers after shutdown.
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>Please do not block the upper and lower ventilation holes of the control box, and prevent foreign objects from falling into the holes. If the control box has a fan, you should always check whether the fan is running normally.
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>When the high-voltage tower insulation tube is dirty, please wipe it with a dry cloth. Do not use alcohol, gasoline and other organic solvents to wipe it. The surface of the insulating cylinder can be cleaned with detergent and allowed to dry before use. Please put it in an aluminum alloy box when transporting or not in use.
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>When replacing the fuse, please replace the fuse according to the amperage calibrated next to the fuse holder.
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>If the high-voltage shielded microammeter displays
> B
>, please replace the
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> battery to To avoid measurement errors, please turn off the power when not in use.
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>Do not open the control box and high-voltage tower without permission, as this will affect the product warranty. The factory is not responsible for self-disassembly.
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Four Simple
Trouble
Troubleshooting
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>When the power switch is turned on, the digital display on the control box The meter does not light up
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>Please check the power connection and all fuses. If the fuse is damaged, please replace it with a new one according to the amperage marked next to the fuse holder.
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>If the power switch is turned on, the digital display will light up, but the high voltage indicator light (green) will not light up, and high voltage cannot be applied.
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①
>Fault display
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>Return to zero
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>Light on
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< br/> >If there is no return to zero, please turn the high-voltage output adjustment knob and the fine-tuning knob counterclockwise to return to zero until
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>Return to zero
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>The light goes out , you can increase the high pressure.
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②
>Fault display
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>Others
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>There are two phenomena when the light is on,
>< br/> >Grounding protection,
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>Break protection
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>The grounding wire may not be connected properly, or the grounding wire may not be reliably grounded. Please connect the reliable ground wire, turn off the power and restart it.
>
b
>It may be that the cable connecting the control box and the high-voltage tower is not connected properly. After connecting the cable, please turn off the power and restart it. Or this fault may occur when the welding heads at both ends of the cable are desoldered
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>Please weld the welding heads at both ends of the cable, turn off the power, and restart.
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>Maybe a wire in the control box is desoldered and disconnected. Please re-solder it, turn off the power, and restart it.
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>Everything is normal, but it is protected
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during the process of not rising to the rated output voltage
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> /> >①Fault display
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>Overcurrent
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>The light is on
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>The test sample is short-circuited, or leakage current is too big.
>
b
>When the load is large, the voltage boost is too fast. Turn off the power, restart, and slow down the boost speed.
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②
>Fault display
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>Overvoltage
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>Light on
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< br/> >The overvoltage protection setting knob is not at the maximum position. Please turn it clockwise to the maximum position, turn off the power, and restart.
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>When the test product is short-circuited under high voltage, due to the large short-circuit current, all the fault indicator lights may be lit. This is normal. Please eliminate the fault of the test product. and then restart.
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>After troubleshooting the test product, the fault indicator light is still on and high voltage cannot be applied.
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>The power switch is also a fault protection reset switch. Please turn off the power switch and restart it to boost the voltage.
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>If you find that the voltmeter numbers fluctuate greatly, please check the aviation plugs at both ends of the connecting cable
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>The foot shielding net head and the center shielding wire head Is it desoldered and disconnected? If so, please solder it.
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>●If the fault cannot be eliminated by following the above methods, please contact the manufacturer.
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Five-product complete set
>⒈
>High-pressure multiplier host
>One set
/> > (
>With aluminum alloy box
)
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>Control box
>One set
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>Power cord
>One
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>High frequency output
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>Seven Core cable
>One piece
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>Product factory test report
>One piece
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>Output cable
>One piece
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>Product instruction manual
>One piece
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>Product Certificate Warranty Card
>One copy
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>Insurance Card
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>Only
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Six additional supporting products
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>High voltage shielded digital microammeter
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Seven Appendix
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>Product warranty for one year and lifetime maintenance (voltage and ammeter one year after sale) Calibration is not covered by the warranty). The high-voltage shielded digital microammeter is a wearing part and has a one-year warranty.
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>When ordering, please indicate the product model, name and quantity, and any special requirements.
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