jayachar88
Member level 3
Hi,
In my search so far, I've come accross the following 3 technologies for sensing presence / absence of AC mains (220-240V) current.
1. Hall Effect sensors
2. Current Shunt sensors
3. Current Transformer sensors
My need is not to measure (as in metering/quantitative measurement), but only presence/absence of AC current, given whatever load (domestic, but say upto 4KVA). So which one might be the recommended ? All other things being equal, least cost, ability to miniaturize, and low power dissipation are other objectives, in that order.
If there are specific makes/models P/Ns, esply available in India, would like recommendations.
Also, my intent is to use 433/315MHz ASK RF comm. between the current sensor and main controller. Could I expect some RF interference issues in wiring up such a sensor, and if so, what could I do to prevent it.
thanks,
jay.
In my search so far, I've come accross the following 3 technologies for sensing presence / absence of AC mains (220-240V) current.
1. Hall Effect sensors
2. Current Shunt sensors
3. Current Transformer sensors
My need is not to measure (as in metering/quantitative measurement), but only presence/absence of AC current, given whatever load (domestic, but say upto 4KVA). So which one might be the recommended ? All other things being equal, least cost, ability to miniaturize, and low power dissipation are other objectives, in that order.
If there are specific makes/models P/Ns, esply available in India, would like recommendations.
Also, my intent is to use 433/315MHz ASK RF comm. between the current sensor and main controller. Could I expect some RF interference issues in wiring up such a sensor, and if so, what could I do to prevent it.
thanks,
jay.
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