sandbox related question RC-suppressor for a AC 230V coil-relay
StefanL38
Posts: 2,292
Hello,
I'm not very often outside the propeller-forum.
I just recognized that there is no sandbox-forum anymore.
This forums says it is
Topics related to the use of Parallax products but not specifically addressed by an individual forum.
Anyway I would like to ask what are typical values for a RC-suppressor build out of a resistor and a capacitor. I have to replace a relay where the coil (not the switching-contacts) is driven by 230V AC.
The ohm-resistance of this coil is 31 kOhm.
On the old relay is a small schematic.
capacitor and resistor are connected in serial.
One wire of the capacitor is connected to the left wire of the coil
One wire of the resistor is connected to the other wire of the coil
meaning the RC-combination is parallel to the coil.
what will be the difference if I use the new relay without the RC-components?
does this cause high voltage peaks if the driving voltage towards the coil is switched of?
I don't know if the relay is driven by a TRIAC or a thyristor.
If there are voltage-peaks would they damage the triac or thyristor of no RC-supressor is connected?
All kinds of hints are much apreciated
best regards
Stefan
I'm not very often outside the propeller-forum.
I just recognized that there is no sandbox-forum anymore.
This forums says it is
Topics related to the use of Parallax products but not specifically addressed by an individual forum.
Anyway I would like to ask what are typical values for a RC-suppressor build out of a resistor and a capacitor. I have to replace a relay where the coil (not the switching-contacts) is driven by 230V AC.
The ohm-resistance of this coil is 31 kOhm.
On the old relay is a small schematic.
---X-------coil-------X---- I-Cap---resistor---I
capacitor and resistor are connected in serial.
One wire of the capacitor is connected to the left wire of the coil
One wire of the resistor is connected to the other wire of the coil
meaning the RC-combination is parallel to the coil.
what will be the difference if I use the new relay without the RC-components?
does this cause high voltage peaks if the driving voltage towards the coil is switched of?
I don't know if the relay is driven by a TRIAC or a thyristor.
If there are voltage-peaks would they damage the triac or thyristor of no RC-supressor is connected?
All kinds of hints are much apreciated
best regards
Stefan
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