Annuciator Alarm Panel

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Budhi.Rahardjo

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Dear all,

Could anybody inform me how many alarms should be annunciated from and what type Alarm sound should provided for an Oil Immersed Transformer Based on Standard such as NEC?

Regards,

Budhi Rahardjo
 
Seems like a Sonalert would do the trick or maybe something from Edwards if you want to mount it on a 4-square. Anything that makes noise, really, and is distinctive from all the other alarms that might exist within earshot.

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Xfmr Alarms

Xfmr Alarms

NEC does not mandage alarms. Good practice does. Typical oil-immersed transformer devices and alarms include:

49T - winding temperature alarm
26Q - oil temperature alarm
63SP - sudden pressure trip
71Q - low oil level alarm
63P - pressure relief alarm
27 - loss of AC or DC power

additional alarms will be transformer specific.
 
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