Gas discharge tubes
Gas discharge tubes (GDT) are crowbar devices that present a short circuit when activated. Typically two and three terminal gas discharge tubes (GDT) are used in telecommunication lines to protect twisted pair cables against lightning discharge currents. Activated by relatively low voltage levels, GDTs can conduct high impulse and power currents without suffering damage. Impulse life and discharge current tests are used to characterise GDTs. Typical GDT test are made using impulse currents of various waveshapes up to 10kA.
selected products
Impulse current generator 10/350
10 / 350 us current impulse generator specially designed for testing Surge Protection Devices (SPD) with 2 or 3 terminals. Personnel safety is maintained through high voltage outputs separated from the control elements.
24 kA impulse current generator for GDTs
GDTs are crowbar devices presenting a near short circuit in conduction.Testing 2 terminal Gas Discharge Tube (GDT) components with high energy impulses is used to check the impulse current handling