Page 45 - 通用电气（中国）有限公司

EntelliGuard* L

Time Current Curves (cold state)

Example of Full Time Current Curve

Time Current Curve
The EntelliGuard* Electronic trip unit has many sophisticated
setting features and an extremely broad setting range. On
request we can provide complete Time Current Curves covering
all installed protection devices. The curves can be produced for
any current setting within the range of the installed protection
devices, for one or for a combination of two breakers.
Please contact your local GE Sales Office for more information.

EntelliGuard GT Electronic Trip Unit Time current curves
10000 Time Current Curve
2h
Breaker In =2500A
LT- Protection Device
Set at Ie = 2400A
Ir at 0.9 =2160A
1000 Band C-10
ST- Protection Device
LT Band Intro
Set at 6 x Ir of 2160A
(Ist =12960A)
Band STDB 10
2
I t ON & Max. A
100
I- Protection Device
Set at 12 x Ie of 2400A
Ii = 28800A B
GF- Protection Device
Set at 0.6 x Ie of 2500A
10 (Ig = 1500A )
GF Band Band GFDB 6 C
2
I tON& Md
D

1 ST Band
E

X
0,1 I Band
Tripping Time In Seconds (s) 0,01 HSIOC Band

Red Line & Dark Blue Line = Non Tripping time
0,001
0
1 0 Green & Light Blue Linel = Full Clearing time 1 0 0 0 0 1 0 0 0 0 0
0
x Current in Amps 7,2 x
]

B.15