Time Current Curves (Cold State) - Lt & Stdb Protection Device - GE M-PACT Plus Manual

M-PACT Plus
Time Current Curves (cold state) - LT & STDB Protection Device
10000
2h
1000
100
10
A
1
B
C 0,1
1,00
x Breaker Rating In
X
10
17
1
15
0,8
13
0,6
0,4
11
9
7
0,2
5
0,1
3
1
0,01
0,001
1,00
x Breaker Rating In
A.12
MPRO 27 & 50 Electronic Trip Unit
LT set at Breaker Rating In - Time Current Curve
Setting Range
LT-Protection Device
Ie= 0.975, 0.9625, 0.95, 0.45 or 0.4 x In
- Band C-05
Ir= 0.4 - 1 x Ie in steps of 0.25
Total Setting Range 0,2 - 1 x In
- Band C-10
-
Band C-15
- Band C-21
ST protection - OFF
I protection set to 15 x Ie
10,00
7,2x
MPRO 27 & 50 Electronic Trip Unit
- Time Current Curve
ST-Protection Device
I
- Band STDB 01
-
ST set on breaker rating In Band STDB 03
Setting Range
- Band STDB 05
1,5 to 12 x Ir in steps of 0,5
- Band STDB 07
- Band STDB 09
-
Band STDB 11
17
- Band STDB 13
15
- Band STDB 15
13
- Band STDB 17
11
9
7
5
3
1
Green Line = Full Clearing Time
Red Line = Non Tripping Time
I protection set to 15 x Ie
10,00
10000
2h
1000
100
10
(1)
1
0,1
100,00
1,00
x Breaker Rating In
10
-
2 t - OFF-
1
0,8
0,6
0,4
0,2
0,1
0,01
(1)
0,001
100,00
1,00
x Breaker Rating In
MPRO 27 & 50 Electronic Trip Unit
LT set at Breaker Rating In - - Time Current Curve
Setting Range
LT-Protection Device
Ie= 0.975, 0.9625, 0.95, 0.45 or 0.4 x In
- Band C-01
Ir= 0.4 - 1 x Ie in steps of 0.25
Total Setting Range 0,2 - 1 x In
- Band C-18
ST protection - OFF
I protection set to 15 x Ie
10,00
7,2x
MPRO 27 & 50 Electronic Trip Unit
ST set on breaker rating In
Setting Range
1,5 to 12 x Ir in steps of 0,5
16
16
14
14
12
12
10
10
8
8
6
6
4
2
4
2
I protection set to 15 x Ie
10,00
(1)
100,00
- Time Current Curve
ST-Protection Device
I 2 t - OFF-
- Band STDB 02
-
Band STDB 04
- Band STDB 06
- Band STDB 08
- Band STDB 19
-
Band STDB 12
- Band STDB 14
- Band STDB 16
Green Line = Full Clearing Time
Red Line = Non Tripping Time
(1)
100,00