| ??? 03/24/07 19:48 Read: times Msg Score: +1 +1 Good Answer/Helpful |
#135801 - Protecting a triac Responding to: ???'s previous message |
Hello Jon
I think taht the primary way of protecting a triac is overrating. Stageligtning dimmercircuits are often made with triacs rated for 800V and 50A when used in a std. 230V 10A circuit - rated for aprox. 2 kW load. The short circuit protection was 5x20 mm fuses - these days its often dinrail automatic fuses as used in dommestic wirring. And its quite rare to change a triac in such a unit. So try with a 10A 600V triac next time. Per |
| Topic | Author | Date |
| Protecting a Triac | 01/01/70 00:00 | |
| Bigger triac | 01/01/70 00:00 | |
| Snubber, mains filter, varistor? | 01/01/70 00:00 | |
| Assymetry | 01/01/70 00:00 | |
| Snubber ? | 01/01/70 00:00 | |
| RE: Snubber | 01/01/70 00:00 | |
| Protecting a triac | 01/01/70 00:00 | |
| switch at zero crossing? | 01/01/70 00:00 | |
| Zero crossing | 01/01/70 00:00 | |
| Is it back EMF or short circuit | 01/01/70 00:00 | |
| Polyswitches | 01/01/70 00:00 | |
| Thermal properties aside | 01/01/70 00:00 | |
| Why bother ? | 01/01/70 00:00 | |
| I vote for overrating too | 01/01/70 00:00 | |
| Thanks | 01/01/70 00:00 | |
Not "over" just proper | 01/01/70 00:00 |