What is the introduction of DC high voltage generator? What is the DC high voltage generator mainly

The new DC high-voltage generator provides a DC high-voltage source and is specially designed to detect the electrical insulation strength and leakage current of power devices. The intelligent DC high voltage generator is based on the requirements of the Chinese industry standard ZBF 24003-90 "General Technical Conditions for Portable DC High Voltage Generators", the latest research, design and manufacturing, is a new era of products, intelligent DC high voltage generators have a variety of protection functions, such as: low voltage overcurrent, low voltage overvoltage, high voltage overcurrent, high voltage overvoltage, zero protection, non-grounding protection, etc.

Fault sampling adopts a special sensor, the action time is nanosecond, the optical isolation element is also nanosecond, and the action time is generally 10 microseconds, which can completely shut down the DC main circuit, so as to protect the instrument from damage to the greatest extent.

ZGS series DC high-voltage generator adopts high-frequency voltage doubling circuit, applies advanced PWM high-frequency pulse-width modulation technology, closed-loop adjustment, and adopts large voltage feedback, so that the voltage stability is greatly improved. The use of high-power IGBT devices and drive technology with superior performance, and according to the theory of electromagnetic compatibility, the use of special shielding, isolation and grounding measures. The DC high-voltage generator is high-quality, portable, and can withstand rated voltage discharge without damage.

It has the characteristics of large output power and small size, and has reliable over-voltage, over-current and zero closing protection functions, with double voltage switching function. It uses new technologies, new materials and new devices, with the characteristics of large output power, small size and light weight, reliable over-voltage, over-current and zero closing protection functions, with double voltage latching function, and equipped with time relay, which can set up a timing sound alarm in the test. The whole instrument is easy to carry, easy to operate, safe and reliable.

It is mainly suitable for the power departments of electric power departments, industrial and mining, metallurgy, iron and steel and other enterprises to carry out DC withstand voltage test or DC leakage current test on high-voltage electrical equipment such as zinc oxide arresters, power cables, transformers, circuit breakers, generators, etc.

Scope of application: 1. Conductivity current test of valve-type arrester.

2. DC withstand voltage test and leakage current measurement of power transformer.

3. DC withstand voltage test and leakage current measurement of high-voltage cable (35 500kV and below).

4. The U1mA DC reference voltage test and the leakage current test of zinc oxide arrester.

The main uses of DC high voltage generators:

1. It is the first company to use computer control technology to control PWM pulse width modulation, measurement, protection and display, display and output DC high-voltage voltage, current, overvoltage setting, timing and protection information on the LCD display, and communicate with the computer with RS232 interface. The microcomputer high-voltage DC generator produced by Yangzhou Guoxi Electric is the first in the industry to adopt a sectional structure, which can be used for both high voltage level and lower voltage level, and keep its accuracy unchanged. Taking 100 200kV 2mA into two sections as an example, it can be used as 100kV 4mA in a single section, which can be used for DC high-voltage test of electrical equipment in 35kV and below systems, which can ensure the accuracy of measurement and avoid large horse-drawn trolleys; When the two sections are used, it can do 200kV 2ma

Use. It can be used for DC test of 220kV sectional, 110kV and below zinc oxide arrester and DC withstand voltage test of cross-linked cable. It truly achieves a dual-purpose machine, which greatly facilitates the use of on-site users.

2. The high-voltage DC generator pioneered the intelligent grounding poor protection and alarm function (poor grounding can not be boosted), the voltage measurement loop disconnection protection (the voltage measurement loop disconnection instrument cannot be boosted), and the emergency stop button, which greatly improves the safety of the operator in the operation process. The HVDC generator has a variety of protection functions, such as: low-voltage over-current, low-voltage over-voltage, high-voltage over-current, high-voltage overvoltage, zero protection, non-grounding protection, etc.

Fault sampling uses a special sensor, the action time is nanoseconds, and the optical isolation element is also nanoseconds, and the action time is generally 10 microseconds to completely shut down the DC main circuit. Through the nanosecond optical isolation element and the nanosecond analog switch, the whole process will cut off the push signal of the power amplifier circuit within 2 microseconds, so as to ensure that the power device will not be damaged in the case of output short circuit.

3. Using 30-50kHz high-frequency voltage doubling circuit, taking the lead in applying the latest PUM pulse width modulation technology and high-power IGBT devices, and according to the theory of electromagnetic compatibility, special shielding, isolation and grounding measures are adopted to make the DC high-voltage generator achieve high quality, which can withstand the rated voltage discharge without damaging the machine.

4. The high-voltage DC generator adopts large voltage feedback, which greatly improves the voltage stability, and the trigger button specially designed for the zinc oxide arrester test also increases the frequency to 30-50kHz, so that the volume and weight of the control box and the pressure doubling cylinder have been greatly reduced, and it is more convenient for on-site use.

It is mainly used for DC withstand voltage, and for the leakage of cables and lightning arresters.

DC high voltage generator is a new generation of portable high voltage testing instrument designed and manufactured according to China's new power industry standard DL high voltage test device general technical conditions Part 1: DC high voltage generator, which is specially used to detect the electrical insulation strength and leakage current of power devices.

This instrument adopts high-frequency voltage doubling circuit, applies new PWM pulse width modulation technology and voltage and current double closed-loop feedback technology to improve power regulation and load regulation, so that the voltage stability is high and the ripple is small. The use of imported high-power IGBT devices and their driving technology eliminates switching interference and realizes the high quality and portability of DC high-voltage generators. The imported high-frequency and high-voltage rectifier diode is selected to make the doubler cylinder more compact and lightweight, and improve the efficiency of the whole machine.

According to the EMI electromagnetic interference and EMC electromagnetic compatibility theory, shielding, isolation and grounding measures are adopted to improve the safety of the whole machine, and it can withstand the rated voltage discharge without damage. The instrument has complete protection functions, including zero protection, over-voltage protection, over-current protection, breakdown protection, and nanosecond special sensors are selected for the protection circuit, which acts quickly and reliably, effectively protecting the safety of personnel and equipment. The digital DIP switch is used for overvoltage setting, which is simple to operate and has high setting accuracy.

The intelligent high-precision function button is added, which is conducive to the testing of zinc oxide arrester.

This instrument adopts an integrated design scheme: the doubler cylinder and the host are placed in a chassis, combined with new technology and new devices, to achieve the advantages of small size, high power, light weight, convenient operation, safety and reliability, and high power output quality, which is an ideal test instrument for the high-voltage testing industry.

This instrument is suitable for electric power, railway, chemical, industrial and mining, metallurgy, steel and other departments to carry out DC withstand voltage test and leakage test on zinc oxide arrester, magnetic blowing arrester, power cable, transformer, generator and other equipment, and can also be used as electrostatic dust vacuum, spraying and other power supplies.

1. The volume of DC high-voltage BAI generator (also called DU AC high-voltage generator).

Zhi is smaller, lighter, more beautiful, DAO is more reliable, easier to operate and fully functional.

2. Manufactured using process technology, pulse train logic array modulation. High-power IGBT devices are used for phase ambiguity control. Thus it has higher output stability, less ripple and frequencies up to 100kHz.

3. Sturdy and durable.

4. Accuracy and precise measurement, the output voltage is adjusted by a single multiturn potentiometer, the step-up process is stable, the adjustment accuracy is high, the instrument has high-voltage terminals and low-voltage terminals to measure the leakage current, the high-voltage terminal uses a spherical shielded digital instrument display, and is not afraid of discharge impact, good anti-interference performance, suitable for on-site use.

5. The voltmeter on the box directly displays the voltage value added to the load test sample, and there is no need for an external voltage divider when using, and the wiring is simple and easy to operate.

6. Output, zero start, overvoltage, overcurrent, zero return, grounding protection, disconnection protection and other protection functions.

7. The DC high voltage generator has the function of 75, it is very convenient to measure the zinc oxide arrester, the instrument control box has the voltage switch function of 75, when the current rises to 1000ua, it will open the 75 of the button, at this time, the value displayed by the voltmeter and the ammeter is 75 of the data, press the knob back to zero, and then the trimming voltage knob back to zero, and immediately put the 75 ammonium button switch in the normal position, and then carry out other tests.

Respondent: Huatian Power.

It is used in the power department, power department of factories and mining enterprises, scientific research units, railways, chemical industries, power plants, etc. to carry out DC high-voltage tests on zinc oxide arresters, magnetic blowing arresters, power cables, generators, transformers, switchgears and other equipment, and is the most ideal replacement product in the new century.

1. What is a DC high voltage generator?

ZGF series high-frequency DC high-voltage generator is according to the requirements of China's industry standard ZBF 24003-90 "General Technical Conditions for Portable DC High Voltage Generator", newly developed and designed, is a new era of scientific and technological products - portable DC high-voltage generator, is suitable for the power sector, factory and mining enterprise power department, scientific research units, railways, chemical industry, power plants, etc., zinc oxide arrester, magnetic blowing arrester, power cable, generator, transformer, switch and other equipment DC high voltage test.

DC high voltage generators.

Second, the performance characteristics of DC high-voltage generator

The chassis adopts an aluminum alloy chassis.

It adopts an intermediate frequency voltage doubling circuit, and applies PWM pulse width modulation technology and high-power IGBT devices.

The large voltage feedback is adopted, the output voltage is stable, and the ripple coefficient is 3%.

Smooth voltage regulation of full scale, good voltage regulation accuracy, adjustment accuracy, stability of 1%, voltage and current error (word), current error (word).

The boost potentiometer has zero boost voltage.

Function button, convenient zinc oxide arrester test, accuracy (2% 2 words).

The overvoltage protection is set by drawing the code, which is clear at a glance and has an error of 2%.

The new material is used for doubling, which is lightweight and strong. The surface is coated with special insulating materials, with good electrical properties and strong moisture-proof ability.

ZGF products meet the technical requirements of DL, and have been tested by the Electrical Equipment Quality Inspection and Testing Center of the Ministry of Electric Power, and strictly implement the enterprise standard factory.

DC high-voltage generator is mainly suitable for power departments, industrial and mining, metallurgy, iron and steel and other enterprise power departments to carry out DC withstand voltage test or DC leakage current test on high-voltage electrical equipment such as zinc oxide arresters, power cables, transformers, circuit breakers, generators, etc.

Boost mode: automatic boost, manual boost. k and in do not need to be set for automatic testing. Such as: zinc oxide arrester automatic boost, 10kv cable jujube staged boost, etc.

DC high voltage generators.

Performance characteristics of DC high voltage generator:

The chassis adopts a portable case, which is easy to carry.

The AIPWM technology is used to adjust the linearity of PWM inaccuracy, and the accuracy has been greatly improved. Ripple coefficient .

AI automatic zinc oxide arrester and oil-immersed transformer measurement function. You can directly print the experiment report and save the experiment report, with accuracy. Keep it manual.

And the AI technology is used to set the over-voltage protection and over-current protection, which replaces the problem that the digital dial switch can only set the voltage value, but cannot set the current value and voltage drift. Errors

Full-scale smooth voltage regulation, voltage regulation accuracy, stability, electric Zen hood voltage current error.

It has the function of total time t1 and segment timing t2, and printing at any voltage and current.

The instrument adds a perpetual calendar and time function, and the experiment report has a time and date.

By: Sanxin Power

DC generator is a new generation of portable high voltage tester designed and manufactured according to China's new power industry standard DL High Voltage Test Device General Technical Specifications Part 1: DC High Voltage Generator, which is specially used to test the electrical dielectric strength and leakage current of power equipment.

The instrument adopts high-frequency voltage doubling circuit, applies new PWM pulse width modulation technology and voltage and current double closed-loop feedback technology, improves power supply regulation and load regulation, and makes the voltage stability high and ripple small. Imported high-power IGBT devices and their driving technology are used to eliminate switching interference and realize the high quality and portability of DC high-voltage generators. The imported high-frequency and high-voltage rectifier diode is selected to make the voltage doubler smaller and lighter, and improve the efficiency of the whole machine.

According to EMI electromagnetic interference and EMC electromagnetic compatibility theory, shielding, isolation and grounding measures are taken to improve the safety of the whole machine, and it can withstand the rated voltage discharge without damaging the posture and remaining damage. The instrument has a full range of protection functions, including zero protection, overvoltage protection, overcurrent protection and breakdown protection. The protection circuit adopts nanosecond-level special sensors, which act quickly and reliably, and effectively protect the safety of the person and equipment carrying the rolling witness.

The overvoltage setting adopts digital DIP switch, which is easy to operate and has high setting accuracy. The addition of intelligent high-precision function buttons is conducive to the testing of zinc oxide arresters.

The instrument adopts an integrated design scheme: the voltage doubler and the host are placed in a chassis, combined with new technology, new devices are selected, and it has the advantages of small size, large power, light weight, convenient operation, safety and reliability, and high power output quality, and is an ideal test instrument for the high-voltage testing industry.

This instrument is suitable for DC withstand voltage test and leakage test of zinc oxide arrester, magnetic arrester, power cable, transformer, generator and other equipment in electric power, railway, chemical industry, industrial and mining, metallurgical gold, iron and steel and other departments. It can also be used as a power source for electrostatic precipitators and sprays.