NHP Terasaki TemBreak PRO P SE Series, User Manual

Page: 31 / 122

Protection Settings
31
TemBreak PRO
P_SE-UM-001-EN
– V1.2.0
Adjusting I
r
(Current)
The LTD protection trip range is: 1.05...1.20 x I
r
according to standard AS/NZS IEC 60947.2.
The trip threshold tolerance I
r
for the long-time delay protection is +5% to +20%.
The I
r
trip threshold is firstly set using the I
r
max scale dial on the front of the MCCB, then, if necessary, from the embedded screen display to further adjust
in fine increments of 1A. Refer to the Commissioning – LTD Protection Adjustments (I
r
and t
r
) section for further information on using the I
r
max adjustment
dial and fine adjustments.
Fine adjustments to I
r
parameters can be made using one or combination of the below methods:
-
P_SE OCR embedded display
-
TPED
-
TPCM
Rating (I
n
)
Dial position
1 2 3 4 5 6 7 8 9 10
40A
I
r
max 16 I
r
max 18 I
r
max 20 I
r
max 22 I
r
max 25 I
r
max 28 I
r
max 32 I
r
max 34 I
r1
max 37 I
r1
max 40
16 17 … 18 19 … 20 21 … 22 23 … 25 26 … 28 29 … 32 33 … 34 35 … 37 38 … 40
100A
I
r
max 40 I
r
max 45 I
r
max 50 I
r
max 57 I
r
max 63 I
r
max 72 I
r
max 80 I
r
max 87 I
r1
max 93 I
r1
max 100
40 41 … 45 46 … 50 51 … 57 58 … 63 64 … 72 73 … 80 81 … 87 88 … 93 94 … 100
160A
I
r
max 63 I
r
max 70 I
r
max 80 I
r
max 90 I
r
max 100 I
r
max 110 I
r
max 125 I
r
max 135 I
r1
max 150 I
r1
max 160
63 64 … 70 71 … 80 81 … 90 91 … 100 101 … 110 111 … 125 126 … 135 136 … 150 151 … 160
250A
I
r
max 100 I
r
max 110 I
r
max 125 I
r
max 140 I
r
max 160 I
r
max 180 I
r
max 200 I
r
max 225 I
r1
max 250
100 101 … 110 111 … 125 126 … 140 141 … 160 161 … 180 181 … 200 201 … 225 226 … 250
400A
I
r
max 160 I
r
max 180 I
r
max 200 I
r
max 225 I
r
max 250 I
r
max 300 I
r
max 350 I
r
max 370 I
r1
max 400
160 161 … 180 181 … 200 201 … 225 226 … 250 251 … 300 301 … 350 351 … 370 371 … 400
630A
I
r
max 250 I
r
max 300 I
r
max 350 I
r
max 370 I
r
max 400 I
r
max 500 I
r
max 600 I
r
max 630
250 251 … 300 301 … 350 351 … 370 371 … 400 401 … 500 501 … 600 601 … 630
I
r
max scale setting (A)
I
r
fine adjustment range (A)
100
A
Ir