Thytronic Pro-N NVA100X-D Manual Download

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112

NVA100X-D - Manual - 02 - 2016

FUNCTION CHARACTERISTICS

If the CLP function (Cold Load Pick-up) is enabled for element blocking, the selected threshold may
be blocked for an adjustable time interval, starting from the starting control criterion (circuit breaker
closure or

RUN

threshold).

This operating mode may be select by setting

ON-Element blocking

the

I2CLP> Mode

and/or

I2CLP>> Mode

parameters.

If the CLP function (Cold Load Pick-up) is enabled for threshold change, the selected threshold may
be changed for an adjustable time interval, starting from the starting control criterion (circuit breaker
closure or

RUN

threshold).

This operating mode may be select by setting

ON-Change setting

the

I2CLP> Mode

and/or

I2CLP>> Mode

parameters, whereas the operating thresholds within the CLP may be adjust-

ed inside the

Set \ Proﬁ le A(or B) \ Negative sequence overcurrent - 46M \

I2> Element

I2>> Ele-

ment) \ Deﬁ nite time (Inverse time)

menus.

For both operating modes the CLP Activation time parameters (

t2CLP>, t2CLP>>

) may be ad-

justed inside the

Set \ Proﬁ le A(or B) \ Negative sequence overcurrent - 46M \

I2> Element

(

I2>>

Element) \ Setpoints

menus.

Starting control

If the

CLP Source

parameter is set to

IRUN

and the maximum value of phase currents is lower than

0.1

, the protection is blocked off or the threshold is changed depending on the

I2CLP> Mode

and/or

I2CLP>> Mode

setting.

If the

CLP Source

parameter is set to

and the circuit breaker is open, the protection is blocked

off or the threshold is changed depending on the

I2CLP> Mode

and/or

I2CLP>> Mode

setting.

The

CLP Source

parameter is common for proﬁ les

and

For both thresholds the following block criteria are available:

Logical block (Block1)

If the

I2>BLK1

and/or

I2>>BLK1

enabling parameters are set to

and a binary input is de-

signed for logical block (Block1), the concerning element is blocked off whenever the given input is
active.

[1]

The enabling parameters are available inside the

Set \ Proﬁ le A(or B) \ Negative sequence

overcurrent - 46M \

I2> Element

(

I2>> Elemen) \ Setpoints

menus, while the

Block1

function must

be assigned to the selected binary input inside the

Set \ Board1(2) inputs \ Binary input IN1-1...INx-x

menus.

Selective block (Block2)

All along the protective elements the selective block may be set.
The logic selectivity function may be performed by means any combination of the following I/O:

One committed pilot wire input (BLIN1).
One or more binary inputs designed for input selective block.
One committed pilot wire output (BLOUT1).
One or more output relays designed for output selective block.

Only when the committed pilot wire are used the continuity check of the pilot wire link is active.

Use of committed pilot wire input BLIN1:

The protection is blocked off according the selectivity block criteria when the input BLIN1 is active.
The information about phase or phase+earth block may be select programming the

ModeBLIN1

parameter inside the

Set \ Proﬁ le A(or B) \ Selective block-BLOCK2 \ Selective block IN

menus.

Use of binary inputs:

If the

I2>BLK2IN

and/or

I2>>BLK2IN

parameters are set to

and a binary input is de-

signed for selective block (Block2), the protection is blocked off by phase elements (Block2 Iph)
or by any protection element (Block2 Iph/IE) according the selectivity block criteria.

[2]

The enable

I2>BLK2IN

and/or

I2>>BLK2IN

parameters are available inside the

Set \ Proﬁ le A(or B) \

Negative sequence overcurrent - 46M \

I2> Element

(

I2>> Element) \ Setpoints

menus, while the

Block2 Iph

and

Block2 Iph/IE

functions must be assigned to the selected binary inputs inside

the

Set \ Board 1(2) inputs \ Binary input IN1-1...(IN1-x)

menus.

Use of committed pilot wire output BLOUT1:

The information about phase or phase+earth block may be select programming the

ModeBLOUT1

parameter (

OFF - ON IPh - ON IPh/IE - ON IE

) inside

Set \ Proﬁ le A(or B) \ Selective block-

BLOCK2 \ Selective block OUT

menus.

Use of output relay:

If the

I2>BLK2OUT

and/or

I2>>BLK2OUT

enable parameters are set to

and a output relay

is designed for selective block (Block2), the protection issues a block output by phase elements
(BLK2OUT-Iph) or by any protection element (BLK2OUT-Iph/IE), whenever the given element (Start
I>, Start I>> e/o Start I>>>) becomes active. The enable

I2>BLK2OUT

and/or

I2>>BLK2OUT

parameters (

OFF

) are available inside the

Set \ Proﬁ le A(or B) \ Negative sequence over-

current - 46M \

I2> Element

(

I2>> Element) \ Setpoints

menus, while the