main feature
1. ZGF series intelligent DC high voltage generator adopts computer control technology in the industry to control PWM pulse width modulation, measurement, protection and display, display output DC high voltage, current, overvoltage setting, timing and protection information on LCD display. , And with RS232 interface to communicate with the computer.
2. The intelligent DC high voltage generator takes the lead in adopting the segmented structure, that is, it can be used not only for high voltage level but also for lower voltage level, and maintain its accuracy. At 100 / 200kV / 2mA section two, for example, when to do single 100kV / 4mA use, the system can be used to 35kV DC high voltage electrical equipment test, this time can be avoided to ensure the accuracy of the measurement Mara car; two When used, it can be used for 200kV/2mA. It can be used for 220kV sub-section, 110kV and below zinc oxide arrester DC test and DC withstand voltage test of cross-linked cable. A truly dual-purpose machine greatly facilitates the use of on-site users.
3, smart DC high voltage generator first intelligent grounding protection and alarm function (poor grounding can not be boosted), pressure measuring circuit loop protection (voltage measurement circuit loop disconnection instrument can not boost), emergency stop button, greatly improving the operation Personnel safety during the job.
4. The intelligent DC high-voltage generator adopts a 30-50kHz high-frequency voltage doubler circuit, takes the lead in applying the latest PUM pulse width modulation technology and high-power IGBT devices, and adopts special shielding, isolation and grounding measures to make direct current according to electromagnetic compatibility theory. High voltage generators achieve high quality, intelligent DC high voltage generators can withstand rated voltage discharge without damaging the machine.
5. The intelligent DC high voltage generator adopts large voltage feedback to greatly increase the voltage stability. Specifically designed for the zinc oxide arrester test is the trigger button of 0.75UDC-1mA, and the frequency is increased to 30-50KHz to make the control box and Double pressure cylinder volume and weight have been greatly reduced, more convenient for on-site use.
6, intelligent DC high voltage generator selection of United States, Japan and other advanced technology components and the German-made international series chassis, set practical and aesthetic as one.
7. The pressure doubler cylinder of the intelligent DC high voltage generator is developed with German technology; the intermediate frequency transformer is specially designed by the relevant experts, with small volume and large capacity. Double-pressure cylinder base contains â–³-Y legs, that is, when it is used, it develops into a Y-shape. The support is stable and convenient. When packing, it shrinks into a delta shape and is hidden in the base.
8. The intelligent DC high voltage generator has various protection functions, such as: low voltage overcurrent, low voltage overvoltage, high pressure overcurrent, high voltage overvoltage, zero position protection, and no ground protection. Fault sampling uses a dedicated sensor, the action time is nanoseconds, optical isolation elements are also nanoseconds, and the operation time is generally 10 microseconds to completely shut off the DC main loop. Promote rapid shutdown signal dedicated sensor sampling at the output, the reaction time is nanosecond by nanosecond optical isolator element and the analog switch nanoseconds, microseconds, the entire process in the amplifier circuit 2 is driven signal Cut off to ensure that the output device does not damage the power device in the event of a short circuit.
9. The intelligent full-shielded automatic high-voltage micro-ampere meter with DC high voltage generator adopts a metal shell. The liquid crystal display uses a conductive glass and the shell is connected. The table shell has no buttons, and the test wire and the shielding wire are led out coaxially. A true full shield is achieved; the ammeter is a 4 1/2 digit display, which can be automatically shifted from 0-200-2000 μA, which greatly increases the resolution of leakage current leakage.
Technical Parameters
Working power: AC220V (-20% ~ +10%) 50Hz
Work: intermittent use, 60 minutes rated load voltage measurement accuracy: 1.0% (full scale) ± 2 words <br> <br> current measurement accuracy:
1. Intelligent DC high voltage generator adopts automatic shift mode on the low voltage side, total current is 1.0% (full scale) ± 2 words, intelligent high voltage side of DC high voltage generator is full screen * automatic shifting high precision microampere meter , 41/2 digital display, micro-ampere display with conductive glass and metal shell connected, excellent screen protection, measuring range 0-200-2000uA, accuracy of 1.0% ± 2
3. The intelligent DC high voltage generator can be equipped with infrared transmission microampere meter and handheld infrared receiver. When the high voltage microampere meter display cannot be seen, the high voltage leakage current can be directly read by the handheld infrared receiver. The generator adopts computer control technology to control PWM pulse width modulation, measurement, protection and display. The display screen adopts large-screen liquid crystal display and displays output voltage, leakage current, over-voltage setting value, timer and Chinese alarm, and has backlight; There is a timer, there is a display on the display, and the timing can be adjusted. When the time is almost over, there is an audible alarm.
Operating frequency: 40kHz, using closed loop large feedback ripple coefficient: ≤ 0.5%
0.75 Function: When conducting the zinc oxide surge arrester test, press the 0.75 function key, the voltage is automatically reduced to 75%, and the accuracy is ≤ 1.0%.
The grounding line of the test circuit must be in good contact, otherwise the machine refuses to work and sounds prompts. If the test power supply is a 1:1 isolation transformer or a field portable mini-generator is used as a power supply, please ground the power supply to any end of the power supply. Otherwise, it will sound an alarm. If there is no reliable ground wire on the site, you can press the “75%UDC/1mA†button on the panel for 2-3 seconds to cancel the alarm, and the instrument can still work normally.
Over-voltage setting error: ≤ 1.0%, using software setting voltage adjustment accuracy: 0.1%
Voltage regulation rate: The output voltage fluctuation range does not exceed 1.0% when the power supply voltage changes within 220V±10%
Safety performance
Over-current protection: When the high-voltage output is short-circuited, the instrument should immediately cut off the output, at the same time the instrument should not be damaged (overcurrent protection, and there are Chinese alarm and voice prompts)
Over-voltage protection: When the high-voltage output exceeds the over-voltage setting value, the instrument should automatically cut off the output immediately, which guarantees that the test product will not be damaged due to over-voltage (over-voltage protection, menu-based setting, and there are Chinese alarm tips and sound prompt)
Zero position protection: The potentiometer should be zeroed to boost the voltage to prevent the voltage at the high voltage end, causing harm to the person and the instrument (zero protection, and there are Chinese alarm and voice prompts)
Grounding protection: When the instrument is not grounded or has bad grounding, the instrument should have a grounding alarm and corresponding prompts, and can not increase the pressure, to prevent harm to people and equipment (with ground protection, and there are Chinese warning and voice prompts. In special circumstances, when no test is required for reliable grounding, press the 75% function key to release the protection, which is convenient for the user to test in the field.)
Open circuit protection of internal voltage measurement circuit: If there is no protection when the internal voltage measuring resistor is open, the voltage measuring signal line is open, and the cable terminal is in poor contact, the instrument voltmeter does not indicate and the high voltage terminal has voltage, which may cause personal injury. Injury accident (with internal voltage measurement circuit open circuit protection, and Chinese alarm and voice prompts)
Dear Customer:
Thank you for your attention to our products. In addition to this product introduction, our company also introduces the vacuum tester, infrared thermometer, dielectric loss tester, high voltage test transformer, vacuum oil filter, high current generator, etc. If you are interested in our products, welcome to inquire. Thank you!
1. ZGF series intelligent DC high voltage generator adopts computer control technology in the industry to control PWM pulse width modulation, measurement, protection and display, display output DC high voltage, current, overvoltage setting, timing and protection information on LCD display. , And with RS232 interface to communicate with the computer.
2. The intelligent DC high voltage generator takes the lead in adopting the segmented structure, that is, it can be used not only for high voltage level but also for lower voltage level, and maintain its accuracy. At 100 / 200kV / 2mA section two, for example, when to do single 100kV / 4mA use, the system can be used to 35kV DC high voltage electrical equipment test, this time can be avoided to ensure the accuracy of the measurement Mara car; two When used, it can be used for 200kV/2mA. It can be used for 220kV sub-section, 110kV and below zinc oxide arrester DC test and DC withstand voltage test of cross-linked cable. A truly dual-purpose machine greatly facilitates the use of on-site users.
3, smart DC high voltage generator first intelligent grounding protection and alarm function (poor grounding can not be boosted), pressure measuring circuit loop protection (voltage measurement circuit loop disconnection instrument can not boost), emergency stop button, greatly improving the operation Personnel safety during the job.
4. The intelligent DC high-voltage generator adopts a 30-50kHz high-frequency voltage doubler circuit, takes the lead in applying the latest PUM pulse width modulation technology and high-power IGBT devices, and adopts special shielding, isolation and grounding measures to make direct current according to electromagnetic compatibility theory. High voltage generators achieve high quality, intelligent DC high voltage generators can withstand rated voltage discharge without damaging the machine.
5. The intelligent DC high voltage generator adopts large voltage feedback to greatly increase the voltage stability. Specifically designed for the zinc oxide arrester test is the trigger button of 0.75UDC-1mA, and the frequency is increased to 30-50KHz to make the control box and Double pressure cylinder volume and weight have been greatly reduced, more convenient for on-site use.
6, intelligent DC high voltage generator selection of United States, Japan and other advanced technology components and the German-made international series chassis, set practical and aesthetic as one.
7. The pressure doubler cylinder of the intelligent DC high voltage generator is developed with German technology; the intermediate frequency transformer is specially designed by the relevant experts, with small volume and large capacity. Double-pressure cylinder base contains â–³-Y legs, that is, when it is used, it develops into a Y-shape. The support is stable and convenient. When packing, it shrinks into a delta shape and is hidden in the base.
8. The intelligent DC high voltage generator has various protection functions, such as: low voltage overcurrent, low voltage overvoltage, high pressure overcurrent, high voltage overvoltage, zero position protection, and no ground protection. Fault sampling uses a dedicated sensor, the action time is nanoseconds, optical isolation elements are also nanoseconds, and the operation time is generally 10 microseconds to completely shut off the DC main loop. Promote rapid shutdown signal dedicated sensor sampling at the output, the reaction time is nanosecond by nanosecond optical isolator element and the analog switch nanoseconds, microseconds, the entire process in the amplifier circuit 2 is driven signal Cut off to ensure that the output device does not damage the power device in the event of a short circuit.
9. The intelligent full-shielded automatic high-voltage micro-ampere meter with DC high voltage generator adopts a metal shell. The liquid crystal display uses a conductive glass and the shell is connected. The table shell has no buttons, and the test wire and the shielding wire are led out coaxially. A true full shield is achieved; the ammeter is a 4 1/2 digit display, which can be automatically shifted from 0-200-2000 μA, which greatly increases the resolution of leakage current leakage.
Technical Parameters
Working power: AC220V (-20% ~ +10%) 50Hz
Work: intermittent use, 60 minutes rated load voltage measurement accuracy: 1.0% (full scale) ± 2 words <br> <br> current measurement accuracy:
1. Intelligent DC high voltage generator adopts automatic shift mode on the low voltage side, total current is 1.0% (full scale) ± 2 words, intelligent high voltage side of DC high voltage generator is full screen * automatic shifting high precision microampere meter , 41/2 digital display, micro-ampere display with conductive glass and metal shell connected, excellent screen protection, measuring range 0-200-2000uA, accuracy of 1.0% ± 2
3. The intelligent DC high voltage generator can be equipped with infrared transmission microampere meter and handheld infrared receiver. When the high voltage microampere meter display cannot be seen, the high voltage leakage current can be directly read by the handheld infrared receiver. The generator adopts computer control technology to control PWM pulse width modulation, measurement, protection and display. The display screen adopts large-screen liquid crystal display and displays output voltage, leakage current, over-voltage setting value, timer and Chinese alarm, and has backlight; There is a timer, there is a display on the display, and the timing can be adjusted. When the time is almost over, there is an audible alarm.
Operating frequency: 40kHz, using closed loop large feedback ripple coefficient: ≤ 0.5%
0.75 Function: When conducting the zinc oxide surge arrester test, press the 0.75 function key, the voltage is automatically reduced to 75%, and the accuracy is ≤ 1.0%.
The grounding line of the test circuit must be in good contact, otherwise the machine refuses to work and sounds prompts. If the test power supply is a 1:1 isolation transformer or a field portable mini-generator is used as a power supply, please ground the power supply to any end of the power supply. Otherwise, it will sound an alarm. If there is no reliable ground wire on the site, you can press the “75%UDC/1mA†button on the panel for 2-3 seconds to cancel the alarm, and the instrument can still work normally.
Over-voltage setting error: ≤ 1.0%, using software setting voltage adjustment accuracy: 0.1%
Voltage regulation rate: The output voltage fluctuation range does not exceed 1.0% when the power supply voltage changes within 220V±10%
Safety performance
Over-current protection: When the high-voltage output is short-circuited, the instrument should immediately cut off the output, at the same time the instrument should not be damaged (overcurrent protection, and there are Chinese alarm and voice prompts)
Over-voltage protection: When the high-voltage output exceeds the over-voltage setting value, the instrument should automatically cut off the output immediately, which guarantees that the test product will not be damaged due to over-voltage (over-voltage protection, menu-based setting, and there are Chinese alarm tips and sound prompt)
Zero position protection: The potentiometer should be zeroed to boost the voltage to prevent the voltage at the high voltage end, causing harm to the person and the instrument (zero protection, and there are Chinese alarm and voice prompts)
Grounding protection: When the instrument is not grounded or has bad grounding, the instrument should have a grounding alarm and corresponding prompts, and can not increase the pressure, to prevent harm to people and equipment (with ground protection, and there are Chinese warning and voice prompts. In special circumstances, when no test is required for reliable grounding, press the 75% function key to release the protection, which is convenient for the user to test in the field.)
Open circuit protection of internal voltage measurement circuit: If there is no protection when the internal voltage measuring resistor is open, the voltage measuring signal line is open, and the cable terminal is in poor contact, the instrument voltmeter does not indicate and the high voltage terminal has voltage, which may cause personal injury. Injury accident (with internal voltage measurement circuit open circuit protection, and Chinese alarm and voice prompts)
Dear Customer:
Thank you for your attention to our products. In addition to this product introduction, our company also introduces the vacuum tester, infrared thermometer, dielectric loss tester, high voltage test transformer, vacuum oil filter, high current generator, etc. If you are interested in our products, welcome to inquire. Thank you!
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