I found a few of these at one of those amazon returns bin stores. Used one for the battery mode inverter changeover circuit for a grid tie standby to emergency off grid solar power system. You are right about the intermittant contactors economized constant type contactors.❤
Thanks for this, very helpful in explaining this to people new to EVs/battery storage. It turns out to be quite a common question, thats why for my new hardware I designed a pwm stage with flyback diode to handle any type of contactor, with a 12V coil voltage. On that topic, you did not mention to be careful of the coil voltage as they can vary even though 12V is most common.
Thanks! that's really cool. and a good way to utilize different contactors. And your absolutely right! thank you for catching this. I should do a second video covering this and other details.
Non economized ones are designed for intermittent duty, the economized type are for safety interlock master enable or main power enable use. I used one of these to isolate the battery pack from an inverter in a solar power system that goes from grid tie to emergency backup power of select circuits if the power goes out. It runs in tandem with a time delayed transfer switch.❤
Closing, not latching, I think we reserve latching for mechanically latching relays that are mechanically bi-stable. So no current to hold either position.
For you diesel guys you're going to run into this on the fuel solenoid the fuel solenoid usually will have two wires coming out of it three wires two control wires one ground what are the control wires they're both 12 volt but one of them is wired with a higher current draw and then the other one has less current it's the hold contact because in the fuel solenoid relay you need more power to overcome the spring but once the spring is collapsed it doesn't take that much current to hold it and you've all figured that out when you get the wires backwards and you smoke the relay yep same thing
Excited for this build! Why do you make us wait so long lol
I found a few of these at one of those amazon returns bin stores. Used one for the battery mode inverter changeover circuit for a grid tie standby to emergency off grid solar power system. You are right about the intermittant contactors economized constant type contactors.❤
Thanks for this, very helpful in explaining this to people new to EVs/battery storage. It turns out to be quite a common question, thats why for my new hardware I designed a pwm stage with flyback diode to handle any type of contactor, with a 12V coil voltage. On that topic, you did not mention to be careful of the coil voltage as they can vary even though 12V is most common.
Thanks! that's really cool. and a good way to utilize different contactors. And your absolutely right! thank you for catching this. I should do a second video covering this and other details.
@@J5Jonny5 I know where you can get a working example that generates a spark.
The Economizer... Sounds like a good title for a horror movie.
thank you
Lovely explanation. I know which I prefer.
Have you just destroyed the market for non-economized devices?
Non economized ones are designed for intermittent duty, the economized type are for safety interlock master enable or main power enable use. I used one of these to isolate the battery pack from an inverter in a solar power system that goes from grid tie to emergency backup power of select circuits if the power goes out. It runs in tandem with a time delayed transfer switch.❤
Closing, not latching, I think we reserve latching for mechanically latching relays that are mechanically bi-stable. So no current to hold either position.
Thanks!
Of course!
What is the pricing difference between the 2 contactor types?
I would have to look. I have links to the contactors I used here in the description below.
Non economised contactor used $20.00
For you diesel guys you're going to run into this on the fuel solenoid the fuel solenoid usually will have two wires coming out of it three wires two control wires one ground what are the control wires they're both 12 volt but one of them is wired with a higher current draw and then the other one has less current it's the hold contact because in the fuel solenoid relay you need more power to overcome the spring but once the spring is collapsed it doesn't take that much current to hold it and you've all figured that out when you get the wires backwards and you smoke the relay yep same thing