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Intelligence-Embedded Devices... more than Protection Relays

 

 

 

 

 

 

 

 
 

 
 

 

Application
The relay type NA70 can be typically used in radial MV and LV networks as feeder or power transformer protection when automatic reclosing is required.

Protective functions
49 - Thermal image
50/51 - Phase overcurrent
50N/51N - Residual overcurrent
59N - Residual overvoltage
67N - Directional ground fault
79 - Automatic recloser
bf - Circuit breaker failure
 
   

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