triac circuit problem

[seyyah]

I have a triac circuit as shown in figure. The voltage comes to triac and then goes to a relay's open contact then to the load(a 3A single phase ac motor). I first open relay and then trigger the triac but as soon as i open the relay even the triac is in off state, the load gets some voltage for a very brief of time period and then it stops. How can i prevent this? How the voltage travels accross the triac? Through snubber? What are your opininions? Thanks.

 

[andre_luis]

The image you attached is with a poor quality, not possible to identify components.


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[tpetar]

I have a triac circuit as shown in figure. The voltage comes to triac and then goes to a relay's open contact then to the load(a 3A single phase ac motor). I first open relay and then trigger the triac but as soon as i open the relay even the triac is in off state, the load gets some voltage for a very brief of time period and then it stops. How can i prevent this? How the voltage travels accross the triac? Through snubber? What are your opininions? Thanks.

Remove connection between capacitor 100nF/630V and gate of triac, link only goes to neutral-relay side. Add resistor 10K between gate and neutral-relay. Try to increase 1,2K to 2,2K.

 

[seyyah]

100nF/630V is not connected to the gate the triac. Anyway i connect one side of the 100nF/630V to the load side instead of triac's main T1 (or relay's COM) terminal. Now that the capacitor is always online, the problem seems to gone. Thanks for the help.