Search found 3 matches

by Chad
Wed Mar 11, 2015 1:06 am
Forum: Wiring, Electrical, Relays and Sensors
Topic: Can PWM be used to avoid tripping circuit breakers?
Replies: 6
Views: 4929

Re: Can PWM be used to avoid tripping circuit breakers?

Yes I think you're right - I've hunted around on the online support some more and found that the minimum ON time is 0.1 second, so then it's just a question of how responsive the circuit breaker is I guess... You're right though - this approach would create the possibility of accidentally turning it...
by Chad
Tue Mar 10, 2015 12:35 pm
Forum: Wiring, Electrical, Relays and Sensors
Topic: Can PWM be used to avoid tripping circuit breakers?
Replies: 6
Views: 4929

Re: Can PWM be used to avoid tripping circuit breakers?

Yeah, that's why I'm asking - obviously if for example they are on for 2 seconds then off for 2 seconds it's without a doubt going to overload the breaker, but if the PWM is sufficiently rapid then the load will in effect become smoothed out to an average load. The question then is how often such sw...
by Chad
Tue Mar 10, 2015 3:44 am
Forum: Wiring, Electrical, Relays and Sensors
Topic: Can PWM be used to avoid tripping circuit breakers?
Replies: 6
Views: 4929

Can PWM be used to avoid tripping circuit breakers?

Hi, I'd like to install heating elements with excess wattage, then run them at a lower duty cycle in order to avoid scorching of wort. For example, I would like to run 2x5500 W elements on a 25A circuit breaker, but use a duty cycle of only 40%. Obviously run at full capacity these two elements will...