Ads
related to: thyristor surge protection devices
Search results
Results From The WOW.Com Content Network
Surge Protection Device (SPD) for installation in a low-voltage distribution board. A surge protector (or spike suppressor, surge suppressor, surge diverter, [1] surge protection device (SPD), transient voltage suppressor (TVS) or transient voltage surge suppressor (TVSS)) is an appliance or device intended to protect electrical devices in alternating current (AC) circuits from voltage spikes ...
Trisil is a trade name for a thyristor surge protection device, an electronic component designed to protect electronic circuits against overvoltage. Unlike a transient voltage suppression diodes , such as Transil, a Trisil acts as a crowbar device, switching ON when the voltage on it exceeds its breakover voltage.
A crowbar circuit is an electrical circuit used for preventing an overvoltage or surge condition of a power supply unit from damaging the circuits attached to the power supply. It operates by putting a short circuit or low resistance path across the voltage output (V o ), like dropping a crowbar across the output terminals of the power supply.
The device operates by shunting excess current when the induced voltage exceeds the avalanche breakdown potential. It is a clamping device, suppressing all overvoltages above its breakdown voltage. It automatically resets when the overvoltage goes away, but absorbs much more of the transient energy internally than a similarly rated crowbar device.
Similar devices, though usually not functionally interchangeable with SIDACs, are the thyristor surge protection device (TSPD) sold under trademarks like Trisil by STMicroelectronics and SIDACtor and its predecessor Surgector by Littelfuse. These are designed to tolerate large surge currents for the suppression of overvoltage transients.
A snubber is a device used to suppress ... preventing the erroneous turn-on of the thyristor; ... (TVS), or surge protection devices (SPD). Transient voltage ...