Thytronic XMR-V 4V User Manual

FUNCTION CHARACTERISTICS
245
Two operating logic may be selected:
• One of three - 1/3; trip when the phase overcurrent function is active for at least one phase.
• Two of three - 2/3, trip when the phase overcurrent function is active for at least two phases.
The operating logic may be selected by setting the Logic67 parameter inside the Set \ Profile A (or
B) \ Directional phase overcurrent-67 \ Common configuration menu.
The settable logic mode is 1/3 (at least one current) or 2/3 (at least two currents).
VT supervision (74VT)
For all the four thresholds (I
PD>
, I
PD>>
, I
PD>>>
, I
PD>>>>
), the operating mode when the 74VT function is
active may be defined:
• OFF: no action are issued by 74VT.
• Block: all the four thresholds are blocked when the 74VT function is active.
• Not directional: all the four thresholds are switched from directional to not directional criteria
when the 74VT function is active.
The 74VT information may issued from internal 74VT function or from an external signal acquired by
means a binary input.
Operating characteristics of the phase directional overcurrent elements - 67 with projection operating mode (I∙cos)
char-F67-proiezione.ai
BUS
I
L1
I
L2
I
L3
U
L1
U
L2
U
L3
VOLTAGE INPUTS
CURRENT INPUTS
LINE
I
L3
U
L2
U
L3
U
L1
α3
U
12
U
12
I
L2
U
31
U
31
α2
U
L2
U
L3
U
L1
U
23
U
23
I
L1
α1
U
L2
U
L3
U
L1
I
Lx
∙COS(ThetaP>
-
α ) ≥ I
PD
>
I
Lx
∙COS(ThetaP>>
-
α ) ≥ I
PD
>>
I
Lx
∙COS(ThetaP>>>
-
α ) ≥ I
PD
>>>
I
Lx
∙COS(ThetaP>>>>
-
α ) ≥ I
PD
>>>>
I
PD threshold
I
L1,
I
L2,
I
L3
I
I∙cos
Mode67
XMR
Morsetti A3-A5-A7
Morsetti B1-B3-B5
L1 phase
L2 phase
L3 phase
Threshold:
(I
PD
>, I
PD
>>, I
PD
>>>, I
PD
>>>>)
Threshold:
(I
PD
>, I
PD
>>, I
PD
>>>, I
PD
>>>>)
Threshold:
(I
PD
>, I
PD
>>, I
PD
>>>, I
PD
>>>>)
Characteristic angle:
(ThetaP>, ThetaP>>,
ThetaP>>>, ThetaP>>>>)
Characteristic angle:
(ThetaP>, ThetaP>>,
ThetaP>>>, ThetaP>>>>)
Characteristic angle:
(ThetaP>, ThetaP>>,
ThetaP>>>, ThetaP>>>>)
Characteristic axis
Characteristic axis
Characteristic axis
Trip sector
Toward line
Trip sector
Toward line
Trip sector
Toward line
No trip sector
Toward busbar
No trip sector
Toward busbar
No trip sector
Toward busbar
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021

Thytronic XMR-V 4V Specifications

General

Brand	Thytronic
Model	XMR-V 4V
Category	Protection Device
Language	English