L2234
Emax
87/158
Model
Scale
Page No.
Doc. No.
Apparatus
1SDH000460R0002
L2778
(1)
The minimum value of this trip is 1s regardless of the type of curve set (self-
protection).
(2)
These tolerances are based on the following assumptions:
- self-supplied relay at full power (without start-up)
- presence of auxiliary power supply
- two-phase or three-phase power supply
- preset trip time
≥
100 ms
(3)
no-trip time
(4)
the protection G is disabled for current values greater than 4In, where I4 < 0.5 In,
greater than 6 In, where 0.5 In
≤
I4 < 0.8 In and greater than 8 In where I4
≥
0.8 In.
(5)
Max trip time
For all cases not covered by the above hypotheses, the following tolerance values
apply:
Protections
Trip threshold
Trip time
L
Release between 1.05 and 1.25 x I1
± 20%
S
± 10%
± 20%
I
± 15%
≤
60ms
G
± 10%
± 20%
Others
± 20%
LC1/LC2 loads
50%
÷
100% step 0.05xI
1
control
Warning Iw
0,3
÷
10I
n
step 0,05xI
n
± 10%
10
÷
40 ms
Protection
Threshold
range
Time
Tolerance
(2)
Time
range
Threshold
tolerance
(2)
Disabling
Disabling
TRIP only
Zone
selectivity
Start-up threshold
Thermal memory
14.2.9.16 Table of measurements
Type of measurement
Standard operation range
Range of values measured by the relay
Range
Tolerance %
Phase and neutral currents
0,05 ... 16 In
0,3 ... 6 In
± 1,5
Internal ground fault current
0,05 ... 4 In
0,3 ... 4 In
± 1,5
(internal source round return)
External ground fault current
0,05 ... 4 In
0,3 ... 4 In
± 1,5
(external source round return)
Phase-to-phase and phase voltages
10 V
conc
... 1,1x690 V
conc
50 V
conc
... 1,1x690 V
conc
± 1
(measured at the module's input
and thus independent of the precision
relating to the use of any VT)
Residual voltage
10 V
conc
... 1,1x690 V
conc
50 V
conc
... 1,1x690 V
conc
± 1
(for systems with neutral only)
Peak factor
0,1 ... 6 In
0,3 ... 6 In
± 1,5
Total power factor
0,1 ... 1
0,5 ... 1
± 2,5
Mains frequency
35 ... 80 Hz
45 ... 66 Hz
± 0,2
Instantaneous active power on the
0,02 ... 16 Pn
0,3 ... 6 Pn
± 2,5
single phase and total system
Instantaneous reactive power on the
0,02 ... 16 Pn
0,3 ... 6 Pn
± 2,5
single phase and total system
Instantaneous apparent power on
0,02 ... 16 Pn
0,3 ... 6 Pn
± 2,5
the single phase and total system
Active energy
0,02 ... 16 Pn
0,3 ... 6 Pn
± 2,5
Reactive energy
0,02 ... 16 Pn
0,3 ... 6 Pn
± 2,5
Apparent energy
0,02 ... 16 Pn
0,3 ... 6 Pn
± 2.5