Siemens 6MD85, Manual

Page: 1193 / 1256

Measuring-Voltage Failure Detection
Setting Values
3ph.fail. - VA,VB,VC < 0.300 V to 340 000 V Increments of 0.001 V
3ph.fail. - phs.curr.release 1 A @ 50 and 100 Irated 0.030 A to 35.000 A Increments of 0.001 A
5 A @ 50 and 100 Irated 0.15 A to 175.00 A Increments of 0.01 A
1 A @ 1.6 Irated 0.001 A to 1.600 A Increments of 0.001 A
5 A @ 1.6 Irated 0.005 A to 8.000 A Increments of 0.001 A
3ph.fail. - phs.curr. jump 1 A @ 50 and 100 Irated 0.030 A to 35.000 A Increments of 0.001 A
5 A @ 50 and 100 Irated 0.15 A to 175.00 A Increments of 0.01 A
1 A @ 1.6 Irated 0.001 A to 1.600 A Increments of 0.001 A
5 A @ 1.6 Irated 0.005 A to 8.000 A Increments of 0.001 A
Asym.fail. - time delay 0.00 s to 30.00 s Increments of 0.01 s
SO 3ph.fail. - time delay 0.00 s to 30.00 s Increments of 0.01 s
Dropout
The larger dropout differential (=
| pickup value – dropout threshold |
) of the following 2 criteria
is used:
Dropout differential derived from the
Dropout ratio
parameter
If this parameter is not available, a dropout ratio of 95 % applies to the overvoltage protection and a dropout
ratio of 105 % applies to the undervoltage protection.
Minimum absolute dropout differential
150 mV sec.
Times
Pickup time
Approx. 10 ms + OOT 93 at 50 Hz
Approx. 10 ms + OOT at 60 Hz
Dropout time Approx. 20 ms + OOT
Times
Use in function group Line
Pickup time
Approx. 10 ms + OOT 94 at 50 Hz
Approx. 9 ms + OOT at 60 Hz
Use in other function group types
Pickup time
Approx. 20 ms + OOT 95 at 50 Hz
Approx. 18 ms + OOT at 60 Hz
Frequency Operating Range
0.9 ≤ f/f
rated
≤ 1.1 According to specified tolerances
10 Hz ≤ f < 0.9 f
rated
1.1 f
rated
< f ≤ 80 Hz
Slightly expanded tolerances
11.45
93 OOT (Output Operating Time) Additional delay of the output medium used, see chapter 11.1.4 Relay Outputs
94 OOT (Output Operating Time) Additional delay of the output medium used, for example 5 ms with fast relays, see chapter 11.1.4 Relay
Outputs
95 OOT (Output Operating Time) Additional delay of the output medium used, for example 5 ms with fast relays, see chapter 11.1.4 Relay
Outputs
Technical Data
11.45 Measuring-Voltage Failure Detection
SIPROTEC 5, High-Voltage Bay Controller, Manual 1193
C53000-G5040-C015-9, Edition 11.2017