HIGH-VOLTAGE STAND OF LIGHTNING DISCHARGE AND TEST METHOD FOR LIGHTNING EFFECT Russian patent published in 2025 - IPC H03K3/53 

FIELD: testing.

SUBSTANCE: invention relates to test equipment and can be used in assessing lightning effects on aircraft. High-voltage stand of lightning discharge includes high-voltage generators of current pulses, capacitors, resistors, switch-dischargers, control unit, electrodes, buses, chargers with transformers, high-voltage valves and protective resistors. High-voltage outputs of chargers are connected through two closed contacts of switches to high-voltage inputs of capacitive energy accumulators, and low-voltage parts of chargers are connected to common bus and low-voltage input of capacitors. High-voltage inputs of capacitors are connected through resistors to the first contacts of the first commutators, the second contacts of which are connected to the first contacts of the second commutators and input contacts of inductors, the second contacts of the second commutators are connected to the common bus. Output contacts of inductors are connected through first resistors to input contact of test object, output contact of test object is connected to common bus. Capacitors, resistors and inductors corresponding to parameters of load components by current value in time are pre-selected and installed on high-voltage generators of current pulses, and during lightning tests, capacitors are charged and current pulse generators are successively switched on for discharge, acting on the test object with parameters of corresponding components. With closed switches and open switches, capacitive energy accumulators are charged. By simulating the component, the key of the first current pulse generator is opened, the first contactor is closed and the capacitive energy storage unit is discharged to inductance, after reaching the current maximum, the second contactor is closed and the inductance is discharged to the load from the resistor and the test object, creating the required current pulse duration. Parameters of all components of action on the test object are continuously recorded on an oscilloscope.

EFFECT: high accuracy of simulating a lightning discharge current pulse.

2 cl, 1 dwg