Thytronic XMR-P 4l+4V User Manual

262
FUNCTION CHARACTERISTICS
I
ED>>>>
)
AND
- The residual voltage (U
E
or U
EC
) fundamental component overcomes the threshold (U
ED>
, U
ED>>
,
U
ED>>>
, U
ED>>>>
),
while in the “Insens-Zone=ON” operating mode:
- The residual current (I
E2
) fundamental component overcomes the threshold (I
ED>
, I
ED>>
, I
ED>>>
,
I
ED>>>>
)
AND
- The residual current (I
E2
) fundamental component overcomes the threshold (M∙U
ED>
, M∙U
ED>>
,
M∙U
ED>>>
, M∙U
ED>>>>
)
OR
- The residual current (I
E2
) fundamental component overcomes the threshold (M∙I
ED>
, M∙I
ED>>
,
M∙I
ED>>>
, M∙I
ED>>>>
)
AND
The residual voltage (U
E
or U
EC
) fundamental component overcomes the threshold (U
ED>
, U
ED>>
,
U
ED>>>
, U
ED>>>>
).
B) The residual current phasor (I
E2
) is located inside the angular sector defined by own characteri-
stic angle (β
E
>, β
E
>>, β
E
>>>, β
E
>>>>) and half operating sector (Θ
E
>, Θ
E
>>, Θ
E
>>>, Θ
E
>>>>), that is
the -β
E
≤ (Θ
E
-Φ
E
) ≤ +β
E
condition is fulfilled.
If the operation mode is switched to “not directional” (by the 74VT function), the start of any 67N
threshold becomes active when the following is complied:
- The residual current (I
E
) fundamental component overcomes the threshold (I
ED>
, I
ED>>
, I
ED>>>
,
I
ED>>>>
)
The operating mode (Mode67N), the residual voltage measurement type (Type67N), the insensi-
bility zone enabling (Insens-Zone), the threshold multiplier for the insensibility zone (M) and the
operation from 74VT (74VText67N) may be selected by setting the concerning parameters, located
inside the Set\Profile A (or B)\Directional earth fault overcurrent-67N \ Common configuration menu.
The settable operating mode is I (module) or I*cos (projection).
Projection
If the projection principle and he operation mode is not switched to “not directional” (by the 74VT
function), the start of any 67N threshold becomes active when the following C) condition is active:
C) in the “Insens-Zone=OFF” operating mode:
- Residual current projection on the characteristic axis I
E2
∙cos(Φ
E
-Θ
E
) > 0
AND
- The residual current projection on the characteristic axis I
E2
∙cos(Φ
E
-Θ
E
) overcomes the threshold
(I
ED>
, I
ED>>
, I
ED>>>
, I
ED>>>>
)
AND
- The residual voltage (U
E
or U
EC
) fundamental component overcomes the threshold (U
ED>
, U
ED>>
,
U
ED>>>
, U
ED>>>>
).
AND
The residual current phasor (I
E2
) is located inside the angular sector defined by own characteristic
angle (β
E
>, β
E
>>, β
E
>>>, β
E
>>>>) and half operating sector (Θ
E
>, Θ
E
>>, Θ
E
>>>, Θ
E
>>>>), that is the
-β
E
≤ (Θ
E
-Φ
E
) ≤ +β
E
condition is fulfilled.
[1]
While in the “Insens-Zone=ON” operating mode:
- Residual current projection on the characteristic axis I
E2
∙cos(Φ
E
-Θ
E
) > 0
AND
- The residual current projection on the characteristic axis I
E2
∙cos(Φ
E
-Θ
E
) overcomes the threshold
(I
ED>
, I
ED>>
, I
ED>>>
, I
ED>>>>
)
AND
- The residual voltage (U
E
or U
EC
) fundamental component overcomes the threshold (M∙U
ED>
,
M∙U
ED>>
, M∙U
ED>>>
, M∙U
ED>>>>
)
OR
The residual current projection on the characteristic axis I
E
∙cos(Φ
E
-Θ
E
) overcomes the threshold
(M∙I
ED>
, M∙I
ED>>
, M∙I
ED>>>
, M∙I
ED>>>>
)
AND
- The residual voltage (U
E
or U
EC
) fundamental component overcomes the threshold (U
ED>
, U
ED>>
,
U
ED>>>
, U
ED>>>>
).
AND
The residual current phasor (I
E
) is located inside the angular sector defined by own characteristic
angle (β
E
>, β
E
>>, β
E
>>>, β
E
>>>>) and half operating sector (Θ
E
>, Θ
E
>>, Θ
E
>>>, Θ
E
>>>>), that is the
-β
E
≤ (Θ
E
-Φ
E
) ≤ +β
E
condition is fulfilled.
[2]
Note 1 For each threshold the projection of the residual current phasor on the characteristic axis is: I
E2
cos(Θ
E
>-Φ
E
), I
E2
cos(Θ
E
>>-Φ
E
), I
E2
cos(Θ
E
>>>-
Φ
E
), I
E2
cos(Θ
E
>>>>-Φ
E
) when “direct” residual voltage is selected (U
E
), or
I
E2
cos(Θ
E
>-Φ
EC
), I
E2
cos(Θ
E
>>-Φ
EC
), I
E2
cos(Θ
E
>>>-Φ
EC
), I
E2
cos(Θ
E
>>>>-Φ
EC
) when “calculated” residual voltage is selected (U
EC
).
The Θ
E
, β
E
and Φ
EC
symbols are not used inside the Thyvisor and MMI menus.
Note 2 For each threshold the projection of the residual current phasor on the characteristic axis is: I
E2
cos(Θ
E
>-Φ
E
), I
E2
cos(Θ
E
>>-Φ
E
), I
E2
cos(Θ
E
>>>-
Φ
E
), I
E2
cos(Θ
E
>>>>-Φ
E
) when “direct” residual voltage is selected (U
E
), or
I
E2
cos(Θ
E
>-Φ
EC
), I
E2
cos(Θ
E
>>-Φ
EC
), I
E2
cos(Θ
E
>>>-Φ
EC
), I
E2
cos(Θ
E
>>>>-Φ
EC
) when “calculated” residual voltage is selected (U
EC
).
The Θ
E
, β
E
and Φ
EC
symbols are not used inside the Thyvisor and MMI menus.
XMR-D EQUIPMENT MANUAL
Ed. 2.9 - 02/2021

Thytronic XMR-P 4l+4V Specifications

General

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