As soon SW (connected at C1) pushed by user Relay 1 and 2 operate and existing NC became open . and follow below rules

1. Relay remain open even SW released

2. Even if power cut and resume relay keep maintain open connection ( it is ok if power is off relay resume to NC)

3. There should be some reset switch by pressing that relay will be normal to NC.

 

As English is clearly not your first language, what is?

Do you want the relays to operate when power is applied, or only when you push the switch, and then Latch open?

 

Does each relay only have one normally closed contact ? If you used relays with NO contacts. (One relay would need two NO contacts) then it would be very simple. The coils would be connected in parallel. One set of NO contacts would be connected in series with the coil and your push to break switch across the supply. Yo would also have a push to make button in parallel with this set of NO contacts. This is the reset button. When power was applied to the circuit the relays would be de energised so there would be no path through the NO contacts. When the reset button was pressed the relays would latch in. If you pressed your NC button the relays would drop out causing the NO contacts to be open.

Les.

 

As English is clearly not your first language, what is?

Do you want the relays to operate when power is applied, or only when you push the switch, and then Latch open?

Thanx for your response

Initially Relay will NOT operate (no current in coil) when power applied to circuitry . As I said when SW (switch) pressed Relay should operate. And maintain the rules as I said in original draft.

 

Does each relay only have one normally closed contact ? If you used relays with NO contacts. (One relay would need two NO contacts) then it would be very simple. The coils would be connected in parallel. One set of NO contacts would be connected in series with the coil and your push to break switch across the supply. Yo would also have a push to make button in parallel with this set of NO contacts. This is the reset button. When power was applied to the circuit the relays would be de energized so there would be no path through the NO contacts. When the reset button was pressed the relays would latch in. If you pressed your NC button the relays would drop out causing the NO contacts to be open.

Les.

Thanx for your message
Can you please help to create circuit in paper and share a pic with me , this will really help to understand .
Kindly note my two condition must be meet

 

Hmmm...sounds like the circuit needs either an impulse (latching) relay or a mag latch relay...

impulse relay-
power on - no action
1st push of button - latch on
power cut - remains latched
2nd push of button - latch off

Mag latch relay is same result but must reverse coil polarity to toggle state.

 

My suggested method would provide the function of the contacts that you specify BUT you want the relay energised for the output contacts to be open. Have you considered the fact that with the way you want it to work that when power is first applied that the relays will not be energised so the contacts will be closed ontil some extra circuit has time to cause the relays to close. If you describe the purpose of this circuit it will help us understand why you need the relays to work the opposite way that a normal NVR (No volt release) switch opperates.

Les.

 

Since the relay needs to maintain the normally closed contact as open even without power you need a latching style relay, where the contacts are held mechanically.

This does open the question how do you know what the initial power on point is? You can push the button and walk away for a year or more and the relay will still remember where it was when last set.