Comprehensive measuring module for power plant electric parameter monitor and measure.

 Protective Functions 
?  Three-stage over-current protection(it is subject to the criterion of complex voltage) 
?  Under-voltage memory over-current protection  
?  Under-voltage protection(it is subject to TV fault blocking ) 
?  Over-voltage protection 
?  Directional zero-sequence over-current protection 
?  Zero-sequence over-voltage protection (100% stator grounding protection) 
?  Loss of excitation protection 
?  Accelerated protection for loss of excitation 
?  Timing overload protection 
?  Inverse time symmetrical overload protection 
?  Inverse time negative sequence over-current protection 
?  Timing negative sequence over-current protection 
?  Reverse power over-current protection(it is subject to TV fault blocking ) 
?  Under frequency protection 
?  High frequency protection 
?  Break-off protection 
?  Breaker fault protection (with two-stage delay time) 
?  Two-stage impedance protection 
?  Generator rotor two points grounding protection 
?  Over-excitation protection 
?  TV / TA fault alarm 
?  Control circuit fault alarm 
?  Four programmable logic control outputs (PLC1,PLC2,PLC3,PLC4) 
12 digital inputs; 12 AC analog inputs; one DC analog input; 8 digital outputs 
Auxiliary power supply fault alarm for the unit 
Faults wave recording (the largest recording duration is 20s) 
Time-setting: software setting or GPS impulse setting 
The unit can memory the latest 40 alarm records after an auxiliary power supply fault. 
The unit has one RS-485 interface and one Ethernet interface to accomplish dual-network system.