Thytronic NC20 User Manual

59
NC2 0 - Manual - 01 - 2015
FUNCTION CHARACTERISTICS
Fun_46_S1.ai
I
2
RESET
t
2>def
0T
≥1
Start I2>
Trip I2>
CB-State
ON≡Inhibit (from I2>>element)
ON≡Enable I2> unbalance current element
(Pickup within CLP)
(Pickup outside CLP)
I2>inhibition
&
T0
t
2CLP>>
I2CLP>Mode
I
2CLP >def
t
2CLP>
TRIPPING MATRIX (LED+RELAYS)
A
B
C
A =“1”A =“0 or OFF”
Output
t
2CLP>>
I2> Enable
t
2CLP>
CB State CB OPEN CB CLOSED CB OPEN
Output t
2CLP>>
t
0.1 s
HIGH THRESHOLD/
BLOCK
LOW THRESHOLD/
UNBLOCK
HIGH THRESHOLD/
BLOCK
A = ON - Change setting
B = OFF
C = ON - Element blocking
I2>ALTR-K
I2>ALTR-L
I2>ST-L
I2>ST-K
≥1
CLP I2>
I
2
≥ I
2
>
def
I
2
>
def
I
2
≥ I
2CLP
>
def
t
2>def
Phase unbalance current (46) - first element logic diagram (I2>)
Block1, Block2
I2> element (46) block diagram

Thytronic NC20 Specifications

General

Brand	Thytronic
Model	NC20
Category	Power distribution unit
Language	English