1、 ProductOverview：
1. The impulse voltage test is one of the basic items of high-voltage testing for power equipment. After the design, manufacturing, and repair of power equipment, impulse testing is required to verify or inspect. Therefore, impulse voltage testing equipment has a wide range of applications, and different specifications of impulse testing equipment can be seen in high-voltage testing laboratories in factories, research institutions, and universities.
2. MHCJ-HseriesImpulse voltage generatorIt is an intelligent control and detection system designed specifically for the high-voltage impact generator produced by our company. It adopts programmable controllers and computer technology in technology, and all control and measurement functions are automatically implemented, greatly simplifying the system composition and greatly improving the reliability of the system. This greatly enhances the safety of the system in high-voltage and high current tests, avoiding the potential harm of high-voltage discharge transient processes to the equipment. The unique operating interface has good
3. Good human-machine dialogue function, easy and simple operation process, with intelligent characteristics.
IISystem features:
adoptPLCProgrammable controller technology enables intelligent automatic control and measurement of control systems with ultra miniaturization and high reliability performance; Cooperating with our company's digital measurement and control system, it is very convenient to connect with computers to achieve intelligent automatic control, measurement, and management.
The integrated design makes the system simpler, safer, and more durable.
All key components and panels are made of high-quality imported components, which are reliable in quality, luxurious in appearance, and easy to operate.
The operation interface adopts a LCD screen, which can be flexibly programmed and upgraded with control software. The interface has a visual prompt function, which enables human-machine dialogue, easy operation, and is not prone to errors.
It has various functions such as control, measurement, protection, interlocking, alarm, and prompt, which can effectively protect personal and system safety, and can achieve automatic control, program control, and expandable functions.
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Users can freely set and save experimental parameters Flexible and convenient, the system can also automatically remember various states and settings of the current experiment. When the experiment is not completed, the next time the system is started, it can automatically continue the previous incomplete experiment.
IIITechnical Indicators:
Pulse output parameters：
Nominal impulse voltage: 10KV-800KV
Voltage waveform:1.2us±30% /50us±20%
Experimental setting parameters
Effective test voltage:3-800KV; (limit value)
Impact test count: 1～9999；
Counter setting: 1～9999；
Charging voltage: 3.0～800.0kV；
Charging time: Setting range 10～180s Setting resolution1s
Grounding resistance: ＜0.5Ω
environmental conditions
MHCJ-HseriesThe impulse voltage generator should be used in the following environments:
temperature-10°C -40°C
Air humidity: 20% - 80 %RH(No condensation)
Air pressure: 86 kPa - 106 kPa
MHCJ-Hseriesimpulse voltagetesting systemCannot be directly exposed to solar radiation, water, dirty and dusty environments, or excessive vibrations.
fourControl system：
Adopting based onPLCThe control system of the technology provides various controls for the impulse voltage generator, fully meeting the various control functions of the impulse test. The control system consists of two parts: the control cabinet and the main operating unit：
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Technical parameters of control system：
Charging voltage: setting range0800.0kV
scope of work2.0~800.0kV
Setting deviation≤±1%
Instability≤±1%
Setting resolution 0.1kV
Charging polarity: positive or negative switchable
Charging time: Setting range10~180s
Setting resolution1s
Alarm delay2s
Pressure application frequency: setting range1~999
Protection setting: overcurrent protection value Configurable
Overvoltage protection value Configurable
Dynamic charging protection optional
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The main measurement and control functions of the control system are as follows:
System status display:
DC charging voltage
Charging time progress
The on-off status of the main power contactor
Switching status of grounding device
Trigger state of generator ball gap
Generator charging voltage polarity status
control System:
The control function has manual, automatic, and program control functions, and each level of function is relatively independent.
Adopting thyristor voltage regulation method and equipped with charging voltage feedback measurement system.
By using a function controlled constant current charging method, the stability of the charging voltage can reach0.5%.
The LCD panel can indicate the charging voltage and charging process of the impact generator, with an accuracy of1%.
Charging voltage and charging time can be directly input from the LCD panel.
Equipped with abnormal charging protection function, it can automatically or manually trigger signals
Indication of the working status of the impact generator, such as self ignition, non triggering, abnormal charging, stable charging, etc.
Grounding and grounding release control of the equipment body and charging part.
The charging voltage polarity can be automatically switched through the buttons on the controller
The charging process that can automatically or manually control the charging voltage
The alarm bell can sound automatically or manually to sound an alarm
Protection and interlocking:
overvoltage protection
Abnormal charging protection
Door switch interlock
Grounding organization chain
Polarity conversion chain
Operation tips:
Equipped with various operation prompt screens, corresponding prompt screens will pop up when the system encounters errors or improper operations.
China Cable Testing Center - Installation Site (400KV/30KJ)
Hunan Xiangtan Power Supply Company Maintenance Center - Debugging and Installation
