Toshiba Current Relay RC803A-HP1 Manuel d'utilisateur télécharger pdf (Page 13)

TOSHIBA

GF9EOO90

AdjustDents

6.1 Current setting

(1) When detected current is in a range of 0.5

5A:

After confirming that the current value under

noraal

load

condition is in a range of 0.5

SA,

set the current

adjusting knob to the desired detecting value.

(2)

When detected current is above

5A:

Using an external CT (current transformer),

properly

suited

for the detected Current value, connect the secondary side of

the CT to the

input

terminal

of the relay. Calculate the

secondary current

CorresDonding

to the detected current

value, based on the CT ratio. Then set the current adjusting

Knob to this calculated value.

6.2 Setting the detection delay

tiae

Setting time varies depending

upon

each individual

aDDlication.

Adjust the detection delay

tile

according to the following:

(1)

Hotor

load

TO avoid detection during start-up, set the delay tire to

aDDroxisately

120% of starting

tile.

(2)

Transformer

load

If the inrush current (inrush time varies

deDending

uDon

caDacity)

is large, set the delay

tile

approximately

120% of this inrush

tile.

Genenrally,

the

caDacity

Wall,

inrush

time

is short and therefore, even when the

adjusting knob is set at the

minims

position. there should

not be any nuisance tripping.

12-

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 19

Commentaires sur ces manuels

Pas de commentaire

Toshiba Current Relay RC803A-HP1 Manuel d'utilisateur Page 13

Commentaires sur ces manuels

Produits connexes et manuels pour Outils Toshiba Current Relay RC803A-HP1