Page 44 - 通用电气（中国）有限公司

EntelliGuard* L

Time Current Curves (cold state)

GF Protection Device

EntelliGuard GT Electronic Trip Unit EntelliGuard GT Electronic Trip Unit
10 LT set at Breaker Rating In - Time Current Curve 10 LT set at Breaker Rating In - Time Current Curve
Setting Range GF- Protection Device Setting Range GF- Protection Device

0,2 to 1 x In in steps of 0,01 0,2 to 1 x In in steps of 0,01
i f I t “max.”-ON- I t “max.”-ON-
2
2
- Band GFDB 01 - Band GFDB 02
- Band GFDB 03 - Band GFDB 04
- Band GFDB 05 - Band GFDB 06
- Band GFDB 07
Electronic Trip Units 0,8 1 13 13 0,8 1 14 14
- Band GFDB 08
- Band GFDB 09
- Band GFDB 10
- Band GFDB 11
- Band GFDB 12
- Band GFDB 13
- Band GFDB 14
12
12
11
0,6
0,6
11
10
10
9
0,4
0,4
9
8
7
8
6
0,2
3 7 5 5 3 1 0,2 4 6 4 2
0,1 0,1
Green line = Full Clearing time
Green line = Full Clearing time Red Line = Non Tripping time
Intro 1 Red Line = Non Tripping time 2
A Tripping Time In Seconds (s) Tripping Time In Seconds (s)
B 0,01 1 , 0 0 0 , 1 0 1 0 , 0 0 0,01 1 , 0 0 0 , 1 0 1 0 , 0 0
x Breaker Rating In x Breaker Rating In
] ]
C
Denonimation Description
In Current rating of Breaker
D Ir Current setting
LT Long Time or Overload protection
ST Short Time or Timed Short circuit protection
Instantaneous Short circuit protection
I (new IEC refererence I i )
E GF Groundfault
Ir LT or overload Current setting
ST or Timed Short circuit Current setting
Ist
(new IEC refererence I SD )
X Ii Ig Instantaneous Short circuit Current setting
Ground, or Earthfault Current setting
LTDB LT or overload time delay band
(new IEC refererence t r )
ST or short circuit time delay band
STDB
(new IEC refererence t SD )
I t 2 'Slope' setting on ST or GF device
I t 4 'Slope' setting on GF device
x LT Multiple of LT or overload Current setting
x In Multiple of Breaker Current rating
x CT Multiple of installed sensor rating
(In IEC EntelliGuard types =In)
I Standard Instantaneous
MCR Making Current Release
HSIOC Hi set Instantaneous protection.

B.14