FUNCTION CHARACTERISTICS
72
NA30 - Manual - 04 - 2022
I
E
I
E
I
E
tE
>>
def
IECLP>>
def
IE>>
def
IECLP>>Mode
tECLP>>
tE
>>RES
IE>> Enable
tE
>>>
def
IECLP>>>
def
IE>>>
def
IECLP>>>Mode
tECLP>>>
tE
>>>RES
IE>>> Enable
tE
>
def
IECLP>
def
IE>
def
tE
>
inv
IECLP>
inv
IE>
inv
IE>Curve
IECLP>Mode
tECLP>
tE
>RES
IE> Enable
all-F50N-51N.ai
General logic diagram of the residual overcurrent elements - 50N/51N
≥
IE>> inhibition
BLK1IE>>>
IE>>>BF
IE>>> Element
Start IE>>>
Start IE>>>
Start IE>>>
Trip IE>>>
Trip IE>>>
&
IE>> disbyIE>>>
&
IE>>>BLK2IN
&
IE> disbyIE>>>
BLK1IE>>
IE>> Element
BLK2OUT
Start IE>>
Start IE>>
Trip IE>>
&
IE> disbyIE>>
&
IE>>BLK1
&
IE>>BLK2IN
IE> inhibition
Block1
BLK1IE>
CLPIE>
CLPIE>>
CLPIE>>>
IE> Element
BLK2OUT
BLK4OUT
BLK4OUT
BLK2INIE>
BLK2INIE>>
Start IE>
Trip IE>
&
IE>BLK1
Block2
&
IE>BLK2IN
Start I2ndh>
&
IE>2ndh-REST
IE>BLK2OUT
Start I2ndh>
&
IE>>2ndh-REST
Start I2ndh>
&
IE>>>2ndh-REST
&
IE>>>BF
IE>>BF
IE>>
Trip &
IE>>BF
IE>BF
Trip I>
&
IE>BF
Start IE> &
IE>>BLK2OUT
Start IE>> &
BLK2OUT
IE>>>BLK2OUT
Start IE>>> &
IE>BLK4
Start IE> &
IE>>BLK4
Start IE>> &
BLK4OUT
IE>>>BLK4
Start IE>>> &
Block1
Block2
&
IE>>>BLK1
Block1
Block2
Start I>
&
Start IE>>
&
Start IE>>>
&
Start IE>>
&
BLK2INIE>>>
Start IE>>>
&
Start I>
&