Thytronic XMR-V 4V - Page 222

222
FUNCTION CHARACTERISTICS
55S2.ai
State = ON ≡ Enable 55 element
CPhi< Enable
t
CPhi2
<
0T
≥1
t
CPhi2
<
StartCPhi2<
Trip CPhi2<
CB-State
CPhi2<ST-K
CPhi2<TR-K
CPhi1<TR-L
CPhi2<ST-L
T 0
t
ARM-CPhi
<
t
ARM-CPhi
<
CPhi2<
DIR
TRIPPING MATRIX (LED+RELAYS)
A
B
C
ON ≡ Enable CB acquisition
CB-55
t
ARM-CPhi<
CB State
CB-55
CB OPEN CB CLOSED
Start enable
CB OPEN
Output
t
ARM-CPhi<
Output t
ARM-CPhi<
t
t
ARM-CPhi<
&
ϕ
CPhi2<
cosϕ < CPhi2<
(0 ≤ ϕ ≤ π)
(Q > 0)
(Q < 0)
(Q qualsiasi)
&
Trip CPhi2<
Start CPhi2<
Binary input INx
T 0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
BLK1CPhi2<
&
&
&
Enable (ON≡Enable)
CPhi2<BLK1
Block1
Block1
Block1
A = lag
B = lead
C = lag/lead
CPhi2<
cosϕ < CPhi2<
(-π ≤ ϕ ≤ π)
CPhi2<
cosϕ < CPhi2<
(-π ≤ ϕ ≤ 0)
Minimum power factor - 55 Second element
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021