OVER CURRENT RELAY OCR SEG IWU N2-3 IWUN2-3

SPESIFIKASI PROTECTION RELAY SEG IWU N 2-3

Protection Relay SEG IWU N 2-3

Application
Under- and over-frequency supervision of single or three-phase systems.

Function
The unit BF1 is equipped with an independent over (f>) and under-frequency supervision (fThe measured frequency is continuously compared with the set reference values.
For frequency supervision the cycle duration is evaluated and so measuring is virtually independent on harmonics. 
To avoid tripping during normal operation due to interference voltages, a fixed measuring repetition is used.

Technical Data
rate voltage Un: 110V, 230V, 400 V AC
frequency range at 
50 Hz rated frequency                : 46 - 54 Hz
60 Hz rater frequency                 : 55,2 - 64,8 Hz
hysteresis                                      : 0,5% of nominal frequency
power consumption                    : 3,7 VA
thermal load carrying capacity  : continuously 1,3 x Un
returning time                              : 250 ms
minimum operating time           : 250 ms

Output relays:
max. breaking capacity ohm ic  : 250 V AC/120 W DC
inductive                                        : 500 V AC/75 W DC
rated current                                : 5 A
making current                            : 20 A

System data:
regulations                                    : VDE 0435 part 303
temperature range 
at storage and operation            : - 25 0C bis + 70 0C