Protection Settings
Ground Fault (Earth Fault) Protection
44
TemBreak
PRO
P_SE-UM-001-EN
– V1.2.0
Adjusting t
g
(Time Delay)
The trip time tolerance for ground protection is:
For t
g
= 50 ms: ±30 ms
For t
g
≥ 100 ms:
-20 ms / +50 ms
Adjustments to t
g
time delay can be made using one or a combination of the below methods:
-
P_SE OCR embedded display
-
TPED
-
TPCM
t
g
Time Delay Adjustment Range (ms)
50
100
200
300
400
500
I
2
t function for GF
When enabled, the I²t function for GF may be used to improve selectivity of ground faults with downstream devices by overlaying a supplementary I
2
t = K
curve within the GF time current curve, starting from the I
g
threshold setting up to the I
n
threshold setting.
Adjustments to the I
2
t for GF setting can be made using one or a combination of the below methods:
-
P_SE OCR embedded display
-
TPED
-
TPCM
P_SE OCR embedded display setting
TPED setting
TPCM setting
Default
OFF:
I
2
t for GF disabled
ON:
I
2
t for GF enabled
“I2t
ground
”
Off:
I
2
t for GF disabled
On:
I
2
t for GF enabled
Command ID: 213
“
I
2
t for GF setting
”
Hex 00 00:
I
2
t for GF disabled
Hex 00 01:
I
2
t for GF enabled
I
2
t for GF disabled
500
ms
tg
Summary of Contents for Terasaki TemBreak PRO P SE Series
Page 106: ...106 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex A Dimensions P160 Dimensions...
Page 107: ...Annex A Dimensions 107 TemBreak PRO P_SE UM 001 EN V1 2 0 P250 Dimensions...
Page 108: ...Annex A Dimensions 108 TemBreak PRO P_SE UM 001 EN V1 2 0 P400 Dimensions...
Page 109: ...Annex A Dimensions 109 TemBreak PRO P_SE UM 001 EN V1 2 0 P630 Dimensions...
Page 111: ...111 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex C I2t Let Through Curves P160_SE...
Page 112: ...Annex C I2t Let Through Curves 112 TemBreak PRO P_SE UM 001 EN V1 2 0 P250_SE...
Page 113: ...Annex C I2t Let Through Curves 113 TemBreak PRO P_SE UM 001 EN V1 2 0 P400_SE...
Page 114: ...Annex C I2t Let Through Curves 114 TemBreak PRO P_SE UM 001 EN V1 2 0 P630_SE...
Page 115: ...115 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex D Peak Let Through Curves P160_SE...
Page 116: ...116 TemBreak PRO P_SE UM 001 EN V1 2 0 P250_SE...
Page 117: ...117 TemBreak PRO P_SE UM 001 EN V1 2 0 P400_SE...
Page 118: ...118 TemBreak PRO P_SE UM 001 EN V1 2 0 P630_SE...
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