The NAIVG series fully automatic lightning impulse voltage generator adopts a control system based on PLC technology to provide various controls for the impulse voltage generator, fully meeting the various control functions of impulse testing. The control system consists of two parts: the control cabinet (with auxiliary operating unit) and the main operating unit. The control cabinet is installed next to the DC charging power supply at the bottom of the generator, and the main operating unit is installed in the control room. The two are connected by two core optical cables, and their control connections are shown in the following figure.

The main measurement and control functions of the control system are as follows

Measurement display quantity:

DC charging voltage

Transformer primary current

Generator body ball gap distance

Status display quantity:

The on-off status of the main power contactor

Switching status of grounding device

Triggering state of the gap between the cow launcher and the ball

Generator charging voltage polarity status

Control:

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.

The distance between the ignition ball gap and the cutoff ball gap can be manually and automatically adjusted, and displayed on the LCD panel.

A truncated trigger pulse with adjustable delay and a feedback system triggered by generator ignition.

By using a function controlled constant current charging method, the stability of the charging voltage can reach 0.5%.

The LCD panel can indicate the charging voltage and charging process of the impact generator with an accuracy of 1%.

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 ignition pulses

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:

Overcurrent protection

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,